DOI: 10.1111/ele.12450
Scopus记录号: 2-s2.0-84931578759
论文题名: Tropical herbivores provide resilience to a climate-mediated phase shift on temperate reefs
作者: Bennett S. ; Wernberg T. ; Harvey E.S. ; Santana-Garcon J. ; Saunders B.J.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期: 7 起始页码: 714
结束页码: 723
语种: 英语
英文关键词: Climate change
; Coral reef
; Fishes
; Kelp
; Regime shift
; Tropicalisation
Scopus关键词: abundance
; biomass
; coral reef
; disturbance
; ecosystem resilience
; feeding behavior
; fish
; global warming
; herbivore
; interspecific interaction
; seaweed
; species diversity
; temperate environment
; tropical environment
; Anthozoa
; Pisces
; animal
; Australia
; climate change
; coral reef
; fish
; herbivory
; kelp
; tropic climate
; Animals
; Australia
; Climate Change
; Coral Reefs
; Fishes
; Herbivory
; Kelp
; Tropical Climate
英文摘要: Climate-mediated changes to biotic interactions have the potential to fundamentally alter global ecosystems. However, the capacity for novel interactions to drive or maintain transitions in ecosystem states remains unresolved. We examined temperate reefs that recently underwent complete seaweed canopy loss and tested whether a concurrent increase in tropical herbivores could be maintaining the current canopy-free state. Turf-grazing herbivorous fishes increased in biomass and diversity, and displayed feeding rates comparable to global coral reefs. Canopy-browsing herbivores displayed high (~ 10 000 g 100 m-2) and stable biomass between 2006 and 2013. Tropical browsers had the highest abundance in 2013 and displayed feeding rates approximately three times higher than previously observed on coral reefs. These observations suggest that tropical herbivores are maintaining previously kelp-dominated temperate reefs in an alternate canopy-free state by grazing turfs and preventing kelp reestablishment. This remarkable ecosystem highlights the sensitivity of biotic interactions and ecosystem stability to warming and extreme disturbance events. © 2015 John Wiley & Sons Ltd/CNRS. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107967
Appears in Collections: 气候减缓与适应
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作者单位: School of Plant Biology and UWA Oceans Institute, University of Western Australia, 39 Fairway, Crawley, WA, Australia; Department of Environment and Agriculture, Curtin University, Bentley, WA, Australia
Recommended Citation:
Bennett S.,Wernberg T.,Harvey E.S.,et al. Tropical herbivores provide resilience to a climate-mediated phase shift on temperate reefs[J]. Ecology Letters,2015-01-01,18(7)