气候变化领域集成服务门户(CCPortal): Tropical herbivores provide resilience to a climate-mediated phase shift on temperate reefs

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DOI	10.1111/ele.12450
	Tropical herbivores provide resilience to a climate-mediated phase shift on temperate reefs
	Bennett S.; Wernberg T.; Harvey E.S.; Santana-Garcon J.; Saunders B.J.
发表日期	2015
ISSN	1461-023X
EISSN	1461-0248
卷号	18 期号:7
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.
英文关键词	Climate change; Coral reef; Fishes; Kelp; Regime shift; Tropicalisation
学科领域	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
语种	英语
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
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/118702
作者单位	School of Plant Biology and UWA Oceans Institute, University of Western Australia, 39 Fairway, Crawley, WA 6009, Australia; Department of Environment and Agriculture, Curtin University, Bentley, WA 6102, Australia
推荐引用方式 GB/T 7714	Bennett S.,Wernberg T.,Harvey E.S.,et al. Tropical herbivores provide resilience to a climate-mediated phase shift on temperate reefs[J],2015,18(7).
APA	Bennett S.,Wernberg T.,Harvey E.S.,Santana-Garcon J.,&Saunders B.J..(2015).Tropical herbivores provide resilience to a climate-mediated phase shift on temperate reefs.Ecology Letters,18(7).
MLA	Bennett S.,et al."Tropical herbivores provide resilience to a climate-mediated phase shift on temperate reefs".Ecology Letters 18.7(2015).