Dispersal altering local states has a limited effect on persistence of a metapopulation

Journal of Biological Dynamics
Jingjing Xu, Geoff Wild

Abstract

Metapopulations are collections of local populations connected by dispersal. Metapopulation models often assume would-be colonists affect the states of local populations they disperse from and those they disperse to. Here, we build a new framework to include that effect and to assess the impact of dispersal. Our model predicts that a metapopulation will, in general, be found either in the state of global extinction or in the state of persistence. Our key finding is that dispersal, and the state changes associated with dispersal, have significant qualitative and quantitative effects on long-term dynamics only in a narrow range of parameter space. We conclude that life history features other than dispersal (e.g. mortality rate) have a greater influence over metapopulation persistence. We discuss the implications of our results for conservation biology, the future application of our model to the study of cooperative breeding, as well as our model's limitations.

References

Feb 13, 2001·Theoretical Population Biology·A J Irwin, P D Taylor
Mar 31, 2004·Mathematical Biosciences·Shu-Rong Zhou, Gang Wang
Sep 25, 2008·The American Naturalist·P Amarasekare
Sep 4, 2009·Nature·Marten SchefferGeorge Sugihara
Oct 7, 2009·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Ben J Hatchwell
Feb 27, 2010·Conservation Biology : the Journal of the Society for Conservation Biology·Lynne Gilbert-NortonKaren H Beard
Jul 4, 2012·Mathematical Biosciences·Tom Britton, David Lindenstrand
Apr 2, 2014·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Ben J HatchwellMark J Adams
May 10, 2017·Ecology Letters·Sheng-Feng ShenDustin R Rubenstein

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