DOI: 10.1111/ele.12432
Scopus记录号: 2-s2.0-84934178242
论文题名: Experimental evidence for the effect of habitat loss on the dynamics of migratory networks
作者: Betini G.S. ; Fitzpatrick M.J. ; Norris D.R.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期: 6 起始页码: 526
结束页码: 534
语种: 英语
英文关键词: Climate change
; Drosophila melanogaster
; Graph theory
; Migratory connectivity
Scopus关键词: Animalia
; Drosophila melanogaster
; animal
; breeding
; computer simulation
; Drosophila melanogaster
; ecosystem
; environmental protection
; physiology
; population density
; population dynamics
; population migration
; theoretical model
; Animal Migration
; Animals
; Breeding
; Computer Simulation
; Conservation of Natural Resources
; Drosophila melanogaster
; Ecosystem
; Models, Theoretical
; Population Density
; Population Dynamics
英文摘要: Migratory animals present a unique challenge for understanding the consequences of habitat loss on population dynamics because individuals are typically distributed over a series of interconnected breeding and non-breeding sites (termed migratory network). Using replicated breeding and non-breeding populations of Drosophila melanogaster and a mathematical model, we investigated three hypotheses to explain how habitat loss influenced the dynamics of populations in networks with different degrees of connectivity between breeding and non-breeding seasons. We found that habitat loss increased the degree of connectivity in the network and influenced population size at sites that were not directly connected to the site where habitat loss occurred. However, connected networks only buffered global population declines at high levels of habitat loss. Our results demonstrate why knowledge of the patterns of connectivity across a species range is critical for predicting the effects of environmental change and provide empirical evidence for why connected migratory networks are commonly found in nature. © 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/107956
Appears in Collections: 气候减缓与适应
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作者单位: Department of Integrative Biology, University of Guelph, Guelph, ON, Canada; Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON, Canada
Recommended Citation:
Betini G.S.,Fitzpatrick M.J.,Norris D.R.. Experimental evidence for the effect of habitat loss on the dynamics of migratory networks[J]. Ecology Letters,2015-01-01,18(6)