气候变化领域集成服务门户(CCPortal): Experimental evidence for the effect of habitat loss on the dynamics of migratory networks

CCPortal

DOI	10.1111/ele.12432
	Experimental evidence for the effect of habitat loss on the dynamics of migratory networks
	Betini G.S.; Fitzpatrick M.J.; Norris D.R.
发表日期	2015
ISSN	1461-023X
EISSN	1461-0248
卷号	18 期号:6
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.
英文关键词	Climate change; Drosophila melanogaster; Graph theory; Migratory connectivity
学科领域	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
语种	英语
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
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/118695
作者单位	Department of Integrative Biology, University of Guelph, Guelph, ON N1G 2W1, Canada; Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada
推荐引用方式 GB/T 7714	Betini G.S.,Fitzpatrick M.J.,Norris D.R.. Experimental evidence for the effect of habitat loss on the dynamics of migratory networks[J],2015,18(6).
APA	Betini G.S.,Fitzpatrick M.J.,&Norris D.R..(2015).Experimental evidence for the effect of habitat loss on the dynamics of migratory networks.Ecology Letters,18(6).
MLA	Betini G.S.,et al."Experimental evidence for the effect of habitat loss on the dynamics of migratory networks".Ecology Letters 18.6(2015).