气候变化领域集成服务门户(CCPortal): Resistance, tolerance and environmental transmission dynamics determine host extinction risk in a load-dependent amphibian disease

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DOI	10.1111/ele.12814
	Resistance, tolerance and environmental transmission dynamics determine host extinction risk in a load-dependent amphibian disease
	Wilber M.Q.; Knapp R.A.; Toothman M.; Briggs C.J.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:9
英文摘要	While disease-induced extinction is generally considered rare, a number of recently emerging infectious diseases with load-dependent pathology have led to extinction in wildlife populations. Transmission is a critical factor affecting disease-induced extinction, but the relative importance of transmission compared to load-dependent host resistance and tolerance is currently unknown. Using a combination of models and experiments on an amphibian species suffering extirpations from the fungal pathogen Batrachochytrium dendrobatidis (Bd), we show that while transmission from an environmental Bd reservoir increased the ability of Bd to invade an amphibian population and the extinction risk of that population, Bd-induced extinction dynamics were far more sensitive to host resistance and tolerance than to Bd transmission. We demonstrate that this is a general result for load-dependent pathogens, where non-linear resistance and tolerance functions can interact such that small changes in these functions lead to drastic changes in extinction dynamics. © 2017 John Wiley & Sons Ltd/CNRS
英文关键词	Batrachochytrium dendrobatidis; chytridiomycosis; density-dependent transmission; frequency-dependent transmission; integral projection models; macroparasite; microparasite; Rana muscosa; Rana sierrae
学科领域	Amphibia; Batrachochytrium dendrobatidis; Rana muscosa; Amphibia; animal; Chytridiomycetes; environment; mycosis; risk; Amphibians; Animals; Chytridiomycota; Environment; Mycoses; Risk
语种	英语
scopus关键词	Amphibia; Batrachochytrium dendrobatidis; Rana muscosa; Amphibia; animal; Chytridiomycetes; environment; mycosis; risk; Amphibians; Animals; Chytridiomycota; Environment; Mycoses; Risk
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/118340
作者单位	Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA 93106, United States; Sierra Nevada Aquatic Research Laboratory, University of California, Mammoth Lakes, CA 93546, United States
推荐引用方式 GB/T 7714	Wilber M.Q.,Knapp R.A.,Toothman M.,et al. Resistance, tolerance and environmental transmission dynamics determine host extinction risk in a load-dependent amphibian disease[J],2017,20(9).
APA	Wilber M.Q.,Knapp R.A.,Toothman M.,&Briggs C.J..(2017).Resistance, tolerance and environmental transmission dynamics determine host extinction risk in a load-dependent amphibian disease.Ecology Letters,20(9).
MLA	Wilber M.Q.,et al."Resistance, tolerance and environmental transmission dynamics determine host extinction risk in a load-dependent amphibian disease".Ecology Letters 20.9(2017).