The ecology of sexual dimorphism in size and shape of the freshwater blenny Salaria fluviatilis.

Sexual selection is considered the major cause of sexual dimorphism, but recent observations suggest that natural selection may play a more important role in the evolution of sex differentiation than previously recognized. Therefore, studying the trade-offs between natural selection and sexual selec...

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Autores: Laporte, M., Berrebi, P., Claude, J., Vinyoles Cartanyà, Dolors, Pou-Rovira, Q., Raymond, J.C., Magnan, P.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2018
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositório:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/123695
Acesso em linha:https://hdl.handle.net/2445/123695
Access Level:Acceso aberto
Palavra-chave:Diferències entre sexes
Peixos
Sex differences
Fishes
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spelling The ecology of sexual dimorphism in size and shape of the freshwater blenny Salaria fluviatilis.Laporte, M.Berrebi, P.Claude, J.Vinyoles Cartanyà, DolorsPou-Rovira, Q.Raymond, J.C.Magnan, P.Diferències entre sexesPeixosSex differencesFishesSexual selection is considered the major cause of sexual dimorphism, but recent observations suggest that natural selection may play a more important role in the evolution of sex differentiation than previously recognized. Therefore, studying the trade-offs between natural selection and sexual selection is crucial to a better understanding of the ecology underlying the evolution of sexual dimorphism. The freshwater blenny Salaria fluviatilis, a fish inhabiting lakes and rivers around the Mediterranean Sea, displays strong sexual dimorphism in size, shape, and behavior (i.e., larger body and head size for males and higher swimming requirements for females during the reproductive period). We tested for differences in sexual dimorphism in size and shape between the populations from lake and river habitats with the goal of identifying the trade-offs between natural and sexual selection that underlie variations in sexual dimorphism in this species. Our results show i) differences in sexual size dimorphism (SSizeD) in accordance to Rensch's rule (i.e., larger individuals in rivers associated with higher SSizeD), and ii) a decrease in shape differentiation between males and females in lake populations. Together, this suggests that the different environmental conditions between lake and river habitats (e.g., resource limitations, predation pressure, water velocity) affect the relative importance of sexual selection in the display of sexual dimorphism within the species. This study highlights the importance of considering the environmental conditions to which populations are exposed to better understand the ecology underlying the evolution of sexual dimorphism.Oxford University Press2018201820182018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion9 p.application/pdfapplication/pdfhttps://hdl.handle.net/2445/123695Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1093/cz/zox043Current Zoology, 2018, vol. 64, num. 2, p. 183-191https://doi.org/10.1093/cz/zox043cc-by-nc (c) Laporte, M. et al., 2018http://creativecommons.org/licenses/by-nc/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/1236952026-05-29T05:05:01Z
dc.title.none.fl_str_mv The ecology of sexual dimorphism in size and shape of the freshwater blenny Salaria fluviatilis.
title The ecology of sexual dimorphism in size and shape of the freshwater blenny Salaria fluviatilis.
spellingShingle The ecology of sexual dimorphism in size and shape of the freshwater blenny Salaria fluviatilis.
Laporte, M.
Diferències entre sexes
Peixos
Sex differences
Fishes
title_short The ecology of sexual dimorphism in size and shape of the freshwater blenny Salaria fluviatilis.
title_full The ecology of sexual dimorphism in size and shape of the freshwater blenny Salaria fluviatilis.
title_fullStr The ecology of sexual dimorphism in size and shape of the freshwater blenny Salaria fluviatilis.
title_full_unstemmed The ecology of sexual dimorphism in size and shape of the freshwater blenny Salaria fluviatilis.
title_sort The ecology of sexual dimorphism in size and shape of the freshwater blenny Salaria fluviatilis.
dc.creator.none.fl_str_mv Laporte, M.
Berrebi, P.
Claude, J.
Vinyoles Cartanyà, Dolors
Pou-Rovira, Q.
Raymond, J.C.
Magnan, P.
author Laporte, M.
author_facet Laporte, M.
Berrebi, P.
Claude, J.
Vinyoles Cartanyà, Dolors
Pou-Rovira, Q.
Raymond, J.C.
Magnan, P.
author_role author
author2 Berrebi, P.
Claude, J.
Vinyoles Cartanyà, Dolors
Pou-Rovira, Q.
Raymond, J.C.
Magnan, P.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Diferències entre sexes
Peixos
Sex differences
Fishes
topic Diferències entre sexes
Peixos
Sex differences
Fishes
description Sexual selection is considered the major cause of sexual dimorphism, but recent observations suggest that natural selection may play a more important role in the evolution of sex differentiation than previously recognized. Therefore, studying the trade-offs between natural selection and sexual selection is crucial to a better understanding of the ecology underlying the evolution of sexual dimorphism. The freshwater blenny Salaria fluviatilis, a fish inhabiting lakes and rivers around the Mediterranean Sea, displays strong sexual dimorphism in size, shape, and behavior (i.e., larger body and head size for males and higher swimming requirements for females during the reproductive period). We tested for differences in sexual dimorphism in size and shape between the populations from lake and river habitats with the goal of identifying the trade-offs between natural and sexual selection that underlie variations in sexual dimorphism in this species. Our results show i) differences in sexual size dimorphism (SSizeD) in accordance to Rensch's rule (i.e., larger individuals in rivers associated with higher SSizeD), and ii) a decrease in shape differentiation between males and females in lake populations. Together, this suggests that the different environmental conditions between lake and river habitats (e.g., resource limitations, predation pressure, water velocity) affect the relative importance of sexual selection in the display of sexual dimorphism within the species. This study highlights the importance of considering the environmental conditions to which populations are exposed to better understand the ecology underlying the evolution of sexual dimorphism.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/123695
url https://hdl.handle.net/2445/123695
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1093/cz/zox043
Current Zoology, 2018, vol. 64, num. 2, p. 183-191
https://doi.org/10.1093/cz/zox043
dc.rights.none.fl_str_mv cc-by-nc (c) Laporte, M. et al., 2018
http://creativecommons.org/licenses/by-nc/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc (c) Laporte, M. et al., 2018
http://creativecommons.org/licenses/by-nc/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 9 p.
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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