Population Ecology

, Volume 51, Issue 2, pp 289–295

Experimental translocation of juvenile water voles in a Scottish lowland metapopulation

  • Diana O. Fisher
  • Xavier Lambin
  • Sonja M. Yletyinen
Original Article

DOI: 10.1007/s10144-008-0122-4

Cite this article as:
Fisher, D.O., Lambin, X. & Yletyinen, S.M. Popul Ecol (2009) 51: 289. doi:10.1007/s10144-008-0122-4
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Abstract

Population density affects dispersal success because residents can hinder or facilitate immigration into a new site, via a “social fence effect” or “social attraction” (or “conspecific attraction”), respectively. These mechanisms can affect the dynamics of fragmented populations and the success of translocations. However, information on the settlement behaviour of dispersers is rare. We conducted a manipulative field experiment using wild water voles, which exist in metapopulations along waterways in Scotland. We translocated 17 young of dispersal age into either an occupied site or a vacant site containing good habitat, which had recently become extinct due to a feral predator (American mink) moving through. We monitored the movements of translocated voles using radio telemetry. Translocated voles were less likely to settle in occupied sites with higher densities of residents, suggesting a possible social fence effect at high density. There was evidence of a social attraction mechanism, because voles never remained at new sites unless another individual arrived soon after translocation, and they were more likely to settle in occupied or colonised sites than vacant ones. Voles remained in the transient phase of dispersal for many days, and often followed a “stepping stone” trajectory, stopping for several days at successive sites. We suggest that trajectories followed by dispersing water voles, the time scale and long dispersal distances found in this species are conducive to locating conspecifics at low density and colonising vacant habitat. These results are encouraging for prospects of metapopulation persistence and future translocation success.

Keywords

DispersalImmigrationMetapopulation dynamicsSocial fenceTranslocationWater vole

Copyright information

© The Society of Population Ecology and Springer 2008

Authors and Affiliations

  • Diana O. Fisher
    • 1
    • 2
  • Xavier Lambin
    • 1
  • Sonja M. Yletyinen
    • 1
    • 3
  1. 1.Institute of Biological and Environmental SciencesUniversity of AberdeenAberdeenUK
  2. 2.School of Integrative BiologyUniversity of QueenslandSt LuciaAustralia
  3. 3.Department of Biology, Section of EcologyUniversity of TurkuTurkuFinland