气候变化领域集成服务门户(CCPortal): Habitat loss and range shifts contribute to ecological generalization among reef fishes

CCPortal

DOI	10.1038/s41559-020-01342-7
	Habitat loss and range shifts contribute to ecological generalization among reef fishes
	Stuart-Smith R.D.; Mellin C.; Bates A.E.; Edgar G.J.
发表日期	2021
ISSN	2397-334X
起始页码	656
结束页码	662
卷号	5 期号:5
英文摘要	Human activities are altering the structure of ecological communities, often favouring generalists over specialists. For reef fishes, increasingly degraded habitats and climate-driven range shifts may independently augment generalization, particularly if fishes with least-specific habitat requirements are more likely to shift geographic ranges to track their thermal niche. Using a unique global dataset on temperate and tropical reef fishes and habitat composition, we calculated a species generalization index that empirically estimates the habitat niche breadth of each fish species. We then applied the species generalization index to evaluate potential impacts of habitat loss and range shifts across large scales, on coral and rocky reefs. Our analyses revealed consistent habitat-induced shifts in community structure that favoured generalist fishes following regional coral mortality events and between adjacent sea urchin barrens and kelp habitats. Analysis of the distribution of tropical fishes also identified the species generalization index as the most important trait in predicting their poleward range extent, more so than body or range size. Generalist tropical reef fishes penetrate further into subtropical and temperate zones than specialists. Dynamic responses of reef fishes to habitat degradation imply loss of specialists at local scales, while generalists will be broadly favoured under intensifying anthropogenic pressures. An increased focus on individual requirements of specialists could provide useful guidance for species threat assessments and conservation actions, while ecosystem and multi-species fisheries models should recognize increasing prevalence of generalists. ? 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	animal; Anthozoa; coral reef; ecosystem; fish; fishery; human; Animals; Anthozoa; Coral Reefs; Ecosystem; Fisheries; Fishes; Humans
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/256976
作者单位	Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia; The Environment Institute and School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia; Department of Ocean Sciences, Memorial University of Newfoundland, St John’s, NL, Canada
推荐引用方式 GB/T 7714	Stuart-Smith R.D.,Mellin C.,Bates A.E.,et al. Habitat loss and range shifts contribute to ecological generalization among reef fishes[J],2021,5(5).
APA	Stuart-Smith R.D.,Mellin C.,Bates A.E.,&Edgar G.J..(2021).Habitat loss and range shifts contribute to ecological generalization among reef fishes.Nature Ecology & Evolution,5(5).
MLA	Stuart-Smith R.D.,et al."Habitat loss and range shifts contribute to ecological generalization among reef fishes".Nature Ecology & Evolution 5.5(2021).