Inbreeding depression, asymmetries in costs or benefits of dispersal, and the mating system have been identified as potential factors underlying the evolution of sex-biased dispersal. We use individual-based simulations to explore how the mating system and demographic stochasticity influence the evolution of sex-specific dispersal in a metapopulation with females competing over breeding sites, and males over mating opportunities. Comparison of simulation results for random mating with those for a harem system (locally, a single male sires all offspring) reveal that even extreme variance in local male reproductive success (extreme male competition) does not induce male-biased dispersal. The latter evolves if the between-parch variance in reproductive success is larger for males than females. This can emerge due to demographic stochasticity if the habitat patches are small. More generally, members of a group of individuals experiencing higher spatio-temporal variance in fitness expectations may evolve to disperse with greater probability than others. (C) 2009 Elsevier Inc. All rights reserved.
%0 Journal Article
%1 gros_sex-specific_2009
%A Gros, Andreas
%A Poethke, Hans Joachim
%A Hovestadt, Thomas
%D 2009
%J Theoretical Population Biology
%K imported
%N 1
%P 13--18
%R 10.1016/j.tpb.2009.03.002
%T Sex-specific spatio-temporal variability in reproductive success promotes the evolution of sex-biased dispersal
%V 76
%X Inbreeding depression, asymmetries in costs or benefits of dispersal, and the mating system have been identified as potential factors underlying the evolution of sex-biased dispersal. We use individual-based simulations to explore how the mating system and demographic stochasticity influence the evolution of sex-specific dispersal in a metapopulation with females competing over breeding sites, and males over mating opportunities. Comparison of simulation results for random mating with those for a harem system (locally, a single male sires all offspring) reveal that even extreme variance in local male reproductive success (extreme male competition) does not induce male-biased dispersal. The latter evolves if the between-parch variance in reproductive success is larger for males than females. This can emerge due to demographic stochasticity if the habitat patches are small. More generally, members of a group of individuals experiencing higher spatio-temporal variance in fitness expectations may evolve to disperse with greater probability than others. (C) 2009 Elsevier Inc. All rights reserved.
@article{gros_sex-specific_2009,
abstract = {Inbreeding depression, asymmetries in costs or benefits of dispersal, and the mating system have been identified as potential factors underlying the evolution of sex-biased dispersal. We use individual-based simulations to explore how the mating system and demographic stochasticity influence the evolution of sex-specific dispersal in a metapopulation with females competing over breeding sites, and males over mating opportunities. Comparison of simulation results for random mating with those for a harem system (locally, a single male sires all offspring) reveal that even extreme variance in local male reproductive success (extreme male competition) does not induce male-biased dispersal. The latter evolves if the between-parch variance in reproductive success is larger for males than females. This can emerge due to demographic stochasticity if the habitat patches are small. More generally, members of a group of individuals experiencing higher spatio-temporal variance in fitness expectations may evolve to disperse with greater probability than others. (C) 2009 Elsevier Inc. All rights reserved.},
added-at = {2016-09-26T15:45:29.000+0200},
author = {Gros, Andreas and Poethke, Hans Joachim and Hovestadt, Thomas},
biburl = {https://www.bibsonomy.org/bibtex/2bb01885ba1c2fb2070fe5cf4536c4057/teegroup},
doi = {10.1016/j.tpb.2009.03.002},
interhash = {7be4a2bf1095ef89b4617949289eeb2d},
intrahash = {bb01885ba1c2fb2070fe5cf4536c4057},
issn = {0040-5809; 1096-0325},
journal = {Theoretical Population Biology},
keywords = {imported},
month = aug,
note = {WOS:000266944200002},
number = 1,
pages = {13--18},
timestamp = {2016-09-26T15:45:29.000+0200},
title = {Sex-specific spatio-temporal variability in reproductive success promotes the evolution of sex-biased dispersal},
volume = 76,
year = 2009
}