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Plumage color degradation indicates reproductive effort: an experiment
Plumage color has traditionally been regarded as a static ornamental trait, but evidence is accumulating for significant color changes without molt that typically reduce the conspicuousness of ornamentation. In some species, the social partner seems to increase its reproductive investment if the col...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10618437/ https://www.ncbi.nlm.nih.gov/pubmed/37907494 http://dx.doi.org/10.1038/s41598-023-45348-0 |
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author | Hegyi, Gergely Laczi, Miklós Szabó, Gyula Sarkadi, Fanni Török, János |
author_facet | Hegyi, Gergely Laczi, Miklós Szabó, Gyula Sarkadi, Fanni Török, János |
author_sort | Hegyi, Gergely |
collection | PubMed |
description | Plumage color has traditionally been regarded as a static ornamental trait, but evidence is accumulating for significant color changes without molt that typically reduce the conspicuousness of ornamentation. In some species, the social partner seems to increase its reproductive investment if the color trait is experimentally enhanced, suggesting that color change could act as a signal. However, the information content of this signal is so far unclear. For example, birds in poor condition or making greater effort may deteriorate more severely. We used brood size manipulations to alter the reproductive effort of male and female collared flycatchers Ficedula albicollis. Both sexes showed less severe decline in some reflectance attribute of their white breast when their brood was experimentally reduced. In each sex, greater deterioration of the reflectance trait affected by the manipulation was accompanied by increased feeding rate by the partner. These feeding patterns do not prove, but are consistent with, a compensatory response by the partner to induced degradation. The manipulation effects on color change we detected confirm for the first time that plumage color deterioration can indicate current reproductive effort, thereby providing a potential fitness advantage to social partners that react to such deterioration. |
format | Online Article Text |
id | pubmed-10618437 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-106184372023-11-02 Plumage color degradation indicates reproductive effort: an experiment Hegyi, Gergely Laczi, Miklós Szabó, Gyula Sarkadi, Fanni Török, János Sci Rep Article Plumage color has traditionally been regarded as a static ornamental trait, but evidence is accumulating for significant color changes without molt that typically reduce the conspicuousness of ornamentation. In some species, the social partner seems to increase its reproductive investment if the color trait is experimentally enhanced, suggesting that color change could act as a signal. However, the information content of this signal is so far unclear. For example, birds in poor condition or making greater effort may deteriorate more severely. We used brood size manipulations to alter the reproductive effort of male and female collared flycatchers Ficedula albicollis. Both sexes showed less severe decline in some reflectance attribute of their white breast when their brood was experimentally reduced. In each sex, greater deterioration of the reflectance trait affected by the manipulation was accompanied by increased feeding rate by the partner. These feeding patterns do not prove, but are consistent with, a compensatory response by the partner to induced degradation. The manipulation effects on color change we detected confirm for the first time that plumage color deterioration can indicate current reproductive effort, thereby providing a potential fitness advantage to social partners that react to such deterioration. Nature Publishing Group UK 2023-10-31 /pmc/articles/PMC10618437/ /pubmed/37907494 http://dx.doi.org/10.1038/s41598-023-45348-0 Text en © The Author(s) 2023 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 Hegyi, Gergely Laczi, Miklós Szabó, Gyula Sarkadi, Fanni Török, János Plumage color degradation indicates reproductive effort: an experiment |
title | Plumage color degradation indicates reproductive effort: an experiment |
title_full | Plumage color degradation indicates reproductive effort: an experiment |
title_fullStr | Plumage color degradation indicates reproductive effort: an experiment |
title_full_unstemmed | Plumage color degradation indicates reproductive effort: an experiment |
title_short | Plumage color degradation indicates reproductive effort: an experiment |
title_sort | plumage color degradation indicates reproductive effort: an experiment |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10618437/ https://www.ncbi.nlm.nih.gov/pubmed/37907494 http://dx.doi.org/10.1038/s41598-023-45348-0 |
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