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Female philopatry in a heterogeneous environment: ordinary conditions leading to extraordinary ESS sex ratios

BACKGROUND: We use a simulation-based model to study the impact of female philopatry and heterogeneity of habitat quality on the evolution of primary sex ratio. RESULTS: We show that these conditions may lead to strongly biased ESS habitat-dependent sex ratios, under two kinds of density-dependent p...

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Detalles Bibliográficos
Autores principales: Hulin, Vincent, Guillon, Jean-Michel
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2007
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1804258/
https://www.ncbi.nlm.nih.gov/pubmed/17284311
http://dx.doi.org/10.1186/1471-2148-7-13
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author Hulin, Vincent
Guillon, Jean-Michel
author_facet Hulin, Vincent
Guillon, Jean-Michel
author_sort Hulin, Vincent
collection PubMed
description BACKGROUND: We use a simulation-based model to study the impact of female philopatry and heterogeneity of habitat quality on the evolution of primary sex ratio. RESULTS: We show that these conditions may lead to strongly biased ESS habitat-dependent sex ratios, under two kinds of density-dependent population regulation. ESS sex ratios are always biased towards females in good habitats, towards males in poor habitats, and are generally equilibrated considering the whole population. Noticeably, the predicted bias of sex ratio usually increases with decreasing female philopatry. CONCLUSION: The selection forces responsible for these results are fully described. This study provides a new perspective on the evolutionary significance of temperature sex determination. We discuss the case of turtles by comparing our theoretical results with field observations.
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spelling pubmed-18042582007-02-26 Female philopatry in a heterogeneous environment: ordinary conditions leading to extraordinary ESS sex ratios Hulin, Vincent Guillon, Jean-Michel BMC Evol Biol Research Article BACKGROUND: We use a simulation-based model to study the impact of female philopatry and heterogeneity of habitat quality on the evolution of primary sex ratio. RESULTS: We show that these conditions may lead to strongly biased ESS habitat-dependent sex ratios, under two kinds of density-dependent population regulation. ESS sex ratios are always biased towards females in good habitats, towards males in poor habitats, and are generally equilibrated considering the whole population. Noticeably, the predicted bias of sex ratio usually increases with decreasing female philopatry. CONCLUSION: The selection forces responsible for these results are fully described. This study provides a new perspective on the evolutionary significance of temperature sex determination. We discuss the case of turtles by comparing our theoretical results with field observations. BioMed Central 2007-02-06 /pmc/articles/PMC1804258/ /pubmed/17284311 http://dx.doi.org/10.1186/1471-2148-7-13 Text en Copyright © 2007 Hulin and Guillon; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Hulin, Vincent
Guillon, Jean-Michel
Female philopatry in a heterogeneous environment: ordinary conditions leading to extraordinary ESS sex ratios
title Female philopatry in a heterogeneous environment: ordinary conditions leading to extraordinary ESS sex ratios
title_full Female philopatry in a heterogeneous environment: ordinary conditions leading to extraordinary ESS sex ratios
title_fullStr Female philopatry in a heterogeneous environment: ordinary conditions leading to extraordinary ESS sex ratios
title_full_unstemmed Female philopatry in a heterogeneous environment: ordinary conditions leading to extraordinary ESS sex ratios
title_short Female philopatry in a heterogeneous environment: ordinary conditions leading to extraordinary ESS sex ratios
title_sort female philopatry in a heterogeneous environment: ordinary conditions leading to extraordinary ess sex ratios
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1804258/
https://www.ncbi.nlm.nih.gov/pubmed/17284311
http://dx.doi.org/10.1186/1471-2148-7-13
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