globalchange  > 过去全球变化的重建
DOI: 10.1371/journal.pone.0125441
论文题名:
Historical Invasion Records Can Be Misleading: Genetic Evidence for Multiple Introductions of Invasive Raccoons (Procyon lotor) in Germany
作者: Mari L. Fischer; Axel Hochkirch; Mike Heddergott; Christoph Schulze; Helena E. Anheyer-Behmenburg; Johannes Lang; Frank-Uwe Michler; Ulf Hohmann; Hermann Ansorge; Lothar Hoffmann; Roland Klein; Alain C. Frantz
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2015
发表日期: 2015-5-6
卷: 10, 期:5
语种: 英语
英文关键词: Population genetics ; Raccoons ; Germany ; Genetic loci ; Invasive species ; Genetic drift ; Phylogeography ; German people
英文摘要: Biological invasions provide excellent study systems to understand evolutionary, genetic and ecological processes during range expansions. There is strong evidence for positive effects of high propagule pressure and the associated higher genetic diversity on invasion success, but some species have become invasive despite small founder numbers. The raccoon (Procyon lotor) is often considered as a typical example for such a successful invasion resulting from a small number of founders. The species’ largest non-native population in Germany is commonly assumed to stem from a small number of founders and two separate founding events in the 1930s and 1940s. In the present study we analyzed 407 raccoons at 20 microsatellite loci sampled from the invasive range in Western Europe to test if these assumptions are correct. Contrary to the expectations, different genetic clustering methods detected evidence for at least four independent introduction events that gave rise to genetically differentiated subpopulations. Further smaller clusters were either artifacts or resulted from founder events at the range margin and recent release of captive individuals. We also found genetic evidence for on-going introductions of individuals. Furthermore a novel randomization process was used to determine the potential range of founder population size that would suffice to capture all the alleles present in a cluster. Our results falsify the assumption that this species has become widespread and abundant despite being genetically depauperate and show that historical records of species introductions may be misleading.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0125441&type=printable
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/21587
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: Department of Biogeography, Trier University, Trier, Germany;Department of Biogeography, Trier University, Trier, Germany;Musée National d'Histoire Naturelle, Luxembourg, Luxembourg;Landeslabor Berlin-Brandenburg, Frankfurt (Oder), Germany;Lower Saxony State Office for Consumer Protection and Food Safety, Food and Veterinary Institute Braunschweig/Hannover, Hannover, Germany;Institut für Tierökologie und Naturbildung, Gonterskirchen, Germany;Dresden University of Technology, Institute of Forest Botany and Forest Zoology, Tharandt, Germany;Department of Wildlife Ecology, Research Institute for Forest Ecology and Forestry Rhineland-Palatinate, Trippstadt, Germany;Senckenberg Museum of Natural History Görlitz, Görlitz, Germany;Thüringer Landesamt für Verbraucherschutz, Bad Langensalza, Germany;Department of Biogeography, Trier University, Trier, Germany;Musée National d'Histoire Naturelle, Luxembourg, Luxembourg

Recommended Citation:
Mari L. Fischer,Axel Hochkirch,Mike Heddergott,et al. Historical Invasion Records Can Be Misleading: Genetic Evidence for Multiple Introductions of Invasive Raccoons (Procyon lotor) in Germany[J]. PLOS ONE,2015-01-01,10(5)
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