Cargando…
Personality, sperm traits and a test for their combined dependence on male condition in guppies
There is evidence that animal personality can affect sexual selection, with studies reporting that male behavioural types are associated with success during pre- and post-copulatory sexual selection. Given these links between personality and sexual traits, and the accumulating evidence that their ex...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9156929/ https://www.ncbi.nlm.nih.gov/pubmed/35706668 http://dx.doi.org/10.1098/rsos.220269 |
_version_ | 1784718539049926656 |
---|---|
author | Galluccio, Edward Lymbery, Rowan A. Wilson, Alastair Evans, Jonathan P. |
author_facet | Galluccio, Edward Lymbery, Rowan A. Wilson, Alastair Evans, Jonathan P. |
author_sort | Galluccio, Edward |
collection | PubMed |
description | There is evidence that animal personality can affect sexual selection, with studies reporting that male behavioural types are associated with success during pre- and post-copulatory sexual selection. Given these links between personality and sexual traits, and the accumulating evidence that their expression can depend on an individual's dietary status (i.e. condition), a novel prediction is that changes in a male's diet should alter both the average expression of personality and sexual traits, and their covariance. We tested these predictions using the guppy Poecilia reticulata, a species previously shown to exhibit strong condition dependence in ejaculate traits and a positive correlation between sperm production and individual variation in boldness. Contrary to expectation, we found that dietary restriction—when administered in mature adult males—did not affect the expression of either behavioural (boldness and activity) or ejaculate traits, although we did find that males subjected to dietary stress exhibited a positive association between sperm velocity and boldness that was not apparent in the unrestricted diet group. This latter finding points to possible context-dependent patterns of covariance between sexually selected traits and personalities, which may have implications for patterns of selection and evolutionary processes under fluctuating environmental conditions. |
format | Online Article Text |
id | pubmed-9156929 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-91569292022-06-14 Personality, sperm traits and a test for their combined dependence on male condition in guppies Galluccio, Edward Lymbery, Rowan A. Wilson, Alastair Evans, Jonathan P. R Soc Open Sci Organismal and Evolutionary Biology There is evidence that animal personality can affect sexual selection, with studies reporting that male behavioural types are associated with success during pre- and post-copulatory sexual selection. Given these links between personality and sexual traits, and the accumulating evidence that their expression can depend on an individual's dietary status (i.e. condition), a novel prediction is that changes in a male's diet should alter both the average expression of personality and sexual traits, and their covariance. We tested these predictions using the guppy Poecilia reticulata, a species previously shown to exhibit strong condition dependence in ejaculate traits and a positive correlation between sperm production and individual variation in boldness. Contrary to expectation, we found that dietary restriction—when administered in mature adult males—did not affect the expression of either behavioural (boldness and activity) or ejaculate traits, although we did find that males subjected to dietary stress exhibited a positive association between sperm velocity and boldness that was not apparent in the unrestricted diet group. This latter finding points to possible context-dependent patterns of covariance between sexually selected traits and personalities, which may have implications for patterns of selection and evolutionary processes under fluctuating environmental conditions. The Royal Society 2022-06-01 /pmc/articles/PMC9156929/ /pubmed/35706668 http://dx.doi.org/10.1098/rsos.220269 Text en © 2022 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Organismal and Evolutionary Biology Galluccio, Edward Lymbery, Rowan A. Wilson, Alastair Evans, Jonathan P. Personality, sperm traits and a test for their combined dependence on male condition in guppies |
title | Personality, sperm traits and a test for their combined dependence on male condition in guppies |
title_full | Personality, sperm traits and a test for their combined dependence on male condition in guppies |
title_fullStr | Personality, sperm traits and a test for their combined dependence on male condition in guppies |
title_full_unstemmed | Personality, sperm traits and a test for their combined dependence on male condition in guppies |
title_short | Personality, sperm traits and a test for their combined dependence on male condition in guppies |
title_sort | personality, sperm traits and a test for their combined dependence on male condition in guppies |
topic | Organismal and Evolutionary Biology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9156929/ https://www.ncbi.nlm.nih.gov/pubmed/35706668 http://dx.doi.org/10.1098/rsos.220269 |
work_keys_str_mv | AT galluccioedward personalityspermtraitsandatestfortheircombineddependenceonmaleconditioninguppies AT lymberyrowana personalityspermtraitsandatestfortheircombineddependenceonmaleconditioninguppies AT wilsonalastair personalityspermtraitsandatestfortheircombineddependenceonmaleconditioninguppies AT evansjonathanp personalityspermtraitsandatestfortheircombineddependenceonmaleconditioninguppies |