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Wang B, Zhu Y, Yang X, Shan D, Wang D, Tu Y, Shi Z, Indree T. Effects of plant diversity and community structure on ecosystem multifunctionality under different grazing potentials in the eastern Eurasian steppe. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 934:173128. [PMID: 38734106 DOI: 10.1016/j.scitotenv.2024.173128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 05/08/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024]
Abstract
Grazing potential represents the potential carrying capacity of steppe livestock production. Understanding the impact of changes in plant diversity and community structure on ecosystem multifunctionality (EMF) at different grazing potentials is crucial for the sustainable management of steppe ecosystems. We examined the associations between plant diversity, community structure, above-ground ecosystem multifunctionality (AEMF), and below-ground ecosystem multifunctionality (BEMF) at various grazing potentials. Our assessment employed generalized linear mixed-effects models and structural equation models to determine the impact of these factors on ecosystem multifunctionality. Our study results indicated that ecosystem multifunctionality differed depending on the level of grazing potential and decreased as grazing potential declined. The impact of plant diversity and community structure on above- and below-ground ecosystem multifunctionality varied. Plant diversity and community structure correlated more with AEMF than BEMF. Plant diversity had the most significant effect on EMF under high grazing potential, while community structure had the greatest effect on EMF under moderate and low grazing potential. These improve our understanding of the correlation between steppe plant diversity, community structure, and above- and below-ground ecosystem multifunctionality. This understanding is necessary to develop strategies to increase plant diversity or regulate community structure and the sustainability of steppes.
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Affiliation(s)
- Baizhu Wang
- Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China; Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing 100091, China
| | - Yuanjun Zhu
- Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China; Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing 100091, China.
| | - Xiaohui Yang
- Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China; Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing 100091, China
| | - Dan Shan
- College of Agriculture and Forestry, Hulun Buir University, Hulun Buir, 021000, China
| | - Danyu Wang
- Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China; Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing 100091, China
| | - Ya Tu
- Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China; Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing 100091, China
| | - Zhongjie Shi
- Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China; Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing 100091, China
| | - Tuvshintogtokh Indree
- Botanic Garden and Research Institute, Mongolian Academy of Sciences, Ulaanbaatar 13330, Mongolia
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2
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Peng Z, Qian X, Liu Y, Li X, Gao H, An Y, Qi J, Jiang L, Zhang Y, Chen S, Pan H, Chen B, Liang C, van der Heijden MGA, Wei G, Jiao S. Land conversion to agriculture induces taxonomic homogenization of soil microbial communities globally. Nat Commun 2024; 15:3624. [PMID: 38684659 PMCID: PMC11058813 DOI: 10.1038/s41467-024-47348-8] [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: 09/16/2023] [Accepted: 03/28/2024] [Indexed: 05/02/2024] Open
Abstract
Agriculture contributes to a decline in local species diversity and to above- and below-ground biotic homogenization. Here, we conduct a continental survey using 1185 soil samples and compare microbial communities from natural ecosystems (forest, grassland, and wetland) with converted agricultural land. We combine our continental survey results with a global meta-analysis of available sequencing data that cover more than 2400 samples across six continents. Our combined results demonstrate that land conversion to agricultural land results in taxonomic and functional homogenization of soil bacteria, mainly driven by the increase in the geographic ranges of taxa in croplands. We find that 20% of phylotypes are decreased and 23% are increased by land conversion, with croplands enriched in Chloroflexi, Gemmatimonadota, Planctomycetota, Myxcoccota and Latescibacterota. Although there is no significant difference in functional composition between natural ecosystems and agricultural land, functional genes involved in nitrogen fixation, phosphorus mineralization and transportation are depleted in cropland. Our results provide a global insight into the consequences of land-use change on soil microbial taxonomic and functional diversity.
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Affiliation(s)
- Ziheng Peng
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Xun Qian
- College of Natural Resources and Environment, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Yu Liu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Xiaomeng Li
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Hang Gao
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Yining An
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Jiejun Qi
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Lan Jiang
- College of Natural Resources and Environment, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Yiran Zhang
- College of Natural Resources and Environment, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Shi Chen
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Haibo Pan
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Beibei Chen
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Chunling Liang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China
| | - Marcel G A van der Heijden
- Plant-Soil Interactions Group, Agroscope, Zurich, Switzerland
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Gehong Wei
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China.
| | - Shuo Jiao
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, P. R. China.
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3
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Cui Z, Sun J, Wu GL. Plant diversity increases spatial stability of aboveground productivity in alpine grasslands. Oecologia 2024:10.1007/s00442-024-05552-9. [PMID: 38652294 DOI: 10.1007/s00442-024-05552-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 04/08/2024] [Indexed: 04/25/2024]
Abstract
Plant diversity can significantly affect the grassland productivity and its stability. However, it remains unclear how plant diversity affects the spatial stability of natural grassland productivity, especially in alpine regions that are sensitive to climate change. We analyzed the interaction between plant (species richness and productivity, etc.) and climatic factors (precipitation, temperature, and moisture index, etc.) of alpine natural grassland on the Qinghai-Tibetan Plateau. In addition, we tested the relationship between plant diversity and spatial stability of grassland productivity. Results showed that an increase in plant diversity significantly enhanced community productivity and its standard deviation, while reducing the coefficient of variation in productivity. The influence of plant diversity on productivity and the reciprocal of productivity variability coefficient was not affected by vegetation types. The absolute values of the regression slopes between climate factors and productivity in alpine meadow communities with higher plant diversity were smaller than those in alpine meadow communities with lower plant diversity. In other words, alpine meadow communities with higher plant diversity exhibited a weaker response to climatic factors in terms of productivity, whereas those with lower plant diversity showed a stronger response. Our results indicate that high plant diversity buffers the impact of ambient pressure (e.g., precipitation, temperature) on alpine meadow productivity, and significantly enhanced the spatial stability of grassland productivity. This finding provides a theoretical basis for maintaining the stability of grassland ecosystems and scientifically managing alpine grasslands under the continuous climate change.
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Affiliation(s)
- Zeng Cui
- State Key Laboratory of Soil Erosion and Dryland Farming On the Loess Plateau, College of Soil and Water Conservation Science and Engineering (Institute of Soil and Water Conservation), Northwest A & F University, Yangling, 712100, China
- Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, 712100, Shaanxi, China
| | - Jian Sun
- Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Gao-Lin Wu
- State Key Laboratory of Soil Erosion and Dryland Farming On the Loess Plateau, College of Soil and Water Conservation Science and Engineering (Institute of Soil and Water Conservation), Northwest A & F University, Yangling, 712100, China.
- Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, 712100, Shaanxi, China.
- CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, 710061, China.
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4
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Werner CM, Young TP, Stuble KL. Year effects drive beta diversity, but unevenly across plant community types. Ecology 2024; 105:e4188. [PMID: 37877213 DOI: 10.1002/ecy.4188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 05/08/2023] [Accepted: 05/31/2023] [Indexed: 10/26/2023]
Abstract
Year of establishment can be a critical driver of plant communities with the establishment stage of community development particularly susceptible to factors including ambient rain, temperature, and other temporally variable drivers (e.g., seed and seedling predators). However, while year effects have been shown to drive community structure at local (patch) scales, it is yet unexplored how these within-patch effects scale up to drive landscape-level patterns of biodiversity. These dynamics are likely to be critical but are overlooked in many systems including those with high-frequency disturbance regimes or active management. Here we leveraged a series of field-based grassland mesocosms established identically at three sites across 5 years, and each monitored for 4-8 years. We compared the strength of these temporal and spatial drivers (year effects and site effects) on consequent patterns of spatial and temporal variability (beta diversity and turnover) between plots seeded with native perennial species versus those seeded with nonnative annual species. The composition of plots seeded with perennial species showed strong effects of planting year and consequently exhibited higher beta diversity within sites (across mesocosms established in five different years within sites), while plots seeded with annual species had higher between-site variation but low beta diversity within sites. Plots with annual species were also more temporally variable than plots with perennial species. These findings have important implications for our understanding of key drivers of biodiversity across landscapes. Specifically, we showed that variable trajectories in community composition generated by site and year effects during establishment can promote beta diversity across landscapes dominated by perennial species, but are considerably less impactful in annual-dominated systems. These findings further our understanding of the importance of assembly dynamics on landscape-scale patterns of diversity, and have important management implications for restoration efforts.
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Affiliation(s)
- Chhaya M Werner
- Department of Botany, University of Wyoming, Laramie, Wyoming, USA
| | - Truman P Young
- Department of Plant Sciences, University of California Davis, Davis, California, USA
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5
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Zhang Y, Wuriliga, Liu P, Fan R, Guo J, Liu L, Ding Y. Effect of grazing and climatic factors on biodiversity-ecosystem functioning relationships in grassland ecosystems - a case study of typical steppe in Inner Mongolia, China. FRONTIERS IN PLANT SCIENCE 2023; 14:1297061. [PMID: 38186605 PMCID: PMC10770857 DOI: 10.3389/fpls.2023.1297061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/22/2023] [Indexed: 01/09/2024]
Abstract
Biodiversity underpins grassland ecological functions and productive capacities. By studying the mechanisms for the maintenance of species diversity in animal communities, we can provide important theoretical guidance for the optimization of grazing management and biodiversity protection. The typical grassland of Xilingol in Inner Mongolia, China, was used as the experimental area, and a grazing intensity experiment was set up. This consisted of four gradient levels that were grazed by sheep, which were available for continuous monitoring, namely control standard sheep unit·day·hectare-1·year-1 (CK, 0 SSU·d·hm-2y-1), light grazing (LG, 170 SSU·d·hm-2·y-1), moderate grazing (MG, 340 SSU·d·hm-2·y-1), and high grazing (HG, 510 SSU·d·hm-2·y-1). Nine consecutive years of multi-indicator monitoring of vegetation was carried out from 2014-2022, using monitoring data coupled with time series and inter-annual climatic (relative moisture index, RMI) fluctuations. This was done to analyze the impacts of disturbances, such as grazing use and climatic fluctuations, on the diversity of species and above-ground productivity of the community, thereby exploring the relationship between diversity and productivity, and provide possible explanations for the emergence of a range of ecological responses. The statistical analysis methods used were One-way Analysis of Variance (ANOVA), general linear regression and mixed-effects models. The main conclusions of this study are as follows: (1) The grassland in the experimental area under CK had the highest diversity and productivity and the ecosystem was better able to buffer the negative impacts of climatic drought. Furthermore, the effect of climate on productivity and diversity weakened as the intensity of grazing increased. (2) LG to MG had a constant diversity. (3) Grazing utilization changed the relationship between community species diversity and aboveground productivity by releasing spatial community resources, altering the structure of plant communities, weakening competitive exclusion, and strengthening complementary effects. However, under all of the conditions there is a brief stage in the time series when diversity is stimulated to increase, and the higher the grazing intensity, the earlier this occurs.
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Affiliation(s)
- Yiran Zhang
- Inner Mongolia Key Laboratory of Grassland Conservation Ecology, Grassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wuriliga
- Inner Mongolia Key Laboratory of Grassland Conservation Ecology, Grassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot, China
| | - Pengtao Liu
- Inner Mongolia Ecology and Agrometeorology Centre, Hohhot, China
| | - Ruyue Fan
- Inner Mongolia Key Laboratory of Grassland Conservation Ecology, Grassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot, China
| | - Jing Guo
- Inner Mongolia Key Laboratory of Grassland Conservation Ecology, Grassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot, China
| | - Li Liu
- Inner Mongolia Key Laboratory of Grassland Conservation Ecology, Grassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot, China
| | - Yong Ding
- Inner Mongolia Key Laboratory of Grassland Conservation Ecology, Grassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot, China
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6
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Schrama M, Quist CW, Arjen de Groot G, Cieraad E, Ashworth D, Laros I, Hansen LH, Leff J, Fierer N, Bardgett RD. Cessation of grazing causes biodiversity loss and homogenization of soil food webs. Proc Biol Sci 2023; 290:20231345. [PMID: 37964526 PMCID: PMC10646472 DOI: 10.1098/rspb.2023.1345] [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: 06/15/2023] [Accepted: 10/13/2023] [Indexed: 11/16/2023] Open
Abstract
There is widespread concern that cessation of grazing in historically grazed ecosystems is causing biotic homogenization and biodiversity loss. We used 12 montane grassland sites along an 800 km north-south gradient across the UK, to test whether cessation of grazing affects local α- and β-diversity of below-ground food webs. We show cessation of grazing leads to strongly decreased α-diversity of most groups of soil microbes and fauna, particularly of relatively rare taxa. By contrast, the β-diversity varied between groups of soil organisms. While most soil microbial communities exhibited increased homogenization after cessation of grazing, we observed decreased homogenization for soil fauna after cessation of grazing. Overall, our results indicate that exclusion of domesticated herbivores from historically grazed montane grasslands has far-ranging negative consequences for diversity of below-ground food webs. This underscores the importance of grazers for maintaining the diversity of below-ground communities, which play a central role in ecosystem functioning.
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Affiliation(s)
- Maarten Schrama
- Institute of Environmental Sciences, Leiden Universiteit, Einsteinweg 2, 2333CC Leiden, The Netherlands
- Department of Earth and Environmental Sciences, The University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, UK
| | - Casper W. Quist
- Biosystematics group, Wageningen UR, Droevendaalse steeg 1, 6708PB Wageningen, The Netherlands
- Laboratory of Nematology, Wageningen UR, Droevendaalse steeg 1, 6708PB Wageningen, The Netherlands
| | - G. Arjen de Groot
- Wageningen Environmental Research (Alterra), Wageningen UR, Wageningen, The Netherlands
| | - Ellen Cieraad
- Institute of Environmental Sciences, Leiden Universiteit, Einsteinweg 2, 2333CC Leiden, The Netherlands
- Te Pukenga–Nelson Marlborough Institute of Technology, 322 Hardy Street, Nelson 7010, New Zealand
| | - Deborah Ashworth
- Department of Earth and Environmental Sciences, The University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, UK
| | - Ivo Laros
- Wageningen Environmental Research (Alterra), Wageningen UR, Wageningen, The Netherlands
| | - Lars Hestbjerg Hansen
- Environmental Microbiology and Biotechnology, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark
| | - Jonathan Leff
- Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, USA
- Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309, USA
| | - Noah Fierer
- Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, USA
- Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309, USA
| | - Richard D. Bardgett
- Department of Earth and Environmental Sciences, The University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, UK
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Liu S, Plaza C, Ochoa-Hueso R, Trivedi C, Wang J, Trivedi P, Zhou G, Piñeiro J, Martins CSC, Singh BK, Delgado-Baquerizo M. Litter and soil biodiversity jointly drive ecosystem functions. GLOBAL CHANGE BIOLOGY 2023; 29:6276-6285. [PMID: 37578170 DOI: 10.1111/gcb.16913] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/15/2023]
Abstract
The decomposition of litter and the supply of nutrients into and from the soil are two fundamental processes through which the above- and belowground world interact. Microbial biodiversity, and especially that of decomposers, plays a key role in these processes by helping litter decomposition. Yet the relative contribution of litter diversity and soil biodiversity in supporting multiple ecosystem services remains virtually unknown. Here we conducted a mesocosm experiment where leaf litter and soil biodiversity were manipulated to investigate their influence on plant productivity, litter decomposition, soil respiration, and enzymatic activity in the littersphere. We showed that both leaf litter diversity and soil microbial diversity (richness and community composition) independently contributed to explain multiple ecosystem functions. Fungal saprobes community composition was especially important for supporting ecosystem multifunctionality (EMF), plant production, litter decomposition, and activity of soil phosphatase when compared with bacteria or other fungal functional groups and litter species richness. Moreover, leaf litter diversity and soil microbial diversity exerted previously undescribed and significantly interactive effects on EMF and multiple individual ecosystem functions, such as litter decomposition and plant production. Together, our work provides experimental evidence supporting the independent and interactive roles of litter and belowground soil biodiversity to maintain ecosystem functions and multiple services.
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Affiliation(s)
- Shengen Liu
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, China
- Yunnan Key Laboratory of Plateau Wetland Conservation, Restoration and Ecological Services, Kunming, China
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Sevilla, Spain
| | - César Plaza
- Instituto de Ciencias Agrarias (ICA), CSIC, Madrid, Spain
| | - Raúl Ochoa-Hueso
- Department of Biology, IVAGRO, University of Cádiz, Campus de Excelencia Internacional Agroalimentario (CeiA3), Cádiz, Spain
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
| | - Chanda Trivedi
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
| | - Juntao Wang
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
| | - Pankaj Trivedi
- Microbiome Network and Department of Agricultural Biology, Colorado State University, Fort Collins, Colorado, USA
| | - Guiyao Zhou
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Sevilla, Spain
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Juan Piñeiro
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
- ETSI Montes, Forestal y del Medio Natural, Universidad Politécnica de Madrid, Madrid, Spain
| | - Catarina S C Martins
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
| | - Brajesh K Singh
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
- Global Centre for Land-Based Innovation, Western Sydney University, Penrith, New South Wales, Australia
| | - Manuel Delgado-Baquerizo
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Sevilla, Spain
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8
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Scholl EA, Cross WF, Guy CS, Dutton AJ, Junker JR. Landscape diversity promotes stable food-web architectures in large rivers. Ecol Lett 2023; 26:1740-1751. [PMID: 37497804 DOI: 10.1111/ele.14289] [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: 02/28/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/28/2023]
Abstract
Uncovering relationships between landscape diversity and species interactions is crucial for predicting how ongoing land-use change and homogenization will impact the stability and persistence of communities. However, such connections have rarely been quantified in nature. We coupled high-resolution river sonar imaging with annualized energetic food webs to quantify relationships among habitat diversity, energy flux, and trophic interaction strengths in large-river food-web modules that support the endangered Pallid Sturgeon. Our results demonstrate a clear relationship between habitat diversity and species interaction strengths, with more diverse foraging landscapes containing higher production of prey and a greater proportion of weak and potentially stabilizing interactions. Additionally, rare patches of large and relatively stable river sediments intensified these effects and further reduced interaction strengths by increasing prey diversity. Our findings highlight the importance of landscape characteristics in promoting stabilizing food-web architectures and provide direct relevance for future management of imperilled species in a simplified and rapidly changing world.
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Affiliation(s)
| | - Wyatt F Cross
- Department of Ecology, Montana State University, Bozeman, Montana, USA
| | - Christopher S Guy
- U.S. Geological Survey, Montana Cooperative Fishery Research Unit, Department of Ecology, Montana State University, Bozeman, Montana, USA
| | - Adeline J Dutton
- Michigan Department of Natural Resources, Lansing, Michigan, USA
- Montana Cooperative Fishery Research Unit, Bozeman, Montana, USA
| | - James R Junker
- Department of Ecology, Montana State University, Bozeman, Montana, USA
- Great Lakes Research Center 100 Phoenix Drive, Houghton, Michigan, USA
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9
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Qiqige B, Wei B, Wei Y, Liu M, Bi Y, Xu R, Liu N, Yang G, Zhang Y. Climate, not grazing, influences soil microbial diversity through changes in vegetation and abiotic factors on geographical patterns in the Eurasian steppe. FRONTIERS IN PLANT SCIENCE 2023; 14:1238077. [PMID: 37745991 PMCID: PMC10511900 DOI: 10.3389/fpls.2023.1238077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 07/26/2023] [Indexed: 09/26/2023]
Abstract
Livestock grazing has a significant impact on the biodiversity of nature grassland ecosystems, which is mainly regulated by climate factors. Soil microbes are essential components of biogeochemical cycles. However, the coupling effects of grazing with MAT (mean annual temperature) and MAP (mean annual precipitation) on soil microbial communities remain inconsistent. Our study considered the various climates in four grasslands as natural temperature and precipitation gradients combined with grazing intensity (GI). We collected and analyzed vegetation and soil physiochemical properties from four grasslands. Our results showed that climate factors (CF) changed β diversity of soil bacteria and fungi while grazing intensity and their interaction merely affected fungi β diversity. Furthermore, climate factors and grazing intensity impacted changes in vegetation and soil physiochemical properties, with their interaction leading to changes in EC and MBC. Our analysis revealed that climate factors contributed 13.1% to bacteria community variation while grazing intensity contributed 3.01% to fungi community variation. Piecewise SEM analysis demonstrated that MAT and MAP were essential predictors of bacteria β diversity, which was significantly affected by vegetation and soil carbon and nitrogen. At the same time, MAP was an essential factor of fungi β diversity and was mainly affected by soil nitrogen. Our study indicated that bacteria and fungi β diversity was affected by different environmental processes and can adapt to specific grazing intensities over time.
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Affiliation(s)
- Bademu Qiqige
- Department of Grassland Science, College of Grassland Science & Technology, China Agricultural University, Beijing, China
- Key Laboratory of Grasslands Management and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Bin Wei
- Department of Grassland Science, College of Grassland Science & Technology, China Agricultural University, Beijing, China
- Key Laboratory of Grasslands Management and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Yuqi Wei
- Department of Grassland Science, College of Grassland Science & Technology, China Agricultural University, Beijing, China
- Key Laboratory of Grasslands Management and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Mohan Liu
- Department of Grassland Science, College of Grassland Science & Technology, China Agricultural University, Beijing, China
- Key Laboratory of Grasslands Management and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Yixian Bi
- Department of Grassland Science, College of Grassland Science & Technology, China Agricultural University, Beijing, China
- Key Laboratory of Grasslands Management and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Ruixuan Xu
- Department of Grassland Science, College of Grassland Science & Technology, China Agricultural University, Beijing, China
- Key Laboratory of Grasslands Management and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Nan Liu
- Department of Grassland Science, College of Grassland Science & Technology, China Agricultural University, Beijing, China
- Key Laboratory of Grasslands Management and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Gaowen Yang
- Department of Grassland Science, College of Grassland Science & Technology, China Agricultural University, Beijing, China
- Key Laboratory of Grasslands Management and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Yingjun Zhang
- Department of Grassland Science, College of Grassland Science & Technology, China Agricultural University, Beijing, China
- Key Laboratory of Grasslands Management and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
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Yao J, Huang J, Zang R. Alpha and beta diversity jointly drive the aboveground biomass in temperate and tropical forests. Ecol Evol 2023; 13:e10487. [PMID: 37664512 PMCID: PMC10468913 DOI: 10.1002/ece3.10487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 08/03/2023] [Accepted: 08/08/2023] [Indexed: 09/05/2023] Open
Abstract
Changes in biodiversity often affect ecosystem functioning. However, most previous biodiversity and ecosystem functioning (BEF) studies have generally been limited to very small spatial grains. Thus, knowledge regarding the biodiversity-ecosystem functioning relationships across spatial scales is lacking. Moreover, the multiscale nature of biodiversity, and specifically β diversity (i.e., spatial heterogeneity in species composition) was still largely missing in BEF studies. Here, using the vegetation and functional trait data collected from four 6-ha forest dynamics plots (FDPs) in temperate and tropical forests in China, we examine the scale-dependent relationships between tree diversity and the aboveground biomass (AGB), as well as the roles of species spatial heterogeneity in determining the AGB. In tropical forests, the effect of species richness on AGB decreased with spatial grains, while functional dominance played a stronger role at larger spatial grains. In temperate forests, positive relationship between diversity and AGB occurred at all spatial grains, especially on smaller scales. In both temperate and tropical forests, β diversity was positively correlated with AGB, but weaker than α diversity in determining AGB. Overall, complementarity and selection hypothesis play dominant role in determining AGB in temperate and tropical forests, respectively. The roles of these underlying mechanisms are more pronounced with increasing spatial scales. β diversity, a hitherto underexplored facet of biodiversity, is likely to increase ecosystem functions by species spatial turnover and should not be neglected in BEF explorations. Our findings have practical implications for forest management and demonstrate that biotic heterogeneity plays an important positive role in ecosystem functioning.
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Affiliation(s)
- Jie Yao
- Ecology and Nature Conservation Institute, Chinese Academy of ForestryKey Laboratory of Forest Ecology and Environment of National Forestry and Grassland AdministrationBeijingChina
- Co‐Innovation Center for Sustainable Forestry in Southern ChinaNanjing Forestry UniversityNanjingChina
| | - Jihong Huang
- Ecology and Nature Conservation Institute, Chinese Academy of ForestryKey Laboratory of Forest Ecology and Environment of National Forestry and Grassland AdministrationBeijingChina
- Co‐Innovation Center for Sustainable Forestry in Southern ChinaNanjing Forestry UniversityNanjingChina
| | - Runguo Zang
- Ecology and Nature Conservation Institute, Chinese Academy of ForestryKey Laboratory of Forest Ecology and Environment of National Forestry and Grassland AdministrationBeijingChina
- Co‐Innovation Center for Sustainable Forestry in Southern ChinaNanjing Forestry UniversityNanjingChina
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Zhang M, Delgado-Baquerizo M, Li G, Isbell F, Wang Y, Hautier Y, Wang Y, Xiao Y, Cai J, Pan X, Wang L. Experimental impacts of grazing on grassland biodiversity and function are explained by aridity. Nat Commun 2023; 14:5040. [PMID: 37598205 PMCID: PMC10439935 DOI: 10.1038/s41467-023-40809-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 08/10/2023] [Indexed: 08/21/2023] Open
Abstract
Grazing by domestic herbivores is the most widespread land use on the planet, and also a major global change driver in grasslands. Yet, experimental evidence on the long-term impacts of livestock grazing on biodiversity and function is largely lacking. Here, we report results from a network of 10 experimental sites from paired grazed and ungrazed grasslands across an aridity gradient, including some of the largest remaining native grasslands on the planet. We show that aridity partly explains the responses of biodiversity and multifunctionality to long-term livestock grazing. Grazing greatly reduced biodiversity and multifunctionality in steppes with higher aridity, while had no effects in steppes with relatively lower aridity. Moreover, we found that long-term grazing further changed the capacity of above- and below-ground biodiversity to explain multifunctionality. Thus, while plant diversity was positively correlated with multifunctionality across grasslands with excluded livestock, soil biodiversity was positively correlated with multifunctionality across grazed grasslands. Together, our cross-site experiment reveals that the impacts of long-term grazing on biodiversity and function depend on aridity levels, with the more arid sites experiencing more negative impacts on biodiversity and ecosystem multifunctionality. We also highlight the fundamental importance of conserving soil biodiversity for protecting multifunctionality in widespread grazed grasslands.
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Affiliation(s)
- Minna Zhang
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, China
| | - Manuel Delgado-Baquerizo
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico. Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Sevilla, Spain
- Unidad Asociada CSIC-UPO (BioFun). Universidad Pablo de Olavide, Sevilla, Spain
| | - Guangyin Li
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, China
- Key Laboratory of Wetland Ecology and Environment, Heilongjiang Xingkai Lake Wetland Ecosystem National Observation and Research Station, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
| | - Forest Isbell
- Department of Ecology, Evolution and Behavior, University of Minnesota, Saint Paul, MN, USA
| | - Yue Wang
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, China
| | - Yann Hautier
- Ecology and Biodiversity Group, Department of Biology, Utrecht University, Utrecht, the Netherlands
| | - Yao Wang
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, China
| | - Yingli Xiao
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, China
| | - Jinting Cai
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, China
| | - Xiaobin Pan
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, China
| | - Ling Wang
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, China.
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12
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Yang R, Yang Z, Yang S, Chen LL, Xin J, Xu L, Zhang X, Zhai B, Wang Z, Zheng W, Li Z. Nitrogen inhibitors improve soil ecosystem multifunctionality by enhancing soil quality and alleviating microbial nitrogen limitation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 880:163238. [PMID: 37011677 DOI: 10.1016/j.scitotenv.2023.163238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/28/2023] [Accepted: 03/29/2023] [Indexed: 05/27/2023]
Abstract
Soil quality (SQI) is a comprehensive indicator reflecting the agricultural productivity of soil, and soil ecosystem multifunctionality (performing multiple functions simultaneously; EMF) can reflect complex biogeochemical processes. However, the effects of enhanced efficiency nitrogen fertilizers (EENFs; urease inhibitors (NBPT), nitrification inhibitors (DCD), and coated controlled-release urea (RCN)) application on the SQI and soil EMF and their relationships are still unclear. Therefore, we conducted a field experiment to study the effects of different EENFs on the SQI, enzyme stoichiometry and soil EMF in semiarid areas of Northwest China (Gansu, Ningxia, Shaanxi, Shanxi). Across the four study sites, DCD and NBPT increased SQI by 7.61-16.80 % and 2.61 %-23.20 % compared to mineral fertilizer, respectively. N fertilizer application (N200 and EENFs) alleviated microbial N limitation, and EENFs alleviated microbial N and C limitations to a greater extent in Gansu and Shanxi. Moreover, nitrogen inhibitors (Nis; DCD and NBPT) improved the soil EMF to a greater extent than N200 and RCN, DCD increased by 205.82-340.00 % and 145.00-215.47 % in Gansu and Shanxi, respectively; NBPT increased by 332.75-778.59 % and 364.44-929.62 % in Ningxia and Shanxi, respectively. A random forest model showed that the microbial biomass carbon (MBC), microbial biomass nitrogen (MBN) and soil water content (SWC) of the SQI factors were the main driving forces of soil EMF. Moreover, SQI improvement could alleviate microbial C and N limitations and promote the improvement of soil EMF. It is worth noting that soil EMF was mainly affected by microbial N limitation rather than C limitation. Overall, NIs application is an effective way to improve the SQI and soil EMF in the semiarid region of Northwest China.
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Affiliation(s)
- Ruizhe Yang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Ze Yang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Shilong Yang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Lan-Lan Chen
- College of Resources and Environmental Sciences, Gansu Agricultural University/Gansu Provincial Key Laboratory of Arid-land Crop Science, Lanzhou 730070, PR China
| | - Jia Xin
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Changshu National Agro-Ecosystem Observation and Research Station, Chinese Academy of Sciences, Nanjing 210008, PR China
| | - Lingying Xu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Changshu National Agro-Ecosystem Observation and Research Station, Chinese Academy of Sciences, Nanjing 210008, PR China
| | - Xuechen Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Bingnian Zhai
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Zhaohui Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Wei Zheng
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China.
| | - Ziyan Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China.
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Ma Y, Yu Z, Jia S, Wu N, Yin K, Wang Y, Giesy JP, Jin X. Multiple anthropogenic stressors influence the taxonomic and functional homogenization of macroinvertebrate communities on the mainstream of an urban-agricultural river in China. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 341:118017. [PMID: 37150169 DOI: 10.1016/j.jenvman.2023.118017] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 04/15/2023] [Accepted: 04/24/2023] [Indexed: 05/09/2023]
Abstract
Biodiversity loss is caused by intensive human activities and threatens human well-being. However, less is known about how the combined effects of multiple stressors on the diversity of internal (alpha diversity) and multidimensional (beta diversity) communities. Here, we conducted a long-term experiment to quantify the contribution of environmental stressors (including water quality, land use, climate factors, and hydrological regimes) to macroinvertebrate communities alpha and beta diversity in the mainstream of the Songhua River, the third largest river in China, from 2012 to 2019. Our results demonstrated that the alpha and beta diversity indices showed a decline during the study period, with the dissimilarity in community composition between sites decreasing significantly, especially in the impacted river sections (upper and midstream). Despite overall improvement in water quality after management intervention, multiple human-caused stressors still have led to biotic homogenization of macroinvertebrate communities in terms of both taxonomic and functional diversities in the past decade. Our study revealed the increased human land use explained an important portion of the variation of diversities, further indirectly promoting biotic homogenization by changing the physical and chemical factors of water quality, ultimately altering assemblage ecological processes. Furthermore, the facets of diversity have distinct response mechanisms to stressors, providing complementary information from the perspective of taxonomy and function to better reflect the ecological changes of communities. Environmental filtering determined taxonomic beta diversity, and functional beta diversity was driven by the joint efforts of stressors and spatial processes. Finally, we proposed that traditional water quality monitoring alone cannot fully reveal the status of river ecological environment protection, and more importantly, we should explore the continuous changes in biodiversity over the long term. Meanwhile, our results also highlight timely control of nutrient input and unreasonable expansion of land use can better curb the ecological degradation of rivers and promote the healthy and sustainable development of floodplain ecosystems.
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Affiliation(s)
- Yu Ma
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China; China National Environmental Monitoring Centre, Beijing, 100012, China
| | - Zongling Yu
- Ecological Environmental Monitoring Central Station of Heilongjiang Province, Harbin, 150056, China
| | - Shiqi Jia
- China National Environmental Monitoring Centre, Beijing, 100012, China
| | - Naicheng Wu
- Department of Geography and Spatial Information Techniques, NingboUniversity, Ningbo, 315211, China
| | - Kun Yin
- China National Environmental Monitoring Centre, Beijing, 100012, China
| | - Yeyao Wang
- China National Environmental Monitoring Centre, Beijing, 100012, China
| | - John P Giesy
- Department of Integrative Biology, Michigan State University, East Lansing, MI, 48895, USA; Department of Veterinary Biomedical Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5B3, Canada; Department of Environmental Sciences, Baylor University, Waco, TX, 76798-7266, USA
| | - Xiaowei Jin
- China National Environmental Monitoring Centre, Beijing, 100012, China.
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Wang Y, Sun J, Lee TM. Altitude dependence of alpine grassland ecosystem multifunctionality across the Tibetan Plateau. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 332:117358. [PMID: 36724595 DOI: 10.1016/j.jenvman.2023.117358] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/17/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
While altitude affects climatic characteristics, terrestrial plant habitats, and species composition, few studies considered the effects of altitude on ecosystem multifunctionality (EMF). Here, we teased apart the EMF at different altitude with a linear piecewise quantile regression and explore ecosystem functions and environmental factors with EMF along the altitudinal gradient across the Tibetan Plateau. Then, we estimated the response of ecosystem functions to environmental factors, and explain the impact of environmental factors on EMF through the structural equation model. Our data revealed an EMF changepoint at an altitude of about 3900 m where the EMF could be segregated into low- and high-altitude patterns. Our results indicate that water availability drives the EMF mainly through improving soil nutrients and microbe cycling functions in low-altitude regions; conversely, water-heat and phenological conditions regulate the EMF through the role of plant productivity and soil nutrients in high-altitude regions. As such, our EMF analysis suggests that to maintain the long-term stability of the grassland ecosystem, it becomes critical to fully consider the differences in the altitudinal patterns and mechanisms, particularly under the ongoing climate change.
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Affiliation(s)
- Yi Wang
- School of Life Sciences and State Key Lab of Biological Control, Sun Yat-sen University, Guangzhou, 510275, China; State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jian Sun
- State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Tien Ming Lee
- School of Life Sciences and State Key Lab of Biological Control, Sun Yat-sen University, Guangzhou, 510275, China; School of Ecology, Sun Yat-sen University, Guangzhou, 510275, China
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15
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Alvarez MA, Bonjour LDJ, Barros A, Vázquez DP, Aschero V. Distribución de plantas nativas y exóticas a lo largo de gradientes de elevación en senderos de montaña en los Andes de Mendoza, Argentina. BOLETÍN DE LA SOCIEDAD ARGENTINA DE BOTÁNICA 2023. [DOI: 10.31055/1851.2372.v58.n1.38528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
Introducción y objetivos: El cambio climático, el ganado y el creciente uso turístico favorecen la dispersión de plantas exóticas, amenazando la conservación de los ecosistemas altoandinos. Estudiamos los patrones de distribución de plantas nativas y exóticas en senderos recreativos de montaña. M&M: Implementamos el protocolo MIREN en seis senderos (2400-3600 m s.n.m.) en dos áreas protegidas de los Andes centrales de Mendoza en las Cordilleras Frontal y Principal. Resultados: Encontramos 180 especies nativas y 41 exóticas. La riqueza de especies nativas fue máxima a elevaciones intermedias, mientras que la riqueza de exóticas disminuyó con la elevación. La riqueza regional de nativas fue mayor en la Cordillera Frontal que en la Principal (114 versus 71 nativas, respectivamente) mientras que la riqueza regional de exóticas fue menor en la Frontal que en la Principal (20 versus 28 exóticas, respectivamente). La riqueza de exóticas por parcela fue mayor en la Cordillera Frontal que en la Principal. El rango de distribución altitudinal de exóticas fue mayor en la Cordillera Frontal. Dos exóticas abundantes, Taraxacum officinale y Cerastium arvense, estuvieron a lo largo de todo el gradiente en la Cordillera Frontal, alcanzando los 3600 m s.n.m. Encontramos siete exóticas no citadas anteriormente. Conclusiones: Los nuevos registros amplían los rangos de distribución conocidos para algunas especies exóticas. A pesar de que el número de especies exóticas fue similar cerca y lejos de los senderos, cinco especies sólo estuvieron en los bordes de los mismos, lo que sugiere que los senderos favorecen los procesos de invasión.
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16
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Luo Y, Chen Q, Liu F, Dai C. Both species richness and growth forms affect nutrient removal in constructed wetlands: A mesocosm experiment. Front Ecol Evol 2023. [DOI: 10.3389/fevo.2023.1139053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
IntroductionPlant richness is thought to improve the function of constructed wetlands (CWs), but most CWs are planted with monocultures, with only a few employed polycultures, which have drawn contradictory conclusions. We suppose functional diversity is the key to better performance of plant communities and hypothesize that CWs planted with diverse growth forms are superior in plant growth and nutrient removal.MethodsIn this study, six emergent plant species categorized into slender type (Schoenoplectus tabernaemontani, Typha orientalis), fan type (Iris sibirica, Acorus calamus) and large type (Canna indica and Thalia dealbata) were planted in monocultures, combinations (two species of the same growth form) and mixed polycultures (six species of three growth forms). We then compared how plant growth and nutrient uptake differed among treatments.ResultsIt showed that the polyculture considerably increased the removal of total nitrogen (TN) and total phosphorus (TP), but the combination did not outperform monoculture. High consistency in the patterns between underground biomass and total biomass indicated that plant roots were essential for nutrient consumption. Compared with slender and fan plants, the large plants had a greater biomass increase in polycultures, which greatly accelerated the absorption and assimilation of TN and TP.ConclusionOur study indicated that plant community with various growth forms reduced the intensity of interspecific competition, increased the functional diversity, and greatly enhanced the ability of pollutant removal. Our results also provide some suggestions for plant selection and combination designs in CWs.
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17
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Deterministic Assembly Processes Strengthen the Effects of β-Diversity on Community Biomass of Marine Bacterioplankton. mSystems 2023; 8:e0097022. [PMID: 36511690 PMCID: PMC9948717 DOI: 10.1128/msystems.00970-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The presence of more species in the community of a sampling site (α diversity) typically increases ecosystem functions via nonrandom processes like resource partitioning. When considering multiple communities, we hypothesize that higher compositional difference (β diversity) increases overall functions of these communities. Further, we hypothesize that the β diversity effect is more positive when β diversity is increased by nonrandom assembly processes. To test these hypotheses, we collected bacterioplankton along a transect of 6 sampling sites in the southern East China Sea in 14 cruises. For any pairs of the 6 sites within a cruise, we calculated the Bray-Curtis index to represent β diversity and summed bacterial biomass as a proxy to indicate the overall function of the two communities. We then calculated deviation of observed mean pairwise phylogenetic similarities among species in two communities from random to represent the influences of nonrandom processes. The bacterial β diversity was found to positively affect the summed bacterial biomass; however, the effect varied among cruises. Cross-cruise comparison indicated that the β diversity effect increased with the nonrandom processes selecting for phylogenetically dissimilar species. This study extends biodiversity-ecosystem functioning research to the scale of multiple sites and enriches the framework by considering community assembly processes. IMPORTANCE The implications of our analyses are twofold. First, we emphasize the importance of studying β diversity. We expanded the current biodiversity-ecosystem functioning framework from single to multiple sampling sites and investigated the influences of species compositional differences among sites on the overall functioning of these sites. Since natural ecological communities never exist alone, our analyses allow us to more holistically perceive the role of biodiversity in natural ecosystems. Second, we took community assembly processes into account to attain a more mechanistic understanding of the impacts of biodiversity on ecosystem functioning.
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van der Plas F, Hennecke J, Chase JM, van Ruijven J, Barry KE. Universal beta-diversity-functioning relationships are neither observed nor expected. Trends Ecol Evol 2023; 38:532-544. [PMID: 36806396 DOI: 10.1016/j.tree.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 12/22/2022] [Accepted: 01/19/2023] [Indexed: 02/19/2023]
Abstract
Widespread evidence shows that local species richness (α-diversity) loss hampers the biomass production and stability of ecosystems. β-Diversity, namely the variation of species compositions among different ecological communities, represents another important biodiversity component, but studies on how it drives ecosystem functioning show mixed results. We argue that to better understand the importance of β-diversity we need to consider it across contexts. We focus on three scenarios that cause gradients in β-diversity: changes in (i) abiotic heterogeneity, (ii) habitat isolation, and (iii) species pool richness. We show that across these scenarios we should not expect universally positive relationships between β-diversity, production, and ecosystem stability. Nevertheless, predictable relationships between β-diversity and ecosystem functioning do exist in specific contexts, and can reconcile seemingly contrasting empirical relationships.
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Affiliation(s)
- Fons van der Plas
- Plant Ecology and Nature Conservation Group, Wageningen University, PO Box 47, 6700, AA, Wageningen, The Netherlands.
| | - Justus Hennecke
- Systematic Botany and Functional Biodiversity, Leipzig University, Leipzig, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Jonathan M Chase
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany; Institute of Computer Science, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Jasper van Ruijven
- Plant Ecology and Nature Conservation Group, Wageningen University, PO Box 47, 6700, AA, Wageningen, The Netherlands
| | - Kathryn E Barry
- Ecology and Biodiversity Group, Dept of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
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Guo H, Zhou XB, Tao Y, Yin JF, Zhang L, Guo X, Liu CH, Zhang YM. Perennial herb diversity contributes more than annual herb diversity to multifunctionality in dryland ecosystems of North-western China. FRONTIERS IN PLANT SCIENCE 2023; 14:1099110. [PMID: 36890885 PMCID: PMC9986965 DOI: 10.3389/fpls.2023.1099110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Considerable attention has been given to how different aspects of biodiversity sustain ecosystem functions. Herbs are a critical component of the plant community of dryland ecosystems, but the importance of different life form groups of herbs is often overlooked in experiments on biodiversity-ecosystem multifunctionality. Hence, little is known about how the multiple attributes of diversity of different life form groups of herbs affect changes to the multifunctionality of ecosystems. METHODS We investigated geographic patterns of herb diversity and ecosystem multifunctionality along a precipitation gradient of 2100 km in Northwest China, and assessed the taxonomic, phylogenetic and functional attributes of different life form groups of herbs on the multifunctionality. RESULTS We found that subordinate (richness effect) species of annual herbs and dominant (mass ratio effect) species of perennial herbs were crucial for driving multifunctionality. Most importantly, the multiple attributes (taxonomic, phylogenetic and functional) of herb diversity enhanced the multifunctionality. The functional diversity of herbs provided greater explanatory power than did taxonomic and phylogenetic diversity. In addition, the multiple attribute diversity of perennial herbs contributed more than annual herbs to multifunctionality. CONCLUSIONS Our findings provide insights into previously neglected mechanisms by which the diversity of different life form groups of herbs affect ecosystem multifunctionality. These results provide a comprehensive understanding of the relationship between biodiversity and multifunctionality, and will ultimately contribute to multifunctional conservation and restoration programs in dryland ecosystems.
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Affiliation(s)
- Hao Guo
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xiao-bing Zhou
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Ye Tao
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jin-fei Yin
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Lan Zhang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xing Guo
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Chao-hong Liu
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Yuan-ming Zhang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- University of Chinese Academy of Sciences, Beijing, China
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Boinot S, Alignier A. Discrepancies between the drivers of alpha and beta plant diversity in arable field margins. Proc Biol Sci 2023; 290:20222179. [PMID: 36722079 PMCID: PMC9890110 DOI: 10.1098/rspb.2022.2179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Field margins are major habitats for biodiversity conservation and ecosystem functioning in agricultural landscapes, but biotic homogenization of plant communities threatens their ecological and agronomic functions. Our objective is to determine the drivers of plant diversity in field margins for conservation and restoration purposes. To do so, we assessed the effects of field margin structure and long-term management over 20 years (1995-2015) on the taxonomic and functional α- and β-diversity, and the functional composition of herbaceous plant communities. In 2015, we surveyed 302 field margins in bocage landscapes of Brittany, northwestern France. Results were very similar between taxonomic and functional diversity but revealed important discrepancies between the drivers of α- and β-diversity. Deep ditches, mowing and grazing increased α-diversity but did not affect β-diversity. Denser hedgerows had lower α-diversity than other field margins but strongly contributed to β-diversity by harbouring more unique sets of species or life strategies. Long-term herbicide spraying in field margins and cropping intensity in adjacent habitats did not affect α-diversity, but had more complex effects on β-diversity and selected for common weeds. All in all, preservation of dense hedgerows, abandonment of herbicide spraying, and protection against agrochemical drifts are key measures to prevent the establishment of common weeds and biotic homogenization of herbaceous plant communities in field margins. Above all, our study shows how important it is to go beyond α-diversity to make robust conservation and restoration decisions.
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Affiliation(s)
- Sébastien Boinot
- UMR 0980 BAGAP, INRAE - Institut Agro - ESA, 65 rue de St Brieuc CS 84215, 35042 Rennes, France
| | - Audrey Alignier
- UMR 0980 BAGAP, INRAE - Institut Agro - ESA, 65 rue de St Brieuc CS 84215, 35042 Rennes, France,LTSER 'Zone Atelier Armorique', 35042 Rennes, France
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21
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The supply of multiple ecosystem services requires biodiversity across spatial scales. Nat Ecol Evol 2023; 7:236-249. [PMID: 36376602 DOI: 10.1038/s41559-022-01918-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 09/30/2022] [Indexed: 11/16/2022]
Abstract
The impact of local biodiversity loss on ecosystem functioning is well established, but the role of larger-scale biodiversity dynamics in the delivery of ecosystem services remains poorly understood. Here we address this gap using a comprehensive dataset describing the supply of 16 cultural, regulating and provisioning ecosystem services in 150 European agricultural grassland plots, and detailed multi-scale data on land use and plant diversity. After controlling for land-use and abiotic factors, we show that both plot-level and surrounding plant diversity play an important role in the supply of cultural and aboveground regulating ecosystem services. In contrast, provisioning and belowground regulating ecosystem services are more strongly driven by field-level management and abiotic factors. Structural equation models revealed that surrounding plant diversity promotes ecosystem services both directly, probably by fostering the spill-over of ecosystem service providers from surrounding areas, and indirectly, by maintaining plot-level diversity. By influencing the ecosystem services that local stakeholders prioritized, biodiversity at different scales was also shown to positively influence a wide range of stakeholder groups. These results provide a comprehensive picture of which ecosystem services rely most strongly on biodiversity, and the respective scales of biodiversity that drive these services. This key information is required for the upscaling of biodiversity-ecosystem service relationships, and the informed management of biodiversity within agricultural landscapes.
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22
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The 30-year impact of post-windthrow management on the forest regeneration process in northern Japan. LANDSCAPE AND ECOLOGICAL ENGINEERING 2023. [DOI: 10.1007/s11355-023-00539-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
AbstractThe frequency and intensity of typhoons are expected to increase over time due to climate change. These changes may expose forests to more windthrow in the future, and increasing the resilience of hemiboreal forests through forest management after windthrow is important. Here, we quantified forest structure recovery using aerial photos and light detection and ranging (LiDAR) data after catastrophic windthrow events. Our aims are to test the following three hypotheses: (1) forest structure will not recover within 30 years after windthrow, (2) forest recovery will be affected not only by salvaging but also pre-windthrow attributes and geographical features, and (3) various post-windthrow management including salvaging will drastically alter tree species composition and delay forest recovery. Our results revealed that hypothesis (1) and (2) were supported and (3) was partially supported. The ordination results suggested that more than 30 years were needed to recover canopy tree height after windthrow in hemiboreal forests in Hokkaido, Japan. Salvage logging did not delay natural succession, but it significantly decreased the cover ratio of conifer species sites (0.107 ± 0.023) compared with natural succession sites (0.310 ± 0.091). The higher the elevation, the steeper the site, and the higher the average canopy height before windthrow, the slower the recovery of forest stands after windthrow and salvaging. Scarification and planting after salvage logging significantly increased the number of canopy trees, but those sites differed completely in species composition from the old growth forests. Our study thus determined that the choice and intensity of post-disturbance management in hemiboreal forests should be carefully considered based on the management purpose and local characteristics.
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23
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Neff F, Korner-Nievergelt F, Rey E, Albrecht M, Bollmann K, Cahenzli F, Chittaro Y, Gossner MM, Martínez-Núñez C, Meier ES, Monnerat C, Moretti M, Roth T, Herzog F, Knop E. Different roles of concurring climate and regional land-use changes in past 40 years' insect trends. Nat Commun 2022; 13:7611. [PMID: 36509742 PMCID: PMC9744861 DOI: 10.1038/s41467-022-35223-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/23/2022] [Indexed: 12/14/2022] Open
Abstract
Climate and land-use changes are main drivers of insect declines, but their combined effects have not yet been quantified over large spatiotemporal scales. We analysed changes in the distribution (mean occupancy of squares) of 390 insect species (butterflies, grasshoppers, dragonflies), using 1.45 million records from across bioclimatic gradients of Switzerland between 1980 and 2020. We found no overall decline, but strong increases and decreases in the distributions of different species. For species that showed strongest increases (25% quantile), the average proportion of occupied squares increased in 40 years by 0.128 (95% credible interval: 0.123-0.132), which equals an average increase in mean occupancy of 71.3% (95% CI: 67.4-75.1%) relative to their 40-year mean occupancy. For species that showed strongest declines (25% quantile), the average proportion decreased by 0.0660 (95% CI: 0.0613-0.0709), equalling an average decrease in mean occupancy of 58.3% (95% CI: 52.2-64.4%). Decreases were strongest for narrow-ranged, specialised, and cold-adapted species. Short-term distribution changes were associated to both climate changes and regional land-use changes. Moreover, interactive effects between climate and regional land-use changes confirm that the various drivers of global change can have even greater impacts on biodiversity in combination than alone. In contrast, 40-year distribution changes were not clearly related to regional land-use changes, potentially reflecting mixed changes in local land use after 1980. Climate warming however was strongly linked to 40-year changes, indicating its key role in driving insect trends of temperate regions in recent decades.
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Affiliation(s)
- Felix Neff
- grid.417771.30000 0004 4681 910XAgroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046 Zürich, Switzerland
| | - Fränzi Korner-Nievergelt
- grid.419767.a0000 0001 1512 3677Swiss Ornithological Institute, Seerose 1, 6204 Sempach, Switzerland
| | - Emmanuel Rey
- info fauna, Avenue de Bellevaux 51, 2000 Neuchâtel, Switzerland
| | - Matthias Albrecht
- grid.417771.30000 0004 4681 910XAgroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046 Zürich, Switzerland
| | - Kurt Bollmann
- grid.419754.a0000 0001 2259 5533Biodiversity and Conservation Biology, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland
| | - Fabian Cahenzli
- grid.424520.50000 0004 0511 762XDepartment of Crop Sciences, Research Institute of Organic Agriculture FiBL, Ackerstrasse 113, 5070 Frick, Switzerland
| | | | - Martin M. Gossner
- grid.419754.a0000 0001 2259 5533Forest Entomology, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland ,grid.5801.c0000 0001 2156 2780Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zurich, Universitätstrasse 16, 8092 Zürich, Switzerland
| | - Carlos Martínez-Núñez
- grid.417771.30000 0004 4681 910XAgroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046 Zürich, Switzerland
| | - Eliane S. Meier
- grid.417771.30000 0004 4681 910XAgroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046 Zürich, Switzerland
| | | | - Marco Moretti
- grid.419754.a0000 0001 2259 5533Biodiversity and Conservation Biology, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland
| | - Tobias Roth
- grid.6612.30000 0004 1937 0642Department of Environmental Sciences, Zoology, University of Basel, Vesalgasse 1, 4051 Basel, Switzerland ,Hintermann & Weber AG, Austrasse 2a, 4153 Reinach, Switzerland
| | - Felix Herzog
- grid.417771.30000 0004 4681 910XAgroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046 Zürich, Switzerland
| | - Eva Knop
- grid.417771.30000 0004 4681 910XAgroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046 Zürich, Switzerland ,grid.7400.30000 0004 1937 0650Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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24
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Zhang H, Zhou M, Dong L, Deng Y, Wang W. Critical transition of multifunctional stability induced by nitrogen enrichment in grasslands differing in degradation severity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157660. [PMID: 35907545 DOI: 10.1016/j.scitotenv.2022.157660] [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: 06/02/2022] [Revised: 07/21/2022] [Accepted: 07/23/2022] [Indexed: 06/15/2023]
Abstract
Nitrogen (N) enrichment poses a severe threat to ecosystem multifunctionality. Given increasing variability of ecosystem functioning and uncertainty under global change, a pressing question is how N enrichment affects temporal stability of multiple functions (i.e., 'multifunctional stability'). Whether the responses of multifunctional stability to N enrichment change with external disturbance, such as grasslands with different degradation statuses, remains unclear. We conducted multi-level N enrichment experiments at four grassland sites with no, moderate, severe, and extreme degradation statuses in Inner Mongolia, China. We measured temporal stability of five functions, comprising aboveground net primary productivity, soil total carbon (C) and N storage, and soil microbial biomass C and N storage, to explore how multifunctional stability responded to N enrichment. The temporal stability of most individual functions and multifunctional stability decreased sharply when N input exceeded 20 g N m-2 y-1 in the non-, moderately, and severely degraded grasslands, whereas the threshold declined to 10 g N m-2 y-1 in the extremely degraded grassland. The relative importance of plant and soil microbes in regulating multifunctional stability varied along the degradation gradient. In particular, plant species asynchrony and species richness showed strong positive relationships with multifunctional stability in the non- and moderately degraded grasslands, whereas soil microbial diversity, especially bacterial diversity, was positively associated with multifunctional stability in the severely and extremely degraded grasslands. Overall, our findings identified a critical threshold for N-induced multifunctional stability and called for context-specific biodiversity conservation strategies to buffer the negative effect of N enrichment on grassland ecosystem stability.
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Affiliation(s)
- Hongjin Zhang
- Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China
| | - Mei Zhou
- Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China
| | - Lizheng Dong
- Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China
| | - Yanyu Deng
- Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China; School of Urban Planning and Design, Shenzhen Graduate School, Peking University, Shenzhen 518055, China
| | - Wei Wang
- Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China.
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25
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Zhang R, Tian D, Wang J, Pan J, Zhu J, Li Y, Yan Y, Song L, Wang S, Chen C, Niu S. Dryness weakens the positive effects of plant and fungal β diversities on above- and belowground biomass. GLOBAL CHANGE BIOLOGY 2022; 28:6629-6639. [PMID: 36054413 DOI: 10.1111/gcb.16405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 08/14/2022] [Indexed: 06/15/2023]
Abstract
Plant and microbial diversity are key to determine ecosystem functioning. Despite the well-known role of local-scale α diversity in affecting vegetation biomass, the effects of community heterogeneity (β diversity) of plants and soil microbes on above- and belowground biomass (AGB and BGB) across contrasting environments still remain unclear. Here, we conducted a dryness-gradient transect survey over 3000 km across grasslands on the Tibetan Plateau. We found that plant β diversity was more dominant than α diversity in maintaining higher levels of AGB, while soil fungal β diversity was the key driver in enhancing BGB. However, these positive effects of plant and microbial β diversity on AGB and BGB were strongly weakened by increasing climatic dryness, mainly because higher soil available phosphorus caused by increasing dryness reduced both plant and soil fungal β diversities. Overall, these new findings highlight the critical role of above- and belowground β diversity in sustaining grassland biomass, raising our awareness to the ecological risks of large-scale biotic homogenization under future climate change.
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Affiliation(s)
- Ruiyang Zhang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Dashuan Tian
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Jinsong Wang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Junxiao Pan
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Juntao Zhu
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yang Li
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yingjie Yan
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Lei Song
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Song Wang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Chen Chen
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Shuli Niu
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China
- Department of Environment and Resources, University of Chinese Academy of Sciences, Beijing, People's Republic of China
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26
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Cheng B, Liu H, Bai J, Li J. Soil Fungal Composition Drives Ecosystem Multifunctionality after Long-Term Field Nitrogen and Phosphorus Addition in Alpine Meadows on the Tibetan Plateau. PLANTS (BASEL, SWITZERLAND) 2022; 11:2893. [PMID: 36365345 PMCID: PMC9656404 DOI: 10.3390/plants11212893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
An ecosystem can provide multiple functions and services at the same time, i.e., ecosystem multifunctionality (EMF). Above- and belowground biodiversity and abiotic factors have different effects on EMF. Human activities increase atmospheric nitrogen (N) and phosphorus (P) deposition, but the mechanism of how atmospheric N and P deposition affect EMF in alpine meadows on the Tibetan Plateau is still unclear. Here, we measured eleven ecosystem parameters to quantify EMF by averaging method and explored the impact of plant and microbial species diversity and abiotic factors on EMF after long-term field N and P addition in alpine meadows on the Tibetan Plateau. Results showed that N addition reduced EMF by 15%, NP increased EMF by 20%, and there was no change due to P addition. N and P addition reduced pH, relative light conditions (RLC), and plant species richness and modified plant and fungal community composition. Structural equation model (SEM) analysis confirmed that fungal community composition was an important and positive driver on EMF. These results provided an understanding of how N and P addition affect EMF directly and indirectly through biotic and abiotic pathways, which was important for predicting the response of EMF to atmospheric N and P deposition in the future. Furthermore, the findings suggested that soil fungal composition was more important driving factors than abiotic factors in the response of EMF to N and P addition and the importance of the interactions between plant and soil microbial species diversity in supporting greater EMF.
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27
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Ladouceur E, Blowes SA, Chase JM, Clark AT, Garbowski M, Alberti J, Arnillas CA, Bakker JD, Barrio IC, Bharath S, Borer ET, Brudvig LA, Cadotte MW, Chen Q, Collins SL, Dickman CR, Donohue I, Du G, Ebeling A, Eisenhauer N, Fay PA, Hagenah N, Hautier Y, Jentsch A, Jónsdóttir IS, Komatsu K, MacDougall A, Martina JP, Moore JL, Morgan JW, Peri PL, Power S, Ren Z, Risch AC, Roscher C, Schuchardt M, Seabloom EW, Stevens CJ, Veen G(C, Virtanen R, Wardle GM, Wilfahrt PA, Harpole WS. Linking changes in species composition and biomass in a globally distributed grassland experiment. Ecol Lett 2022; 25:2699-2712. [DOI: 10.1111/ele.14126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 09/14/2022] [Accepted: 09/17/2022] [Indexed: 11/25/2022]
Affiliation(s)
- Emma Ladouceur
- German Centre for Integrative Biodiversity Research (iDiv) Leipzig‐Halle‐Jena Leipzig Germany
- Department of Physiological Diversity, Helmholtz Centre for Environmental Research – UFZ Leipzig Germany
- Department of Biology University of Leipzig Leipzig Germany
- Institute of Computer Science Martin Luther University Halle‐Wittenberg Halle (Saale) Germany
| | - Shane A. Blowes
- German Centre for Integrative Biodiversity Research (iDiv) Leipzig‐Halle‐Jena Leipzig Germany
- Institute of Computer Science Martin Luther University Halle‐Wittenberg Halle (Saale) Germany
| | - Jonathan M. Chase
- German Centre for Integrative Biodiversity Research (iDiv) Leipzig‐Halle‐Jena Leipzig Germany
- Institute of Computer Science Martin Luther University Halle‐Wittenberg Halle (Saale) Germany
| | - Adam T. Clark
- German Centre for Integrative Biodiversity Research (iDiv) Leipzig‐Halle‐Jena Leipzig Germany
- Department of Physiological Diversity, Helmholtz Centre for Environmental Research – UFZ Leipzig Germany
- Institute of Biology Karl‐Franzens University of Graz Styria Austria
| | - Magda Garbowski
- German Centre for Integrative Biodiversity Research (iDiv) Leipzig‐Halle‐Jena Leipzig Germany
- Department of Physiological Diversity, Helmholtz Centre for Environmental Research – UFZ Leipzig Germany
| | - Juan Alberti
- Laboratorio de Ecología, Instituto de Investigaciones Marinas y Costeras (IIMyC) Universidad Nacional de Mar del Plata, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Mar del Plata Argentina
| | - Carlos Alberto Arnillas
- Department of Physical and Environmental Sciences University of Toronto Scarborough Toronto Ontario Canada
| | - Jonathan D. Bakker
- School of Environmental and Forest Sciences University of Washington Seattle Washington USA
| | - Isabel C. Barrio
- Faculty of Environmental and Forest Sciences Agricultural University of Iceland Reykjavík Iceland
| | | | - Elizabeth T. Borer
- Department of Ecology, Evolution, and Behavior University of Minnesota St. Paul Minnesota USA
| | - Lars A. Brudvig
- Department of Plant Biology and Program in Ecology, Evolution, and Behavior Michigan State University East Lansing Michigan USA
| | - Marc W. Cadotte
- Department of Biological Sciences University of Toronto Scarborough Toronto Ontario Canada
| | - Qingqing Chen
- Institute of Ecology, College of Urban and Environmental Science Peking University Beijing China
| | - Scott L. Collins
- Department of Biology University of New Mexico Albuquerque New Mexico USA
| | - Christopher R. Dickman
- School of Life and Environmental Sciences The University of Sydney Sydney New South Wales Australia
| | - Ian Donohue
- Department of Zoology Trinity College Dublin Dublin Ireland
| | - Guozhen Du
- School of Life Sciences Lanzhou University Gansu China
| | - Anne Ebeling
- Institute of Ecology and Evolution Friedrich‐Schiller University Jena Jena Germany
| | - Nico Eisenhauer
- German Centre for Integrative Biodiversity Research (iDiv) Leipzig‐Halle‐Jena Leipzig Germany
- Institute of Biology Martin Luther University Halle—Wittenberg Halle (Saale) Germany
| | - Philip A. Fay
- USDA‐ARS Grassland Soil and Water Research Lab Temple Texas USA
| | - Nicole Hagenah
- Mammal Research Institute, Department of Zoology & Entomology University of Pretoria Pretoria South Africa
| | - Yann Hautier
- Ecology and Biodiversity Group, Department of Biology Utrecht University Utrecht The Netherlands
| | - Anke Jentsch
- Disturbance Ecology, Bayreuth Center of Ecology and Environmental Research University of Bayreuth Bayreuth Germany
| | | | - Kimberly Komatsu
- Smithsonian Environmental Research Center Edgewater Maryland USA
| | - Andrew MacDougall
- Dept of Integrative Biology University of Guelph Guelph Ontario Canada
| | - Jason P. Martina
- Department of Biology Texas State University San Marcos Texas USA
| | - Joslin L. Moore
- Arthur Rylah Institute for Environmental Research Heidelberg Victoria Australia
- School of Biological Sciences Monash University Clayton Victoria Australia
| | - John W. Morgan
- Department of Ecology, Environment and Evolution La Trobe University Bundoora Victoria Australia
| | - Pablo L. Peri
- National Institute of Agricultural Research (INTA) Southern Patagonia National University (UNPA) CONICET Santa Cruz Argentina
| | - Sally A. Power
- Hawkesbury Institute for the Environment Western Sydney University Penrith New South Wales Australia
| | - Zhengwei Ren
- School of Life Sciences Lanzhou University Gansu China
| | - Anita C. Risch
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL Community Ecology Birmensdorf Switzerland
| | - Christiane Roscher
- German Centre for Integrative Biodiversity Research (iDiv) Leipzig‐Halle‐Jena Leipzig Germany
- Department of Physiological Diversity, Helmholtz Centre for Environmental Research – UFZ Leipzig Germany
| | - Max A. Schuchardt
- Disturbance Ecology, Bayreuth Center of Ecology and Environmental Research University of Bayreuth Bayreuth Germany
| | - Eric W. Seabloom
- Department of Ecology, Evolution, and Behavior University of Minnesota St. Paul Minnesota USA
| | | | - G.F. (Ciska) Veen
- Department of Terrestrial Ecology Netherlands Institute of Ecology Wageningen the Netherlands
| | | | - Glenda M. Wardle
- School of Life and Environmental Sciences The University of Sydney Sydney New South Wales Australia
| | - Peter A. Wilfahrt
- Department of Ecology, Evolution, and Behavior University of Minnesota St. Paul Minnesota USA
| | - W. Stanley Harpole
- German Centre for Integrative Biodiversity Research (iDiv) Leipzig‐Halle‐Jena Leipzig Germany
- Department of Physiological Diversity, Helmholtz Centre for Environmental Research – UFZ Leipzig Germany
- Institute of Biology Martin Luther University Halle—Wittenberg Halle (Saale) Germany
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28
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Guerra CA, Berdugo M, Eldridge DJ, Eisenhauer N, Singh BK, Cui H, Abades S, Alfaro FD, Bamigboye AR, Bastida F, Blanco-Pastor JL, de Los Ríos A, Durán J, Grebenc T, Illán JG, Liu YR, Makhalanyane TP, Mamet S, Molina-Montenegro MA, Moreno JL, Mukherjee A, Nahberger TU, Peñaloza-Bojacá GF, Plaza C, Picó S, Verma JP, Rey A, Rodríguez A, Tedersoo L, Teixido AL, Torres-Díaz C, Trivedi P, Wang J, Wang L, Wang J, Zaady E, Zhou X, Zhou XQ, Delgado-Baquerizo M. Global hotspots for soil nature conservation. Nature 2022; 610:693-698. [PMID: 36224389 DOI: 10.1038/s41586-022-05292-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 08/30/2022] [Indexed: 11/09/2022]
Abstract
Soils are the foundation of all terrestrial ecosystems1. However, unlike for plants and animals, a global assessment of hotspots for soil nature conservation is still lacking2. This hampers our ability to establish nature conservation priorities for the multiple dimensions that support the soil system: from soil biodiversity to ecosystem services. Here, to identify global hotspots for soil nature conservation, we performed a global field survey that includes observations of biodiversity (archaea, bacteria, fungi, protists and invertebrates) and functions (critical for six ecosystem services) in 615 composite samples of topsoil from a standardized survey in all continents. We found that each of the different ecological dimensions of soils-that is, species richness (alpha diversity, measured as amplicon sequence variants), community dissimilarity and ecosystem services-peaked in contrasting regions of the planet, and were associated with different environmental factors. Temperate ecosystems showed the highest species richness, whereas community dissimilarity peaked in the tropics, and colder high-latitudinal ecosystems were identified as hotspots of ecosystem services. These findings highlight the complexities that are involved in simultaneously protecting multiple ecological dimensions of soil. We further show that most of these hotspots are not adequately covered by protected areas (more than 70%), and are vulnerable in the context of several scenarios of global change. Our global estimation of priorities for soil nature conservation highlights the importance of accounting for the multidimensionality of soil biodiversity and ecosystem services to conserve soils for future generations.
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Affiliation(s)
- Carlos A Guerra
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany. .,Institute of Biology, Martin Luther University Halle Wittenberg, Halle(Saale), Germany. .,Institute of Biology, Leipzig University, Leipzig, Germany.
| | - Miguel Berdugo
- Institute of Integrative Biology, Department of Environment Systems Science, ETH Zürich, Zürich, Switzerland
| | - David J Eldridge
- Centre for Ecosystem Science, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Nico Eisenhauer
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.,Institute of Biology, Leipzig University, Leipzig, Germany
| | - Brajesh K Singh
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia.,Global Centre for Land-Based Innovation, Western Sydney University, Penrith, New South Wales, Australia
| | - Haiying Cui
- Institute of Grassland Science, School of Life Science, Northeast Normal University, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Changchun, China.,Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Seville, Spain
| | - Sebastian Abades
- GEMA Center for Genomics, Ecology and Environment, Faculty of Interdisciplinary Studies, Universidad Mayor, Huechuraba, Chile
| | - Fernando D Alfaro
- GEMA Center for Genomics, Ecology and Environment, Faculty of Interdisciplinary Studies, Universidad Mayor, Huechuraba, Chile.,Instituto de Ecología & Biodiversidad (IEB), Santiago, Chile
| | | | - Felipe Bastida
- CEBAS-CSIC, Campus Universitario de Espinardo, Murcia, Spain
| | | | - Asunción de Los Ríos
- Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Jorge Durán
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal.,Misión Biolóxica de Galicia, Consejo Superior de Investigaciones Científicas, Pontevedra, Spain
| | - Tine Grebenc
- Slovenian Forestry Institute, Ljubljana, Slovenia
| | - Javier G Illán
- Department of Entomology, College of Agricultural, Human, and Natural Resource Sciences, Washington State University, Pullman, WA, USA
| | - Yu-Rong Liu
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, China
| | - Thulani P Makhalanyane
- Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
| | - Steven Mamet
- Department of Soil Science, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Marco A Molina-Montenegro
- Laboratorio de Ecología Integrativa, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile.,CEAZA, Universidad Católica del Norte, Coquimbo, Chile
| | - José L Moreno
- CEBAS-CSIC, Campus Universitario de Espinardo, Murcia, Spain
| | - Arpan Mukherjee
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, India
| | | | | | - César Plaza
- Instituto de Ciencias Agrarias, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Sergio Picó
- Departamento de Biología, Instituto Universitario de Investigación Marina (INMAR), Universidad de Cádiz, Puerto Real, Spain
| | - Jay Prakash Verma
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, India
| | - Ana Rey
- Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Alexandra Rodríguez
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Leho Tedersoo
- Mycology and Microbiology Center, University of Tartu, Tartu, Estonia.,College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Alberto L Teixido
- Departamento de Botânica e Ecologia, Instituto de Biociências, Universidade Federal de Mato Grosso, Cuiabá, Brazil
| | - Cristian Torres-Díaz
- Grupo de Investigación en Biodiversidad y Cambio Global (GI BCG), Departamento de Ciencias Básicas, Universidad del Bío-Bío, Chillán, Chile
| | - Pankaj Trivedi
- Microbiome Network and Department of Agricultural Biology, Colorado State University, Fort Collins, CO, USA
| | - Juntao Wang
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
| | - Ling Wang
- Institute of Grassland Science, School of Life Science, Northeast Normal University, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Changchun, China
| | - Jianyong Wang
- Institute of Grassland Science, School of Life Science, Northeast Normal University, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Changchun, China
| | - Eli Zaady
- Department of Natural Resources, Agricultural Research Organization, Institute of Plant Sciences, Gilat Research Center, Negev, Israel
| | - Xiaobing Zhou
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Xin-Quan Zhou
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, China
| | - Manuel Delgado-Baquerizo
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Seville, Spain. .,Unidad Asociada CSIC-UPO (BioFun), Universidad Pablo de Olavide, Seville, Spain.
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29
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Wang Y, Liu B, Zhao J, Ye C, Wei L, Sun J, Chu C, Lee TM. Global patterns and abiotic drivers of ecosystem multifunctionality in dominant natural ecosystems. ENVIRONMENT INTERNATIONAL 2022; 168:107480. [PMID: 36007300 DOI: 10.1016/j.envint.2022.107480] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/24/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
The potential patterns and processes of ecosystem multifunctionality (EMF) across global ecosystems are largely unknown, which limits our understanding of how ecosystems respond to drivers. Here we compile a global dataset that consists of 973 unique sites across the forest, grassland, and shrub ecosystems. We identify a critical global pattern of hump-shaped EMF relationship with mean annual precipitation at a threshold of ∼671 mm, where low and high precipitation patterns are discriminated. We find that climatic and soil factors jointly drive the EMF in low precipitation areas, and climatic factors dominate the EMF in high precipitation regions. However, when comparing across the three dominant ecosystems and precipitation regions, the key driver in EMF differs substantially. Specifically, climatic and soil factors dominate the EMF of low and high precipitation regions across forest ecosystems, respectively. Climatic drivers dominate the EMF under different precipitation conditions across grassland and shrub ecosystems. Overall, our findings highlight the importance of climatic and soil drivers on EMF, which should be considered in ecosystem stability models in response to global climate and land-use change scenarios.
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Affiliation(s)
- Yi Wang
- School of Life Sciences and State Key Laboratory of Biological Control, Sun Yat-sen University, Guangzhou 510275, China.
| | - Biying Liu
- School of Life Sciences and State Key Laboratory of Biological Control, Sun Yat-sen University, Guangzhou 510275, China
| | - Jingjing Zhao
- School of Life Sciences and State Key Laboratory of Biological Control, Sun Yat-sen University, Guangzhou 510275, China
| | - Chongchong Ye
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
| | - Lan Wei
- Center for Dynamic Supervision for Usage of Fangchenggang City Sea Area, Fangchenggang, 538001, China
| | - Jian Sun
- State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Chengjin Chu
- School of Ecology and State Key Laboratory of Biological Control, Sun Yat-sen University, Guangzhou 510275, China
| | - Tien Ming Lee
- School of Life Sciences and State Key Laboratory of Biological Control, Sun Yat-sen University, Guangzhou 510275, China; School of Ecology and State Key Laboratory of Biological Control, Sun Yat-sen University, Guangzhou 510275, China.
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30
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Reu JC, Catano CP, Spasojevic MJ, Myers JA. Beta diversity as a driver of forest biomass across spatial scales. Ecology 2022; 103:e3774. [PMID: 35634996 DOI: 10.1002/ecy.3774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/05/2022] [Accepted: 04/20/2022] [Indexed: 12/13/2022]
Abstract
Despite the importance of biodiversity-ecosystem functioning (BEF) relationships in ecology and conservation, relatively little is known about how BEF relationships change across spatial scales. Theory predicts that change in BEF relationships with increasing spatial scale will depend on variation in species composition across space (β-diversity), but empirical evidence for this is limited. Moreover, studies have not quantified the direct and indirect role the environment plays in costructuring ecosystem functioning across spatial scales. We used 14 temperate-forest plots 1.4 ha in size containing 18,323 trees to quantify scale-dependence between aboveground tree biomass and three components of tree-species diversity-α-diversity (average local diversity), γ-diversity (total diversity), and β-diversity. Using structural-equation models, we quantified the direct effects of each diversity component and the environment (soil nutrients and topography), as well as indirect effects of the environment, on tree biomass across 11 spatial extents ranging from 400 to 14,400 m2 . Our results show that the relationship between β-diversity and tree biomass strengthened with increasing spatial extent. Moreover, β-diversity appeared to be a stronger predictor of biomass than α-diversity and γ-diversity at intermediate to large spatial extents. The environment had strong direct and indirect effects on biomass, but, in contrast to diversity, these effects did not strengthen with increasing spatial extent. This study provides some of the first empirical evidence that β-diversity underpins the scaling of BEF relationships in naturally complex ecosystems.
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Affiliation(s)
- Jacqueline C Reu
- Department of Biology, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Christopher P Catano
- Department of Biology, Washington University in St. Louis, St. Louis, Missouri, USA.,Department of Plant Biology, Michigan State University, East Lansing, Michigan, USA
| | - Marko J Spasojevic
- Department of Evolution, Ecology, and Organismal Biology, University of California Riverside, Riverside, California, USA
| | - Jonathan A Myers
- Department of Biology, Washington University in St. Louis, St. Louis, Missouri, USA
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31
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Wang Y, Wang S, Zhao L, Liang C, Miao B, Zhang Q, Niu X, Ma W, Schmid B. Stability and asynchrony of local communities but less so diversity increase regional stability of Inner Mongolian grassland. eLife 2022; 11:74881. [PMID: 36206306 PMCID: PMC9545536 DOI: 10.7554/elife.74881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 08/26/2022] [Indexed: 01/10/2023] Open
Abstract
Extending knowledge on ecosystem stability to larger spatial scales is urgently needed because present local-scale studies are generally ineffective in guiding management and conservation decisions of an entire region with diverse plant communities. We investigated stability of plant productivity across spatial scales and hierarchical levels of organization and analyzed impacts of dominant species, species diversity, and climatic factors using a multisite survey of Inner Mongolian grassland. We found that regional stability across distant local communities was related to stability and asynchrony of local communities. Using only dominant instead of all-species dynamics explained regional stability almost equally well. The diversity of all or only dominant species had comparatively weak effects on stability and synchrony, whereas a lower mean and higher variation of precipitation destabilized regional and local communities by reducing population stability and synchronizing species dynamics. We demonstrate that, for semi-arid temperate grassland with highly uneven species abundances, the stability of regional communities is increased by stability and asynchrony of local communities and these are more affected by climate rather than species diversity. Reduced amounts and increased variation of precipitation in the future may compromise the sustainable provision of ecosystem services to human well-being in this region.
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Affiliation(s)
- Yonghui Wang
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University
| | - Shaopeng Wang
- Institute of Ecology, College of Urban and Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University
| | - Liqing Zhao
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University
| | - Cunzhu Liang
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University
| | - Bailing Miao
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University
| | - Qing Zhang
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University
| | - Xiaxia Niu
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University
| | - Wenhong Ma
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University
| | - Bernhard Schmid
- Department of Geography, Remote Sensing Laboratories, University of Zürich
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32
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Moi DA, Lansac-Tôha FM, Romero GQ, Sobral-Souza T, Cardinale BJ, Kratina P, Perkins DM, Teixeira de Mello F, Jeppesen E, Heino J, Lansac-Tôha FA, Velho LFM, Mormul RP. Human pressure drives biodiversity-multifunctionality relationships in large Neotropical wetlands. Nat Ecol Evol 2022; 6:1279-1289. [PMID: 35927315 DOI: 10.1038/s41559-022-01827-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 06/13/2022] [Indexed: 01/09/2023]
Abstract
Many studies have shown that biodiversity regulates multiple ecological functions that are needed to maintain the productivity of a variety of ecosystem types. What is unknown is how human activities may alter the 'multifunctionality' of ecosystems through both direct impacts on ecosystems and indirect effects mediated by the loss of multifaceted biodiversity. Using an extensive database of 72 lakes spanning four large Neotropical wetlands in Brazil, we demonstrate that species richness and functional diversity across multiple larger (fish and macrophytes) and smaller (microcrustaceans, rotifers, protists and phytoplankton) groups of aquatic organisms are positively associated with ecosystem multifunctionality. Whereas the positive association between smaller organisms and multifunctionality broke down with increasing human pressure, this positive relationship was maintained for larger organisms despite the increase in human pressure. Human pressure impacted multifunctionality both directly and indirectly through reducing species richness and functional diversity of multiple organismal groups. These findings provide further empirical evidence about the importance of aquatic biodiversity for maintaining wetland multifunctionality. Despite the key role of biodiversity, human pressure reduces the diversity of multiple groups of aquatic organisms, eroding their positive impacts on a suite of ecological functions that sustain wetlands.
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Affiliation(s)
- Dieison A Moi
- Department of Biology (DBI), Center of Biological Sciences (CCB), State University of Maringá (UEM), Maringá, Brazil.
| | - Fernando M Lansac-Tôha
- Department of Biology (DBI), Center of Biological Sciences (CCB), State University of Maringá (UEM), Maringá, Brazil
| | - Gustavo Q Romero
- Laboratory of Multitrophic Interactions and Biodiversity, Department of Animal Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Thadeu Sobral-Souza
- Department of Botany and Ecology, Institute of Bioscience, Federal University of Mato Grosso, Cuiabá, Brazil
| | - Bradley J Cardinale
- Department of Ecosystem Science and Management, Penn State University, University Park, PA, USA
| | - Pavel Kratina
- School of Biological and Behavioural Sciences, Queen Mary University of London, London, UK
| | - Daniel M Perkins
- School of Life and Health Sciences, University of Roehampton, Whitelands College, London, UK
| | - Franco Teixeira de Mello
- Departamento de Ecología y Gestión Ambiental CURE, Universidad de la República, Maldonado, Uruguay
| | - Erik Jeppesen
- Department of Ecoscience and WATEC, Aarhus University, Aarhus C, Denmark.,Sino-Danish Centre for Education and Research, Beijing, China.,Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara, Turkey.,Institute of Marine Sciences, Middle East Technical University, Erdemli-Mersin, Turkey
| | - Jani Heino
- Freshwater Centre, Finnish Environment Institute, Oulu, Finland
| | - Fábio A Lansac-Tôha
- Department of Biology (DBI), Center of Biological Sciences (CCB), State University of Maringá (UEM), Maringá, Brazil.,Research Centre in Limnology, Ichthyology and Aquaculture (NUPÉLIA), Centre of Biological Sciences (CCB), State University of Maringá (UEM), Maringá, Brazil
| | - Luiz F M Velho
- Department of Biology (DBI), Center of Biological Sciences (CCB), State University of Maringá (UEM), Maringá, Brazil.,Research Centre in Limnology, Ichthyology and Aquaculture (NUPÉLIA), Centre of Biological Sciences (CCB), State University of Maringá (UEM), Maringá, Brazil.,UniCesumar/ICETI, Maringá, Brazil
| | - Roger P Mormul
- Department of Biology (DBI), Center of Biological Sciences (CCB), State University of Maringá (UEM), Maringá, Brazil.,Research Centre in Limnology, Ichthyology and Aquaculture (NUPÉLIA), Centre of Biological Sciences (CCB), State University of Maringá (UEM), Maringá, Brazil
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33
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Orwin KH, Mason NWH, Berthet ET, Grelet G, Mudge P, Lavorel S. Integrating design and ecological theory to achieve adaptive diverse pastures. Trends Ecol Evol 2022; 37:861-871. [PMID: 35842324 DOI: 10.1016/j.tree.2022.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 06/10/2022] [Accepted: 06/14/2022] [Indexed: 11/25/2022]
Abstract
Increasing plant diversity is often suggested as a way of overcoming some of the challenges faced by managers of intensive pasture systems, but it is unclear how to design the most suitable plant mixtures. Using innovative design theory, we identify two conceptual shifts that foster potentially beneficial design approaches. Firstly, reframing the goal of mixture design to supporting ecological integrity, rather than delivering lists of desired outcomes, leads to flexible design approaches that support context-specific solutions that should operate within identifiable ecological limits. Secondly, embracing, rather than minimising uncertainty in performance leads to adaptive approaches that could enhance current and future benefits of diversifying pasture. These two fundamental shifts could therefore accelerate the successful redesign of intensive pastures.
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Affiliation(s)
- Kate H Orwin
- Manaaki Whenua - Landcare Research, Lincoln 7640, New Zealand.
| | | | - Elsa T Berthet
- Université Paris-Saclay, INRAE, AgroParisTech, UMR SADAPT, 75231 Paris, France; USC 1339, Centre d'Etudes Biologiques de Chizé, INRAE, 79360 Villiers-en-Bois, France
| | - Gwen Grelet
- Manaaki Whenua - Landcare Research, Lincoln 7640, New Zealand
| | - Paul Mudge
- Manaaki Whenua - Landcare Research, Hamilton 3240, New Zealand
| | - Sandra Lavorel
- Manaaki Whenua - Landcare Research, Lincoln 7640, New Zealand; Université Grenoble Alpes, CNRS, Université Savoie Mont-Blanc, CNRS, Laboratoire d'Ecologie Alpine, 38000 Grenoble, France
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34
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Luo YH, Cadotte MW, Liu J, Burgess KS, Tan SL, Ye LJ, Zou JY, Chen ZZ, Jiang XL, Li J, Xu K, Li DZ, Gao LM. Multitrophic diversity and biotic associations influence subalpine forest ecosystem multifunctionality. Ecology 2022; 103:e3745. [PMID: 35522230 DOI: 10.1002/ecy.3745] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/12/2022] [Accepted: 04/04/2022] [Indexed: 11/06/2022]
Abstract
Biodiversity across multiple trophic levels is required to maintain multiple ecosystem functions. Yet, it remains unclear how multitrophic diversity and species interactions regulate ecosystem multifunctionality. Here, combining data from nine different trophic groups (including trees, shrubs, herbs, leaf mites, small mammals, bacteria, pathogenic fungi, saprophytic fungi and symbiotic fungi) and 13 ecosystem functions related to supporting, provisioning and regulating services, we used a multitrophic perspective to evaluate the effects of elevation, diversity and network complexity on scale-dependent subalpine forest multifunctionality. Our results demonstrate that elevation and soil pH significantly modified species composition and richness across multitrophic groups and influenced multiple functions simultaneously. We provide evidence that species richness across multiple trophic groups had stronger effects on multifunctionality than species richness at any single trophic level. Moreover, biotic associations, indicating the complexity of trophic networks, were positively associated with multifunctionality. The relative effects of diversity on multifunctionality increased at the scale of the larger community compared to a scale accounting for neighbouring interactions. Our results highlight the paramount importance of scale- and context- dependent multitrophic diversity and interactions for a better understanding of mountain ecosystem multifunctionality in a changing world. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ya-Huang Luo
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China.,Germplasm Bank of Wild Species in Southwest China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China.,Lijiang Forest Biodiversity National Observation and Research Station, Kunming Institute of Botany, Chinese Academy of Sciences, Lijiang, Yunnan, China
| | - Marc W Cadotte
- Biological Sciences, University of Toronto-Scarborough, 1265 Military Trail, Toronto, ON, Canada
| | - Jie Liu
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Kevin S Burgess
- Department of Biology, College of Letters & Sciences, Columbus State University, University System of Georgia, Columbus, GA, USA
| | - Shao-Lin Tan
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Lin-Jiang Ye
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jia-Yun Zou
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Zhong-Zheng Chen
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China.,School of Ecology and Environment, Anhui Normal University, Wuhu, Anhui, China
| | - Xue-Long Jiang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Juan Li
- Institute of Entomology, Provincial Key Laboratory for Plant Pest Management of Mountainous Region, Guizhou University, Guiyang, Guizhou, China
| | - Kun Xu
- Lijiang Forest Biodiversity National Observation and Research Station, Kunming Institute of Botany, Chinese Academy of Sciences, Lijiang, Yunnan, China
| | - De-Zhu Li
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China.,Germplasm Bank of Wild Species in Southwest China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Lian-Ming Gao
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China.,Lijiang Forest Biodiversity National Observation and Research Station, Kunming Institute of Botany, Chinese Academy of Sciences, Lijiang, Yunnan, China
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35
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Stefanowicz AM, Kapusta P, Stanek M, Rola K, Zubek S. Herbaceous plant species support soil microbial performance in deciduous temperate forests. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 810:151313. [PMID: 34756898 DOI: 10.1016/j.scitotenv.2021.151313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/20/2021] [Accepted: 10/25/2021] [Indexed: 06/13/2023]
Abstract
Although herbaceous plant layer may contribute significantly to plant diversity and nutrient turnover, its effects on the soil environment in forest ecosystems remain largely unexplored. In this study, we compared the effects of mono-dominant and multi-species assemblages of herb plants on soil physicochemical and microbial properties in two temperate deciduous (beech and riparian) forests. We hypothesized that the presence of herbaceous plants would increase microbial activity and biomass, and nutrient availability in soil when compared to bare soil. This increase would be the highest in multi-species assemblages as high plant diversity supports microbial performance and soil processes, and the expected patterns would be essentially similar in both forests. Allium ursinum L. and Dentaria enneaphyllos L. represented herb species forming mono-dominant patches in beech forest, while Aegopodium podagraria L. and Ficaria verna Huds. represented herb species forming mono-dominant patches in riparian forest. Our hypotheses were only partly supported by the data. We found that herb plant species affected soil microbial communities and processes, particularly in the riparian forest, but they generally did not influence soil physicochemical properties. In the beech forest, herbaceous plants increased saprotrophic fungi biomass, fungi/bacteria ratio, and arylsulfatase activity, with the highest values under D. enneaphyllos. In the riparian forest, a number of microbial parameters, namely bacteria, G+ bacteria, and saprotrophic fungi biomass, fungi/bacteria ratio, and soil respiration exhibited the lowest values in bare soil and the highest values in soil under A. podagraria. Contrary to expectations, soils under multi-species assemblages were characterized by intermediate values of microbial parameters. Concluding, herbaceous plant species largely supported soil microbial communities in deciduous temperate forests but did not affect soil chemical properties. The potential reasons for the positive influence of herb plants on soil microbes (litterfall, rhizodeposition) require further investigation.
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Affiliation(s)
- Anna M Stefanowicz
- W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Kraków, Poland.
| | - Paweł Kapusta
- W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Kraków, Poland.
| | - Małgorzata Stanek
- W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Kraków, Poland.
| | - Kaja Rola
- Institute of Botany, Faculty of Biology, Jagiellonian University, Gronostajowa 3, 30-387 Kraków, Poland.
| | - Szymon Zubek
- Institute of Botany, Faculty of Biology, Jagiellonian University, Gronostajowa 3, 30-387 Kraków, Poland.
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36
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Do Spatially Structured Soil Variables Influence the Plant Diversity in Tabuk Arid Region, Saudi Arabia? SUSTAINABILITY 2022. [DOI: 10.3390/su14052611] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Plant diversity is affected by spatial variables as well as soil physical and chemical variables. In this study, plant species and soil variables were investigated in five sites of Tabuk Province (Saudi Arabia), namely Aldesah, Alzetah, Alawz, Harra and Sharma, to understand if the spatially structured soil variables (pH, electric conductivity (EC), soil texture, calcium, potassium, phosphorus, phosphate, total organic matter (OM), bicarbonate and sodium) influence the plant diversity. A total of 163 plant species belong to 41 families and 124 genera were reported from the 5 sites. Diversity indices including the species richness (alpha), evenness, Brillouin, Menhinick, Margalef, equitability and estimated Chao-1 were significantly different among the studied sites with pronounced high values in Sharma and Aldesah. The highest value of beta diversity was reported in Aldesah (0.253) followed by Sharma (0.171). According to the principal coordinates of neighbourhood matrix (PCNM) analysis, 11 positive spatial vectors (variables) were found. However, after running the forward selection procedures (using 2 stopping criteria), only 3 spatial vectors were retained (PCNM 1 (adj–R2 = 0.043, F = 5.201, p = 0.004), PCNM 2 (adj–R2 = 0.027, F = 3.97, p = 0.006) and PCNM 3 (adj–R2 = 0.019, F = 3.36, p = 0.007)). The linear models between the selected spatial variables (PCNM vectors) and soil variables were produced to investigate their spatial structure. In the first model, the first PCNM 1 axis showed significant relationship with pH and potassium (adj–R2 = 0.175, p = 0.046). In the second model, the second PCNM 2 axis had a significant relationship with OM and sodium (adj–R2 = 0.561, p < 0.001). Lastly, sodium was the only factor significantly correlated with the third PCNM 3 axis (adj–R2 = 0.365, p = 0.002). In conclusion, the spatially structured variables of soil did not show strong influence on plant diversity except pH and potassium, which were correlated with PCNM 1, OM and sodium, which were correlated with PCNM 2, and sodium, which was correlated with PCNM 3.
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37
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Zhou Z, Zheng M, Xia J, Wang C. Nitrogen addition promotes soil microbial beta diversity and the stochastic assembly. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150569. [PMID: 34597552 DOI: 10.1016/j.scitotenv.2021.150569] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/17/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
Nitrogen (N) deposition is one of major environmental concerns and alters the microbial communities in the pedosphere. A central debate in governing microbial community is on the relative importance of deterministic (ecological selection) vs. stochastic processes (dispersal, drift, diversification or speciation), which consequently limited our understanding of microbial assembly in response to N addition. Here, we conducted a global analysis of high-throughput sequencing data to reveal the mechanisms of N-addition effects on soil microbial communities. The results show that N addition significantly shifted the microbial community structure and promoted microbial beta diversity, particularly in the N-limited ecosystems. Changes in microbial structure and beta diversity increased significantly as the N addition rate, study duration, and the degree of soil acidification increased. The stochastic processes are more important than the deterministic processes for microbial community assembly, while N addition significantly increase the importance of stochastic processes whether the phylogenetic relationship is considered or not. Overall, the current study highlights the important of ecological stochasticity in regulating microbial assembly under N deposition scenarios.
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Affiliation(s)
- Zhenghu Zhou
- Center for Ecological Research, Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Mianhai Zheng
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Jianyang Xia
- Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, State Key Laboratory of Estuarine and Coastal Research, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Chuankuan Wang
- Center for Ecological Research, Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China.
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Auffret AG, Ekholm A, Hämäläinen A, Jonsell M, Lehto C, Nordkvist M, Öckinger E, Torstensson P, Viketoft M, Thor G. Can field botany be effectively taught as a distance course? Experiences and reflections from the COVID-19 pandemic. AOB PLANTS 2022; 14:plab079. [PMID: 35035870 PMCID: PMC8757578 DOI: 10.1093/aobpla/plab079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
The COVID-19 pandemic that started in 2020 forced a rapid change in university teaching, with large numbers of courses switching to distance learning with very little time for preparation. Courses involving many practical elements and field excursions required particular care if students were to fulfil planned learning outcomes. Here, we present our experiences in teaching field botany in 2020 and 2021. Using a range of methods and tools to introduce students to the subject, promote self-learning and reflection and give rapid and regular feedback, we were able to produce a course that allowed students to achieve the intended learning outcomes and that obtained similarly positive student evaluations to previous years. The course and its outcomes were further improved in 2021. We describe how we structured field botany as a distance course in order that we could give the best possible learning experience for the students. Finally, we reflect on how digital tools can aid teaching such subjects in the future, in a world where public knowledge of natural history is declining.
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Affiliation(s)
- Alistair G Auffret
- Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Adam Ekholm
- Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Aino Hämäläinen
- Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Mats Jonsell
- Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Carl Lehto
- Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Michelle Nordkvist
- Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Erik Öckinger
- Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Peter Torstensson
- Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Maria Viketoft
- Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
| | - Göran Thor
- Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
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Bai L, Wang Z, Lu Y, Tian J, Peng Y. Monthly rather than annual climate variation determines plant diversity change in four temperate grassland nature reserves. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:10357-10365. [PMID: 34523091 DOI: 10.1007/s11356-021-16473-y] [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: 08/25/2020] [Accepted: 09/05/2021] [Indexed: 06/13/2023]
Abstract
Plant diversity is changing in the world; climate variation at annual scale is believed to drive these changes; however, the effects of climate variation at month scale are still unknown. Anxi, West Ordos, Xilingol, and Tumuji grassland nature reserves, located in northern China, have been well protected from human disturbance, are ideal areas to identify the drive forces for plant diversity change. Using Landsat images from 1982 to 2017, we analyzed the evolution of month- and annual-climate variables and spectral plant diversity indices, and explored the effects of the variability of temperature and precipitation on plant diversity and their relationship. The results showed that the diversity of the four grasslands was decreasing. Climate variables, in particular temperature at month scale, significantly related to grassland plant diversity. These results enlarge our understanding in how climate change driving plant diversity during a long term. Measurements coping with plant diversity decreasing may be more effective and earlier based on monthly climate variables.
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Affiliation(s)
- Lan Bai
- College of Life and Environmental Sciences, Minzu University of China, No. 27 Zhongguancun South Street, Haidian District, Beijing, 100081, China
| | - Zhaohua Wang
- College of Life and Environmental Sciences, Minzu University of China, No. 27 Zhongguancun South Street, Haidian District, Beijing, 100081, China
| | - Yitong Lu
- College of Life and Environmental Sciences, Minzu University of China, No. 27 Zhongguancun South Street, Haidian District, Beijing, 100081, China
| | - Jialing Tian
- College of Life and Environmental Sciences, Minzu University of China, No. 27 Zhongguancun South Street, Haidian District, Beijing, 100081, China
| | - Yu Peng
- College of Life and Environmental Sciences, Minzu University of China, No. 27 Zhongguancun South Street, Haidian District, Beijing, 100081, China.
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40
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Podgaiski LR, Guimarães GDC, Dröse W, Pereira Almerão M. Ants benefit from the Japanese raisin tree invasion and favor its invasiveness in the subtropical Atlantic Rainforest. Biotropica 2022. [DOI: 10.1111/btp.13061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | | | - William Dröse
- Departamento de Botânica Universidade Federal do Rio Grande do Sul Porto Alegre Brasil
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41
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Wisnoski NI, Shoemaker LG. Seed banks alter metacommunity diversity: The interactive effects of competition, dispersal and dormancy. Ecol Lett 2021; 25:740-753. [PMID: 34965013 DOI: 10.1111/ele.13944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 11/10/2021] [Accepted: 11/24/2021] [Indexed: 01/12/2023]
Abstract
Dispersal and dormancy are two common strategies allowing for species persistence and the maintenance of biodiversity in variable environments. However, theory and empirical tests of spatial diversity patterns tend to examine either mechanism in isolation. Here, we developed a stochastic, spatially explicit metacommunity model incorporating seed banks with varying germination and survival rates. We found that dormancy and dispersal had interactive, nonlinear effects on the maintenance and distribution of metacommunity diversity. Seed banks promoted local diversity when seed survival was high and maintained regional diversity through interactions with dispersal. The benefits of seed banks for regional diversity were largest when dispersal was high or intermediate, depending on whether local competition was equal or stabilising. Our study shows that classic predictions for how dispersal affects metacommunity diversity can be strongly influenced by dormancy. Together, these results emphasise the need to consider both temporal and spatial processes when predicting multi-scale patterns of diversity.
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Affiliation(s)
- Nathan I Wisnoski
- Wyoming Geographic Information Science Center, University of Wyoming, Laramie, Wyoming, USA
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42
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Spatial Differentiation of Non-Grain Production on Cultivated Land and Its Driving Factors in Coastal China. SUSTAINABILITY 2021. [DOI: 10.3390/su132313064] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The rapid development of urbanization and industrialization in coastal China in the past 20 years has exerted a huge squeezing effect on agricultural land use. The phenomenon of non-grain production on cultivated land (NGP) is very common, seriously threatening the protection of high-quality arable land and national food security. In order to find out the overall situation regarding NGP on cultivated land in coastal China, this study revealed the spatial differentiation of NGP and its main driving factors by spatial autocorrelation analysis, multiple linear regression models and geographically weighted regression analysis (GWR). The results show that: (1) in 2018, the non-grain cultivated land area of 11 provinces along the coast of China was about 15.82 × 106 hm2, accounting for 33.65% of the total cultivated land area. (2) The NGP rate in 11 provinces gradually decreased from south to north, but the NGP area showed two peak centers in Guangxi province and Shandong province, then decreased gradually outwards. (3) The low economic benefit of the planting industry (per capita GDP and urban-to-rural disposable income ratio) was the most important driving force, leading to the spatial differentiation of NGP, while the number of rural laborers and land transfer areas also acted as the main driving factors for the spatial differentiation of NGP. However, the influence of each driving factor has obvious spatial heterogeneity. The non-grained area and the non-grain production rate at the municipal level were completely different from those at the provincial level, and the spatial heterogeneity was more prominent. In the future, the local government should control the disorganized spread of NGP, scientifically set the bottom line of NGP, reduce the external pressure of NGP, regulate multi-party land transfer behavior, and strengthen land-use responsibilities. This study can provide a scientific foundation for adjusting land-use planning and cultivated land protection policies in China and other developing countries.
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43
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Paudel S, Cobb AB, Boughton EH, Spiegal S, Boughton RK, Silveira ML, Swain HM, Reuter R, Goodman LE, Steiner JL. A framework for sustainable management of ecosystem services and disservices in perennial grassland agroecosystems. Ecosphere 2021. [DOI: 10.1002/ecs2.3837] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Affiliation(s)
- Shishir Paudel
- Department of Natural Resource Ecology and Management Oklahoma State University Stillwater Oklahoma 74078 USA
- Phipps Conservatory and Botanical Gardens Pittsburgh Pennsylvania 15213 USA
| | - Adam B. Cobb
- Department of Natural Resource Ecology and Management Oklahoma State University Stillwater Oklahoma 74078 USA
| | | | - Sheri Spiegal
- US Department of Agriculture–Agriculture Research Service (USDA‐ARS) Jornada Experimental Range Las Cruces New Mexico 88003 USA
| | - Raoul K. Boughton
- Range Cattle Research and Education Center University of Florida 3401 Experiment Station Ona Florida 33865 USA
| | - Maria L. Silveira
- Range Cattle Research and Education Center University of Florida 3401 Experiment Station Ona Florida 33865 USA
| | | | - Ryan Reuter
- Department of Animal Science Oklahoma State University Stillwater Oklahoma 74078 USA
| | - Laura E. Goodman
- Department of Natural Resource Ecology and Management Oklahoma State University Stillwater Oklahoma 74078 USA
| | - Jean L. Steiner
- Grazinglands Research Laboratory USDA‐ARS El Reno Oklahoma 73036 USA
- Department of Agronomy Kansas State University Manhattan Kansas 66502 USA
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Environmental risk in an age of biotic impoverishment. Curr Biol 2021; 31:R1164-R1169. [PMID: 34637723 DOI: 10.1016/j.cub.2021.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The science underpinning biodiversity's importance to human well-being seems to be taken up little by environmental decision makers. Since the 1950s, ecological, evolutionary and environmental research has pointed to the importance of biodiversity as a significant factor influencing the stability and functioning of population, community, eco- and Earth-systems and the environmental services they provide. Despite its prominence and the tremendous contributions to our understanding of the natural world, this field of research, which we term 'bio-functional ecology', seems not to have had the impact it should. Biotic impoverishment, the loss of biodiversity across all scales and across all taxa, continues to worsen. We suggest that redirecting ecology's emphasis on ecological stability to a focus on environmental risk could help bring bio-functional ecology research more into the environmental arena. Rather than managing biodiversity as an agent of ecological stability, biodiversity could be managed as a natural capital asset in a portfolio of social, human, produced and financial capital assets. This would allow using portfolio theory to identify options for minimizing environmental risk while ensuring human well-being. In this essay, we argue that environmental risk more accurately captures people's motivation to preserve and manage biodiversity than does ecological stability. This redirection from stability to risk may provide greater clarity for decision makers and people in general as to why biodiversity is fundamentally linked to human well-being. In doing so, we can help curb the currently unabated spread of biotic impoverishment across the biosphere.
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Marcacci G, Westphal C, Wenzel A, Raj V, Nölke N, Tscharntke T, Grass I. Taxonomic and functional homogenization of farmland birds along an urbanization gradient in a tropical megacity. GLOBAL CHANGE BIOLOGY 2021; 27:4980-4994. [PMID: 34157186 DOI: 10.1111/gcb.15755] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 06/09/2021] [Indexed: 06/13/2023]
Abstract
Urbanization is a major driver of land use change and biodiversity decline. While most of the ongoing and future urbanization hotspots are located in the Global South, the impact of urban expansion on agricultural biodiversity and associated functions and services in these regions has widely been neglected. Additionally, most studies assess biodiversity responses at local scale (α-diversity), however, ecosystem functioning is strongly determined by compositional and functional turnover of communities (β-diversity) at regional scales. We investigated taxonomic and functional β-diversity of farmland birds across three seasons on 36 vegetable farms spread along a continuous urbanization gradient in Bangalore, a South Indian megacity. Increasing amount of grey area in the farm surroundings was the dominant driver affecting β-diversity and resulting in taxonomic and functional homogenization of farmland bird communities. Functional diversity losses were higher than expected from species declines (i.e., urbanization acts as an environmental filter), with particular losses of functionally important groups such as insectivores of crop pests. Moreover, urbanization reduced functional redundancy of bird communities, which may further weaken ecosystems resilience to future perturbations. Our study underscores urbanization as a major driver of taxonomic and functional homogenization of species communities in agricultural systems, potentially threatening crucial ecosystem services for food production.
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Affiliation(s)
- Gabriel Marcacci
- Functional Agrobiodiversity, University of Göttingen, Göttingen, Germany
| | - Catrin Westphal
- Functional Agrobiodiversity, University of Göttingen, Göttingen, Germany
- Centre of Biodiversity and Sustainable Land Use (CBL), University of Göttingen, Göttingen, Germany
| | - Arne Wenzel
- Functional Agrobiodiversity, University of Göttingen, Göttingen, Germany
| | - Varsha Raj
- Agricultural Entomology, University of Agricultural Sciences, GKVK, Bangalore, India
| | - Nils Nölke
- Forest Inventory and Remote Sensing, Faculty of Forest Sciences and Forest Ecology, University of Göttingen, Göttingen, Germany
| | - Teja Tscharntke
- Centre of Biodiversity and Sustainable Land Use (CBL), University of Göttingen, Göttingen, Germany
- Agroecology, University of Göttingen, Göttingen, Germany
| | - Ingo Grass
- Institute of Agricultural Sciences in the Tropics, Department of Ecology of Tropical Agricultural Systems, University of Hohenheim, Stuttgart, Germany
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Lamy T, Wisnoski NI, Andrade R, Castorani MCN, Compagnoni A, Lany N, Marazzi L, Record S, Swan CM, Tonkin JD, Voelker N, Wang S, Zarnetske PL, Sokol ER. The dual nature of metacommunity variability. OIKOS 2021. [DOI: 10.1111/oik.08517] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thomas Lamy
- Marine Science Inst., Univ. of California Santa Barbara CA USA
- MARBEC, Univ. of Montpellier, CNRS, Ifremer, IRD Sète France
| | - Nathan I. Wisnoski
- Dept of Biology, Indiana Univ. Bloomington IN USA
- WyGISC, Univ. of Wyoming Laramie WY USA
| | - Riley Andrade
- Dept of Wildlife Ecology and Conservation, Univ. of Florida Gainesville FL USA
- Dept of Natural Resources and Environmental Sciences, Univ. of Illinois at Urbana – Champaign Urbana IL USA
| | | | - Aldo Compagnoni
- Martin Luther Univ. Halle‐Wittenberg Halle (Saale) Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
| | - Nina Lany
- Dept of Forestry, Michigan State Univ. East Lansing MI USA
- Ecology, Evolution and Behavior Program, Michigan State Univ. East Lansing MI USA
| | - Luca Marazzi
- Inst. of Environment, Florida International Univ. Miami FL USA
| | - Sydne Record
- Dept of Biology, Bryn Mawr College Bryn Mawr PA USA
| | - Christopher M. Swan
- Dept of Geography and Environmental Systems, Univ. of Maryland, Baltimore County Baltimore MD USA
| | - Jonathan D. Tonkin
- Dept of Integrative Biology, Oregon State Univ. OR USA
- School of Biological Sciences, Univ. of Canterbury Christchurch New Zealand
| | - Nicole Voelker
- Dept of Geography and Environmental Systems, Univ. of Maryland, Baltimore County Baltimore MD USA
| | - Shaopeng Wang
- Key Laboratory for Earth Surface Processes of the Ministry of Education, Inst. of Ecology, College of Urban and Environmental Sciences, Peking Univ. Beijing China
| | - Phoebe L. Zarnetske
- Ecology, Evolution and Behavior Program, Michigan State Univ. East Lansing MI USA
- Dept of Integrative Biology, Michigan State Univ. East Lansing MI USA
| | - Eric R. Sokol
- Inst. of Arctic and Alpine Research (INSTAAR), Univ. of Colorado Boulder Boulder CO USA
- Battelle, National Ecological Observatory Network (NEON) Boulder CO USA
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47
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Jing X, Prager CM, Borer ET, Gotelli NJ, Gruner DS, He J, Kirkman K, MacDougall AS, McCulley RL, Prober SM, Seabloom EW, Stevens CJ, Classen AT, Sanders NJ. Spatial turnover of multiple ecosystem functions is more associated with plant than soil microbial β‐diversity. Ecosphere 2021. [DOI: 10.1002/ecs2.3644] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Xin Jing
- Natural History Museum of Denmark Copenhagen Denmark
| | - Case M. Prager
- Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor Michigan 48109 USA
| | - Elizabeth T. Borer
- Department of Ecology, Evolution and Behavior University of Minnesota St. Paul Minnesota 55108 USA
| | | | - Daniel S. Gruner
- Department of Entomology University of Maryland College Park Maryland 20742 USA
| | - Jin‐Sheng He
- College of Urban and Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education Institute of Ecology Peking University Beijing 100871 China
- State Key Laboratory of Grassland Agro‐Ecosystems, and College of Pastoral Agriculture Science and Technology Lanzhou University Lanzhou Gansu 730000 China
| | - Kevin Kirkman
- Centre for Functional Biodiversity School of Life Sciences University of KwaZulu‐Natal Pietermaritzburg South Africa
| | - Andrew S. MacDougall
- Department of Integrative Biology University of Guelph Guelph Ontario N1G 2W1 Canada
| | - Rebecca L. McCulley
- Department of Plant & Soil Sciences University of Kentucky Lexington Kentucky 40546‐0312 USA
| | - Suzanne M. Prober
- CSIRO Land and Water Private Bag 5 Wembley Western Australia 6913 Australia
| | - Eric W. Seabloom
- Department of Ecology, Evolution and Behavior University of Minnesota St. Paul Minnesota 55108 USA
| | - Carly J. Stevens
- Lancaster Environment Centre Lancaster University Lancaster LA1 4YQ UK
| | - Aimée T. Classen
- Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor Michigan 48109 USA
| | - Nathan J. Sanders
- Natural History Museum of Denmark Copenhagen Denmark
- Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor Michigan 48109 USA
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Yi S, Wu P, Peng X, Tang Z, Bai F, Sun X, Gao Y, Qin H, Yu X, Wang R, Du N, Guo W. Biodiversity, environmental context and structural attributes as drivers of aboveground biomass in shrublands at the middle and lower reaches of the Yellow River basin. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 774:145198. [PMID: 33611007 DOI: 10.1016/j.scitotenv.2021.145198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/11/2021] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Biodiversity-biomass relationships have been debated for decades and remain subject to controversy. Understanding the relationship between biodiversity and biomass will be crucial for soil and water conservation of the whole basin of the Yellow River. The positive effects of biodiversity on aboveground biomass are altered via two fundamental mechanisms-niche complementarity and selection effects-and are modulated by environmental context and community structure in natural communities. Most studies of biodiversity-biomass relationships have focused on grasslands and forests, rather than on shrublands. We combine multiple biotic variables (biodiversity, functional identity and community structural attributes) and environmental context with aboveground biomass across shrubland habitat types (temperate hilly, temperate montane and subtropical montane) at neighbourhood and community spatial scales, to evaluate the effects of these factors on shrubland aboveground biomass, in the Yellow River basin. We found aboveground biomass was influenced primarily by the community-weighted mean plant maximum height, followed by species richness and community-weighted mean specific leaf area. Furthermore, individual plant size inequality, mean annual precipitation and water availability either directly or indirectly influenced aboveground biomass. The biodiversity-aboveground biomass relationship was stronger at the broader spatial scale. Thus, our findings indicate that both niche complementarity and selection effects shape the effects of biodiversity on shrubland aboveground biomass, although selection effects are more important. Moreover, they indicate that water is the most important environmental factor for determining aboveground biomass, and suggest that community structure and spatial scale could influence shrubland aboveground biomass and its response to biodiversity.
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Affiliation(s)
- Shijie Yi
- Institute of Ecology and Biodiversity, Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Pan Wu
- Institute of Ecology and Biodiversity, Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Xiqiang Peng
- Institute of Ecology and Biodiversity, Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Zhiyao Tang
- Institute of Ecology, College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes, Peking University, Beijing 100871, China
| | - Fenghua Bai
- Nanjing Guohuan Science and Technology Co., Ltd., Nanjing 210042, China
| | - Xinke Sun
- Institute of Ecology and Biodiversity, Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Yanan Gao
- College of Marine Life Sciences, Ocean University of China, Qingdao 266100, China
| | - Huiying Qin
- Institute of Ecology and Biodiversity, Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Xiaona Yu
- Institute of Ecology and Biodiversity, Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Renqing Wang
- Institute of Ecology and Biodiversity, Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Ning Du
- Institute of Ecology and Biodiversity, Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, School of Life Sciences, Shandong University, Qingdao 266237, China.
| | - Weihua Guo
- Institute of Ecology and Biodiversity, Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, School of Life Sciences, Shandong University, Qingdao 266237, China.
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49
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Moi DA, Alves DC, Figueiredo BRS, Antiqueira PAP, Teixeira de Mello F, Jeppesen E, Romero GQ, Mormul RP, Bonecker CC. Non-native fishes homogenize native fish communities and reduce ecosystem multifunctionality in tropical lakes over 16 years. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 769:144524. [PMID: 33482541 DOI: 10.1016/j.scitotenv.2020.144524] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/11/2020] [Accepted: 12/12/2020] [Indexed: 06/12/2023]
Abstract
Non-native species are considered a major global threat to biodiversity, and their expansion to new ecosystems has recently increased. However, the effect of non-native species on ecosystem functioning is poorly understood, especially in hyperdiverse tropical ecosystems of which long-term studies are scarce. We analyzed the relationship between richness, biomass, and β-diversity of non-native and native fishes during 16 years in five hyperdiverse tropical shallow lakes. We further elucidated how an observed increase in the proportion of richness, biomass, and β-diversity of non-native over native fishes affect crucial multifunctional processes of lakes (decomposition, productivity). We found a general positive relationship between the richness and biomass of non-native and native fishes. However, the slope of this relationship decreased continuously with time, displaying an increase in non-native species richness and a decrease in native species richness over time. We also detected a negative relationship between the β-diversity of non-native and native fishes over time. Moreover, the increase in the non-native:native ratio of species richness, biomass, and β-diversity over time decreased ecosystem multifunctionality. Our results suggest that non-native fishes caused a homogenization of the native fish species over time, resulting in impoverishment of ecosystem multifunctionality; in part because non-native fishes are less productive than native ones. Therefore, focus on long-term effects and use of multiple biodiversity facets (α- and β-diversity) are crucial to make reliable predictions of the effects of non-native fish species on native fishes and ecosystem functioning.
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Affiliation(s)
- Dieison André Moi
- Department of Biology, Graduate Program in Ecology of Inland Waters, Nupelia, University of Maringá, Jd. Universitário, Maringá, PR 87020-900, Brazil.
| | - Diego Corrêa Alves
- Department of Biology, Graduate Program in Ecology of Inland Waters, Nupelia, University of Maringá, Jd. Universitário, Maringá, PR 87020-900, Brazil
| | | | - Pablo Augusto Poleto Antiqueira
- Laboratory of Multitrophic Interactions and Biodiversity, Department of Animal Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP 13083-862, Brazil
| | - Franco Teixeira de Mello
- Departamento de Ecología y Gestión Ambiental CURE, Universidad de la República, Tacuarembó s/n, Maldonado, Uruguay
| | - Erik Jeppesen
- Department of Bioscience, Aarhus University, Vejlsøvej 25, 8600 Silkeborg, Denmark; Sino-Danish Centre for Education and Research (SDC), University of Chinese Academy of Sciences, Beijing, China; Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara, Turkey; Institute of Marine Sciences, Middle East Technical University, Mersin, Turkey
| | - Gustavo Quevedo Romero
- Laboratory of Multitrophic Interactions and Biodiversity, Department of Animal Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP 13083-862, Brazil
| | - Roger Paulo Mormul
- Department of Biology, Graduate Program in Ecology of Inland Waters, Nupelia, University of Maringá, Jd. Universitário, Maringá, PR 87020-900, Brazil
| | - Claudia Costa Bonecker
- Department of Biology, Graduate Program in Ecology of Inland Waters, Nupelia, University of Maringá, Jd. Universitário, Maringá, PR 87020-900, Brazil
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Functional diversity, functional composition and functional β diversity drive aboveground biomass across different bioclimatic rangelands. Basic Appl Ecol 2021. [DOI: 10.1016/j.baae.2021.01.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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