globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.14314
Scopus记录号: 2-s2.0-85049501826
论文题名:
Environmental change and predator diversity drive alpha and beta diversity in freshwater macro and microorganisms
作者: Antiqueira P.A.P.; Petchey O.L.; dos Santos V.P.; de Oliveira V.; Romero G.Q.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期:8
起始页码: 3715
结束页码: 3728
语种: 英语
英文关键词: beta diversity ; biodiversity ; climate change ; habitat size ; predator diversity ; tank-bromeliad
Scopus关键词: climate change ; environmental change ; freshwater ecosystem ; habitat structure ; human activity ; microorganism ; predator ; species diversity ; Bacteria (microorganisms)
英文摘要: Global biodiversity is eroding due to anthropogenic causes, such as climate change, habitat loss, and trophic simplification of biological communities. Most studies address only isolated causes within a single group of organisms; however, biological groups of different trophic levels may respond in particular ways to different environmental impacts. Our study used natural microcosms to investigate the predicted individual and interactive effects of warming, changes in top predator diversity, and habitat size on the alpha and beta diversity of macrofauna, microfauna, and bacteria. Alpha diversity (i.e., richness within each bromeliad) generally explained a larger proportion of the gamma diversity (partitioned in alpha and beta diversity). Overall, dissimilarity between communities occurred due to species turnover and not species loss (nestedness). Nevertheless, the three biological groups responded differently to each environmental stressor. Microfauna were the most sensitive group, with alpha and beta diversity being affected by environmental changes (warming and habitat size) and trophic structure (diversity of top predators). Macrofauna alpha and beta diversity was sensitive to changes in predator diversity and habitat size, but not warming. In contrast, the bacterial community was not influenced by the treatments. The community of each biological group was not mutually concordant with the environmental and trophic changes. Our results demonstrate that distinct anthropogenic impacts differentially affect the components of macro and microorganism diversity through direct and indirect effects (i.e., bottom-up and top-down effects). Therefore, a multitrophic and multispecies approach is necessary to assess the effects of different anthropogenic impacts on biodiversity. © 2018 John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110292
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Programa de Pós-Graduação em Ecologia, Instituto de Biologia (IB), Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil; Laboratory of Multitrophic Interactions and Biodiversity, Institute of Biology, University of Campinas, Campinas, SP, Brazil; Department for Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland; Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas, Paulínia, SP, Brazil; Departamento de Biologia Animal, Instituto de Biologia (IB), Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil; Brazilian Research Network on Climate Change (Rede Clima), São Paulo, Brazil

Recommended Citation:
Antiqueira P.A.P.,Petchey O.L.,dos Santos V.P.,et al. Environmental change and predator diversity drive alpha and beta diversity in freshwater macro and microorganisms[J]. Global Change Biology,2018-01-01,24(8)
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