DOI: 10.1111/ele.12814
Scopus记录号: 2-s2.0-85026303590
论文题名: Resistance, tolerance and environmental transmission dynamics determine host extinction risk in a load-dependent amphibian disease
作者: Wilber M.Q. ; Knapp R.A. ; Toothman M. ; Briggs C.J.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期: 9 起始页码: 1169
结束页码: 1181
语种: 英语
英文关键词: Batrachochytrium dendrobatidis
; chytridiomycosis
; density-dependent transmission
; frequency-dependent transmission
; integral projection models
; macroparasite
; microparasite
; Rana muscosa
; Rana sierrae
Scopus关键词: Amphibia
; Batrachochytrium dendrobatidis
; Rana muscosa
; Amphibia
; animal
; Chytridiomycetes
; environment
; mycosis
; risk
; Amphibians
; Animals
; Chytridiomycota
; Environment
; Mycoses
; Risk
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107581
Appears in Collections: 气候减缓与适应
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作者单位: Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA, United States; Sierra Nevada Aquatic Research Laboratory, University of California, Mammoth Lakes, CA, United States
Recommended Citation:
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]. Ecology Letters,2017-01-01,20(9)