DOI: 10.1111/gcb.12922
论文题名: Genetic footprints reveal geographic patterns of expansion in Fennoscandian red foxes
作者: Norén K. ; Statham M.J. ; Ågren E.O. ; Isomursu M. ; Flagstad Ø. ; Eide N.E. ; Berg T.B.G. ; Bech-Sanderhoff L. ; Sacks B.N.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 9 起始页码: 3299
结束页码: 3312
语种: 英语
英文关键词: Climate
; Demography
; Landscape
; Microsatellites
; Range shift
; Vulpes vulpes
Scopus关键词: colonization
; demography
; genotype
; geographical distribution
; landscape ecology
; mammal
; population growth
; population migration
; range expansion
; range size
; Fennoscandia
; Northern Europe
; Vulpes
; Vulpes vulpes
; microsatellite DNA
; animal
; animal dispersal
; Bayes theorem
; climate change
; demography
; ecosystem
; fox
; genetic variation
; genetics
; physiology
; Scandinavia
; Animal Distribution
; Animals
; Bayes Theorem
; Climate Change
; Demography
; Ecosystem
; Foxes
; Genetic Variation
; Microsatellite Repeats
; Scandinavian and Nordic Countries
英文摘要: Population expansions of boreal species are among the most substantial ecological consequences of climate change, potentially transforming both structure and processes of northern ecosystems. Despite their importance, little is known about expansion dynamics of boreal species. Red foxes (Vulpes vulpes) are forecasted to become a keystone species in northern Europe, a process stemming from population expansions that began in the 19th century. To identify the relative roles of geographic and demographic factors and the sources of northern European red fox population expansion, we genotyped 21 microsatellite loci in modern and historical (1835-1941) Fennoscandian red foxes. Using Bayesian clustering and Bayesian inference of migration rates, we identified high connectivity and asymmetric migration rates across the region, consistent with source-sink dynamics, whereby more recently colonized sampling regions received immigrants from multiple sources. There were no clear clines in allele frequency or genetic diversity as would be expected from a unidirectional range expansion from south to north. Instead, migration inferences, demographic models and comparison to historical red fox genotypes suggested that the population expansion of the red fox is a consequence of dispersal from multiple sources, as well as in situ demographic growth. Together, these findings provide a rare glimpse into the anatomy of a boreal range expansion and enable informed predictions about future changes in boreal communities. © 2015 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61829
Appears in Collections: 影响、适应和脆弱性
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作者单位: Mammalian Ecology and Conservation Unit, Center for Veterinary Genetics, University of California Davis, Davis, CA, United States; Department of Zoology, Stockholm University, Stockholm, Sweden; National Veterinary Institute, Department of Pathology and Wildlife Diseases, Uppsala, Sweden; Finnish Food Safety Authority Evira, Production Animal and Wildlife Health Research Unit, Elektroniikkatie 5, Oulu, Finland; Norwegian Institute for Nature Research, Trondheim, Norway; Naturama - Modern Natural History, Dronningemaen 30, Svendborg, Denmark
Recommended Citation:
Norén K.,Statham M.J.,Ågren E.O.,et al. Genetic footprints reveal geographic patterns of expansion in Fennoscandian red foxes[J]. Global Change Biology,2015-01-01,21(9)