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Liang H, Huang J, Xia Y, Yang Y, Yu Y, Zhou K, Lin L, Li X, Li B. Spatial distribution and assembly processes of bacterial communities in riverine and coastal ecosystems of a rapidly urbanizing megacity in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 934:173298. [PMID: 38761945 DOI: 10.1016/j.scitotenv.2024.173298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/14/2024] [Accepted: 05/14/2024] [Indexed: 05/20/2024]
Abstract
Rapid urbanization has precipitated significant anthropogenic pollution (nutrients and pathogens) in urban rivers and their receiving systems, which consequentially disrupted the compositions and assembly of bacterial community within these ecosystems. However, there remains scarce information regarding the composition and assembly of both planktonic and benthic bacterial communities as well as pathogen distribution in such environments. In this study, full-length 16S rRNA gene sequencing was conducted to investigate the bacterial community composition, interactions, and assembly processes as well as the distribution of potential pathogens along a riverine-coastal continuum in Shenzhen megacity, China. The results indicated that both riverine and coastal bacterial communities were predominantly composed of Gammaproteobacteria (24.8 ± 12.6 %), Alphaproteobacteria (16.1 ± 9.8 %), and Bacteroidota (14.3 ± 8.6 %), while sedimentary bacterial communities exhibited significantly higher diversity compared to their planktonic counterparts. Bacterial community patterns exhibited significant divergences across different habitats, and a significant distance-decay relationship of bacterial community similarity was particularly observed within the urban river ecosystem. Moreover, the urban river ecosystem displayed a more complex bacterial co-occurrence network than the coastal ecosystem, and a low ratio of negative:positive cohesion suggested the inherent instability of these networks. Homogeneous selection and dispersal limitation emerged as the predominant influences on planktonic and sedimentary bacterial communities, respectively. Pathogenic genera such as Vibrio, Bacteroides, and Acinetobacter, known for their roles in foodborne diseases or wound infection, were also identified. Collectively, these findings provided critical insights into bacterial community dynamics and their implications for ecosystem management and pathogen risk control in riverine and coastal environments impacted by rapid urbanization.
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Affiliation(s)
- Hebin Liang
- State Environmental Protection Key Laboratory of Microorganism Application and Risk Control, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Jin Huang
- State Environmental Protection Key Laboratory of Microorganism Application and Risk Control, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Yu Xia
- School of Environmental Science and Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ying Yang
- School of Marine Sciences, Sun Yat-Sen University, Zhuhai 519082, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai 519000, China
| | - Yang Yu
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou 510642, China
| | - Kai Zhou
- Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (the First Affiliated Hospital, Southern University of Science and Technology; the Second Clinical Medical College, Jinan University), Shenzhen 518020, China
| | - Lin Lin
- State Environmental Protection Key Laboratory of Microorganism Application and Risk Control, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Xiaoyan Li
- State Environmental Protection Key Laboratory of Microorganism Application and Risk Control, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Bing Li
- State Environmental Protection Key Laboratory of Microorganism Application and Risk Control, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
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Marcondes MA, Pessôa R, José da Silva Duarte A, Clissa PB, Sanabani SS. Temporal patterns of bacterial communities in the Billings Reservoir system. Sci Rep 2024; 14:2062. [PMID: 38267511 PMCID: PMC10808195 DOI: 10.1038/s41598-024-52432-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 01/18/2024] [Indexed: 01/26/2024] Open
Abstract
In this study, high-throughput sequencing of 16S rRNA amplicons and predictive PICRUSt functional profiles were used to perform a comprehensive analysis of the temporal bacterial distribution and metabolic functions of 19 bimonthly samples collected from July 2019 to January 2020 in the surface water of Billings Reservoir, São Paulo. The results revealed that most of the bacterial 16S rRNA gene sequences belonged to Cyanobacteria and Proteobacteria, which accounted for more than 58% of the total bacterial abundance. Species richness and evenness indices were highest in surface water from summer samples (January 2020), followed by winter (July 2019) and spring samples (September and November 2019). Results also showed that the highest concentrations of sulfate (SO4-2), phosphate (P), ammonia (NH3), and nitrate (NO3-) were detected in November 2019 and January 2020 compared with samples collected in July and September 2019 (P < 0.05). Principal component analysis suggests that physicochemical factors such as pH, DO, temperature, and NH3 are the most important environmental factors influencing spatial and temporal variations in the community structure of bacterioplankton. At the genus level, 18.3% and 9.9% of OTUs in the July and September 2019 samples, respectively, were assigned to Planktothrix, while 14.4% and 20% of OTUs in the November 2019 and January 2020 samples, respectively, were assigned to Microcystis. In addition, PICRUSt metabolic analysis revealed increasing enrichment of genes in surface water associated with multiple metabolic processes rather than a single regulatory mechanism. This is the first study to examine the temporal dynamics of bacterioplankton and its function in Billings Reservoir during the winter, spring, and summer seasons. The study provides comprehensive reference information on the effects of an artificial habitat on the bacterioplankton community that can be used to interpret the results of studies to evaluate and set appropriate treatment targets.
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Affiliation(s)
- Marta Angela Marcondes
- Post-Graduation Program in Translational Medicine, Department of Medicine, Federal University of São Paulo, São Paulo, 04021-001, Brazil
| | - Rodrigo Pessôa
- Post-Graduation Program in Translational Medicine, Department of Medicine, Federal University of São Paulo, São Paulo, 04021-001, Brazil
| | - Alberto José da Silva Duarte
- Laboratory of Dermatology and Immunodeficiency, Department of Dermatology LIM 56, Faculty of Medicine, University of São Paulo, São Paulo, 05403-000, Brazil
| | | | - Sabri Saeed Sanabani
- Laboratory of Medical Investigation 03 (LIM03), Clinics Hospital, Faculty of Medicine, University of São Paulo, São Paulo, 05403-000, Brazil.
- Laboratory of Dermatology and Immunodeficiency, LIM56/03, Instituto de Medicina Tropical de São Paulo, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Eneas de Carvalho Aguiar, 470 3º Andar, São Paulo, 05403 000, Brazil.
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Swan CM, Baker M, Borowy D, Johnson A, Shcheglovitova M, Sparkman A, Neto FV, Van Appledorn M, Voelker N. Loss of phylogenetic diversity under landscape change. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 822:153595. [PMID: 35114247 DOI: 10.1016/j.scitotenv.2022.153595] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/25/2022] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
Habitat alteration and destruction are primary drivers of biodiversity loss. However, the evolutionary dimensions of biodiversity loss remain largely unexplored in many systems. For example, little is known about how habitat alteration/loss can lead to phylogenetic deconstruction of ecological assemblages at the local level. That is, while species loss is evident, are some lineages favored over others? Using a long-term dataset of a globally, ecologically important guild of invertebrate consumers, stream leaf "shredders," we created a phylogenetic tree of the taxa in the regional species pool, calculated mean phylogenetic distinctiveness for >1000 communities spanning >10 year period, and related species richness, phylogenetic diversity, and distinctiveness to watershed-scale impervious cover. Using a combination of changepoint and compositional analyses, we learned that increasing impervious cover produced marked reductions in all three measures of diversity. These results aid in understanding both phylogenetic diversity and mean assemblage phylogenetic distinctiveness. Our findings indicate that, not only are species lost when there is an increase in watershed urbanization, as other studies have demonstrated, but that those lost are members of more distinct lineages relative to the community as a whole..
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Affiliation(s)
- Christopher M Swan
- Department of Geography & Environmental Systems, University of Maryland, Baltimore County, Baltimore, MD 21250, USA.
| | - Matthew Baker
- Department of Geography & Environmental Systems, University of Maryland, Baltimore County, Baltimore, MD 21250, USA
| | - Dorothy Borowy
- Natural Resources & Science, National Capital Area-Region 1, National Park Service, 4598 MacArthur Blvd., NW, Washington D.C. 20007, USA
| | - Anna Johnson
- Pennsylvania Natural Heritage Program, Western Pennsylvania Conservancy, Pittsburgh, PA 15222, USA
| | - Mariya Shcheglovitova
- Department of Environment and Society, Utah State University, 5215 Old Main Hill, Logan, UT 84322-5215, USA
| | - April Sparkman
- Department of Geography & Environmental Systems, University of Maryland, Baltimore County, Baltimore, MD 21250, USA
| | - Francisco Valente Neto
- Laboratório de Ecologia, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Caixa Postal 549, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Molly Van Appledorn
- US Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA
| | - Nicole Voelker
- Department of Geography & Environmental Systems, University of Maryland, Baltimore County, Baltimore, MD 21250, USA
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Nowell LH, Moran PW, Bexfield LM, Mahler BJ, Van Metre PC, Bradley PM, Schmidt TS, Button DT, Qi SL. Is there an urban pesticide signature? Urban streams in five U.S. regions share common dissolved-phase pesticides but differ in predicted aquatic toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 793:148453. [PMID: 34182445 DOI: 10.1016/j.scitotenv.2021.148453] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/01/2021] [Accepted: 06/10/2021] [Indexed: 05/24/2023]
Abstract
Pesticides occur in urban streams globally, but the relation of occurrence to urbanization can be obscured by regional differences. In studies of five regions of the United States, we investigated the effect of region and urbanization on the occurrence and potential toxicity of dissolved pesticide mixtures. We analyzed 225 pesticide compounds in weekly discrete water samples collected during 6-12 weeks from 271 wadable streams; development in these basins ranged from undeveloped to highly urbanized. Sixteen pesticides were consistently detected in 16 urban centers across the five regions-we propose that these pesticides comprise a suite of urban signature pesticides (USP) that are all common in small U.S. urban streams. These USPs accounted for the majority of summed maximum pesticide concentrations at urban sites within each urban center. USP concentrations, mixture complexity, and potential toxicity increased with the degree of urbanization in the basin. Basin urbanization explained the most variability in multivariate distance-based models of pesticide profiles, with region always secondary in importance. The USPs accounted for 83% of pesticides in the 20 most frequently occurring 2-compound unique mixtures at urban sites, with carbendazim+prometon the most common. Although USPs were consistently detected in all regions, detection frequencies and concentrations varied by region, conferring differences in potential aquatic toxicity. Potential toxicity was highest for invertebrates (benchmarks exceeded in 51% of urban streams), due most often to the neonicotinoid insecticide imidacloprid and secondarily to organophosphate insecticides and fipronil. Benchmarks were rarely exceeded in urban streams for plants (at 3% of sites) or fish (<1%). We propose that the USPs identified here would make logical core (nonexclusive) constituents for monitoring dissolved pesticides in U.S. urban streams, and that unique mixtures containing imidacloprid, fipronil, and carbendazim are priority candidates for mixtures toxicity testing.
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Affiliation(s)
- Lisa H Nowell
- U.S. Geological Survey, California Water Science Center, Placer Hall, 6000 J St., Sacramento, CA 95819, United States of America.
| | - Patrick W Moran
- U.S. Geological Survey, Washington Water Science Center, 934 Broadway, Suite 300, Tacoma, WA 98402, United States of America
| | - Laura M Bexfield
- U.S. Geological Survey, New Mexico Water Science Center, 6700 Edith Blvd NE, Bldg E, Albuquerque, NM 87113, United States of America
| | - Barbara J Mahler
- U.S. Geological Survey, Oklahoma-Texas Water Science Center, 1505 Ferguson Lane, Austin, TX 78754, United States of America
| | - Peter C Van Metre
- U.S. Geological Survey, Oklahoma-Texas Water Science Center, 1505 Ferguson Lane, Austin, TX 78754, United States of America
| | - Paul M Bradley
- U.S. Geological Survey, South Atlantic Water Science Center, 720 Gracern Rd., Suite 129, Columbia, SC 29210, United States of America
| | - Travis S Schmidt
- U.S. Geological Survey, Wyoming-Montana Water Science Center, 3162 Bozeman Ave., Helena, MT 59601, United States of America
| | - Daniel T Button
- U.S. Geological Survey, Ohio-Kentucky-Indiana Water Science Center, 6460 Busch Blvd., Suite 100, Columbus, OH 43229, United States of America
| | - Sharon L Qi
- U.S. Geological Survey, Cascades Volcano Laboratory, 1300 SE Cardinal Ct, Vancouver, WA 98683, United States of America
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Middleton JA, Grierson PF, Pettit NE, Kelly LN, Gwinn DC, Beesley LS. Multi-scale characterisation of stream nutrient and carbon dynamics in sandy near coastal catchments of south-western Australia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 720:137373. [PMID: 32135293 DOI: 10.1016/j.scitotenv.2020.137373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/14/2020] [Accepted: 02/15/2020] [Indexed: 06/10/2023]
Abstract
Managers tasked with repairing degraded stream ecosystems require restoration strategies that are tailored to local and regional characteristics. Emerging evidence suggests that local reach-scale approaches may be as effective, if not more so, than catchment-scale actions in highly permeable coastal landscapes, particularly if there is hydraulic connectivity to shallow groundwater and where recharge is strongly seasonal. This study assessed the relative influence of catchment-scale land use and reach-scale vegetation structure on the distribution of carbon and nutrient concentrations of streams within urban and agricultural catchments of the Perth region of south-western Australia. We used linear mixed-effects models to evaluate the extent to which phosphorus, nitrogen and carbon concentrations in different stream zones (streamwater, and fluvial and parafluvial sediments) were explained by catchment and reach-scale attributes and moderated by high versus low-flow periods, i.e., in wet versus dry months. We found that reach-scale vegetation (woody plant cover, annual plant cover) was a better predictor of nutrient concentrations than catchment-scale land use, particularly total imperviousness, a common measure of urbanisation. Flow was also important, with carbon and nutrient concentrations better described by reach- or catchment-scale attributes during the low flow period. The extent to which individual catchment and reach attributes influenced the distribution of nutrients in different stream zones was complex. However, our results suggest that planting woody vegetation can reduce nitrogen concentrations in surface water and fluvial sediments. Reducing the abundance of weedy annual species and restoring woody perennial species may further reduce phosphorus concentrations in surface water. We conclude that local riparian restoration can be a cost-effective strategy for managing excess nutrients and carbon in flat and permeable urban landscapes, particularly during low flow periods.
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Affiliation(s)
- Jen A Middleton
- School of Biological Sciences, The University of Western Australia, Crawley, WA 6009, Australia; Cooperative Research Centre for Water Sensitive Cities, Clayton, VIC 3168, Australia; Ooid Scientific, White Gum Valley, WA 6162, Australia.
| | - Pauline F Grierson
- School of Biological Sciences, The University of Western Australia, Crawley, WA 6009, Australia
| | - Neil E Pettit
- School of Biological Sciences, The University of Western Australia, Crawley, WA 6009, Australia
| | - Liam N Kelly
- School of Earth and Planetary Sciences, Curtin University, Bentley, WA 6102, Australia
| | - Daniel C Gwinn
- School of Biological Sciences, The University of Western Australia, Crawley, WA 6009, Australia; Biometric Research, Fremantle, WA 6163, Australia
| | - Leah S Beesley
- School of Biological Sciences, The University of Western Australia, Crawley, WA 6009, Australia; Cooperative Research Centre for Water Sensitive Cities, Clayton, VIC 3168, Australia
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Li Y, Fan L, Zhang W, Zhu X, Lei M, Niu L. How did the bacterial community respond to the level of urbanization along the Yangtze River? ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:161-172. [PMID: 31803891 DOI: 10.1039/c9em00399a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bacterial communities in the sediment of the Yangtze River influenced by rapid urbanization have thus far been under-investigated despite the importance of microorganisms as mass transporters. Here, the response patterns of the bacterial community along the Yangtze River to different levels of urbanization were generated using 16S rRNA Miseq sequencing. The results reveal that economic aspects have made the largest contribution (41.8%) to the urbanization along the Yangtze River. A clear declining tendency in the abundance of Chloroflexi and Acidobacteria and a significant increase in the abundance of Bacteroidetes were observed with an elevated urbanization level gradient. Bacterial diversity showed a negative relevance (P < 0.01) to the demographic, economic and social urbanization index. Per capita gross domestic product (GDP) (PCGDP) and the GDP of tertiary industry (GDP3) exhibited significantly (P < 0.05) negative correlations with the bacterial diversity, while a positive relationship between the pH and α-diversity (P < 0.05) was observed. Redundancy analysis revealed that PCGDP was significantly correlated (13.9%, P < 0.01) with the overall bacterial compositions, followed by temperature (10.8%, P < 0.01) and GDP3 (8.4%, P < 0.05). Meanwhile, the GDP3 (35.9%), the ratio of total nitrogen and total phosphorus (N/P) (12.9%) and the PCGDP (8.8%) were revealed to be most significantly related to the metabolic bacteria (P < 0.05). The metabolic functions of the bacteria related to the N-cycle and S-cycle were significant in the sediment of the Yangtze River. The variations of the bacterial community and metabolic function responding to the rapid urbanization were related to the economic development via the influence of the 'mass effect'. In brief, the tertiary industry was significantly correlated with the variations in the composition of the metabolic community and the variations in the overall bacteria were both related to the tertiary and secondary industry.
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Affiliation(s)
- Yi Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Luhuan Fan
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Wenlong Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Xiaoxiao Zhu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Mengting Lei
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Lihua Niu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
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Van Metre PC, Waite IR, Qi S, Mahler B, Terando A, Wieczorek M, Meador M, Bradley P, Journey C, Schmidt T, Carlisle D. Projected urban growth in the southeastern USA puts small streams at risk. PLoS One 2019; 14:e0222714. [PMID: 31618213 PMCID: PMC6795418 DOI: 10.1371/journal.pone.0222714] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 09/05/2019] [Indexed: 11/19/2022] Open
Abstract
Future land-use development has the potential to profoundly affect the health of aquatic ecosystems in the coming decades. We developed regression models predicting the loss of sensitive fish (R2 = 0.39) and macroinvertebrate (R2 = 0.64) taxa as a function of urban and agricultural land uses and applied them to projected urbanization of the rapidly urbanizing Piedmont ecoregion of the southeastern USA for 2030 and 2060. The regression models are based on a 2014 investigation of water quality and ecology of 75 wadeable streams across the region. Based on these projections, stream kilometers experiencing >50% loss of sensitive fish and invertebrate taxa will nearly quadruple to 19,500 and 38,950 km by 2060 (16 and 32% of small stream kilometers in the region), respectively. Uncertainty was assessed using the 20 and 80% probability of urbanization for the land-use projection model and using the 95% confidence intervals for the regression models. Adverse effects on stream health were linked to elevated concentrations of contaminants and nutrients, low dissolved oxygen, and streamflow alteration, all associated with urbanization. The results of this analysis provide a warning of potential risks from future urbanization and perhaps some guidance on how those risks might be mitigated.
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Affiliation(s)
- Peter C. Van Metre
- United States Geological Survey, Austin, Texas, United States of America
- * E-mail:
| | - Ian R. Waite
- United States Geological Survey, Portland, Oregon, United States of America
| | - Sharon Qi
- United States Geological Survey, Portland, Oregon, United States of America
| | - Barbara Mahler
- United States Geological Survey, Austin, Texas, United States of America
| | - Adam Terando
- United States Geological Survey, Raleigh, North Carolina, United States of America
| | - Michael Wieczorek
- United States Geological Survey, Baltimore, Maryland, United States of America
| | - Michael Meador
- United States Geological Survey, Reston, Virginia, United States of America
| | - Paul Bradley
- United States Geological Survey, Columbia, South Carolina, United States of America
| | - Celeste Journey
- United States Geological Survey, Columbia, South Carolina, United States of America
| | - Travis Schmidt
- United States Geological Survey, Fort Collins, Colorado, United States of America
| | - Daren Carlisle
- United States Geological Survey, Lawrence, Kansas, United States of America
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Gwinn DC, Middleton JA, Beesley L, Close P, Quinton B, Storer T, Davies PM. Hierarchical multi-taxa models inform riparian vs. hydrologic restoration of urban streams in a permeable landscape. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2018; 28:385-397. [PMID: 29178482 DOI: 10.1002/eap.1654] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 10/04/2017] [Accepted: 10/19/2017] [Indexed: 06/07/2023]
Abstract
The degradation of streams caused by urbanization tends to follow predictable patterns; however, there is a growing appreciation for heterogeneity in stream response to urbanization due to the local geoclimatic context. Furthermore, there is building evidence that streams in mildly sloped, permeable landscapes respond uncharacteristically to urban stress calling for a more nuanced approach to restoration. We evaluated the relative influence of local-scale riparian characteristics and catchment-scale imperviousness on the macroinvertebrate assemblages of streams in the flat, permeable urban landscape of Perth, Western Australia. Using a hierarchical multi-taxa model, we predicted the outcomes of stylized stream restoration strategies to increase the riparian integrity at the local scale or decrease the influences of imperviousness at the catchment scale. In the urban streams of Perth, we show that local-scale riparian restoration can influence the structure of macroinvertebrate assemblages to a greater degree than managing the influences of catchment-scale imperviousness. We also observed an interaction between the effect of riparian integrity and imperviousness such that the effect of increased riparian integrity was enhanced at lower levels of catchment imperviousness. This study represents one of few conducted in flat, permeable landscapes and the first aimed at informing urban stream restoration in Perth, adding to the growing appreciation for heterogeneity of the Urban Stream Syndrome and its importance for urban stream restoration.
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Affiliation(s)
- Daniel C Gwinn
- Biometric Research, Fremantle, Western Australia, Australia
| | - Jen A Middleton
- Centre of Excellence in Natural Resource Management, University of Western Australia, PO Box 5771, Albany, Western Australia, Australia
- Cooperative Research Centre for Water Sensitive Cities, Clayton, Victoria, Australia
| | - Leah Beesley
- Centre of Excellence in Natural Resource Management, University of Western Australia, PO Box 5771, Albany, Western Australia, Australia
- Cooperative Research Centre for Water Sensitive Cities, Clayton, Victoria, Australia
| | - Paul Close
- Centre of Excellence in Natural Resource Management, University of Western Australia, PO Box 5771, Albany, Western Australia, Australia
- Cooperative Research Centre for Water Sensitive Cities, Clayton, Victoria, Australia
| | - Belinda Quinton
- Cooperative Research Centre for Water Sensitive Cities, Clayton, Victoria, Australia
- Department of Water, Government of Western Australian, Perth, Western Australia, Australia
| | - Tim Storer
- Cooperative Research Centre for Water Sensitive Cities, Clayton, Victoria, Australia
- Department of Water, Government of Western Australian, Perth, Western Australia, Australia
| | - Peter M Davies
- Centre of Excellence in Natural Resource Management, University of Western Australia, PO Box 5771, Albany, Western Australia, Australia
- Cooperative Research Centre for Water Sensitive Cities, Clayton, Victoria, Australia
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How Do Terrestrial Determinants Impact the Response of Water Quality to Climate Drivers?—An Elasticity Perspective on the Water–Land–Climate Nexus. SUSTAINABILITY 2017. [DOI: 10.3390/su9112118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Pennino MJ, McDonald RI, Jaffe PR. Watershed-scale impacts of stormwater green infrastructure on hydrology, nutrient fluxes, and combined sewer overflows in the mid-Atlantic region. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 565:1044-1053. [PMID: 27261425 DOI: 10.1016/j.scitotenv.2016.05.101] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 05/14/2016] [Accepted: 05/15/2016] [Indexed: 05/09/2023]
Abstract
Stormwater green infrastructure (SGI), including rain gardens, detention ponds, bioswales, and green roofs, is being implemented in cities across the globe to reduce flooding, combined sewer overflows, and pollutant transport to streams and rivers. Despite the increasing use of urban SGI, few studies have quantified the cumulative effects of multiple SGI projects on hydrology and water quality at the watershed scale. To assess the effects of SGI, Washington, DC, Montgomery County, MD, and Baltimore County, MD, were selected based on the availability of data on SGI, water quality, and stream flow. The cumulative impact of SGI was evaluated over space and time by comparing watersheds with and without SGI, and by assessing how long-term changes in SGI impact hydrologic and water quality metrics over time. Most Mid-Atlantic municipalities have a goal of achieving 10-20% of the landscape drain runoff through SGI by 2030. Of these areas, Washington, DC currently has the greatest amount of SGI (12.7% of the landscape drained through SGI), while Baltimore County has the lowest (7.9%). When controlling for watersheds size and percent impervious surface cover, watersheds with greater amounts of SGI have less flashy hydrology, with 44% lower peak runoff, 26% less frequent runoff events, and 26% less variable runoff. Watersheds with more SGI also show 44% less NO3(-) and 48% less total nitrogen exports compared to watersheds with minimal SGI. There was no significant reduction in phosphorus exports or combined sewer overflows in watersheds with greater SGI. When comparing individual watersheds over time, increases in SGI corresponded to non-significant reductions in hydrologic flashiness compared to watersheds with no change in SGI. While the implementation of SGI is somewhat in its infancy in some regions, cities are beginning to have a scale of SGI where there are statistically significant differences in hydrologic patterns and water quality.
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Affiliation(s)
- Michael J Pennino
- Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, USA.
| | - Rob I McDonald
- Global Cities Program, The Nature Conservancy, Arlington, VA, USA
| | - Peter R Jaffe
- Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, USA
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Rizzo AA, Raesly RL, Hilderbrand RR. Stream salamander responses to varying degrees of urbanization within Maryland’s piedmont physiographic province. Urban Ecosyst 2015. [DOI: 10.1007/s11252-015-0504-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Askarizadeh A, Rippy MA, Fletcher TD, Feldman DL, Peng J, Bowler P, Mehring AS, Winfrey BK, Vrugt JA, AghaKouchak A, Jiang SC, Sanders BF, Levin LA, Taylor S, Grant SB. From Rain Tanks to Catchments: Use of Low-Impact Development To Address Hydrologic Symptoms of the Urban Stream Syndrome. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:11264-11280. [PMID: 26317612 DOI: 10.1021/acs.est.5b01635] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Catchment urbanization perturbs the water and sediment budgets of streams, degrades stream health and function, and causes a constellation of flow, water quality, and ecological symptoms collectively known as the urban stream syndrome. Low-impact development (LID) technologies address the hydrologic symptoms of the urban stream syndrome by mimicking natural flow paths and restoring a natural water balance. Over annual time scales, the volumes of stormwater that should be infiltrated and harvested can be estimated from a catchment-scale water-balance given local climate conditions and preurban land cover. For all but the wettest regions of the world, a much larger volume of stormwater runoff should be harvested than infiltrated to maintain stream hydrology in a preurban state. Efforts to prevent or reverse hydrologic symptoms associated with the urban stream syndrome will therefore require: (1) selecting the right mix of LID technologies that provide regionally tailored ratios of stormwater harvesting and infiltration; (2) integrating these LID technologies into next-generation drainage systems; (3) maximizing potential cobenefits including water supply augmentation, flood protection, improved water quality, and urban amenities; and (4) long-term hydrologic monitoring to evaluate the efficacy of LID interventions.
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Affiliation(s)
- Asal Askarizadeh
- Department of Civil and Environmental Engineering, Henry Samueli School of Engineering, University of California, Irvine , Irvine, California 92697, United States
| | - Megan A Rippy
- Department of Civil and Environmental Engineering, Henry Samueli School of Engineering, University of California, Irvine , Irvine, California 92697, United States
| | - Tim D Fletcher
- School of Ecosystem and Forest Sciences, Faculty of Science, The University of Melbourne, Burnley Campus , 500 Yarra Boulevard, Richmond, Victoria 3121, Australia
| | - David L Feldman
- Department of Planning, Policy, and Design, School of Social Ecology, University of California, Irvine , Irvine, California 92697, United States
| | - Jian Peng
- Orange County Watersheds Program , 2301 N. Glassell Street, Orange, California 92865, United States
| | - Peter Bowler
- Department of Ecology and Evolutionary Biology, School of Biology, University of California, Irvine , Irvine, California 92697, United States
| | - Andrew S Mehring
- Center for Marine Biodiversity and Conservation, Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California 92093, United States
| | - Brandon K Winfrey
- Department of Environmental Health Sciences, Jonathan and Karen Fielding School of Public Health, University of California, Los Angeles , Los Angeles, California 90095, United States
| | - Jasper A Vrugt
- Department of Civil and Environmental Engineering, Henry Samueli School of Engineering, University of California, Irvine , Irvine, California 92697, United States
| | - Amir AghaKouchak
- Department of Civil and Environmental Engineering, Henry Samueli School of Engineering, University of California, Irvine , Irvine, California 92697, United States
| | - Sunny C Jiang
- Department of Civil and Environmental Engineering, Henry Samueli School of Engineering, University of California, Irvine , Irvine, California 92697, United States
| | - Brett F Sanders
- Department of Civil and Environmental Engineering, Henry Samueli School of Engineering, University of California, Irvine , Irvine, California 92697, United States
| | - Lisa A Levin
- Center for Marine Biodiversity and Conservation, Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California 92093, United States
| | - Scott Taylor
- RBF Consulting/Michael Baker International , 5050 Avenue Encinas, Suite 260, Carlsbad, California 92008, United States
| | - Stanley B Grant
- Department of Civil and Environmental Engineering, Henry Samueli School of Engineering, University of California, Irvine , Irvine, California 92697, United States
- Department of Chemical Engineering and Materials Science, Henry Samueli School of Engineering, University of California, Irvine , Irvine, California 92697, United States
- Department of Infrastructure Engineering, School of Engineering, University of Melbourne , Parkville, Victoria 3010, Australia
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Importance of Riparian Forest Buffers in Conservation of Stream Biodiversity: Responses to Land Uses by Stream-Associated Salamanders across Two Southeastern Temperate Ecoregions. J HERPETOL 2015. [DOI: 10.1670/14-003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Hilderbrand RH, Kashiwagi MT, Prochaska AP. Regional and local scale modeling of stream temperatures and spatio-temporal variation in thermal sensitivities. ENVIRONMENTAL MANAGEMENT 2014; 54:14-22. [PMID: 24740817 DOI: 10.1007/s00267-014-0272-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 03/26/2014] [Indexed: 06/03/2023]
Abstract
Understanding variation in stream thermal regimes becomes increasingly important as the climate changes and aquatic biota approach their thermal limits. We used data from paired air and water temperature loggers to develop region-scale and stream-specific models of average daily water temperature and to explore thermal sensitivities, the slopes of air-water temperature regressions, of mostly forested streams across Maryland, USA. The region-scale stream temperature model explained nearly 90 % of the variation (root mean square error = 0.957 °C), with the mostly flat coastal plain streams having significantly higher thermal sensitivities than the steeper highlands streams with piedmont streams intermediate. Model R (2) for stream-specific models was positively related to a stream's thermal sensitivity. Both the regional and the stream-specific air-water temperature regression models benefited from including mean daily discharge from regional gaging stations, but the degree of improvement declined as a stream's thermal sensitivity increased. Although catchment size had no relationship to thermal sensitivity, steeper streams or those with greater amounts of forest in their upstream watershed were less thermally sensitive. The subset of streams with three or more summers of temperature data exhibited a wide range of annual variation in thermal sensitivity at a site, with the variation not attributable to discharge, precipitation patterns, or physical attributes of streams or their watersheds. Our findings are a useful starting point to better understand patterns in stream thermal regimes. However, a more spatially and temporally comprehensive monitoring network should increase understanding of stream temperature variation and its controls as climatic patterns change.
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Affiliation(s)
- Robert H Hilderbrand
- Appalachian Laboratory, University of Maryland Center for Environmental Science, 301 Braddock Rd, Frostburg, MD, 21532, USA,
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Pratt B, Chang H. Effects of land cover, topography, and built structure on seasonal water quality at multiple spatial scales. JOURNAL OF HAZARDOUS MATERIALS 2012; 209-210:48-58. [PMID: 22277338 DOI: 10.1016/j.jhazmat.2011.12.068] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 12/22/2011] [Accepted: 12/25/2011] [Indexed: 05/31/2023]
Abstract
The relationship among land cover, topography, built structure and stream water quality in the Portland Metro region of Oregon and Clark County, Washington areas, USA, is analyzed using ordinary least squares (OLS) and geographically weighted (GWR) multiple regression models. Two scales of analysis, a sectional watershed and a buffer, offered a local and a global investigation of the sources of stream pollutants. Model accuracy, measured by R(2) values, fluctuated according to the scale, season, and regression method used. While most wet season water quality parameters are associated with urban land covers, most dry season water quality parameters are related topographic features such as elevation and slope. GWR models, which take into consideration local relations of spatial autocorrelation, had stronger results than OLS regression models. In the multiple regression models, sectioned watershed results were consistently better than the sectioned buffer results, except for dry season pH and stream temperature parameters. This suggests that while riparian land cover does have an effect on water quality, a wider contributing area needs to be included in order to account for distant sources of pollutants.
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Affiliation(s)
- Bethany Pratt
- Department of Geography, Portland State University, Portland, OR 97201, USA
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King RS, Baker ME, Kazyak PF, Weller DE. How novel is too novel? Stream community thresholds at exceptionally low levels of catchment urbanization. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2011; 21:1659-78. [PMID: 21830709 DOI: 10.1890/10-1357.1] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Novel physical and chemical conditions of many modern ecosystems increasingly diverge from the environments known to have existed at any time in the history of Earth. The loss of natural land to urbanization is one of the most prevalent drivers of novel environments in freshwaters. However, current understanding of aquatic community response to urbanization is based heavily upon aggregate indicators of community structure and linear or wedge-shaped community response models that challenge ecological community theory. We applied a new analytical method, threshold indicator taxa analysis (TITAN), to a stream biomonitoring data set from Maryland to explicitly evaluate linear community response models to urbanization that implicitly assume individual taxa decline or increase at incrementally different levels of urbanization. We used TITAN (1) to identify the location and magnitude of greatest change in the frequency and abundance of individual taxa and (2) to assess synchrony in the location of change points as evidence for stream community thresholds in response to percent impervious cover in catchments. We documented clear and synchronous threshold declines of 110 of 238 macroinvertebrate taxa in response to low levels of impervious cover. Approximately 80% of the declining taxa did so between 0.5% and 2% impervious cover, whereas the last 20% declined sporadically from 2% to 25% impervious cover. Synchrony of individual responses resulted in distinct community-level thresholds ranging from < or = 0.68% (mountains), 1.28% (piedmont), and 0.96% (coastal plain) impervious cover. Upper limits (95% confidence intervals) of community thresholds were < 2% cover in all regions. Within distinct physiographic classes, higher-gradient, smaller catchments required less impervious cover than lower gradient, larger catchments to elicit community thresholds. Relatively few taxa showed positive responses to increasing impervious cover, and those that did gradually increased in frequency and abundance, approximating a linear cumulative distribution. The sharp, synchronous declines of numerous taxa established a consistent threshold response at exceptionally low levels of catchment urbanization, and uncertainty regarding the estimation of impervious cover from satellite data was mitigated by several corroborating lines of evidence. We suggest that threshold responses of communities to urban and other novel environmental gradients may be more prevalent than currently recognized.
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Affiliation(s)
- Ryan S King
- Center for Reservoir and Aquatic Systems Research, Department of Biology, Baylor University, One Bear Place #97388, Waco, Texas 76798, USA.
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