DOI: 10.1111/ele.12463
Scopus记录号: 2-s2.0-84946414563
论文题名: Refugia and connectivity sustain amphibian metapopulations afflicted by disease
作者: Heard G.W. ; Thomas C.D. ; Hodgson J.A. ; Scroggie M.P. ; Ramsey D.S.L. ; Clemann N.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期: 8 起始页码: 853
结束页码: 863
语种: 英语
英文关键词: Litoria raniformis
; Amphibian
; Chytrid
; Colonisation
; Conservation
; Extinction
; Microclimate
; Pathogen
; Reservoir host
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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107972
Appears in Collections: 气候减缓与适应
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作者单位: School of BioSciences, University of Melbourne, Parkville, VIC, Australia; Department of Biology, University of York, Wentworth Way, York, United Kingdom; Department of Evolution, Ecology and Behaviour, University of Liverpool, Liverpool, United Kingdom; Department of Environment, Land, Water and Planning, Arthur Rylah Institute for Environmental Research, P.O. Box 137, Heidelberg, Australia
Recommended Citation:
Heard G.W.,Thomas C.D.,Hodgson J.A.,et al. Refugia and connectivity sustain amphibian metapopulations afflicted by disease[J]. Ecology Letters,2015-01-01,18(8)