Evolutionarily stable strategies of migration in heterogeneous environments |
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Authors: | M Plantegenest P Kindlmann |
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Institution: | (1) Laboratoire d'Ecologie et Sciences Phytosanitaires, Ecole Nationale Supérieure Agronomique de Rennes, 35042 Rennes Cedex, France;(2) Faculty of Biological Sciences, University of South Bohemia, Branišovská 31, 370 05 Ceské Budejovice, Czech Republic |
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Abstract: | By means of a simulation model we are showing that the rates of migration can be related to avoidance of competition between
relatives, especially in clonal organisms. This could result in a strong selective pressure for migration, even at a high
cost. In addition, if the habitat is fragmented, migration can strongly affect local dynamics and result in a dramatic decrease
of the densities in some places. In parthenogenetically reproducing organisms like aphids, the level of relatedness in local
populations is expected to be very high and therefore they can serve as a good model group for testing these hypotheses.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | aphids dispersal evolutionarily stable strategy fragmented landscape |
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