气候变化领域集成服务门户(CCPortal): Refugia and connectivity sustain amphibian metapopulations afflicted by disease

CCPortal

DOI	10.1111/ele.12463
	Refugia and connectivity sustain amphibian metapopulations afflicted by disease
	Heard G.W.; Thomas C.D.; Hodgson J.A.; Scroggie M.P.; Ramsey D.S.L.; Clemann N.
发表日期	2015
ISSN	1461-023X
EISSN	1461-0248
卷号	18 期号:8
英文摘要	Metapopulation persistence in fragmented landscapes depends on habitat patches that can support resilient local populations and sufficient connectivity between patches. Yet epidemiological theory for metapopulations has largely overlooked the capacity of particular patches to act as refuges from disease, and has suggested that connectivity can undermine persistence. Here, we show that relatively warm and saline wetlands are environmental refuges from chytridiomycosis for an endangered Australian frog, and act jointly with connectivity to sustain frog metapopulations. We coupled models of microclimate and infection probability to map chytrid prevalence, and demonstrate a strong negative relationship between chytrid prevalence and the persistence of frog populations. Simulations confirm that frog metapopulations are likely to go extinct when they lack environmental refuges from disease and lose connectivity between patches. This study demonstrates that environmental heterogeneity can mediate host-pathogen interactions in fragmented landscapes, and provides evidence that connectivity principally supports host metapopulations afflicted by facultative pathogens. © 2015 John Wiley & Sons Ltd/CNRS.
英文关键词	Litoria raniformis; Amphibian; Chytrid; Colonisation; Conservation; Extinction; Microclimate; Pathogen; Reservoir host
学科领域	colonization; conservation; endangered species; extinction; frog; metapopulation; microclimate; pathogen; Amphibia; Anura; Litoria raniformis; Myobatrachidae; animal; Anura; Australia; biological model; Chytridiomycetes; endangered species; host pathogen interaction; microbiology; microclimate; mycosis; pathogenicity; physiological stress; population dynamics; salinity; species extinction; statistical model; temperature; transmission; veterinary; wetland; Animals; Anura; Australia; Chytridiomycota; Endangered Species; Extinction, Biological; Host-Pathogen Interactions; Microclimate; Models, Biological; Models, Statistical; Mycoses; Population Dynamics; Salinity; Stress, Physiological; Temperature; Wetlands
语种	英语
scopus关键词	colonization; conservation; endangered species; extinction; frog; metapopulation; microclimate; pathogen; Amphibia; Anura; Litoria raniformis; Myobatrachidae; animal; Anura; Australia; biological model; Chytridiomycetes; endangered species; host pathogen interaction; microbiology; microclimate; mycosis; pathogenicity; physiological stress; population dynamics; salinity; species extinction; statistical model; temperature; transmission; veterinary; wetland; Animals; Anura; Australia; Chytridiomycota; Endangered Species; Extinction, Biological; Host-Pathogen Interactions; Microclimate; Models, Biological; Models, Statistical; Mycoses; Population Dynamics; Salinity; Stress, Physiological; Temperature; Wetlands
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/118659
作者单位	School of BioSciences, University of Melbourne, Parkville, VIC 3010, Australia; Department of Biology, University of York, Wentworth Way, York, YO10 5DD, United Kingdom; Department of Evolution, Ecology and Behaviour, University of Liverpool, Liverpool, L69 7ZB, United Kingdom; Department of Environment, Land, Water and Planning, Arthur Rylah Institute for Environmental Research, P.O. Box 137, Heidelberg, 3084, Australia
推荐引用方式 GB/T 7714	Heard G.W.,Thomas C.D.,Hodgson J.A.,et al. Refugia and connectivity sustain amphibian metapopulations afflicted by disease[J],2015,18(8).
APA	Heard G.W.,Thomas C.D.,Hodgson J.A.,Scroggie M.P.,Ramsey D.S.L.,&Clemann N..(2015).Refugia and connectivity sustain amphibian metapopulations afflicted by disease.Ecology Letters,18(8).
MLA	Heard G.W.,et al."Refugia and connectivity sustain amphibian metapopulations afflicted by disease".Ecology Letters 18.8(2015).