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Dantas DV, Ribeiro CIR, Ito LSC, Pezzin APT, Silveira VF, Cardozo ALP, Gentil E, Monteiro IB, Ribeiro SA, Lorenzi L, Machado R. Influence of trophic overlaps and trophic niche amplitude on microplastic intake of fish species in shallow areas of a neotropical coastal lagoon. Sci Total Environ 2024; 927:172235. [PMID: 38582125 DOI: 10.1016/j.scitotenv.2024.172235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
Plastic pollution is a global challenge that affects all marine ecosystems, and reflects all types of uses and activities of human society in these environments. In marine ecosystems, microplastics and mesoplastics interact with invertebrates and become available to higher predators, such as fish, which can ingest these contaminants. This study aimed to analyze how ecological food interactions (diet overlap and trophic niche amplitude) among fish species contribute to the ingestion of plastic particles. The gastrointestinal contents of six fish species (Atherinella brasiliensis, Eucinostomus melanopterus, Eucinostomus argenteus, Genidens genidens, Coptodon rendalli, and Geophagus brasiliensis) were analyzed to identify prey items and plastic ingestion. Based on the ontogenetic classification, A. brasiliensis, E. melanopterus, and G. genidens were divided into juveniles and adults, and the six fish species analyzed were divided into nine predator groups. Most of the plastics ingested by the fish species were blue microplastic (MP) fibers (< 0.05 mm) classified as polyester terephthalate, polyethylene, and polybutadiene. Considering all the analyzed predators, the average number and weight of plastics ingested per individual were 2.01 and 0.0005 g, respectively. We observed that predators with a high trophic overlap could present a relationship with the intake of MP fibers owing to predation on the same resources. In addition, we observed the general pattern that when a species expands its trophic diversity and niche, it can become more susceptible to plastic ingestion. For example, the species with the highest Levin niche amplitude, E. argenteus juveniles, had the highest mean number (2.9) of ingested MP fibers. Understanding the feeding ecology and interactions among species, considering how each predator uses habitats and food resources, can provide a better understanding of how plastic particle contamination occurs and which habitats are contaminated with these polluting substances.
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Affiliation(s)
- David V Dantas
- Grupo de Gestão, Ecologia e Tecnologia Marinha (GTMar), Departamento de Engenharia de Pesca e Ciências Biológicas, Universidade do Estado de Santa Catarina (UDESC), Brazil; Programa de Pós-Graduação em Planejamento Territorial e Desenvolvimento Socioambiental (PPGPLAN/UDESC), Brazil.
| | - Cristian I R Ribeiro
- Grupo de Gestão, Ecologia e Tecnologia Marinha (GTMar), Departamento de Engenharia de Pesca e Ciências Biológicas, Universidade do Estado de Santa Catarina (UDESC), Brazil
| | - Leticia S C Ito
- Grupo de Gestão, Ecologia e Tecnologia Marinha (GTMar), Departamento de Engenharia de Pesca e Ciências Biológicas, Universidade do Estado de Santa Catarina (UDESC), Brazil
| | - Ana P T Pezzin
- Grupo de Materiais Poliméricos, Universidade da Região de Joinville (UNIVILLE), Brazil; Programa de Pós-Graduação em Engenharia de Processos (PPGEP - UNIVILLE), Brazil
| | - Victória F Silveira
- Grupo de Materiais Poliméricos, Universidade da Região de Joinville (UNIVILLE), Brazil; Programa de Pós-Graduação em Saúde e Meio Ambiente PPGSMA, UNIVILLE, Brazil
| | - Ana L P Cardozo
- Grupo de Gestão, Ecologia e Tecnologia Marinha (GTMar), Departamento de Engenharia de Pesca e Ciências Biológicas, Universidade do Estado de Santa Catarina (UDESC), Brazil; Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais (PEA), Departamento de Biologia, Centro de Ciências Biológicas, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Eduardo Gentil
- Grupo de Gestão, Ecologia e Tecnologia Marinha (GTMar), Departamento de Engenharia de Pesca e Ciências Biológicas, Universidade do Estado de Santa Catarina (UDESC), Brazil; Programa de Pós-Graduação em Planejamento Territorial e Desenvolvimento Socioambiental (PPGPLAN/UDESC), Brazil
| | - Isabel B Monteiro
- Programa de Pós-Graduação em Recursos Pesqueiros e Engenharia de Pesca (PREP), UNIOESTE, Brazil
| | - Sofia A Ribeiro
- Grupo de Gestão, Ecologia e Tecnologia Marinha (GTMar), Departamento de Engenharia de Pesca e Ciências Biológicas, Universidade do Estado de Santa Catarina (UDESC), Brazil; Programa de Pós-Graduação em Planejamento Territorial e Desenvolvimento Socioambiental (PPGPLAN/UDESC), Brazil
| | - Luciano Lorenzi
- Programa de Pós-Graduação em Saúde e Meio Ambiente PPGSMA, UNIVILLE, Brazil; Grupo de Estudos de Organismos Bentônicos de Fundos Inconsolidados Vegetados e Não Vegetados, Departamento de Ciências Biológicas - Biologia Marinha, UNIVILLE, Brazil
| | - Rodrigo Machado
- Grupo de Gestão, Ecologia e Tecnologia Marinha (GTMar), Departamento de Engenharia de Pesca e Ciências Biológicas, Universidade do Estado de Santa Catarina (UDESC), Brazil; Laboratório de Ecologia e Biodiversidade Animal (LABAN), Museu de Zoologia Prof Morgana Cirimbelli Gaidzinski, Universidade do Extremo Sul Catarinense (UNESC), Criciúma, Brazil
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Smeaton C, Garrett E, Koot MB, Ladd CJT, Miller LC, McMahon L, Foster B, Barlow NLM, Blake W, Gehrels WR, Skov MW, Austin WEN. Organic carbon accumulation in British saltmarshes. Sci Total Environ 2024; 926:172104. [PMID: 38556016 DOI: 10.1016/j.scitotenv.2024.172104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 03/25/2024] [Accepted: 03/28/2024] [Indexed: 04/02/2024]
Abstract
Saltmarshes are a crucial component of the coastal carbon (C) system and provide a natural climate regulation service through the accumulation and long-term storage of organic carbon (OC) in their soils. These coastal ecosystems are under growing pressure from a changing climate and increasing anthropogenic disturbance. To manage and protect these ecosystems for C and to allow their inclusion in emissions and natural-capital accounting, as well as carbon markets, accurate and reliable estimates of OC accumulation are required. However, globally, such data are rare or of varying quality. Here, we quantify sedimentation rates and OC densities for 21 saltmarshes in Great Britain (GB). We estimate that, on average, saltmarshes accumulate OC at a rate of 110.88 ± 43.12 g C m-2 yr-1. This is considerably less than widely applied global saltmarsh averages. It is therefore highly likely that the contribution of northern European saltmarshes to global saltmarsh OC accumulation has been significantly overestimated. Taking account of the climatic, geomorphological, oceanographic, and ecological characteristics of all GB saltmarshes and the areal extent of different saltmarsh zones, we estimate that the 451.65 km2 of GB saltmarsh accumulates 46,563 ± 4353 t of OC annually. These low OC accumulation rates underline the importance of the 5.20 ± 0.65 million tonnes of OC already stored in these vulnerable coastal ecosystems. Going forward the protection and preservation of the existing stores of OC in GB saltmarshes must be a priority for the UK as this will provide climate benefits through avoided emissions several times more significant than the annual accumulation of OC in these ecosystems.
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Affiliation(s)
- Craig Smeaton
- School of Geography and Sustainable Development, University of St Andrews, St Andrews, United Kingdom.
| | - Ed Garrett
- Department of Environment and Geography, Wentworth Way, University of York, York, United Kingdom.
| | - Martha B Koot
- School of Geography, Earth and Environmental Sciences, University of Plymouth, Plymouth, United Kingdom
| | - Cai J T Ladd
- School of Biosciences, Geography and Physics, University of Swansea, Swansea, United Kingdom; School of Ocean Sciences, Bangor University, Menai Bridge, United Kingdom
| | - Lucy C Miller
- School of Geography and Sustainable Development, University of St Andrews, St Andrews, United Kingdom
| | - Lucy McMahon
- Department of Environment and Geography, Wentworth Way, University of York, York, United Kingdom; Department of Natural Sciences, Manchester Metropolitan University, Manchester, United Kingdom
| | - Bradley Foster
- Department of Environment and Geography, Wentworth Way, University of York, York, United Kingdom
| | - Natasha L M Barlow
- School of Earth and Environment, University of Leeds, Leeds, United Kingdom
| | - William Blake
- School of Geography, Earth and Environmental Sciences, University of Plymouth, Plymouth, United Kingdom
| | - W Roland Gehrels
- Department of Environment and Geography, Wentworth Way, University of York, York, United Kingdom
| | - Martin W Skov
- School of Ocean Sciences, Bangor University, Menai Bridge, United Kingdom
| | - William E N Austin
- School of Geography and Sustainable Development, University of St Andrews, St Andrews, United Kingdom; Scottish Association of Marine Science, Oban, United Kingdom
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Feder RC, White JR. Impact of freshwater river reconnection on porewater salinity and ammonium availability in coastal brackish marsh soils. Sci Total Environ 2024; 926:172131. [PMID: 38569953 DOI: 10.1016/j.scitotenv.2024.172131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/26/2024] [Accepted: 03/29/2024] [Indexed: 04/05/2024]
Abstract
Restoring freshwater flows to wetland ecosystems is an increasingly common tool for reversing saltwater intrusion/chronic salinization. Hydrologic restoration projects can deliver large volumes of sediment and fresh water to coastal basins, episodically exposing brackish and salt marsh vegetated soils to low surface water salinities. Yet little is known about the impacts of river reconnection/diversions to porewater salinity of the active root zone (0-30 cm) and salinity dependent soil biogeochemical processes like sorption. Intact soil cores from a brackish marsh site in mid-Barataria Basin, LA were subjected to a simulated river diversion opening to examine how porewater salinity and ammonium (NH4+) availability change with depth and time. Quadruplicate soil cores were inundated with continuously flowing fresh (0 salinity) water for 0, 7, or 28 d then measured for porewater salinity and NH4+ partition coefficient (exchangeable NH4+:porewater NH4+) every 2 cm for the top 10 cm of soil. Porewater salinity decreased in the 0-4 cm interval between 0 and 7 d of the simulated river diversion and increased in the 8-10 cm interval between 7 and 28 d. Overall, depth-averaged porewater salinity of the top 10 cm did not significantly change between 0 and 28 d of the simulated river diversion. Ammonium partition coefficients increased only in the 0-2 cm interval between 0 and 7 d of the simulated river diversion, likely due to freshening-induced NH4+ adsorption. These results indicate that the physicochemical environment of brackish marsh soils is relatively resistant to a single surface water freshening over one month. Models utilized by the state of Louisiana may be overpredicting freshening of the marsh soil porewater in Mid-Barataria Basin in response to the episodic operation of the Mid-Barataria Sediment Diversion. This study demonstrates the importance of measuring diffusive-adsorptive flux of major cations and anions when modeling vertical salt transfer in brackish marsh soils.
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Affiliation(s)
- Robert C Feder
- Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - John R White
- Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge, LA, USA.
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Wu H, Zhang Z, Zhao W, Jin H, Sang L, Wu H. Spartina alterniflora invasion decouples multiple elements in coastal wetland soils. Sci Total Environ 2024; 924:171502. [PMID: 38453070 DOI: 10.1016/j.scitotenv.2024.171502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/02/2024] [Accepted: 03/03/2024] [Indexed: 03/09/2024]
Abstract
Deciphering the biogeochemical coupling of multiple elements in soils could better mechanistic understanding of ecosystem stability response to the alien invasion. The coupling of 45 elements in soils from wetlands covered by Spartina alterniflora (Sa) was compared with that in soils covered by native Phragmites australis (Pa) in coastal regions of China. Results showed that S. alterniflora invasion not only significantly reshaped geochemical enrichment and dispersion states, but also decoupled the coupling of multiple elements in soils compared with Pa. Atomic mass emerged as the primary factor governing the coupling of multiple elements, of which a significantly positive correlation exhibited between atomic mass with elemental coupling in Pa, but no such relation was observed in SaThe coupling of lighter elements was more susceptible to and generally enhanced by the invasion of S. alterniflora compared to the heavier, of which carbon, iron (Fe), and cadmium (Cd) had the highest susceptibility. Besides atomic mass, biological processes (represented by soil organic carbon, nitrogen, phosphorus, and sulfur), interactions between sea and land (represented by salinity and pH), and their combination explained 17 %, 10 %, and 13 % variation in the coupling of multiple elements, respectively. The present work confirmed that S. alterniflora invasion was the important factor driving soil multi-element cycling and covariation in coastal wetlands.
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Affiliation(s)
- Haobo Wu
- State Key Laboratory of Black Soils Conservation and Utilization, Institute of Northeast Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130012, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhongsheng Zhang
- State Key Laboratory of Black Soils Conservation and Utilization, Institute of Northeast Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130012, China.
| | - Wenwen Zhao
- State Key Laboratory of Black Soils Conservation and Utilization, Institute of Northeast Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130012, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongbiao Jin
- State Key Laboratory of Black Soils Conservation and Utilization, Institute of Northeast Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130012, China
| | - Luan Sang
- State Key Laboratory of Black Soils Conservation and Utilization, Institute of Northeast Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130012, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haitao Wu
- State Key Laboratory of Black Soils Conservation and Utilization, Institute of Northeast Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130012, China
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Wang S, Liu T, Zhu E, He C, Shi Q, Feng X. Potential retention of dissolved organic matter by soil minerals during wetland water-table fluctuations. Water Res 2024; 254:121412. [PMID: 38457944 DOI: 10.1016/j.watres.2024.121412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 02/15/2024] [Accepted: 03/02/2024] [Indexed: 03/10/2024]
Abstract
Wetlands export large amounts of dissolved organic carbon (DOC) downstream, which is sensitive to water-table fluctuations (WTFs). While numerous studies have shown that WTFs may decrease wetland DOC via enhancing DOC biodegradation, an alternative pathway, i.e., retention of dissolved organic matter (DOM) by soil minerals, remains under-investigated. Here, we conducted a water-table manipulation experiment on intact soil columns collected from three wetlands with varying contents of reactive metals and clay to examine the potential retention of DOM by soil minerals during WTFs. Using batch sorption experiments and Fourier transform ion cyclotron resonance mass spectrometry, we showed that mineral (bentonite) sorption mainly retained lignin-, aromatic- and humic-like compounds (i.e., adsorbable compounds), in contrast to the preferential removal of protein- and carbohydrate-like compounds during biodegradation. Seven cycles of WTFs significantly decreased the intensity of adsorbable compounds in DOM (by 50 ± 21% based on fluorescence spectroscopy) and DOC adsorbability (by 2-20% and 1.9-12.7 mg L-1 based on batch sorption experiment), to a comparable extent compared with biodegradable compounds (by 11-32% and 1.6-15.2 mg L-1). Furthermore, oxidation of soil ferrous iron [Fe(II)] exerted a major control on the magnitude of potential DOM retention by minerals, while WTFs increased mineral-bound lignin phenols in the Zoige soil with the highest content of lignin phenols and Fe(II). Collectively, these results suggest that DOM retention by minerals likely played an important role in DOC decrease during WTFs, especially in soils with high contents of oxidizable Fe. Our findings support the 'iron gate' mechanism of soil carbon protection by newly-formed Fe (hydr)oxides during water-table decline, and highlight an underappreciated process (mineral-DOM interaction) leading to contrasting fate (i.e., preservation) of DOC in wetlands compared to biodegradation. Mineral retention of wetland DOC hence deserves more attention under changing climate and human activities.
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Affiliation(s)
- Simin Wang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, PR China; China National Botanical Garden, Beijing 100093, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; National Engineering Laboratory for Site Remediation Technologies, Beijing Construction Engineering Group Environmental Remediation Co. Ltd., Beijing 100015, PR China
| | - Ting Liu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, PR China; China National Botanical Garden, Beijing 100093, PR China.
| | - Erxiong Zhu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, PR China; China National Botanical Garden, Beijing 100093, PR China
| | - Chen He
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, PR China
| | - Quan Shi
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, PR China
| | - Xiaojuan Feng
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, PR China; China National Botanical Garden, Beijing 100093, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
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Cakin I, Morrissey B, Gordon M, Gaffney PPJ, Marcello L, Macgregor K, Taggart MA. Comparing DNA isolation and sequencing strategies for 16S rRNA gene amplicon analysis in biofilm containing environments. J Microbiol Methods 2024; 220:106921. [PMID: 38494090 DOI: 10.1016/j.mimet.2024.106921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 11/10/2023] [Accepted: 03/12/2024] [Indexed: 03/19/2024]
Abstract
Bacteria are primarily responsible for biological water treatment processes in constructed wetland systems. Gravel in constructed wetlands serves as an essential substrate onto which complex bacterial biofilms may successfully grow and evolve. To fully understand the bacterial community in these systems it is crucial to properly isolate biofilms and process DNA from such substrates. This study looked at how best to isolate bacterial biofilms from gravel substrates in terms of bacterial richness. It considered factors including the duration of agitation during extraction, extraction temperature, and enzyme usage. Further, the 16S taxonomy data subsequently produced from Illumina MiSeq reads (using the SILVA 132 ribosomal RNA (rRNA) database on the DADA2 pipeline) were compared with the 16S data produced from Oxford Nanopore Technologies (ONT) MinION reads (using the NCBI 16S database on the EPI2ME pipeline). Finally, performance was tested by comparing the taxonomy data generated from the Illumina MiSeq and ONT MinION reads using the same (SILVA 132) database. We found no significant differences in the effective number of species observed when using different bacterial biofilm detachment techniques. However, enzyme treatment enhanced the total concentration of DNA. In terms of wetland community profiles, relative abundance differences within each sample type were clearer at the genus level. For genus-level taxonomic classification, MinION sequencing with the EPI2ME pipeline (NCBI database) produced bacterial abundance information that was poorly correlated with that from the Illumina MiSeq and DADA2 pipelines (SILVA132 database). When using the same database for each sequencing technology (SILVA132), the correlation between relative abundances at genus-level improved from negligible to moderate. This study provides detailed information of value to researchers working on constructed wetlands regarding efficient biofilm detachment techniques for DNA isolation and 16 s metabarcoding platforms for sequencing and data analysis.
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Affiliation(s)
- Ilgaz Cakin
- Environmental Research Institute, University of the Highlands and Islands, Castle Street, Thurso, Caithness, Scotland KW14 7JD, UK.
| | - Barbara Morrissey
- Institute for Biodiversity and Freshwater Conservation, University of the Highlands and Islands, 1 Inverness Campus, Inverness, Scotland IV2 5NA, UK
| | - Matthew Gordon
- The Scotch Whisky Research Institute, The Robertson Trust Building, Research Avenue North, Edinburgh, Scotland EH14 4AP, UK
| | - Paul P J Gaffney
- Environmental Research Institute, University of the Highlands and Islands, Castle Street, Thurso, Caithness, Scotland KW14 7JD, UK; Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Lucio Marcello
- Institute for Biodiversity and Freshwater Conservation, University of the Highlands and Islands, 1 Inverness Campus, Inverness, Scotland IV2 5NA, UK
| | - Kenneth Macgregor
- The Scotch Whisky Research Institute, The Robertson Trust Building, Research Avenue North, Edinburgh, Scotland EH14 4AP, UK
| | - Mark A Taggart
- Environmental Research Institute, University of the Highlands and Islands, Castle Street, Thurso, Caithness, Scotland KW14 7JD, UK
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Deng D, He G, Yang Z, Xiong X, Liu W. Activity and community structure of nitrifiers and denitrifiers in nitrogen-polluted rivers along a latitudinal gradient. Water Res 2024; 254:121317. [PMID: 38401285 DOI: 10.1016/j.watres.2024.121317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/23/2024] [Accepted: 02/14/2024] [Indexed: 02/26/2024]
Abstract
Nitrogen (N) cycling in rivers is particularly active and dynamic due to excess nutrient inputs worldwide. However, the multidimensional spatial patterns of the activity and community structure of N-cycling microorganisms in rivers remain unclear, limiting our understanding of river ecological functions, especially N removal capacity. Here, we measured the nitrification and denitrification rates and identified nitrifying and denitrifying microorganisms using high-throughput sequencing of archaeal amoA, bacterial amoA, nirK, and nirS genes in channel sediments, riparian rhizosphere soils, and riparian bulk soils of 30 N-polluted rivers across China. Results showed that in the lateral dimension, nitrification rates in sediments did not differ significantly from those in rhizosphere and bulk soils, but denitrification rates were higher in sediments than in bulk soils. However, the archaeal amoA gene abundance in sediments was considerably lower than that in rhizosphere and bulk soils, and bacterial amoA gene abundance in sediments was greater than that in rhizosphere soils. In the vertical dimension, both nitrification and denitrification rates in riparian bulk soils decreased with soil depth, and topsoils harbored more nitrifying and denitrifying microbes than subsoils. Denitrification but not nitrification rates increased with latitude and altitude but decreased with increasing mean annual temperature and precipitation. Overall, these results provide new insights into the multidimensional spatial patterns of river N cycling at a large scale, which is crucial to evaluating the N removal function of global rivers.
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Affiliation(s)
- Danli Deng
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Hubei Field Observation and Scientific Research Stations for Water Ecosystem in Three Gorges Reservoir, China Three Gorges University, Yichang 443002, China
| | - Gang He
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Zhengjian Yang
- Hubei Field Observation and Scientific Research Stations for Water Ecosystem in Three Gorges Reservoir, China Three Gorges University, Yichang 443002, China
| | - Xiang Xiong
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
| | - Wenzhi Liu
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, the Chinese Academy of Sciences & Hubei Province, Wuhan 430074, China.
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8
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Li Q, Deng H, He R, Hu S, Sun L, Li M, Wu QL, Zeng J. Effects of different emergent macrophytes on methane flux and rhizosphere microbial communities in wetlands. Sci Total Environ 2024:172565. [PMID: 38642750 DOI: 10.1016/j.scitotenv.2024.172565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 03/02/2024] [Accepted: 04/16/2024] [Indexed: 04/22/2024]
Abstract
Emergent macrophytes are of key importance for the structure and functioning of wetland ecosystems and play a significant role in climate regulation, element cycling, and greenhouse gas emissions. However, our understanding of how greenhouse gas (GHG) flux differs among macrophyte species and its links with the microbial community remains limited. In this study, we investigated the rhizosphere microbial communities (including total bacteria, methanotrophs, and methanogens) and the GHG fluxes associated with four emergent macrophytes-Phragmites australis, Thalia dealbata, Pontederia cordata, and Zizania latifolia-collected from Xuanwu Lake wetland, China. We observed the highest CH4 flux (FCH4) (9.35 ± 2.52 mg·m-2·h-1) from Z. latifolia zone, followed by P. australis, P. cordata, and T. dealbata zones (5.38 ± 1.63, 2.38 ± 2.91, and 2.02 ± 0.69 mg·m-2·h-1, respectively). In zone without macrophyte growth, the CH4 flux was 0.02 ± 0.24 mg·m-2·h-1. Methanogenesis is methylotrophic at all sites, as the 13C-CH4 values were higher than -64 ‰ and the fractionation coefficient were lower than 1.055. We found a positive linear relationship between CH4 flux and the methanogen community, in particular the relative abundance of Methanobacterium and Methanosarcina, indicating that the variations in CH4 flux among the studied macrophyte species might be attributed to differences in rhizosphere microbial communities. The methane emission in various macrophyte zones may be due to the higher capacity of methanogenesis compared to methane oxidation which is inhibited by nutrient-rich sediments. Our findings provide insights for selecting specific emergent macrophytes characterized by low CH4 flux in wetland ecological restoration.
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Affiliation(s)
- Qisheng Li
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongyang Deng
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rujia He
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; College of Hydrology and Water Resources, Hohai University, Nanjing 210024, China
| | - Siwen Hu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; College of Hydrology and Water Resources, Hohai University, Nanjing 210024, China.
| | - Lijie Sun
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; College of Hydrology and Water Resources, Hohai University, Nanjing 210024, China
| | - Mengyuan Li
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Qinglong L Wu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; Sino-Danish Centre for Education and Research, University of Chinese Academy of Sciences, Beijing 100039, China; Center for Evolution and Conservation Biology, Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
| | - Jin Zeng
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; Sino-Danish Centre for Education and Research, University of Chinese Academy of Sciences, Beijing 100039, China; Poyang Lake Wetland Research Station, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Jiujiang 332899, China.
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9
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Tomassini L, Dominguez MS, Esquius KS, Randazzo VR. [First isolation of Acanthamoeba spp. in seawater from the southeast of Buenos Aires (SE, Argentina)]. Rev Argent Microbiol 2024:S0325-7541(24)00038-5. [PMID: 38632019 DOI: 10.1016/j.ram.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/27/2023] [Accepted: 02/16/2024] [Indexed: 04/19/2024] Open
Abstract
Free-living amoebae (FLA) of the genus Acanthamoeba are ubiquitous and amphizoic protozoa that colonize aquatic and terrestrial habitats and can serve as reservoirs for other microorganisms. They are considered econoses that can cause severe and rare pathologies. Due to limited epidemiological data available, the objective of this study was to investigate the presence of Acanthamoeba in coastal wetlands of the southeast of Buenos Aires province and evaluate their association with bacteriological and environmental variables. From February 2021 to July 2022, 22 seawater samples were collected at different points along the coast of the city of Mar del Plata (Buenos Aires, Argentina). Environmental parameters were determined and physicochemical and bacteriological studies, morphological identification, cultures and molecular typification were conducted. Regardless of the environmental and bacteriological variables, the presence of Acanthamoeba spp. was molecularly confirmed in 54.54% of the samples, being the first report of these protozoa in seawater in Argentina.
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Affiliation(s)
- Loriana Tomassini
- Hospital Interzonal Especializado Materno Infantil "Don Victorio Tetamanti", Mar del Plata, Buenos Aires, Argentina; Universidad Nacional de Mar del Plata, Mar del Plata, Buenos Aires, Argentina.
| | - María Soledad Dominguez
- Instituto de Investigaciones Marinas y Costeras, IIMyC - Facultad de Ciencias Exactas y Naturales, CONICET, Universidad Nacional de Mar del Plata, Mar del Plata, Buenos Aires, Argentina
| | - Karina Soledad Esquius
- Instituto de Investigaciones Marinas y Costeras, IIMyC - Facultad de Ciencias Exactas y Naturales, CONICET, Universidad Nacional de Mar del Plata, Mar del Plata, Buenos Aires, Argentina
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10
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Mohite JA, Manvi SS, Pardhi K, Bahulikar RA, Deshpande S, Patange S, Joshi M, Kulkarni S, Rahalkar MC. Diverse type I and type II methanotrophs cultivated from an Indian freshwater wetland habitat. Int Microbiol 2024; 27:607-614. [PMID: 37556066 DOI: 10.1007/s10123-023-00415-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/26/2023] [Accepted: 08/02/2023] [Indexed: 08/10/2023]
Abstract
Wetlands are the main natural sources of methane emissions, which make up a significant portion of greenhouse gas emissions. Such wetland patches serve as rich habitats for aerobic methanotrophs. Limited knowledge of methanotrophs from tropical wetlands widens the scope of study from these habitats. In the present study, a freshwater wetland in a tropical region in India was sampled and serially diluted to obtain methanotrophs in culture. This was followed by the isolation of methanotrophs on agarose-containing plates, incubated under methane: air atmosphere. Methanotrophs are difficult to cultivate, and very few cultures of methanotrophs are available from tropical wetlands. Our current study reports the cultivation of a diverse community of methanotrophs from six genera, namely, Methylomonas, Methylococcus, Methylomagnum, Methylocucumis (type I methanotrophs) along with Methylocystis, Methylosinus (type II methanotrophs). A high abundance of methanotrophs (106-1010 methanotrophs/g fresh weight) was observed in the samples. A Methylococcus strain could represent a putative novel species that was also isolated. Cultures of Methylomagnum and Methylocucumis, two newly described type I methanotrophs exclusively found in rice fields, were obtained. A large number of Methylomonas koyamae strains were cultured. Our study is pioneering in the documentation of culturable methanotrophs from a typical tropical wetland patch. The isolated methanotrophs can act as models for studying methanotroph-based methane mitigation from wetland habitats and can be used for various mitigation and valorization applications.
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Affiliation(s)
- Jyoti A Mohite
- C2-83,84, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, Maharashtra, 411004, India
- Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra, 411007, India
| | - Shubha S Manvi
- C2-83,84, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, Maharashtra, 411004, India
- Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra, 411007, India
| | - Kajal Pardhi
- C2-83,84, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, Maharashtra, 411004, India
- Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra, 411007, India
| | - Rahul A Bahulikar
- BAIF Development Research Foundation, Central Research Station, Urulikanchan, Pune, 412202, India
| | | | - Sanjana Patange
- Modern College, Shivajinagar, Pune, Maharashtra, 411005, India
| | - Mansi Joshi
- Fergusson College, F. C. Road, Pune, Maharashtra, 411004, India
| | | | - Monali C Rahalkar
- C2-83,84, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, Maharashtra, 411004, India.
- Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra, 411007, India.
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11
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Nzabanita D, Shen H, Grist S, Lewis PJ, Hampton JO, Firestone SM, Hufschmid J, Nugegoda D. Exposure to Persistent Organic Pollutants in Australian Waterbirds. Environ Toxicol Chem 2024; 43:736-747. [PMID: 38085117 DOI: 10.1002/etc.5804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 08/30/2023] [Accepted: 12/05/2023] [Indexed: 01/17/2024]
Abstract
There is growing worldwide recognition of the threat posed by persistent organic pollutants (POPs) to wildlife populations. We aimed to measure exposure levels to POPs in a Southern Hemisphere aquatic waterbird species, the nomadic gray teal (Anas gracilis), which is found across Australia. We collected wings from 39 ducks harvested by recreational hunters at two sites (one coastal, one inland) in Victoria, southeastern Australia, in 2021. We examined three groups of POPs: nine congeners of polychlorinated biphenyls (PCBs), 13 organochlorine pesticides (OCPs), and 12 polycyclic aromatic hydrocarbons (PAHs). The PCBs, OCPs, and PAHs were detected at quantifiable levels in 13%, 72%, and 100% of birds, respectively. Of the congeners we tested for in PCBs, OCPs, and PAHs, 33%, 38%, and 100% were detected at quantifiable levels, respectively. The highest levels of exposure to POPs that we found were to the PAH benzo[b]fluoranthene, occurring at a concentration range of 1.78 to 161.05 ng/g wet weight. There were some trends detected relating to differences between geographical sites, with higher levels of several PAHs at the coastal versus inland site. There were several strong, positive associations among PAHs found. We discuss potential sources for the POPs detected, including industrial and agricultural sources, and the likely role of large-scale forest fires in PAH levels. Our results confirm that while Australian waterbirds are exposed to a variety of POPs, exposure levels are currently relatively low. Additional future investigations are required to further characterize POPs within Australian waterbird species. Environ Toxicol Chem 2024;43:736-747. © 2023 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Damien Nzabanita
- School of Science, Royal Melbourne Institute of Technology, Melbourne, Victoria, Australia
| | - Hao Shen
- School of Science, Royal Melbourne Institute of Technology, Melbourne, Victoria, Australia
| | - Stephen Grist
- School of Science, Royal Melbourne Institute of Technology, Melbourne, Victoria, Australia
| | - Phoebe J Lewis
- Applied Sciences Division, Environment Protection Authority Victoria, Macleod, Victoria, Australia
| | - Jordan O Hampton
- Faculty of Science, Melbourne Veterinary School, University of Melbourne, Werribee, Victoria, Australia
- Harry Butler Institute, Murdoch University, Murdoch, Western Australia, Australia
| | - Simon M Firestone
- Faculty of Science, Melbourne Veterinary School, University of Melbourne, Werribee, Victoria, Australia
| | - Jasmin Hufschmid
- Faculty of Science, Melbourne Veterinary School, University of Melbourne, Werribee, Victoria, Australia
| | - Dayanthi Nugegoda
- School of Science, Royal Melbourne Institute of Technology, Melbourne, Victoria, Australia
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12
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Moreira LL, Tavella RA, da Silva Bonifácio A, de Lima Brum R, da Silva Freitas L, da Rosa Moraes NG, Fiasconaro ML, Ramires PF, Penteado JO, Baisch PRM, da Silva Júnior FMR. Bioaccumulation of metals in Spartina alterniflora salt marshes in the estuary of the World's Largest Choked Lagoon. Environ Sci Pollut Res Int 2024:10.1007/s11356-024-32810-3. [PMID: 38456979 DOI: 10.1007/s11356-024-32810-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 03/03/2024] [Indexed: 03/09/2024]
Abstract
Salt marshes are capable of mitigating metal pollution in coastal environments, yet the efficacy of this remediation is contingent upon various environmental factors and the plant species involved. This study investigates the influence of different anthropogenic activities, including industrial, urban, recreational (in an insular area), and dredging operations, on the bioaccumulation of eight metals (As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn) within Spartina alterniflora Loisel. in the Patos Lagoon estuary, Brazil. The research aims to assess the pattern of metal bioaccumulation and distribution within the plant's leaves, stems, and roots while also examining metal presence in the sediment. Our main findings reveal that S. alterniflora exhibited elevated metal levels in its plant structure directly related with the metal concentrations in the surrounding sediment, which, in turn, is related to the different anthropogenic activities. The industrial area presented the highest metal levels in sediment and plant sections, followed by dredging, insular, and urban areas. This same pattern was mirrored for the bioconcetration factors (BCF), with the BCFs consistently indicating active metal bioaccumulation across all areas and for most of the metals. This provides evidence of the metal bioaccumulation pattern in S. alterniflora, with elevated BCFs in areas affected by activities with a higher degree of impact. Translocation factors (TF) showed varying metal mobility patterns within the plant's below-ground and above-ground sections across the different areas, with only Hg exhibiting consistent translocation across all study areas. Zn was the primary metal contributor in all plant sections, followed by Pb and Cu. It is worth noting that Pb is a non-essential metal for this plant, highlighting the relationship between elevated Pb contributions in the plant sections and the bioaccumulation of this metal within the plant's structure. Overall, this study emphasizes the bioaccumulation capacity of S. alterniflora and elucidate the intrinsic connection between different anthropogenic activities and their impact on the resultant availability and bioaccumulation of metals by this salt marsh plant.
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Affiliation(s)
- Laura Lemons Moreira
- Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, 96203-900, Rio Grande, Brasil
| | - Ronan Adler Tavella
- Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, 96203-900, Rio Grande, Brasil
| | - Alicia da Silva Bonifácio
- Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, 96203-900, Rio Grande, Brasil
| | - Rodrigo de Lima Brum
- Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, 96203-900, Rio Grande, Brasil
| | - Livia da Silva Freitas
- Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, 96203-900, Rio Grande, Brasil
| | - Niely Galeão da Rosa Moraes
- Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, 96203-900, Rio Grande, Brasil
| | - Maria Laura Fiasconaro
- Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, 96203-900, Rio Grande, Brasil
- Instituto de Desarrollo Tecnológico para la Industria Química - (CONICET- UNL), Universidad Católica de Santa Fe, Santa Fe, Argentina
| | - Paula Florencio Ramires
- Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, 96203-900, Rio Grande, Brasil
| | - Julia Oliveira Penteado
- Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, 96203-900, Rio Grande, Brasil
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13
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Parker-Jurd FNF, Abbott GD, Guthery B, Parker-Jurd GMC, Thompson RC. Features of the highway road network that generate or retain tyre wear particles. Environ Sci Pollut Res Int 2024:10.1007/s11356-024-32769-1. [PMID: 38451457 DOI: 10.1007/s11356-024-32769-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 02/29/2024] [Indexed: 03/08/2024]
Abstract
The environmental accumulation of microplastics poses a formidable global challenge, with tyre wear particles (TWPs) emerging as major and potentially harmful contributors to this particulate pollution. A critical pathway for TWPs to aquatic environments is via road drainage. While drainage assets are employed worldwide, their effectiveness in retaining microplastics of highly variable densities (TWP ~ 1-2.5 g cm3) remains unknown. This study examines their ability to impede the transfer of TWPs from the UK Strategic Road Network (SRN) to aquatic ecosystems. Samples were collected from the influent, effluent and sediments of three retention ponds and three wetlands. The rate of TWP generation is known to vary in response to vehicle speed and direction. To ascertain the significance of this variability, we further compared the mass of TWPs in drainage from curved and straight sections of the SRN across eight drainage outfalls. Pyrolysis gas chromatography-mass spectrometry (Py-GC-MS) was used to quantify tyre wear using benzothiazole as a molecular marker for TWPs (with an internal standard benzothiazole-D4). Tyre wear was present in drainage from the SRN at concentrations of 2.86 ± 6 mg/L and was found within every sample analysed. Drainage from curved sections of the SRN contained on average a 40% greater TWP mass than straight sections but this was not significant. The presence of wetlands and retention ponds generally led to a reduction in TWP mass (74.9% ± 8.2). This effect was significant for retention ponds but not for wetlands; most probably due to variability among sites and sampling occasions. Similar drainage assets are used on a global scale; hence our results are of broad relevance to the management of TWP pollution.
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Affiliation(s)
- Florence N F Parker-Jurd
- School of Biological and Marine Sciences, University of Plymouth, Drakes Circus, Plymouth, PL4 8AA, UK.
| | - Geoffrey D Abbott
- School of Natural and Environmental Sciences, Drummond Building, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK
| | - Bill Guthery
- School of Natural and Environmental Sciences, Drummond Building, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK
| | - Gustav M C Parker-Jurd
- School of Biological and Marine Sciences, University of Plymouth, Drakes Circus, Plymouth, PL4 8AA, UK
| | - Richard C Thompson
- School of Biological and Marine Sciences, University of Plymouth, Drakes Circus, Plymouth, PL4 8AA, UK
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14
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Gillespie J, Hamilton R, Penny D. Letting the plants speak: Law, landscape and conservation. Ambio 2024; 53:470-481. [PMID: 38064113 PMCID: PMC10837398 DOI: 10.1007/s13280-023-01957-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 02/03/2024]
Abstract
The Botany Wetlands are the contemporary remnant of a formerly extensive coastal freshwater wetland in the inner-urban suburbs of Sydney (Australia). This site supports a range of ecosystem services, including human physical and mental health benefits, filtration of stormwater runoff from a highly urban and industrial catchment, and accommodation space for floodwater. The wetlands also provide habitat to migratory water birds and act as a connective habitat corridor and refuge for native flora and fauna including endangered ecological communities recognised in state and national legislation. Current management strategies and 'on the ground' practices are informed by a hierarchy of laws and management plans that act to create and reinforce a specific narrative in the material landscape. Here we consider the ecological history of the wetlands, derived from paleoecological data, in the context of this complex network of governance entanglements. We argue that the system bears little resemblance to its long-term character and has been made and continually re-made by a portmanteau of inflexible regulatory structures. We suggest that maintaining ecosystem services in such a complex, hybridized sociolegal-biophysical system requires a critical view of both the power relations and physical processes that shape it.
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Affiliation(s)
- Jo Gillespie
- School of Geosciences, The University of Sydney, Camperdown, NSW, 2006, Australia.
| | - Rebecca Hamilton
- School of Geosciences, The University of Sydney, Camperdown, NSW, 2006, Australia
| | - Dan Penny
- School of Geosciences, The University of Sydney, Camperdown, NSW, 2006, Australia
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15
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Dong L, Wang X, Tong H, Lv Y, Chen M, Li J, Liu C. Distribution and correlation of iron oxidizers and carbon-fixing microbial communities in natural wetlands. Sci Total Environ 2024; 912:168719. [PMID: 38040374 DOI: 10.1016/j.scitotenv.2023.168719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 12/03/2023]
Abstract
Most microaerophilic Fe(II)-oxidizing bacteria (mFeOB) belonging to the family Gallionellaceae are autotrophic microorganisms that can use inorganic carbon to drive carbon sequestration in wetlands. However, the relationship between microorganisms involved in Fe and C cycling is not well understood. Here, soil samples were collected from different wetlands to explore the distribution and correlation of Gallionella-related mFeOB and carbon-fixing microorganisms containing cbbL and cbbM genes. A significant positive correlation was found between the abundances of mFeOB and the cbbL gene, as well as a highly significant positive correlation between the abundances of mFeOB and the cbbM gene, indicating the distribution of mFeOB in co-occurrence with carbon-fixing microorganisms in wetlands. The mFeOB were mainly dominated by Sideroxydans lithotrophicus ES-1 and Gallionella capsiferriformans ES-2 in all wetland soils. The structures of the carbon-fixing microbial communities were similar in these wetlands, mainly consisting of Alphaproteobacteria, Betaproteobacteria, and Gammaproteobacteria. The extractable Fe(II) concentrations affected the community composition of mFeOB, resulting in a significant difference in the relative abundances of the dominant FeOB. The main factors affecting cbbL-related microbial communities were dissolved inorganic carbon and oxygen, soil redox potential, and sodium acetate-extracted Fe(II). The composition of cbbM-related microbial communities was mainly affected by acetate-extracted Fe(II) and soil redox potential. In addition, the positive correlation between these functional microorganisms suggests that they play a synergistic role in Fe(II) oxidation and carbon fixation in wetland soil ecosystems. Our results suggest a cryptic relationship between mFeOB and carbon-fixing microorganisms in wetlands and that the microbial community structure can be effectively altered by regulating their physicochemical properties, thus affecting the capacity of carbon sequestration.
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Affiliation(s)
- Leheng Dong
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Xugang Wang
- College of Agriculture/Tree Peony, Henan University of Science and Technology, Luoyang 471023, China
| | - Hui Tong
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China.
| | - Yahui Lv
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Manjia Chen
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Jiahui Li
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Chengshuai Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
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Yimer EA, De Trift L, Lobkowicz I, Villani L, Nossent J, van Griensven A. The underexposed nature-based solutions: A critical state-of-art review on drought mitigation. J Environ Manage 2024; 352:119903. [PMID: 38211427 DOI: 10.1016/j.jenvman.2023.119903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 10/03/2023] [Accepted: 12/11/2023] [Indexed: 01/13/2024]
Abstract
Droughts are the most expensive climate disasters as they leave long-term and chronic impacts on the ecosystem, agriculture, and human society. The intensity, frequency, and duration of drought events have increased over the years and are expected to worsen in the future on a regional and planetary/global scale. Nature-based solutions (NBS) such as wetland and floodplain restorations, green infrastructures, rainwater harvesting, etc., are highlighted as effective solutions to cope with the future impacts of these events. While the role of NBS in coping with the impacts of other disasters, such as floods, has been extensively studied, there has been a lack of comprehensive review of NBS targeting drought. The following paper provides a unique critical state-of-the-art literature review of individual drought-related NBS around the world, in Europe, and particularly in Belgium, and assesses the critical differences between the NBS applied globally and in Flanders. An extensive literature review was conducted to systematically analyze NBS, listing the type, the location, the status of the implementation, and the possible recommendations proposed to optimize future NBS applications. Finally, a comparison is made between small- and large-scale applications of NBS. By analyzing all these aspects, especially the level of effectiveness and recommendations, insight was gained into the future potential of NBS and possible improvements. The research indicated a lack of scientific publications, especially in Belgium. Hence, grey literature was also included in the literature review. Only four papers included a quantitative assessment regarding the effectiveness of drought on a global level, all stating a positive impact on groundwater recharge. In contrast, at regional and country levels, the performance of NBS was not quantified. The number of large-scale implementations is low, where landscape- or watershed-scale holistic approaches to drought mitigation are still scarce. Some successfully implemented projects are only very local and have a long realization time, two aspects that limit achieving visible impact at a larger scale. Among the many NBS, wetlands are recognized as highly effective in coping with drought but are still degraded or lost despite their significant restoration potential. A common effectiveness evaluation framework shall be followed, which gives policymakers a clear view of the different NBS investment options. Furthermore, a more collaborative approach is recommended globally, including different stakeholder groups, with specific attention to the local communities. To conclude, future research should increase the evidence base and implementation of drought-mitigating NBS.
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Affiliation(s)
- Estifanos Addisu Yimer
- Department of Hydrology and Hydraulic Engineering, Vrije University of Brussels, 1050 Brussels, Belgium.
| | - Lien De Trift
- Department of Hydrology and Hydraulic Engineering, Vrije University of Brussels, 1050 Brussels, Belgium
| | - Ida Lobkowicz
- Department of Biology, University of Antwerp, Antwerpen, Belgium
| | - Lorenzo Villani
- Department of Hydrology and Hydraulic Engineering, Vrije University of Brussels, 1050 Brussels, Belgium; Department of Agriculture, Food, Environment and Forestry (DAGRI), Università Degli Studi di Firenze, Italy
| | - Jiri Nossent
- Department of Hydrology and Hydraulic Engineering, Vrije University of Brussels, 1050 Brussels, Belgium; Flanders Hydraulics Research, Department of Mobility and Public Works, Berchemlei 115, 2140 Antwerp, Belgium
| | - Ann van Griensven
- Department of Hydrology and Hydraulic Engineering, Vrije University of Brussels, 1050 Brussels, Belgium; Department of Water Science and Engineering, IHE Delft Institute for Water Education, 2700 Delft, the Netherlands
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Teglia CM, Hadad HR, Uberti-Manassero N, Siano ÁS, Repetti MR, Goicoechea HC, Culzoni MJ, Maine MA. Removal of enrofloxacin using Eichhornia crassipes in microcosm wetlands. Environ Sci Pollut Res Int 2024; 31:14845-14857. [PMID: 38285256 DOI: 10.1007/s11356-024-32146-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 01/18/2024] [Indexed: 01/30/2024]
Abstract
The global consumption of antibiotics leads to their possible occurrence in the environment. In this context, nature-based solutions (NBS) can be used to sustainably manage and restore natural and modified ecosystems. In this work, we studied the efficiency of the NBS free-water surface wetlands (FWSWs) using Eichhornia crassipes in microcosm for enrofloxacin removal. We also explored the behavior of enrofloxacin in the system, its accumulation and distribution in plant tissues, the detoxification mechanisms, and the possible effects on plant growth. Enrofloxacin was initially taken up by E. crassipes (first 100 h). Notably, it accumulated in the sediment at the end of the experimental time. Removal rates above 94% were obtained in systems with sediment and sediment + E. crassipes. In addition, enrofloxacin was found in leaves, petioles, and roots (8.8-23.6 µg, 11-78.3 µg, and 10.2-70.7 µg, respectively). Furthermore, enrofloxacin, the main degradation product (ciprofloxacin), and other degradation products were quantified in the tissues and chlorosis was observed on days 5 and 9. Finally, the degradation products of enrofloxacin were analyzed, and four possible metabolic pathways of enrofloxacin in E. crassipes were described.
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Affiliation(s)
- Carla M Teglia
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
| | - Hernán R Hadad
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Laboratorio de Química Analítica Ambiental, Instituto de Química Aplicada del Litoral (IQAL, CONICET-UNL), Facultad de Ingeniería Química, Universidad Nacional del Litoral (UNL), Santiago del Estero 2829, 3000, Santa Fe, Argentina
| | - Nora Uberti-Manassero
- Cátedra de Biología Molecular, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Kreder 2805, Esperanza, Santa Fe, Argentina
| | - Álvaro S Siano
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Laboratorio de Péptidos Bioactivos (LPB), Departamento de Química Orgánica, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina
| | - María R Repetti
- Facultad de Ingeniería Química, Programa de Investigación y Análisis de Residuos y Contaminantes Químicos, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Héctor C Goicoechea
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - María J Culzoni
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - María A Maine
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Laboratorio de Química Analítica Ambiental, Instituto de Química Aplicada del Litoral (IQAL, CONICET-UNL), Facultad de Ingeniería Química, Universidad Nacional del Litoral (UNL), Santiago del Estero 2829, 3000, Santa Fe, Argentina
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18
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Backhaus PJ, Wardrop DH, McCarty GW, Brooks RP. Developmental framework for a desktop hydrogeomorphic wetland functional assessment derived from field-based data. Environ Monit Assess 2024; 196:217. [PMID: 38286914 PMCID: PMC10824798 DOI: 10.1007/s10661-024-12373-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 01/15/2024] [Indexed: 01/31/2024]
Abstract
With loss of wetlands and their associated ecosystem services within landscapes, it is imperative to be able to understand the change in ecological functions underlying these services. Field-based functional assessments can produce a range of specific scores among a robust set of functions but are time and cost prohibitive as the number of wetlands assessed increases. Remote-based functional assessments are an alternative for broad scale assessments, but trade-off cost for limitations in scoring and functional assemblage. To address these concerns, we created a framework for the development of the Hydrogeomorphic Remote Assessment of Wetland Function (HGM-RAWF). Rooted in the hydrogeomorphic approach of an existing field-based functional assessment and its underlying models, this remote functional assessment substitutes field-based assessment methods with remotely assessed proxies. As potential remote proxies were determined through literature review and statistically screened for use in the remote assessment, a field-based reference wetland database of 222 freshwater wetlands in the Mid-Atlantic Region provided a baseline by which remote data could be compared and calibrated. The resulting HGM-RAWF protocol remotely assesses seven hydrology and biogeochemistry functions in the Mid-Atlantic with assessment scores similar to its field-based counterparts. With noted limitations, the HGM-RAWF framework provides the means to create desktop functional assessments across broad geographic scales with the diversity and specificity of field-based assessments at the reduced costs associated with remote assessments. Its basis in the HGM approach and use of public spatial datasets allows the framework to be adopted regionally and can be used as a model for national wetland functional assessment.
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Affiliation(s)
- Peter J Backhaus
- Riparia, Department of Geography, Pennsylvania State University, 302 Walker Building, University Park, State College, PA, 16802, USA.
| | - Denice H Wardrop
- Riparia, Department of Geography, Pennsylvania State University, 302 Walker Building, University Park, State College, PA, 16802, USA
- Chesapeake Research Consortium, Riparia, Department of Geography, Pennsylvania State University, 302 Walker Building University Park, State College, PA, 16802, USA
| | - Gregory W McCarty
- Hydrology and Remote Sensing Laboratory, USDA Agricultural Research Service (ARS), 10300 Baltimore Avenue, Beltsville, MD, 20705, USA
| | - Robert P Brooks
- Riparia, Department of Geography, Pennsylvania State University, 302 Walker Building, University Park, State College, PA, 16802, USA
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19
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Iqbal A, Maqsood Ur Rehman M, Sajjad W, Degen AA, Rafiq M, Jiahuan N, Khan S, Shang Z. Patterns of bacterial communities in the rhizosphere and rhizoplane of alpine wet meadows. Environ Res 2024; 241:117672. [PMID: 37980986 DOI: 10.1016/j.envres.2023.117672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/18/2023] [Accepted: 11/13/2023] [Indexed: 11/21/2023]
Abstract
Wet meadows, a type of wetland, are vulnerable to climate change and human activity, impacting soil properties and microorganisms that are crucial to the ecosystem processes of wet meadows. To decipher the ecological mechanisms and processes involved in wet meadows, it is necessary to examine the bacterial communities associated with plant roots. To gain valuable insight into the microbial dynamics of alpine wet meadows, we used Illumina MiSeq sequencing to investigate how environmental factors shape the bacterial communities thriving in the rhizosphere and rhizoplane of three plant species: Cremanthodium ellisii, Caltha scaposa, and Cremanthodium lineare. The most abundant bacterial phyla in rhizosphere and rhizoplane were Proteobacteria > Firmicutes > Actinobacteria, while Macrococcus, Lactococcus, and Exiguobacterium were the most abundant bacterial genera between rhizosphere and rhizoplane. The mantel test, network, and structure equation models revealed that bacterial communities of rhizosphere were shaped by total nitrogen (TN), soil water content (SWC), soil organic carbon (SOC), microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), pH, however, rhizoplane bacterial communities exhibited varying results. The bacterial communities exhibited significant heterogeneity, with stochastic process predominating in both the rhizosphere and rhizoplane. PICRUSt2 and FAPROTAX analysis revealed substantial differences in key biogeochemical cycles and metabolic functional predictions. It was concluded that root compartments significantly influenced the bacterial communities, although plant species and elevation asserted varying effects. This study portrays how physicochemical properties, plant species, and elevations can shift the overall structure and functional repertoire of bacterial communities in alpine wet meadows.
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Affiliation(s)
- Awais Iqbal
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Muhammad Maqsood Ur Rehman
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Wasim Sajjad
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Abraham Allan Degen
- Desert Animal Adaptations and Husbandry, Wyler Department of Dryland Agriculture, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer Sheva, 8410500, Israel
| | - Muhammad Rafiq
- Department of Microbiology, Faculty of Life Sciences and Informatics, Baluchistan University of IT, Engineering and Management Sciences, Quetta, Pakistan
| | - Niu Jiahuan
- Department of Health and Environmental Sciences, Xian Jiaotong-Liverpool University, Suzhou, 215123, China
| | - Salman Khan
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Zhanhuan Shang
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China.
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20
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Xing S, Shen Q, Ji C, You L, Li J, Wang M, Yang G, Hao Z, Zhang X, Chen B. Arbuscular mycorrhizal symbiosis alleviates arsenic phytotoxicity in flooded Iris tectorum Maxim. dependent on arsenic exposure levels. Environ Pollut 2024; 340:122841. [PMID: 37940019 DOI: 10.1016/j.envpol.2023.122841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/05/2023] [Accepted: 10/29/2023] [Indexed: 11/10/2023]
Abstract
Arsenic (As) pollution in wetlands has emerged as a serious global concern, posing potential threat to the growth of wetland plants. Arbuscular mycorrhizal fungi (AMF) can alleviate As phytotoxicity to host plants, but their ecological functions in wetland plants under flooding conditions remain largely unknown. Thus, a pot experiment was conducted using Rhizophagus irregularis and Iris tectorum Maxim. exposed to light (15 and 30 mg/kg As) and high (75 and 100 mg/kg As) levels of As, to investigate the intrinsic mechanisms underlying the effects of mycorrhizal inoculation on plant As tolerance under flooding conditions. The mycorrhizal colonization rates ranged from 31.47 ± 3.92 % to 60.69 ± 5.58 %, which were higher than the colonization rate (29.55 ± 13.60%) before flooding. AMF significantly increased biomass of I. tectorum under light As levels, together with increased phosphorus (P) and As uptake. Moreover, expression of arsenate reductase gene RiarsC and a trace of dimethylarsenic (1.87 mg/kg in shoots) were detected in mycorrhizal plants, suggesting As transformation and detoxification by AMF exposed to light levels of As. However, under high As levels, AMF inhibited As translocation from roots to shoots, and facilitated the formation of iron plaque. The immobilized As concentrations in iron plaque of mycorrhizal plants were respectively 1133.68 ± 179.17 mg/kg and 869.11 ± 248.90 mg/kg at 75 and 100 mg/kg As addition level, both significantly higher than that in non-inoculated plants. Irrespective of As exposure levels, mycorrhizal symbiosis decreased soil As bioavailability. Overall, the study provides insights into the alleviation of As phytotoxicity in natural wetland plants through mycorrhizal symbiosis, and potentially indicates function diversity of AMF under flooding conditions and As stress, supporting the subsequent phytoremediation and restoration of As-contaminated wetlands.
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Affiliation(s)
- Shuping Xing
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qihui Shen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chuning Ji
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; China University of Mining and Technology, Xuzhou, 221116, China
| | - Luhua You
- NUS Environmental Research Institute, National University of Singapore, Singapore
| | - Jinglong Li
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Meng Wang
- School of Earth Sciences and Resources, China University of Geosciences, Beijing, 100083, China
| | - Guang Yang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Zhipeng Hao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Xin Zhang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Baodong Chen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
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21
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Knorr S, Weisener CG, Phillips LA. The role of agricultural drainage, storm-events, and natural filtration on the biogeochemical cycling capacity of aquatic and sediment environments in Lake Erie's drainage basin. Sci Total Environ 2023; 905:167102. [PMID: 37717759 DOI: 10.1016/j.scitotenv.2023.167102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 09/19/2023]
Abstract
Lake Erie is the most at risk of the Great Lakes for degraded water quality due to non-point source pollution caused by agricultural activities in the lake's watershed. The extent and temporal patterns of nutrient loading from these agricultural activities is influenced by the timing of agronomic events, precipitation events, and water flow through areas of natural filtration within the watershed. Downstream impacts of these nutrient loading events may be moderated by the co-loading of functionally relevant biogeochemical cycling microbial communities from agricultural soils. This study quantified loading patterns of these communities from tile drain sources, assessed whether functional communities from agricultural sources influenced downstream microbial functionality, and investigated how distance from agricultural sources, storm events, and areas of natural filtration altered nutrient cycling and nutrient fluxes in aquatic and sediment environments. Water and sediment samples were collected in the Wigle Creek watershed in Ontario, from tile drains through to Lake Erie, from May to November 2021, and microbial nitrogen (N) and phosphorous (P) cycling capacity (quantitative PCR), and nutrient levels were evaluated. Results showed that N and P functional groups were co-loaded with nutrients, with increased loading occurring during storm events and during agricultural activities including fertilization and harvest. Overall functional capacity in the aquatic environment decreased with distance from the agricultural sources and as water transited through natural filtration areas. In contrast, the sediment environment was more resilient to both agricultural disturbances and abiotic factors. This study expands our understanding of when and where different stages of N and P cycling occurs in agriculturally impacted watersheds, and identifies both seasons and regions to target with nutrient mitigation strategies.
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Affiliation(s)
- S Knorr
- Agriculture and Agri-Food Canada, Harrow Research and Development Centre, Harrow, ON N0R 1G0, Canada; Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada
| | - C G Weisener
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada
| | - L A Phillips
- Agriculture and Agri-Food Canada, Harrow Research and Development Centre, Harrow, ON N0R 1G0, Canada.
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22
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Sánchez-García EA, Yañez-Arenas C, Lindig-Cisneros R, Lira-Noriega A, Monroy Ibarra R, Moreno-Casasola P. The expected impacts of sea level on the Mexican Atlantic coast. Sci Total Environ 2023; 903:166317. [PMID: 37591386 DOI: 10.1016/j.scitotenv.2023.166317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/12/2023] [Accepted: 08/12/2023] [Indexed: 08/19/2023]
Abstract
The Mexican Atlantic coast is vulnerable to sea level rise due to its low, sandy shorelines with extensive adjacent wetlands. The increasing trends at the regional level are similar to global trends (~3 ± 0.04 mm/year): between 1.8 mm/year in Alvarado, Veracruz, to 3.6 mm/year in Isla Mujeres, Quintana Roo. A synthetic model was applied to Mexican Atlantic coast under two sea level rise scenarios for the year 2100. Our objectives were: 1) to identify potentially floodable zones in the face of a sea level rise of one and two meters on the Mexican Atlantic coast with a synthetic model using SRTM and LiDAR topographic data; 2) to determine vegetation and land use affected in the potentially floodable zones; and 3) quantify the vulnerable human population. With topographic data we identified low areas (one and two meters) to assess potentially floodable zones; these were intersected with data layers of vegetation, land use, and human population. Deltaic zones, coastal lagoons and low-lying areas of the Yucatan Peninsula were regions with the largest potentially floodable surface. In the one-meter sea rise scenario, 581,674 ha were identified as potentially floodable, and 896,151 in the two-meter scenario. The most vulnerable vegetation and land use types were wetlands, such as cattail marshes (tulares; ~29 %) and mangroves (~27 %), as well as cultivated grasslands (~6 %). The indirectly affected coastal population could be approximately 5.5 million in these scenarios (~33 %), and the directly affected population could range between 124,000 and 440,000 (~0.72 and 2.55 %, respectively). These results indicate that there will be strong effects in economic, social, and environmental impacts on the Atlantic coast of Mexico in the event of a one- and two-meters sea level rise. This type of work will enable proposal conservation and adaptation strategies for human populations and coastal cities.
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Affiliation(s)
- Edgar Abel Sánchez-García
- Red de Ecología Funcional, Instituto de Ecología, A.C., Carretera antigua a Coatepec 351, El Haya C. P. 91073, Xalapa, Veracruz, Mexico.
| | - Carlos Yañez-Arenas
- Laboratorio de Ecología Geográfica - Unidad de Biología de la Conservación, Unidad Académica Sisal - Facultad de Ciencias, Universidad Nacional Autónoma de México, Parque Científico Chuburná, Yucatán, Mexico.
| | - Roberto Lindig-Cisneros
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, antigua Carretera a Pátzcuaro 8701, CP. 58190, Morelia, Michoacán, Mexico.
| | - Andrés Lira-Noriega
- CONAHCYT Research Fellow, Red de Estudios Moleculares Avanzados, Instituto de Ecología, A.C., Carretera antigua a Coatepec 351, El Haya C. P. 91073, Xalapa, Veracruz, Mexico.
| | - Roberto Monroy Ibarra
- Red de Ecología Funcional, Instituto de Ecología, A.C., Carretera antigua a Coatepec 351, El Haya C. P. 91073, Xalapa, Veracruz, Mexico.
| | - Patricia Moreno-Casasola
- Red de Ecología Funcional, Instituto de Ecología, A.C., Carretera antigua a Coatepec 351, El Haya C. P. 91073, Xalapa, Veracruz, Mexico.
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23
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Wang Z, Liu K. Nutrients transport behavior in inlet river in the Yellow River Delta in winter. Mar Pollut Bull 2023; 197:115815. [PMID: 37984090 DOI: 10.1016/j.marpolbul.2023.115815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/12/2023] [Accepted: 11/15/2023] [Indexed: 11/22/2023]
Abstract
The nutrients such as dissolved inorganic nitrogen (DIN, NH4+-N, NO2--N, and NO3--N), dissolved inorganic phosphorus (DIP, PO43-) and dissolved SiO2 (DSi) funneled by the inlet river are the dominant factors to coastal eutrophication. This study investigated nutrient transport process in typical inlet rivers in the Yellow River Delta. The indicator of coastal eutrophication potential and concentration ratio between upstream and downstream stations were used to evaluate the influence of different sources to the nutrient risks. It showed that urban areas are the most important source of the nutrients in studied rivers. The harbor and mariculture would have greater risk because of their proximity close to the coastal area. Wetland was a vital conversion to eliminate the river nutrients, and the retention could reach 80 %. It is imperative to protect and construct wetlands to reduce the nutrient pollution in the inlet river.
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Affiliation(s)
- Zhaohua Wang
- First Institute of Oceanography, MNR, Qingdao 266061, China
| | - Kai Liu
- Dongying Marine Development Research Institute, Dongying 257091, China.
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24
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Elhaj Baddar Z, Xu X, Spencer B. Spatiotemporal Changes in Trace Metal Bioavailability in the Sediment Pore water of a Constructed Wetland Using Passive Pore water Samplers. Environ Toxicol Chem 2023; 42:2726-2736. [PMID: 37671844 DOI: 10.1002/etc.5745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/13/2023] [Accepted: 09/01/2023] [Indexed: 09/07/2023]
Abstract
Sediments in aquatic systems often act as a major sink for contaminants. Diffusive gradient in thin films (DGTs) and in situ equilibrium dialysis samplers (peepers) are two major in situ pore water sampling devices that overcome the problems associated with conventional pore water sampling methods. In the present study, DGTs and peepers were used to study the spatial and seasonal effects (cool months, October-February; warm months, May-September) on metal bioavailability in the H-02 constructed wetland and the sink versus source role of the sediments by calculating the metal resupply capacity. Data showed similar seasonal trends in metal concentrations using passive samplers, peepers, and DGTs. Pooled Cu and Zn concentrations measured using DGTs were lower in warm months (1.67 ± 1.50 and 2.62 ± 0.68 μg L-1 , respectively, p < 0.001) versus in cool months (2.12 ± 0.65 and 5.58 ± 1.33 μg L-1 , respectively, p < 0.001; mean ± 95% confidence interval). Sulfate (SO4 2- ) concentrations were significantly (p = 0.0139) lower in warm months (averaged at 0.22 ± 0.05 mg L-1 ) compared to in cool months (0.16 ± 0.05 mg L-1 ). The increase in SO4 2- concentration is an indicator of the lower activity of sulfate-reducing bacteria, which need SO4 2- during anaerobic respiration, in which SO4 2- is reduced to sulfide (S2- ) that forms insoluble salts with Cu and Zn, which could partially explain the higher bioavailability of these metals in the cool season. Metal resupply capacity of the sediments was mostly <0.2 for Cu and Zn. Taken together, the H0-2 wetland sediments mostly acted as a sink to both Cu and Zn over the course of the present study. Environ Toxicol Chem 2023;42:2726-2736. © 2023 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Zeinah Elhaj Baddar
- Savannah River Ecology Lab, University of Georgia, Aiken, South Carolina, USA
| | - Xiaoyu Xu
- Savannah River Ecology Lab, University of Georgia, Aiken, South Carolina, USA
- Warnell School of Forestry and Natural Resources, University of Georgia, Aiken, South Carolina, USA
| | - Breann Spencer
- Savannah River Ecology Lab, University of Georgia, Aiken, South Carolina, USA
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25
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Cano-Povedano J, López-Calderón C, Sánchez MI, Hortas F, Cañuelo-Jurado B, Martín-Vélez V, Ros M, Cózar A, Green AJ. Biovectoring of plastic by white storks from a landfill to a complex of salt ponds and marshes. Mar Pollut Bull 2023; 197:115773. [PMID: 37992543 DOI: 10.1016/j.marpolbul.2023.115773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/06/2023] [Accepted: 11/09/2023] [Indexed: 11/24/2023]
Abstract
Research into plastic pollution has extensively focused on abiotic vectors, overlooking transport by animals. Opportunistic birds, such as white storks (Ciconia ciconia) often forage on landfills, where plastic abounds. We assess plastic loading by ingestion and regurgitation of landfill plastic in Cadiz Bay, a major stopover area for migratory white storks in south-west Spain. On average, we counted 599 storks per day moving between a landfill and a complex of salt ponds and marshes, where they regurgitated pellets that each contained a mean of 0.47 g of plastic debris, dominated by polyethylene. Modelling reliant on GPS tracking estimated that 99 kg and >2 million particles of plastic were biovectored into the wetland during 2022, with seasonal peaks that followed migration patterns. GPS data enabled the correction of field censuses and the identification of plastic deposition hotspots. This study highlights the important role that biovectoring plays in plastic transport into coastal wetlands.
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Affiliation(s)
- Julián Cano-Povedano
- Department of Conservation Biology and Global Change, Estación Biológica de Doñana CSIC, Américo Vespucio 26, 41092 Sevilla, Spain.
| | - Cosme López-Calderón
- Department of Conservation Biology and Global Change, Estación Biológica de Doñana CSIC, Américo Vespucio 26, 41092 Sevilla, Spain
| | - Marta I Sánchez
- Department of Conservation Biology and Global Change, Estación Biológica de Doñana CSIC, Américo Vespucio 26, 41092 Sevilla, Spain
| | - Francisco Hortas
- Department of Biology, Institute of Marine Research (INMAR), University of Cadiz and European University of the Seas (SEA-EU), 11510 Puerto Real, Spain
| | - Belén Cañuelo-Jurado
- Department of Conservation Biology and Global Change, Estación Biológica de Doñana CSIC, Américo Vespucio 26, 41092 Sevilla, Spain
| | - Víctor Martín-Vélez
- Department of Conservation Biology and Global Change, Estación Biológica de Doñana CSIC, Américo Vespucio 26, 41092 Sevilla, Spain; Departamento de Ciencias de la Vida, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
| | - Macarena Ros
- Departamento de Zoología, Facultad de Biología, Universidad de Sevilla, Av. Reina Mercedes 6, 41012 Sevilla, Spain
| | - Andrés Cózar
- Department of Biology, Institute of Marine Research (INMAR), University of Cadiz and European University of the Seas (SEA-EU), 11510 Puerto Real, Spain
| | - Andy J Green
- Department of Conservation Biology and Global Change, Estación Biológica de Doñana CSIC, Américo Vespucio 26, 41092 Sevilla, Spain
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26
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Carvalho CR, Souza BCE, Bieluczyk W, Feitosa YB, Delbaje E, Camargo PB, Tsai SM, Fiore MF. Phosphonate consumers potentially contributing to methane production in Brazilian soda lakes. Extremophiles 2023; 28:4. [PMID: 37987855 DOI: 10.1007/s00792-023-01318-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 09/26/2023] [Indexed: 11/22/2023]
Abstract
Oxic methane production (OMP) has been reported to significantly contribute to methane emissions from oxic surface waters. Demethylation of organic compounds, photosynthesis-associated methane production, and (bacterio)chlorophyll reduction activity are some of the investigated mechanisms as potential OMP sources related to photosynthetic organisms. Recently, cyanobacteria have often been correlated with methane accumulation and emission in freshwater, marine, and saline systems. The Brazilian Pantanal is the world's largest wetland system, with approximately 10,000 shallow lakes, most of which are highly alkaline and saline extreme environments. We initiated this study with an overall investigation using genetic markers, from which we explored metagenomic and limnological data from the Pantanal soda for five potential OMP pathways. Our results showed a strong positive correlation between dissolved methane concentrations and bloom events. Metagenomic data and nutrients, mainly orthophosphate, nitrogen, iron, and methane concentrations, suggest that the organic phosphorous demethylation pathway has the most potential to drive OMP in lakes with blooms. A specialized bacterial community was identified, including the Cyanobacteria Raphidiopsis, although the bloom does not contain the genes to carry out this process. These data showed enough evidence to infer the occurrence of an OMP pathway at Pantanal soda lakes, including the microbial sources and their relation to the cyanobacterial blooms.
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Affiliation(s)
- C R Carvalho
- College of Agriculture 'Luiz de Queiroz', University of São Paulo, Piracicaba, São Paulo, Brazil
- Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
| | - B C E Souza
- Department of Biological Sciences, State University of Feira de Santana, Feira de Santana, Bahia, Brazil
| | - W Bieluczyk
- Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
| | - Y B Feitosa
- Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
| | - E Delbaje
- Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
| | - P B Camargo
- Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
| | - S M Tsai
- Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
| | - Marli F Fiore
- Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil.
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Xavier MLM, Janzen JG, Nepf H. Modeling mass removal and sediment deposition in stormwater ponds using floating treatment islands: a computational approach. Environ Sci Pollut Res Int 2023; 30:112173-112183. [PMID: 37831256 DOI: 10.1007/s11356-023-30218-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/27/2023] [Indexed: 10/14/2023]
Abstract
Floating treatment islands (FTIs) offer effective solutions for stormwater management, providing flood attenuation and pollutant removal capabilities. However, there remains a knowledge gap concerning their performance, specifically in terms of pollutant removal and sediment deposition. To address this gap, the present study employs computational fluid dynamics (CFD) modeling to investigate the intricate interactions within FTI systems. Various FTI configurations are analyzed, considering mass removal through FTIs and sediment deposition, the first time where these two processes were considered together in a CFD environment. The findings demonstrate that FTIs have a significant influence on flow patterns and mass removal. Notably, FTIs enhance mass removal compared to the control case, with larger sediment particles exhibiting higher removal rates. The correlation between the short-circuit index and sedimentation in FTI ponds highlights the potential of FTIs as indicators of treatment efficiency. Furthermore, the study focuses on mass removal exclusively through the FTI root zones. The positioning of FTIs within the pond has a considerable impact, resulting in differences of up to 20% in mass removal. Moreover, the FTI configuration exerts a more pronounced influence on mass removal through FTIs than through sediment deposition alone. In cases where both processes occur simultaneously, the presence of FTIs lead to higher mass removal, primarily attributed to the FTIs themselves, particularly in the initial segment. Remarkably, certain FTI configurations enable mass removal exceeding 70% for large sediment particles, even with a pond length less than half of the original.
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Affiliation(s)
| | | | - Heidi Nepf
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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28
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Cornish CM, Bergholz P, Schmidt K, Sweetman J. How Benthic Sediment Microbial Communities Respond to Glyphosate and Its Metabolite: a Microcosm Experiment. Microb Ecol 2023; 86:2949-2958. [PMID: 37674014 DOI: 10.1007/s00248-023-02296-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023]
Abstract
Glyphosate is the most commonly used agricultural herbicide in the world. In aquatic ecosystems, glyphosate often adsorbs to benthic substrates or is metabolized and degraded by microorganisms. The effects of glyphosate on microbial communities vary widely as microorganisms respond differently to exposure. To help understand the impacts of glyphosate on the sediment microbiome, we conducted a microcosm experiment examining the responses of benthic sediment microbial communities to herbicide treatments. Sediments from a prairie pothole wetland were collected, and 16S rRNA gene sequencing was used to analyze community composition 2-h and 14-days after a single treatment of low (0.07 ppm), medium (0.7 ppm), or high (7 ppm) glyphosate, aminomethylphosphonic acid (glyphosate metabolite), or a glyphosate-based commercial formula. We found no significant differences in microbial community composition across treatments, concentration levels, or day of sampling. These findings suggest that microbial species in the Prairie Pothole Region of North America may be tolerant to glyphosate exposure.
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Affiliation(s)
- Christine M Cornish
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58105, USA.
| | - Peter Bergholz
- Department of Microbiological Sciences, North Dakota State University, Fargo, ND, 58105, USA
- Institute for Quantitative Health Sciences & Engineering, Department of Microbiology & Molecular Genetics, Michigan State University, East Lansing, MI, 48823, USA
| | - Kaycie Schmidt
- Department of Microbiological Sciences, North Dakota State University, Fargo, ND, 58105, USA
| | - Jon Sweetman
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58105, USA
- Department of Ecosystem Science and Management, The Pennsylvania State University, University Park, PA, 16802, USA
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29
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Toman V, Skaloš J, Özman KO. Analysis of long-term spatio-temporal wetland change reveals the complex nature of habitat alterations - A case study from the Czech Republic 1842-2017. Sci Total Environ 2023; 894:164769. [PMID: 37301404 DOI: 10.1016/j.scitotenv.2023.164769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/12/2023]
Abstract
Wetlands fulfil a number of functions in the landscape, especially non-productive ones. Information on landscape and biotope changes is important not only from a theoretical point of view for understanding the forces and pressures that cause changes in the landscape, but also from a practical point of view, as we can take inspiration from history when planning the landscape. The main goal of this study is to analyse the dynamics and trajectories of changes in wetlands, including testing the influence of the main natural conditions (climate, geomorphology) on their changes, for a large area of 141 cadastral territories (1315 km2), which will allow the results to be sufficiently generalized. The results of our study confirmed the global trend of rapid wetland loss, with almost three quarters of wetlands disappearing, mostly on arable land (37 %). The results of the study are of great importance in the field of the ecology of landscapes and wetlands, both in the national and international context, not only because they make it possible to understand the regularities and forces that affect changes in wetlands and landscapes, but also have significance due to the methodology. The specific methodology and procedure are based on the application of advanced GIS functions (Union and Intersect functions) to identify the location and area of individual change dynamics and types of wetland (new, extinct, continuous), using accurate old large-scale maps and aerial photographs. The proposed and tested methodological procedure can generally be used for wetlands in other locations, but also for studying the dynamics of changes and trajectories of other biotopes in the landscape. The greatest potential for using the results of this work in the field of environmental protection is the possibility of using the places of extinct wetlands for their restoration.
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Affiliation(s)
- V Toman
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Suchdol, Czech Republic.
| | - J Skaloš
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Suchdol, Czech Republic.
| | - K O Özman
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Suchdol, Czech Republic.
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30
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Schmitz MH, do Couto EV, Xavier EC, Tomadon LDS, Leal RP, Agostinho AA. Assessing the role of protected areas in the land-use change dynamics of a biodiversity hotspot. Ambio 2023; 52:1603-1617. [PMID: 37261644 PMCID: PMC10460765 DOI: 10.1007/s13280-023-01886-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/27/2023] [Accepted: 05/15/2023] [Indexed: 06/02/2023]
Abstract
Although protected areas (PAs) are designed to safeguard natural ecosystems from anthropic modifications, many PAs worldwide are subjected to numerous human-induced impacts. We evaluated whether the establishment of PAs in the Upper Paraná River floodplain region could reduce anthropic landscape changes and whether there is a difference in protection when using different PA restriction categories. We analyzed the overall landscape dynamics using 30 years of land-use time series data and evaluated the change intensity via a partial land-use intensity analysis. Despite the increasing landscape anthropization, the PAs seemed to relieve the general change process, protecting natural areas mainly from agricultural expansion. Concerning the degree of use restriction, more restricted protection led to less human-induced changes. Finally, accessing PA effectiveness is a multidisciplinary challenge for researchers; however, this knowledge is crucial to avoid misunderstandings or poorly crafted public policies or decisions that may harm the environment.
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Affiliation(s)
- Marcelo Henrique Schmitz
- Departamento de Biologia, Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais - PEA, Universidade Estadual de Maringá, Maringá, Paraná 87020-900 Brazil
| | | | - Erick Caldas Xavier
- Departamento de Biologia, Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais - PEA, Universidade Estadual de Maringá, Maringá, Paraná 87020-900 Brazil
| | - Leonardo da Silva Tomadon
- Departamento de Biologia, Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais - PEA, Universidade Estadual de Maringá, Maringá, Paraná 87020-900 Brazil
| | - Rodrigo Pedro Leal
- Departamento de Biologia, Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais - PEA, Universidade Estadual de Maringá, Maringá, Paraná 87020-900 Brazil
| | - Angelo Antonio Agostinho
- Departamento de Biologia, Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais - PEA, Universidade Estadual de Maringá, Maringá, Paraná 87020-900 Brazil
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Li K, Wang Z, Xiang Q, Zhao X, Ji L, Xin Y, Sun J, Liu C, Shen X, Xu X, Chen Q. Coupling of soil methane emissions at different depths under typical coastal wetland vegetation types. Chemosphere 2023; 338:139505. [PMID: 37454988 DOI: 10.1016/j.chemosphere.2023.139505] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/02/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
As an important source of atmospheric methane, methane emissions from coastal wetlands are affected by many factors. However, the methane emission process and interrelated coupling mechanisms in coastal wetland soils of a variety of environments remain unclear owing to complex interactions between intensified anthropogenic activities and climate change in recent years. In this study, we investigated methane cycling processes and the response mechanisms of environmental and microbial factors in soils at different depths under four typical coastal wetland vegetation types of the Yellow River Delta, China, using laboratory culture and molecular biology techniques. Our results show that methane generation pathways differed among the different soil layers, and that the methane emission process has a special response to soil N compounds (NO3-, NH4+). We found that nitrogen can indirectly affect methane emission by impacting key physicochemical properties (pH, oxidation reduction potential, etc.) and some functional communities (mcrA, ANME-2d, sulfate-reducing bacteria (SRB), narG, nosZII). Methane production processes in shallow soils compete closely with sulfate reduction processes, while methane emissions facilitated in deeper soils due to denitrification processes. We believe that our results provide a reference for future research and wetland management practices that seek to mitigate the global greenhouse effect and climate change.
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Affiliation(s)
- Kun Li
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Zihao Wang
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, PR China
| | - Qingyue Xiang
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Xinkun Zhao
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Linhui Ji
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Yu Xin
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Jingyu Sun
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Chenmiao Liu
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Xiaoyan Shen
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Xiaoya Xu
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China.
| | - Qingfeng Chen
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China.
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Weingarten EA, Jackson CR. Microbial Composition of Freshwater Marsh Sediment Responds more Strongly to Microcosm Seawater Addition than Simulated Nitrate or Phosphate Eutrophication. Microb Ecol 2023; 86:1060-1070. [PMID: 36152034 DOI: 10.1007/s00248-022-02111-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
As sea level rise impacts coastal wetlands, saltmarsh will overtake coastal freshwater marsh in many areas, but changes in the sediment microbiome in response to saltwater intrusion are difficult to predict. Coastal freshwater marsh sediment was exposed to ambient, brackish, and saline conditions as well as to elevated nitrate and phosphate to model the combined stresses of saltwater intrusion and coastal eutrophication. Initially, sediment prokaryotic composition was similar to prior studies of freshwater marsh but diverged over time, reflecting the magnitude of increase in saltwater. There was no observed effect of nutrient amendment, potentially ranking seawater intrusion as a higher-importance compositional driver. Although the previously described loss of methanogenic populations and promotion of sulfate reducers in response to saltwater exposure was observed, taxonomic distribution was not similar to typical meso-polyhaline wetlands. Without colonization by marine taxa, such a community may be short-lived naturally, ultimately equilibrating with more common saltmarsh species. However, the recapitulation of salinity concentration by freshwater sediment microbial composition demonstrates the overwhelming nature of saltwater intrusion relative to other drivers like eutrophication.
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Affiliation(s)
- Eric A Weingarten
- Department of Biology, University of Mississippi, University, MS, 38677, USA.
- Environmental Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, MS, 39180, USA.
| | - Colin R Jackson
- Department of Biology, University of Mississippi, University, MS, 38677, USA
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33
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Andersen LH, Ransborg C, Pertoldi C, Pagh S, Bahrndorff S. Can reintroduction of beavers improve insect biodiversity? J Environ Manage 2023; 337:117719. [PMID: 36948148 DOI: 10.1016/j.jenvman.2023.117719] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/28/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Ecosystem engineering species, such as beavers, may help the restoration of biodiversity. Through the building of dams and lodges and altering the natural hydrology, beavers change the habitat structure and create multiple habitats that facilitate a wide variety of other organisms including terrestrial invertebrate communities. Here we study the effect of beaver reintroduction in Klosterheden in Denmark on biomass of flying invertebrates and diversity of moths. Further, aerial photos were used to assess riparian structure and productivity using the normalized difference vegetation index (NDVI). Our findings show that the presence of beavers affected flying invertebrate biomass, but that this was dependent on time of the year. Further, a strong effect of presence of beavers was found on diversity of moths. The results also show an increase in vegetation productivity and structural heterogeneity at sites with presence of beavers. Overall, our results demonstrate the importance of beavers as important ecosystem engineers that affect invertebrate species composition and abundance, as well as riparian structure and productivity.
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Affiliation(s)
- Line Holm Andersen
- Aalborg University, Department of Chemistry and Bioscience, Fredrik Bajers Vej 7H, Aalborg East, DK-9220, Denmark; Stockholm University, Institute for Ecology, Environment and Plant Sciences, Svante Arrhenius Väg 20 A, 106 91, Stockholm, Sweden.
| | - Christian Ransborg
- Aalborg University, Department of Chemistry and Bioscience, Fredrik Bajers Vej 7H, Aalborg East, DK-9220, Denmark; Aalborg Zoo, Mølleparkvej 63, Aalborg C, DK-9000, Denmark
| | - Cino Pertoldi
- Aalborg University, Department of Chemistry and Bioscience, Fredrik Bajers Vej 7H, Aalborg East, DK-9220, Denmark; Aalborg Zoo, Mølleparkvej 63, Aalborg C, DK-9000, Denmark
| | - Sussie Pagh
- Aalborg University, Department of Chemistry and Bioscience, Fredrik Bajers Vej 7H, Aalborg East, DK-9220, Denmark
| | - Simon Bahrndorff
- Aalborg University, Department of Chemistry and Bioscience, Fredrik Bajers Vej 7H, Aalborg East, DK-9220, Denmark
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34
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Gómez NA, Rodríguez L, López Serrano FR, Pinzón R. Assessment of soil respiration process in a mangrove swamp of Panama's Bay. Heliyon 2023; 9:e18189. [PMID: 37519757 PMCID: PMC10372315 DOI: 10.1016/j.heliyon.2023.e18189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 08/01/2023] Open
Abstract
Studies reveal that mangroves have the ability to store underground carbon more than a tropical forest, and this function is classified as the second most important to mitigate the effects of climate change. However, part of the carbon fixed returns to the atmosphere, and this is done through soil respiration. The present study seeks to quantify the total soil efflux (a subrogate of total soil respiration) that includes both autotrophic and heterotrophic soil efflux, emitted by a Panama's mangrove swamp, as well as to investigate what drivers are important. Firstly, 3 plots were established with predominant mangroves species, such as salty mangrove tree (Avicennia bicolor Standl.) and black mangrove tree (Avicennia germinans L.). Secondly, a forest inventory was carried out in one ha, resulting in 371 trees ha-1, where the salty mangrove tree prevailed with 219 individuals in front of the black mangrove tree, with 152 trees. In addition, tree level measurements were performed such as diameter at breast height (DBH), crown diameter and distance between trees. Third, using a Licor 6400XT infrared gas analyzer system and a meteorological tower, soil CO2 fluxes and air and soil temperature were measured respectively. Results showed a total of 33.61 t of CO2 ha-1 emitted by the soil of the mangrove in 3.5 months.
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Affiliation(s)
| | | | - Francisco Ramón López Serrano
- Higher Technical School of Agricultural and Forest Engineering, University of Castilla-La Mancha, Campus Universitario s/n, 02071 Albacete, Spain
| | - Reinhardt Pinzón
- Universidad Tecnológica de Panamá, Centro de Investigaciones Hidráulicas e Hidrotécnicas (CIHH), Grupo de Computación de Alto Rendimiento, Panama
- Sistema Nacional de Investigación (SNI), SENACYT, Panama
- Centro de Estudios Multidisciplinarios en Ciencias, Ingeniería y Tecnología (CEMCIT-AIP), Panama
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35
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Yu H, Zhang X, Meng X, Luo D, Yue Z, Li Y, Yu Y, Yao H. Comparing the variations and influencing factors of CH 4 emissions from paddies and wetlands under CO 2 enrichment: A data synthesis in the last three decades. Environ Res 2023; 228:115842. [PMID: 37024028 DOI: 10.1016/j.envres.2023.115842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/19/2023] [Accepted: 04/03/2023] [Indexed: 05/16/2023]
Abstract
Understanding and quantifying the impact of elevated tropospheric carbon dioxide concentration (e [CO2]) on methane (CH4) globally is important for effectively assessing and mitigating climate warming. Paddies and wetlands are the two important sources of CH4 emissions. Yet, a quantitative synthetic investigation of the effects of e [CO2] on CH4 emissions from paddies and wetlands on a global scale has not been conducted. Here, we conducted a meta-analysis of 488 observation cases from 40 studies to assess the long-term effects of e [CO2] (ambient [CO2]+ 53-400 μmol mol-1) on CH4 emissions and to identify the relevant key drivers. On aggregate, e [CO2] increased CH4 emissions by 25.7% (p < 0.05) from paddies but did not affect CH4 emissions from wetlands (-3.29%; p > 0.05). The e [CO2] effects on paddy CH4 emissions were positively related to that on belowground biomass and soil-dissolved CH4 content. However, these factors under e [CO2] resulted in no significant change in CH4 emissions in wetlands. Particularly, the e [CO2]-induced abundance of methanogens increased in paddies but decreased in wetlands. In addition, tillering number of rice and water table levels affected e [CO2]-induced CH4 emissions in paddies and wetlands, respectively. On a global scale, CH4 emissions changed from an increase (+0.13 and + 0.86 Pg CO2-eq yr-1) under short-term e [CO2] into a decrease and no changes (-0.22 and + 0.03 Pg CO2-eq yr-1) under long-term e [CO2] in paddies and wetlands, respectively. This suggested that e [CO2]-induced CH4 emissions from paddies and wetlands changed over time. Our results not only shed light on the different stimulative responses of CH4 emissions to e [CO2] from paddy and wetland ecosystems but also suggest that estimates of e [CO2]-induced CH4 emissions from global paddies and wetlands need to account for long-term changes in various regions.
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Affiliation(s)
- Haiyang Yu
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Xuechen Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Xiangtian Meng
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Dan Luo
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhengfu Yue
- Key Laboratory of Low-carbon Green Agriculture in Tropical Region of China, Ministry of Agriculture and Rural Affairs; Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environmental and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China
| | - Yaying Li
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Yongxiang Yu
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China; Research Center for Environmental Ecology and Engineering, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Huaiying Yao
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China; Research Center for Environmental Ecology and Engineering, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430073, China.
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36
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Thers H, Knudsen MT, Lærke PE. Comparison of GHG emissions from annual crops in rotation on drained temperate agricultural peatland with production of reed canary grass in paludiculture using an LCA approach. Heliyon 2023; 9:e17320. [PMID: 37441396 PMCID: PMC10333457 DOI: 10.1016/j.heliyon.2023.e17320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/15/2023] [Accepted: 06/13/2023] [Indexed: 07/15/2023] Open
Abstract
Drained peat soils contribute significantly to global human-caused CO2 emissions and reducing peat degradation via rewetting is high on the political agenda. Ceasing agricultural activities on rewetted soils might lead to land owner resistance and high societal expenses to compensate farmers. Continued biomass production adapted for wet conditions on peat soils potentially minimizes these costs and helps supplying the growing demand for e.g. materials, fuels and feed. Here we used a life cycle assessment approach (cradle to farm gate) to investigate the greenhouse gas (GHG) emissions related to three cases by applying IPCC (Intergovernmental Panel on Climate Change) emission factors and specific site conditions at a bog and a fen site that represent widely distributed temperate peat soils. Besides soil emissions, upstream emissions from input, operational emissions and emission related to rewetting construction work were included. The analyzed systems were deeply drained cash cropping on agricultural bog (potatoes (Solanum tuberosum L.), spring barley (Hordeum vulgare L.) and oat (Avena sativa L.), permanent Reed canary grass (RCG) (Phalaris arundinacea L.) production on non-drained bog and permanent RCG production on shallow-drained fen. The annual mean water table depths (WTD) were -70, -38 (estimated) and -13 cm, respectively. Results showed estimated GHG emissions of 40.5, 26.1 and 20.6 Mg CO2eq ha-1, respectively, corresponding to a 35% GHG reduction for the non-drained bog case as compared to the drained bog case, despite that the obtained WTD due to ceased drainage did not adhere to the IPCC rewetting threshold of -30 cm. Emissions related to crop management represented 7, 14 and 19% of total emissions. In the RCG cultivation on fen case, the WTD were controlled primarily by the water table of the nearby stream and total GHG emissions were even lower as compared to the RCG production on the non-drained bog reflecting the difference in WTD. Rewetting projects need to include careful knowledge of the specific peat area to foresee the actual reduction potential.
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37
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Azizoglu E, Kara R, Celik E. A statistical approach on distribution and seasonal habitat use of waterfowl and shorebirds in Çıldır Lake (Ardahan, Türkiye). Environ Sci Pollut Res Int 2023:10.1007/s11356-023-27855-9. [PMID: 37256398 DOI: 10.1007/s11356-023-27855-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 05/19/2023] [Indexed: 06/01/2023]
Abstract
Wetlands are crucial habitats for both migrant and resident bird assemblages. The distribution and habitat preferences of birds in aquatic ecosystems are significantly influenced by environmental and ecological factors that critically impact the relevant habitats. In order to reveal the distribution and habitat preferences of the birds, many statistical models and methodologies are employed in ecology and conservation biology. Herein, we investigated the effects of year, season, habitat, and species variables on the distribution and population dynamics of waterfowls and shorebirds associated with the wetland. In this regard, field surveys were carried out in and around Çıldır Lake (Ardahan, Türkiye) between April 2017 and September 2018 to examine the distribution of waterfowls and shorebirds and variations in population sizes. As an experimental design, a stratified random sampling design was used to assess bird fauna in the four dominant habitat types (open water surface, reeds, grasslands, and agricultural areas) in the study area. Accordingly, a total of 51 waterfowl and shorebird species were identified during the study period. Of the identified families, Anatidae (n = 18), Scolopacidae (n = 8), and Ardeidae (n = 8) were the most common families. Considering bird species, common coot Fulica atra and mallard Anas platyrhynchos were the most abundant species. The dependent variable (bird populations) was compared with the independent variables (year, season, habitat, and species). The population in 2018 decreased by 13% in comparison to the population in 2017 (p < 0.05). Once the reed area was considered as the reference, the population density in the water surface habitat increased by 65% (p < 0.001). In relation to seasonal reference, a 65% increase in population growth in spring was recorded in comparison to the growth in fall (p < 0.001). On the other hand, no statistical differences were noted in population growth in winter and summer ((p > 0.05). With respect to the reference species (Anas crecca), critical differences in species fluctuation were observed among species (p < 0.001). Consequently, the findings of the present study suggest that seasonal factor might be of the substantial factors linked to the habitat composition. However, more descriptive and predictive analytical methods are needed beyond classical regression approaches in habitat use and selection studies at bird ecology.
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Affiliation(s)
- Erkan Azizoglu
- Department of Plant and Animal Production, Çölemerik Vocational School, Hakkari University, 30100, Hakkari, Turkey
| | - Rıdvan Kara
- Department of Plant and Animal Production, Çölemerik Vocational School, Hakkari University, 30100, Hakkari, Turkey
| | - Emrah Celik
- Hunting and Wildlife Program, Department of Forestry, Vocational School of Technical Sciences, Igdir University, 76000, Igdir, Turkey.
- Ornithology Research and Application Centre (ORNITHOCEN), Igdir University, 76000, Igdir, Turkey.
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Makrickas E, Manton M, Angelstam P, Grygoruk M. Trading wood for water and carbon in peatland forests? Rewetting is worth more than wood production. J Environ Manage 2023; 341:117952. [PMID: 37196393 DOI: 10.1016/j.jenvman.2023.117952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 05/19/2023]
Abstract
While traditional forest management systems aim at maximizing timber production, sustainable forest management focuses on the multiple benefits of entire forest landscapes. The latter is now at the top of policy agendas. This calls for learning through evaluation to support the implementation of policies aiming towards multi-functional forest landscapes. The aim of this study is to quantify the economic trade-offs among natural, current, and re-wetted peatland forests using seven indicators, viz. drainage maintenance, rewetting, water retention, wood production, and three types of carbon sequestration as economic indicators. We discuss ways to adapt to and mitigate effect of forest draining on climate change toward securing multi-functional forest landscapes. The cost benefit analysis showed that in a potential natural state, Lithuania's peatland forests would deliver an economic benefit of ∼€176.1 million annually. In contrast, compared to natural peatland forests, the drainage of peatland forests for wood production has caused a loss of ∼€309 million annually. In comparison, peatland forest rewetting is estimated to increase the economic value by ∼€170 million annually. This study shows that satisfying different ecosystem services is a balancing act, and that a focus on wood production has resulted in net losses when foregone values of water storage and carbon sequestration are considered. Valuation of different sets of ecosystems service benefits and disservices must be assessed, and can be used as a tool towards creating, implementing and monitoring consequences of policies on both sustainability and biodiversity.
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Affiliation(s)
- Evaldas Makrickas
- Vytautas Magnus University, Faculty of Forest Sciences and Ecology, Studentu Str. 11, Akademija, Kauno r., 53361, Lithuania.
| | - Michael Manton
- Vytautas Magnus University, Faculty of Forest Sciences and Ecology, Studentu Str. 11, Akademija, Kauno r., 53361, Lithuania.
| | - Per Angelstam
- Inland Norway University of Applied Sciences, Faculty of Applied Ecology, Agricultural Sciences and Biotechnology, 2480, Evenstad, Norway; Swedish University of Agricultural Sciences (SLU), Faculty of Forest Sciences, School for Forest Management, PO Box 43, 73921, Skinnskatteberg, Sweden.
| | - Mateusz Grygoruk
- Institute of Environmental Engineering, Warsaw University of Life Sciences-SGGW, ul. Nowoursynowska 166, 02-787, Warsaw, Poland.
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Sharma A, Kumar D, Rallapalli S, Singh AP. Wetland functional assessment and uncertainty analysis using fuzzy α-cut-based modified hydrogeomorphic approach. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-27556-3. [PMID: 37184791 DOI: 10.1007/s11356-023-27556-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 05/07/2023] [Indexed: 05/16/2023]
Abstract
Wetlands are significant ecosystems which perform several functions such as ground water recharge, flood control, carbon sequestration, and pollution reduction. Accurate evaluation of wetland functions is challenging, due to uncertainty associated with variables such as vegetation, soil, hydrology, land use, and landscape. Uncertainty is due to the factors such as the cost of evaluating quality parameters, measurement, and human errors. This study proposes an innovative framework based on modified hydrogeomorphic approach (HGMA) using fuzzy α-cut technique. HGMA has been used for wetland functional assessment and α-cut technique is used to characterize uncertainty corresponding to the input variables and wetland functions. The most uncertain variables were found to be the density of wetlands and basin count in the landscape assessment area with the scores of 4.38% and 3.614% respectively. Among the functions, the highest uncertainty is found in functional capacity index (FCI) corresponding to water storage (1.697%) and retain particulate (1.577%). The quantified uncertainty can help the practitioners to make informed decisions regarding planning best management practices for preserving and restoring the wetland functionality.
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Affiliation(s)
- Ashutosh Sharma
- Department of Civil Engineering, Birla Institute of Technology and Science, Pilani, Rajasthan, 333031, India
| | - Dhruv Kumar
- Computer Science and Engineering, Indraprastha Institute of Information Technology, New Delhi, India
| | - Srinivas Rallapalli
- Department of Civil Engineering, Birla Institute of Technology and Science, Pilani, Rajasthan, 333031, India.
- Department of Bioproducts and Biosystems Engineering, University of Minnesota, Twin cities, USA.
| | - Ajit Pratap Singh
- Department of Civil Engineering, Birla Institute of Technology and Science, Pilani, Rajasthan, 333031, India
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Sen A, Bakshi BR. Techno-economic and life cycle analysis of circular phosphorus systems in agriculture. Sci Total Environ 2023; 872:162016. [PMID: 36775165 DOI: 10.1016/j.scitotenv.2023.162016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Fertilizer runoff is a global nuisance that disrupts biogeochemical cycles of nitrogen and phosphorus. We perform techno-economic and life cycle analyses of selected approaches for enabling a circular economy of phosphorus. We consider four schemes: capturing P with ion-exchange resins followed by precipitation, interception by wetland and recovery in char after biomass pyrolysis, removal by bioreactor and recovery in char after bioreactor substrate pyrolysis, and using legacy phosphorus accumulated in a saturated wetland to grow crops by wetlaculture. For each system, we analyze the mass flow, calculate the degree of circularity, and examine the feasibility by techno-economic and life cycle analyses. We find that although ion exchange outperforms the others, the associated economic and emissions burden are too high. Approaches that rely on wetlands are most economically attractive and can have lower impact. However, without policy interventions, the linear economy of phosphorus is likely to remain economically most attractive.
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Affiliation(s)
- Amrita Sen
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Bhavik R Bakshi
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
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Ahmed SS, Zhang W, Loewen MR, Zhu DZ, Ghobrial TR, Mahmood K, van Duin B. Stratification and its consequences in two constructed urban stormwater wetlands. Sci Total Environ 2023; 872:162179. [PMID: 36791861 DOI: 10.1016/j.scitotenv.2023.162179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 01/14/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Stratification in constructed urban stormwater wetlands is one of the fundamental physical processes that affect hydrodynamics, transport and fate of stormwater pollutants. Adverse effects of stratification include decreasing pollutant retention capacity, causing the water at lower depths to become anoxic, degrading water quality and increasing stress on the downstream aquatic communities. The current study reports on a comprehensive field monitoring program of stratification and hydrodynamics in two ice-free seasons (May - October) in two constructed urban stormwater wetlands in Calgary, Canada, with different inlet, outlet, morphometric and vegetation designs. Despite their small sizes of 0.5 and 1.2 ha and shallow water depths of 0.8 m, stratification was strong and persistent in the wetlands. The response of stratification and mixing to atmospheric forcings (e.g., air temperature, atmospheric instability, rainfall depth, wind speed) and the impact of design characteristics (inlet/outlet design, water depth, surface area and aquatic vegetation) were examined and discussed. Thermal stratification, defined as a vertical temperature gradient >1 °C/m, was found to be significantly higher (up to ten times) near the inlets and last longer (up to twice) than in the main cells and the outlet basins due to the relatively cold summer inflows. The wetland with twice the permanent water volume and surface area and half the length-to-width ratio had denser submerged aquatic vegetation, higher (by up to 2 °C) water temperature and more severe (up to eight times) thermal stratification. Strong densimetric stratification and low wind stress on the water surface caused hypoxic conditions near the bed, potentially adversely affecting water quality and downstream aquatic communities.
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Affiliation(s)
- Sherif S Ahmed
- Dept. of Civil and Environmental Engineering, University of Alberta, T6G 1H9, Canada
| | - Wenming Zhang
- Dept. of Civil and Environmental Engineering, University of Alberta, T6G 1H9, Canada
| | - Mark R Loewen
- Dept. of Civil and Environmental Engineering, University of Alberta, T6G 1H9, Canada
| | - David Z Zhu
- Dept. of Civil and Environmental Engineering, University of Alberta, T6G 1H9, Canada; School of Civil and Environmental Engineering, Ningbo University, Zhejiang 315211, China.
| | - Tadros R Ghobrial
- Department of Civil and Water Engineering, Laval University, Quebec, QC G1V 0A6, Canada
| | - Khizar Mahmood
- Water Resources, City of Calgary, Mail Code #403, PO Box 2100, Station M, Calgary, AB T2P 2M5, Canada
| | - Bert van Duin
- Water Resources, City of Calgary, Mail Code #403, PO Box 2100, Station M, Calgary, AB T2P 2M5, Canada
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Fernandez MA. Capitalisation of multiple ecosystems on property prices in Auckland, New Zealand. J Environ Manage 2023; 341:118064. [PMID: 37167695 DOI: 10.1016/j.jenvman.2023.118064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/05/2023] [Accepted: 04/28/2023] [Indexed: 05/13/2023]
Abstract
Ecosystems and their associated services have become essential in policymaking as they often have implications for the welfare of those who live nearby. Coupled with the shift toward integrating green infrastructure, ecosystem services, and nature-based solutions in urban and environmental planning, ecosystems may capitalise on property prices. But a potential phenomenon in applications of hedonic prices models is the offsetting between amenities and disamenities values, which may result in insignificant marginal effects. Some strategies to mitigate this phenomenon involve introducing a greater categorisation of open spaces and housing submarkets typology. Hence, this paper explores the capitalisation patterns of 14 terrestrial and aquatic ecosystems across the housing market segments of Auckland, New Zealand's largest city. We used a dataset of 274 thousand sales transactions between January 2011 and December 2019. Models are estimated via OLS and unconditional quantile regressions (UQR) to account for heterogeneity, outliers and heavy-tailed distributions. UQR produce more accurate estimates of the implicit prices and lead to more effective policy recommendations. We find multiple capitalisation patterns across the prices distribution and confirm offsetting effects when ecosystems are not controlled as separate variables. This paper informs land-use decisions involving the preservation or creation of natural spaces in residential areas and improves our understanding of the interaction between their economic valuation and regional diversity.
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Affiliation(s)
- Mario A Fernandez
- New Systems & Competitiveness, DairyNZ, New Zealand; ESAI Business School, Universidad Espiritu Santo, Ecuador.
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Yang L, Zhang S, Lv X, Liu Y, Guo S, Hu X, Manirakiza B. Vallisneria natans decreased CH 4 fluxes in wetlands: Interactions among plant physiological status, nutrients and epiphytic bacterial community. Environ Res 2023; 224:115547. [PMID: 36822529 DOI: 10.1016/j.envres.2023.115547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/13/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Submerged macrophytes provide niches for epiphytic microbes (including aerobic methanotrophs) growth. However, little is known about the impacts of submerged macrophytes growth status and nutrients loadings on methanotroph community and methane release in wetlands. In the present study, methane fluxes, bacterial and methanotroph community in epiphytic biofilm, and environmental parameters were investigated during Vallisneria natans senescence in wetlands under low (VnL) and high (VnH) nutrients for seven weeks. Relative conductivity and concentration of H2O2, total chlorophyll and malondialdehyde were higher in leaves of V. natans in VnH than VnL at the same sampling time. Nutrients loading increased methane fluxes in treatments with or without (Control) macrophytes, while healthy V. natans plants reduced the methane flux and nutrients concentration in water columns. CH4 fluxes were positively correlated to temperature and COD (p < 0.05). Methane oxidation rates were 3.04-31.68 μmol methane mg-1 fresh weight of V. natans leaves - epiphytic biofilm within 1 h. Proteobacteria, Cyanobacteria, Bacteroidetes, Verrucomicrobia, Planctomycetes, Actinobacteria and Acidobacteria were dominant phylum in all epiphytic biofilms. The mean abundances of pmoA/16S rRNA were higher in VnL than VnH. According to Illumina sequencing results of pmoA gene, γ-proteobacteria and α-proteobacteria were the dominant methanotroph class in epiphytic biofilm from VnH and VnL, respectively. Among seven detected methanotrophic genera, Methylomonas was significantly higher in VnH than VnL. Network analysis revealed that there were much closer relationships between the environmental parameters and epiphytic bacterial community in VnH than in VnL. COD and MDA were negatively correlated with Methyloglobulus, Methylosarcina, Methylobacter and Methylocystis, but positively correlated with Methylomonas and Methylosinus. This study highlights that methanotrophs in epiphytic biofilm play important roles in methane-oxidizing, which can be affected by plant physiological status and environmental parameters.
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Affiliation(s)
- Liu Yang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, PR China; College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Songhe Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, PR China; College of Environment, Hohai University, Nanjing, 210098, PR China.
| | - Xin Lv
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, PR China; College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Yuansi Liu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, PR China; College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Shaozhuang Guo
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, PR China; College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Xiuren Hu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, PR China; College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Benjamin Manirakiza
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, PR China; College of Environment, Hohai University, Nanjing, 210098, PR China
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Wang Z, Li K, Yan F, Xiang Q, Zhao X, Ji L, Xin Y, Sun J, Liu C, Xu X, Zhang Y, Shen X, Xu X, Chen Q. Soil nitrogen content and key functional microorganisms influence the response of wetland anaerobic oxidation of methane to trivalent iron input. Chemosphere 2023; 322:138183. [PMID: 36828110 DOI: 10.1016/j.chemosphere.2023.138183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/05/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Trivalent iron (Fe3+)-dependent anaerobic oxidation of methane (Fe-AOM), which is mediated by metal-reducing bacteria, is widely recognized as a major sink for the greenhouse gas methane (CH4), and is a key driver of the carbon (C) biogeochemical cycle. However, the effect of Fe3+ addition on AOM in the present investigation is still ambiguous, and the mechanism is vague. In this study, we investigated the mechanism of changes in AOM response to Fe3+ input at different wetlands by using laboratory incubation methods combined with molecular biology techniques. Results indicated that Fe3+ input did not always lead to promoted AOM rates, which may be mediated by complex environmental factors, while lower soil total nitrogen (TN) had a positive effect on the response of AOM subjected to Fe3+ input. Notably, the promoted response of AOM was regulated by higher soil microbial diversity, of which the Shannon index was a key indicator leading to variation in the AOM response. Additionally, several biomarkers, including Planctomycetota and Burkholderiaceae, were key microorganisms responsible for alterations in AOM response. Our results suggest that the capacity of Fe3+ cycling-mediated AOM may gradually decrease in light of increasing anthropogenic N and Fe inputs to global estuarine wetlands, while its reaction processes will become more complex and more strongly coupled with multiple environmental factors. This finding contributes to the enhanced understanding and prediction of the wetland CH4-related C with Fe cycles, as well as provides theoretical support for the underlying mechanisms.
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Affiliation(s)
- Zihao Wang
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Kun Li
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Feifei Yan
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, PR China
| | - Qingyue Xiang
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Xinkun Zhao
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Linhui Ji
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Yu Xin
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Jingyu Sun
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Chenmiao Liu
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Xinyi Xu
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Ying Zhang
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Xiaoyan Shen
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China
| | - Xiaoya Xu
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China.
| | - Qingfeng Chen
- College of Geography and Environment, Shandong Normal University, Jinan, 250014, PR China.
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Zhu C, Lv S, Zhao Q, Liu X, Wang Z, Zheng X, Zhou L, Wang Y. Seasonal variation in mercury and methylmercury production in vegetated sediment in the Dongtan wetlands of the Yangtze River Estuary, China. Mar Environ Res 2023; 188:105999. [PMID: 37182325 DOI: 10.1016/j.marenvres.2023.105999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/13/2023] [Accepted: 04/18/2023] [Indexed: 05/16/2023]
Abstract
The seasonal cycling of mercury (Hg) in vegetated sediments in the Dongtan wetlands of the Yangtze River Estuary were determined, and microcosm incubation experiments were conducted to evaluate methylmercury (MeHg) production after Hg input. The results showed that the seasonal variations of total Hg and MeHg were very different. The enhanced activity of methylating bacteria could have been the main contributor to the elevated MeHg in the upper surface layer (0-12 cm), which was supported by the higher copy numbers of the hgcA gene in the surface sediment and the MeHg increase during sediment incubation following litterfall addition. Moreover, the incubation results showed that Hg addition greatly increased net MeHg production and that this increase remained under suboxic conditions, suggesting that the potential health risk of Hg in estuarine wetlands could exist for a long time under changing redox conditions.
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Affiliation(s)
- Changle Zhu
- School of Geographic Sciences, East China Normal University, Shanghai, 200241, PR China
| | - Shaoyang Lv
- School of Geographic Sciences, East China Normal University, Shanghai, 200241, PR China
| | - Qing Zhao
- School of Geographic Sciences, East China Normal University, Shanghai, 200241, PR China
| | - Xia Liu
- School of Geographic Sciences, East China Normal University, Shanghai, 200241, PR China; Key Laboratory of Geographic Information Science, Ministry of Education, East China Normal University, Shanghai, 200241, PR China
| | - Zhigang Wang
- School of Geographic Sciences, East China Normal University, Shanghai, 200241, PR China
| | - Xiangmin Zheng
- School of Geographic Sciences, East China Normal University, Shanghai, 200241, PR China; Key Laboratory of Geographic Information Science, Ministry of Education, East China Normal University, Shanghai, 200241, PR China
| | - Limin Zhou
- School of Geographic Sciences, East China Normal University, Shanghai, 200241, PR China; Key Laboratory of Geographic Information Science, Ministry of Education, East China Normal University, Shanghai, 200241, PR China; Institute of Eco-Chongming, East China Normal University, Shanghai, 200241, PR China
| | - Yongjie Wang
- School of Geographic Sciences, East China Normal University, Shanghai, 200241, PR China; Key Laboratory of Geographic Information Science, Ministry of Education, East China Normal University, Shanghai, 200241, PR China.
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Adhikari NP, Adhikari S. First report on the bacterial community composition, diversity, and functions in Ramsar site of Central Himalayas, Nepal. Environ Monit Assess 2023; 195:573. [PMID: 37060391 DOI: 10.1007/s10661-023-11158-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
Wetland bacterial communities are highly sensitive to altered hydrology and the associated change in water physicochemical and biological properties leading to shifts in community composition and diversity, hence affecting the ecological roles. However, relevant studies are lacking in the wetlands of central Himalayas Nepal. Thus, we aimed to explore the variation of bacterial communities, diversity, and ecologic functions in the wet and dry periods of a wetland (designed as Ramsar site, Ramsar no 2257) by using 16S rRNA gene-based Illumina MiSeq sequencing. We reported a pronounced variation in water physicochemical and biological properties (temperature, pH, Chla, DOC, and TN), bacterial diversity, and community composition. Bacterial communities in the dry season harbored significantly higher alpha diversity, while significantly higher richness and abundance were reflected in the wet season. Our results uncovered the effect of nutrients on bacterial abundance, richness, and community composition. Fourteen percent of the total OTUs were shared in two hydrological periods, and the largest portion of unique OTUs (58%) was observed in the dry season. Planctomycetes and Bacteroidetes dominated the wet season exclusive OTUs; meanwhile, Actinobacteria dominated the dry season exclusive OTUs. Bacteria in these wetlands exhibited divergent ecological functions during the dry and wet seasons. By disclosing the variation of water bacterial communities in different hydrologic periods and their relationship with environmental factors, this first-hand work in the Ramsar site of Nepal will develop a baseline dataset for the scientific community that will assist in understanding the wetland's microbial ecology and biogeography.
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Affiliation(s)
- Namita Paudel Adhikari
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China
- Institute of Tibetan Plateau Research Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Subash Adhikari
- Policy and Planning Commission, Government of Gandaki Province, Pokhara, 33700, Nepal.
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Zaka S, Aqeel M, Mahmood A, Noman A, Rizvi ZF, Sarfraz W, Nazir A, Arshad K, Khalid N. Integrative Evaluation of the Ecological Hazards by Microplastics and Heavy Metals in Wetland Ecosystem. Bull Environ Contam Toxicol 2023; 110:81. [PMID: 37052723 DOI: 10.1007/s00128-023-03716-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 03/20/2023] [Indexed: 05/04/2023]
Abstract
This study was performed to evaluate the impact of microplastics and heavy metals (Pb, Cd, Cr, Cu, Zn, Ni) on sediments, water, aquatic plants (Pistia stratiotes, Alternanthera philoxeroides, and Ipomoea carnea), and fish (Labeo rohita) samples collected from five different sites in the Bajwat wetlands in Sialkot, Pakistan. The concentrations of Pb, Cd, and Cr were above the permissible limits devised by WHO in all the ecosystem components (i.e. sediments, water, plants, and fish) at all sites. The maximum amount of microplastic particles (2317 microplastic particles per kg of sediments) was recorded at Site 1. The filaments were the most commonly found type of microplastics. Plants and fish samples also showed considerable concentration of metals. The multivariate statistical analysis revealed anthropogenic sources of elevated concentrations of metal elements which could cause adverse biological effects in the ecosystem.
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Affiliation(s)
- Shanza Zaka
- Department of Botany, Government College Women University, Sialkot, Pakistan
| | - Muhammad Aqeel
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Adeel Mahmood
- Department of Environmental Sciences, Government College Women University, Sialkot, Pakistan
| | - Ali Noman
- Department of Botany, Government College University, Faisalabad, Pakistan
| | - Zarrin Fatima Rizvi
- Department of Botany, Government College Women University, Sialkot, Pakistan
| | - Wajiha Sarfraz
- Department of Botany, Government College Women University, Sialkot, Pakistan
| | - Aisha Nazir
- Institute of Botany, University of the Punjab, Lahore, Pakistan
| | - Komal Arshad
- Department of Botany, Government College Women University, Sialkot, Pakistan
| | - Noreen Khalid
- Department of Botany, Government College Women University, Sialkot, Pakistan.
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Kafula YA, Thoré ESJ, Philippe C, Munishi LK, Moyo F, Vanschoenwinkel B, Brendonck L. Environmental risks of a commonly used pyrethroid: Insights from temporary pond species of the Lake Manyara Basin, Tanzania. Sci Total Environ 2023; 868:161698. [PMID: 36682542 DOI: 10.1016/j.scitotenv.2023.161698] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 01/08/2023] [Accepted: 01/15/2023] [Indexed: 06/17/2023]
Abstract
Environmental risks posed by widespread pesticide application have attracted global attention. Currently, chemical risk assessments in aquatic environments rely on extrapolation of toxicity data from classic model species. However, similar assessments based on local species could be complementary, particularly for unusual living environments such as temporary ponds. Here, we carried out an environmental risk assessment (ERA) of a pyrethroid model compound, cypermethrin, based on local temporary pond species. First, we measured cypermethrin residue concentrations in rivers, irrigation canals and temporary ponds in the Lake Manyara Basin (LMB). Then, we estimated the environmental risks of cypermethrin by combining these data with acute toxicity data of three resident species across three trophic levels: primary producers (Arthrospira platensis), invertebrate grazers (Streptocephalus lamellifer) and fish (Nothobranchius neumanni). Furthermore, we compared the derived ERA to that obtained using toxicity data from literature of classic model species. Cypermethrin residue concentrations in contaminated systems of the LMB ranged from 0.01 to 57.9 ng/L. For temporary pond species, S. lamellifer was the most sensitive one with a 96 h-LC50 of 0.14 ng/L. Regardless of the assumed exposure concentration (0.01 and 57.9 ng/L), the estimated risks were low for primary producers and high for invertebrate grazers, both for local species as well as for classic model species. The highest detected cypermethrin concentration resulted in a moderate risk estimation for local fish species, while the estimated risk was high when considering classic fish models. Our results confirm that, at least for pyrethroids, ERAs with classic model species are useful to estimate chemical risks in temporary pond ecosystems, and suggest that complementary ERAs based on local species could help to fine-tune environmental regulations to specific local conditions and conservation targets.
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Affiliation(s)
- Yusuph A Kafula
- Laboratory of Animal Ecology, Global Change and Sustainable Development, KU Leuven, Ch. Deberiotstraat 32, 3000 Leuven, Belgium; Department of Sustainable Agriculture, Biodiversity and Ecosystem Management, School of Life Sciences and Bio-Engineering, Nelson Mandela - African Institution of Science and Technology, P. O Box 447, Arusha, Tanzania; Department of Aquatic Sciences, College of Aquatic Sciences and Fisheries, Mwalimu Julius K. Nyerere University of Agriculture and Technology, P. O Box 976, Musoma, Tanzania.
| | - Eli S J Thoré
- Laboratory of Animal Ecology, Global Change and Sustainable Development, KU Leuven, Ch. Deberiotstraat 32, 3000 Leuven, Belgium; TRANSfarm - Science, Engineering and Technology Group, KU Leuven, Bijzondereweg 12, 3360 Lovenjoel, Belgium
| | - Charlotte Philippe
- Laboratory of Animal Ecology, Global Change and Sustainable Development, KU Leuven, Ch. Deberiotstraat 32, 3000 Leuven, Belgium
| | - Linus K Munishi
- Department of Sustainable Agriculture, Biodiversity and Ecosystem Management, School of Life Sciences and Bio-Engineering, Nelson Mandela - African Institution of Science and Technology, P. O Box 447, Arusha, Tanzania
| | - Francis Moyo
- Department of Sustainable Agriculture, Biodiversity and Ecosystem Management, School of Life Sciences and Bio-Engineering, Nelson Mandela - African Institution of Science and Technology, P. O Box 447, Arusha, Tanzania
| | - Bram Vanschoenwinkel
- Community Ecology Laboratory, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium; Centre for Environmental Management, University of the Free State, P. O. Box 339, Bloemfontein 9300, South Africa
| | - Luc Brendonck
- Laboratory of Animal Ecology, Global Change and Sustainable Development, KU Leuven, Ch. Deberiotstraat 32, 3000 Leuven, Belgium; Water Research Group, Unit for Environmental Sciences, and Management, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
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Vanderhoof MK, Alexander L, Christensen J, Solvik K, Nieuwlandt P, Sagehorn M. High-frequency time series comparison of Sentinel-1 and Sentinel-2 satellites for mapping open and vegetated water across the United States (2017-2021). Remote Sens Environ 2023; 288:1-28. [PMID: 37388192 PMCID: PMC10303792 DOI: 10.1016/j.rse.2023.113498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Frequent observations of surface water at fine spatial scales will provide critical data to support the management of aquatic habitat, flood risk and water quality. Sentinel-1 and Sentinel-2 satellites can provide such observations, but algorithms are still needed that perform well across diverse climate and vegetation conditions. We developed surface inundation algorithms for Sentinel-1 and Sentinel-2, respectively, at 12 sites across the conterminous United States (CONUS), covering a total of >536,000 km2 and representing diverse hydrologic and vegetation landscapes. Each scene in the 5-year (2017-2021) time series was classified into open water, vegetated water, and non-water at 20 m resolution using variables from Sentinel-1 and Sentinel-2, as well as variables derived from topographic and weather datasets. The Sentinel-1 algorithm was developed distinct from the Sentinel-2 model to explore if and where the two time series could potentially be integrated into a single high-frequency time series. Within each model, open water and vegetated water (vegetated palustrine, lacustrine, and riverine wetlands) classes were mapped. The models were validated using imagery from WorldView and PlanetScope. Classification accuracy for open water was high across the 5-year period, with an omission and commission error of only 3.1% and 0.9% for the Sentinel-1 algorithm and 3.1% and 0.5% for the Sentinel-2 algorithm, respectively. Vegetated water accuracy was lower, as expected given that the class represents mixed pixels. The Sentinel-2 algorithm showed higher accuracy (10.7% omission and 7.9% commission error) relative to the Sentinel-1 algorithm (28.4% omission and 16.0% commission error). Patterns over time in the proportion of area mapped as open or vegetated water by the Sentinel-1 and Sentinel-2 algorithms were charted and correlated for a subset of all 12 sites. Our results showed that the Sentinel-1 and Sentinel-2 algorithm open water time series can be integrated at all 12 sites to improve the temporal resolution, but sensor-specific differences, such as sensitivity to vegetation structure versus pixel color, complicate the data integration for mixed-pixel, vegetated water. The methods developed here provide inundation at 5-day (Sentinel-2 algorithm) and 12-day (Sentinel-1 algorithm) time steps to improve our understanding of the short- and long-term response of surface water to climate and land use drivers in different ecoregions.
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Affiliation(s)
- Melanie K. Vanderhoof
- U.S. Geological Survey, Geoscience and Environmental Change Science Center, PO Box 25046, MS 980, Denver Federal Center, Denver, CO 80225, USA
| | - Laurie Alexander
- Office of Research and Development, U.S. Environmental Protection Agency, 1200 Pennsylvania Avenue, Washington, DC 20460, USA
| | - Jay Christensen
- Office of Research and Development, U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH 45268, USA
| | - Kylen Solvik
- Department of Geography, Guggenheim 110, 260 University of Colorado, Boulder, CO 80309-0260, USA
| | - Peter Nieuwlandt
- U.S. Geological Survey, Geoscience and Environmental Change Science Center, PO Box 25046, MS 980, Denver Federal Center, Denver, CO 80225, USA
| | - Mallory Sagehorn
- U.S. Geological Survey, Geoscience and Environmental Change Science Center, PO Box 25046, MS 980, Denver Federal Center, Denver, CO 80225, USA
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López-Calderón C, Martín-Vélez V, Blas J, Höfle U, Sánchez MI, Flack A, Fiedler W, Wikelski M, Green AJ. White stork movements reveal the ecological connectivity between landfills and different habitats. Mov Ecol 2023; 11:18. [PMID: 36978169 PMCID: PMC10045253 DOI: 10.1186/s40462-023-00380-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Connections between habitats are key to a full understanding of anthropic impacts on ecosystems. Freshwater habitats are especially biodiverse, yet depend on exchange with terrestrial habitats. White storks (Ciconia ciconia) are widespread opportunists that often forage in landfills and then visit wetlands, among other habitats. It is well known that white storks ingest contaminants at landfills (such as plastics and antibiotic resistant bacteria), which can be then deposited in other habitats through their faeces and regurgitated pellets. METHODS We characterized the role of white storks in habitat connectivity by analyzing GPS data from populations breeding in Germany and wintering from Spain to Morocco. We overlaid GPS tracks on a land-use surface to construct a spatially-explicit network in which nodes were sites, and links were direct flights. We then calculated centrality metrics, identified spatial modules, and quantified overall connections between habitat types. For regional networks in southern Spain and northern Morocco, we built Exponential Random Graph Models (ERGMs) to explain network topologies as a response to node habitat. RESULTS For Spain and Morocco combined, we built a directed spatial network with 114 nodes and 370 valued links. Landfills were the habitat type most connected to others, as measured by direct flights. The relevance of landfills was confirmed in both ERGMs, with significant positive effects of this habitat as a source of flights. In the ERGM for southern Spain, we found significant positive effects of rice fields and salines (solar saltworks) as sinks for flights. By contrast, in the ERGM for northern Morocco, we found a significant positive effect of marshes as a sink for flights. CONCLUSIONS These results illustrate how white storks connect landfills with terrestrial and aquatic habitats, some of which are managed for food production. We identified specific interconnected habitat patches across Spain and Morocco that could be used for further studies on biovectoring of pollutants, pathogens and other propagules.
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Affiliation(s)
- Cosme López-Calderón
- Department of Wetland Ecology, Estación Biológica de Doñana CSIC, Seville, Spain.
| | - Víctor Martín-Vélez
- Department of Wetland Ecology, Estación Biológica de Doñana CSIC, Seville, Spain
| | - Julio Blas
- Department of Conservation Biology, Estación Biológica de Doñana CSIC, Seville, Spain
| | - Ursula Höfle
- SaBio Health and Biotechnology Research Group, Institute for Game and Wildlife Research (IREC), CSIC-UCLM-JCCM, Ciudad Real, Spain
| | - Marta I Sánchez
- Department of Wetland Ecology, Estación Biológica de Doñana CSIC, Seville, Spain
| | - Andrea Flack
- Collective Migration Group, Max Planck Institute of Animal Behavior, 78315, Radolfzell, Germany
- Department of Migration and Immuno-Ecology, Max Planck Institute of Animal Behaviour, Radolfzell, Germany
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, 78468, Constance, Germany
- Department of Biology, University of Konstanz, Constance, Germany
| | - Wolfgang Fiedler
- Department of Migration and Immuno-Ecology, Max Planck Institute of Animal Behaviour, Radolfzell, Germany
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, 78468, Constance, Germany
- Department of Biology, University of Konstanz, Constance, Germany
| | - Martin Wikelski
- Department of Migration and Immuno-Ecology, Max Planck Institute of Animal Behaviour, Radolfzell, Germany
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, 78468, Constance, Germany
- Department of Biology, University of Konstanz, Constance, Germany
| | - Andy J Green
- Department of Wetland Ecology, Estación Biológica de Doñana CSIC, Seville, Spain
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