Climate Influences Fledgling Sex Ratio and Sex-Specific Dispersal in a Seabird
Climate influences the dynamics of natural populations by direct effects over habitat quality but also modulating the phenotypic responses of organisms’ life-history traits. These responses may be different in males and females, particularly in dimorphic species, due to sex-specific requirements or...
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ftpubmed:oai:pubmedcentral.nih.gov:3738640 2023-05-15T17:32:20+02:00 Climate Influences Fledgling Sex Ratio and Sex-Specific Dispersal in a Seabird Barros, Álvaro Álvarez, David Velando, Alberto 2013-08-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3738640 http://www.ncbi.nlm.nih.gov/pubmed/23951144 https://doi.org/10.1371/journal.pone.0071358 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3738640 http://www.ncbi.nlm.nih.gov/pubmed/23951144 http://dx.doi.org/10.1371/journal.pone.0071358 This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2013 ftpubmed https://doi.org/10.1371/journal.pone.0071358 2013-09-05T03:39:57Z Climate influences the dynamics of natural populations by direct effects over habitat quality but also modulating the phenotypic responses of organisms’ life-history traits. These responses may be different in males and females, particularly in dimorphic species, due to sex-specific requirements or constraints. Here, in a coastal seabird, the European shag (Phalacrocorax aristotelis), we studied the influence of climate (North Atlantic Oscillation, NAO; Sea Surface Temperature, SST) on two sex-related population parameters: fledgling sex ratio and sex-specific dispersal. We found that fledgling sex ratio was female skewed in NAO-positive years and male skewed in NAO-negative years. Accordingly, females dispersed a longer distance in NAO-positive years when females were overproduced, and on the contrary, males dispersed more in NAO-negative years. Overall, our findings provide rare evidence on vertebrates with genetic sex determination that climate conditions may govern population dynamics by affecting sex-specific density and dispersal. Text North Atlantic North Atlantic oscillation PubMed Central (PMC) PLoS ONE 8 8 e71358 |
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Research Article Barros, Álvaro Álvarez, David Velando, Alberto Climate Influences Fledgling Sex Ratio and Sex-Specific Dispersal in a Seabird |
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Research Article |
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Climate influences the dynamics of natural populations by direct effects over habitat quality but also modulating the phenotypic responses of organisms’ life-history traits. These responses may be different in males and females, particularly in dimorphic species, due to sex-specific requirements or constraints. Here, in a coastal seabird, the European shag (Phalacrocorax aristotelis), we studied the influence of climate (North Atlantic Oscillation, NAO; Sea Surface Temperature, SST) on two sex-related population parameters: fledgling sex ratio and sex-specific dispersal. We found that fledgling sex ratio was female skewed in NAO-positive years and male skewed in NAO-negative years. Accordingly, females dispersed a longer distance in NAO-positive years when females were overproduced, and on the contrary, males dispersed more in NAO-negative years. Overall, our findings provide rare evidence on vertebrates with genetic sex determination that climate conditions may govern population dynamics by affecting sex-specific density and dispersal. |
format |
Text |
author |
Barros, Álvaro Álvarez, David Velando, Alberto |
author_facet |
Barros, Álvaro Álvarez, David Velando, Alberto |
author_sort |
Barros, Álvaro |
title |
Climate Influences Fledgling Sex Ratio and Sex-Specific Dispersal in a Seabird |
title_short |
Climate Influences Fledgling Sex Ratio and Sex-Specific Dispersal in a Seabird |
title_full |
Climate Influences Fledgling Sex Ratio and Sex-Specific Dispersal in a Seabird |
title_fullStr |
Climate Influences Fledgling Sex Ratio and Sex-Specific Dispersal in a Seabird |
title_full_unstemmed |
Climate Influences Fledgling Sex Ratio and Sex-Specific Dispersal in a Seabird |
title_sort |
climate influences fledgling sex ratio and sex-specific dispersal in a seabird |
publisher |
Public Library of Science |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3738640 http://www.ncbi.nlm.nih.gov/pubmed/23951144 https://doi.org/10.1371/journal.pone.0071358 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3738640 http://www.ncbi.nlm.nih.gov/pubmed/23951144 http://dx.doi.org/10.1371/journal.pone.0071358 |
op_rights |
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0071358 |
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PLoS ONE |
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8 |
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e71358 |
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1766130408804581376 |