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Condition- and context-dependent variation of sexual dimorphism across lizard populations at different spatial scales

The evolution of sexual dimorphism (SD) is driven by intricate interplays between sexual and natural selection. When it comes to SD variation within populations, however, environmental factors play a major role. Sexually selected traits are expected to be strongly dependent on individual body condit...

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Autores principales: Muraro, Martina, Sherpa, Stéphanie, Barzaghi, Benedetta, Bombi, Pierluigi, Borgatti, Danilo, Di Canio, Viola, Dalpasso, Andrea, Falaschi, Mattia, Gambioli, Benedetta, Manenti, Raoul, Marta, Silvio, Momigliano, Paolo, Nanni, Veronica, Pardo, Claudio, Parrino, Elia Lo, Scali, Stefano, Storniolo, Federico, Vignoli, Leonardo, Zuffi, Marco A. L., Sacchi, Roberto, Salvi, Daniele, Ficetola, Gentile Francesco
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9550790/
https://www.ncbi.nlm.nih.gov/pubmed/36216914
http://dx.doi.org/10.1038/s41598-022-21358-2
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author Muraro, Martina
Sherpa, Stéphanie
Barzaghi, Benedetta
Bombi, Pierluigi
Borgatti, Danilo
Di Canio, Viola
Dalpasso, Andrea
Falaschi, Mattia
Gambioli, Benedetta
Manenti, Raoul
Marta, Silvio
Momigliano, Paolo
Nanni, Veronica
Pardo, Claudio
Parrino, Elia Lo
Scali, Stefano
Storniolo, Federico
Vignoli, Leonardo
Zuffi, Marco A. L.
Sacchi, Roberto
Salvi, Daniele
Ficetola, Gentile Francesco
author_facet Muraro, Martina
Sherpa, Stéphanie
Barzaghi, Benedetta
Bombi, Pierluigi
Borgatti, Danilo
Di Canio, Viola
Dalpasso, Andrea
Falaschi, Mattia
Gambioli, Benedetta
Manenti, Raoul
Marta, Silvio
Momigliano, Paolo
Nanni, Veronica
Pardo, Claudio
Parrino, Elia Lo
Scali, Stefano
Storniolo, Federico
Vignoli, Leonardo
Zuffi, Marco A. L.
Sacchi, Roberto
Salvi, Daniele
Ficetola, Gentile Francesco
author_sort Muraro, Martina
collection PubMed
description The evolution of sexual dimorphism (SD) is driven by intricate interplays between sexual and natural selection. When it comes to SD variation within populations, however, environmental factors play a major role. Sexually selected traits are expected to be strongly dependent on individual body condition, which is influenced by the local environment that individuals experience. As a consequence, the degree of SD may also depend on resource availability. Here, we investigated the potential drivers of SD expression at two sexually dimorphic morphometric traits, body size (snout vent length) and head shape (head geometric morphometrics), in the Italian wall lizard (Podarcis siculus). We assessed the existence of condition- and context-dependent SD across ten islands of the Aeolian archipelago (southern Italy), at within- and among-population scales. We observed strong geographical variation of SD among islands, and tested three potential SD predictors related to resource availability (individual body condition, ecosystem productivity, temperature). Body condition and ecosystem productivity were the main drivers of body size SD variation, and body condition was also the main driver for head shape SD. Our results highlight that the expression of SD in the Italian wall lizard is both condition- and context-dependent. These results are congruent at within- and among-populations scales highlighting that spatial multi-scale analysis represents a useful approach to understand patterns of SD expression.
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spelling pubmed-95507902022-10-12 Condition- and context-dependent variation of sexual dimorphism across lizard populations at different spatial scales Muraro, Martina Sherpa, Stéphanie Barzaghi, Benedetta Bombi, Pierluigi Borgatti, Danilo Di Canio, Viola Dalpasso, Andrea Falaschi, Mattia Gambioli, Benedetta Manenti, Raoul Marta, Silvio Momigliano, Paolo Nanni, Veronica Pardo, Claudio Parrino, Elia Lo Scali, Stefano Storniolo, Federico Vignoli, Leonardo Zuffi, Marco A. L. Sacchi, Roberto Salvi, Daniele Ficetola, Gentile Francesco Sci Rep Article The evolution of sexual dimorphism (SD) is driven by intricate interplays between sexual and natural selection. When it comes to SD variation within populations, however, environmental factors play a major role. Sexually selected traits are expected to be strongly dependent on individual body condition, which is influenced by the local environment that individuals experience. As a consequence, the degree of SD may also depend on resource availability. Here, we investigated the potential drivers of SD expression at two sexually dimorphic morphometric traits, body size (snout vent length) and head shape (head geometric morphometrics), in the Italian wall lizard (Podarcis siculus). We assessed the existence of condition- and context-dependent SD across ten islands of the Aeolian archipelago (southern Italy), at within- and among-population scales. We observed strong geographical variation of SD among islands, and tested three potential SD predictors related to resource availability (individual body condition, ecosystem productivity, temperature). Body condition and ecosystem productivity were the main drivers of body size SD variation, and body condition was also the main driver for head shape SD. Our results highlight that the expression of SD in the Italian wall lizard is both condition- and context-dependent. These results are congruent at within- and among-populations scales highlighting that spatial multi-scale analysis represents a useful approach to understand patterns of SD expression. Nature Publishing Group UK 2022-10-10 /pmc/articles/PMC9550790/ /pubmed/36216914 http://dx.doi.org/10.1038/s41598-022-21358-2 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Muraro, Martina
Sherpa, Stéphanie
Barzaghi, Benedetta
Bombi, Pierluigi
Borgatti, Danilo
Di Canio, Viola
Dalpasso, Andrea
Falaschi, Mattia
Gambioli, Benedetta
Manenti, Raoul
Marta, Silvio
Momigliano, Paolo
Nanni, Veronica
Pardo, Claudio
Parrino, Elia Lo
Scali, Stefano
Storniolo, Federico
Vignoli, Leonardo
Zuffi, Marco A. L.
Sacchi, Roberto
Salvi, Daniele
Ficetola, Gentile Francesco
Condition- and context-dependent variation of sexual dimorphism across lizard populations at different spatial scales
title Condition- and context-dependent variation of sexual dimorphism across lizard populations at different spatial scales
title_full Condition- and context-dependent variation of sexual dimorphism across lizard populations at different spatial scales
title_fullStr Condition- and context-dependent variation of sexual dimorphism across lizard populations at different spatial scales
title_full_unstemmed Condition- and context-dependent variation of sexual dimorphism across lizard populations at different spatial scales
title_short Condition- and context-dependent variation of sexual dimorphism across lizard populations at different spatial scales
title_sort condition- and context-dependent variation of sexual dimorphism across lizard populations at different spatial scales
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9550790/
https://www.ncbi.nlm.nih.gov/pubmed/36216914
http://dx.doi.org/10.1038/s41598-022-21358-2
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