DOI: 10.1111/gcb.12191
论文题名: Life histories predict coral community disassembly under multiple stressors
作者: Darling E.S. ; McClanahan T.R. ; Côté I.M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 6 起始页码: 1930
结束页码: 1940
语种: 英语
英文关键词: Climate change
; Cumulative effects
; Fishing
; Kenya
; Marine reserves
; Scleractinian corals
; Stressor interactions
; Synergy
Scopus关键词: bleaching
; climate change
; community dynamics
; community response
; coral reef
; environmental stress
; fishing
; life history
; marine park
; species diversity
; species richness
; synergism
; animal
; Anthozoa
; article
; coral reef
; physiological stress
; physiology
; Animals
; Anthozoa
; Coral Reefs
; Stress, Physiological
; Kenya
; Anthozoa
; Scleractinia
英文摘要: Climate change is reshaping biological communities against a background of existing human pressure. Evaluating the impacts of multiple stressors on community dynamics can be particularly challenging in species-rich ecosystems, such as coral reefs. Here, we investigate whether life-history strategies and cotolerance to different stressors can predict community responses to fishing and temperature-driven bleaching using a 20-year time series of coral assemblages in Kenya. We found that the initial life-history composition of coral taxa largely determined the impacts of bleaching and coral loss. Prior to the 1998 bleaching event, coral assemblages within no-take marine reserves were composed of three distinct life histories - competitive, stress-tolerant and weedy- and exhibited strong declines following bleaching with limited subsequent recovery. In contrast, fished reefs had lower coral cover, fewer genera and were composed of stress-tolerant and weedy corals that were less affected by bleaching over the long term. Despite these general patterns, we found limited evidence for cotolerance as coral genera and life histories were variable in their sensitivities to fishing and bleaching. Overall, fishing and bleaching have reduced coral diversity and led to altered coral communities of 'survivor' species with stress-tolerant and weedy life histories. Our findings are consistent with expectations that climate change interacting with existing human pressure will result in the loss of coral diversity and critical reef habitat. © 2013 Blackwell Publishing Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62440
Appears in Collections: 影响、适应和脆弱性
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作者单位: Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, 8888 University Dr, Burnaby, BC, V5A 1S6, Canada; Marine Programs, Wildlife Conservation Society, Bronx, NY, United States
Recommended Citation:
Darling E.S.,McClanahan T.R.,Côté I.M.. Life histories predict coral community disassembly under multiple stressors[J]. Global Change Biology,2013-01-01,19(6)