气候变化领域集成服务门户(CCPortal): Species richness and food-web structure jointly drive community biomass and its temporal stability in fish communities

CCPortal

DOI	10.1111/ele.13857
	Species richness and food-web structure jointly drive community biomass and its temporal stability in fish communities
	Danet A.; Mouchet M.; Bonnaffé W.; Thébault E.; Fontaine C.
发表日期	2021
ISSN	1461023X
英文摘要	Biodiversity–ecosystem functioning and food-web complexity–stability relationships are central to ecology. However, they remain largely untested in natural contexts. Here, we estimated the links among environmental conditions, richness, food-web structure, annual biomass and its temporal stability using a standardised monitoring dataset of 99 stream fish communities spanning from 1995 to 2018. We first revealed that both richness and average trophic level are positively related to annual biomass, with effects of similar strength. Second, we found that community stability is fostered by mean trophic level, while contrary to expectation, it is decreased by species richness. Finally, we found that environmental conditions affect both biomass and its stability mainly via effects on richness and network structure. Strikingly, the effect of species richness on community stability was mediated by population stability rather than synchrony, which contrasts with results from single trophic communities. We discuss the hypothesis that it could be a characteristic of multi-trophic communities. © 2021 John Wiley & Sons Ltd.
关键词	biomass ecosystem functioning fish foodweb natural settings network structure species richness stability synchrony temperature
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204368
作者单位	Centre d'Ecologie et des Sciences de la Conservation, UMR 7204 MNHN-CNRS-Sorbonne Université, Muséum national d'Histoire naturelle de Paris, Paris, France; Ecological and Evolutionary Dynamics Lab, Department of Zoology, University of Oxford, Oxford, United Kingdom; Sorbonne Université, CNRS, IRD, INRAE, Université Paris Est Créteil, Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), Paris, France
推荐引用方式 GB/T 7714	Danet A.,Mouchet M.,Bonnaffé W.,et al. Species richness and food-web structure jointly drive community biomass and its temporal stability in fish communities[J],2021.
APA	Danet A.,Mouchet M.,Bonnaffé W.,Thébault E.,&Fontaine C..(2021).Species richness and food-web structure jointly drive community biomass and its temporal stability in fish communities.Ecology Letters.
MLA	Danet A.,et al."Species richness and food-web structure jointly drive community biomass and its temporal stability in fish communities".Ecology Letters (2021).