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Dispersal is not female biased in a resource-defence mating ungulate, the European roe deer

Abstract : Dispersal is frequently more prevalent in one sex compared to the other. Greenwood proposed that patterns of sex-biased dispersal among birds and mammals are linked to their mating strategies. For species where males defend resources rather than females, he predicted female-biased dispersal, because males should remain at their birth site where they are familiar with the distribution of the resources that they must defend. Greenwood's hypothesis has been extensively supported among birds, where most species exhibit a resource-defence mating strategy. However, almost no equivalent information is available for mammals as males generally defend mates in this group. An exception is the European roe deer, a resource-defence mating ungulate. We thus tested Greenwood's hypothesis on this atypical mammalian model, looking for female-biased dispersal using sex-specific inter-individual genetic distances. We conclusively show that gene flow is not higher among females compared to males in the studied roe deer population, and hence that dispersal is not female-biased, suggesting that male mating strategy is not the primary selective force driving the evolution of dispersal in roe deer. We discuss the role of female mate choice and intra-sexual competition as possible alternative selective pressures involved
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https://hal.inrae.fr/hal-02657875
Contributor : Migration Prodinra <>
Submitted on : Saturday, May 30, 2020 - 11:16:03 AM
Last modification on : Wednesday, May 12, 2021 - 8:13:57 AM

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Aurélie Coulon, Jean-Francois Cosson, Nicolas Morellet, Jean-Marc Angibault, Bruno Cargnelutti, et al.. Dispersal is not female biased in a resource-defence mating ungulate, the European roe deer. Proceedings of the Royal Society B: Biological Sciences, Royal Society, The, 2006, 273 (1584), pp.341-348. ⟨10.1098/rspb.2005.3329⟩. ⟨hal-02657875⟩

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