Wild common crossbills produce redder body feathers when their wings are clipped
[Background] The animal signaling theory posits that conspicuous colorations exhibited by many animals have evolved as reliable signals of individual quality. Red carotenoid-based ornaments may depend on enzymatic transformations (oxidation) of dietary yellow carotenoids, which could occur in the in...
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Online Access: | http://hdl.handle.net/10261/281788 https://doi.org/10.1186/s40850-022-00150-9 https://doi.org/10.13039/501100003339 https://doi.org/10.13039/501100004837 |
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ftcsic:oai:digital.csic.es:10261/281788 2024-02-11T10:02:16+01:00 Wild common crossbills produce redder body feathers when their wings are clipped Fernández-Eslava, Blanca Cantarero, Alejandro Alonso, Daniel Alonso-Álvarez, Carlos Ministerio de Ciencia e Innovación (España) Consejo Superior de Investigaciones Científicas (España) 2022-08-23 http://hdl.handle.net/10261/281788 https://doi.org/10.1186/s40850-022-00150-9 https://doi.org/10.13039/501100003339 https://doi.org/10.13039/501100004837 en eng #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MICINN//PID2019‑109303GB-I00 Publisher's version https://doi.org/10.1186/s40850‑022‑00150‑9 Sí BMC Zoology 7: 47 (2022) 2056-3132 http://hdl.handle.net/10261/281788 doi:10.1186/s40850-022-00150-9 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100004837 open Animal coloration Carotenoid‑based ornaments Flying effort Flight workload Shared‑pathway hypothesis Sexual signaling artículo 2022 ftcsic https://doi.org/10.1186/s40850-022-00150-910.13039/50110000333910.13039/50110000483710.1186/s40850‑022‑00150‑9 2024-01-16T11:30:10Z [Background] The animal signaling theory posits that conspicuous colorations exhibited by many animals have evolved as reliable signals of individual quality. Red carotenoid-based ornaments may depend on enzymatic transformations (oxidation) of dietary yellow carotenoids, which could occur in the inner mitochondrial membrane (IMM). Thus, carotenoid ketolation and cell respiration could share the same biochemical pathways. Accordingly, the level of trait expression (redness) would directly reveal the efficiency of individuals’ metabolism and, hence, the bearer quality in an unfalsifiable way. Different avian studies have described that the flying effort may induce oxidative stress. A redox metabolism modified during the flight could thus influence the carotenoid conversion rate and, ultimately, animal coloration. Here, we aimed to infer the link between red carotenoid-based ornament expression and flight metabolism by increasing flying effort in wild male common crossbills Loxia curvirostra (Linnaeus). In this order, 295 adult males were captured with mist nets in an Iberian population during winter. Approximately half of the birds were experimentally handicapped through wing feather clipping to increase their flying effort, the other half being used as a control group. To stimulate the plumage regrown of a small surface during a short time-lapse, we also plucked the rump feathers from all the birds. [Results] A fraction of the birds with fully grown rump feathers (34 individuals) could be recaptured during the subsequent weeks. We did not detect any significant bias in recovery rates and morphological variables in this reduced subsample. However, among recaptured birds, individuals with experimentally impaired flying capacity showed body mass loss, whereas controls showed a trend to increase their weight. Moreover, clipped males showed redder feathers in the newly regrown rump area compared to controls. [Conclusions] The results suggest that wing-clipped individuals could have endured higher energy ... Article in Journal/Newspaper Avian Studies Digital.CSIC (Spanish National Research Council) BMC Zoology 7 1 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Animal coloration Carotenoid‑based ornaments Flying effort Flight workload Shared‑pathway hypothesis Sexual signaling |
spellingShingle |
Animal coloration Carotenoid‑based ornaments Flying effort Flight workload Shared‑pathway hypothesis Sexual signaling Fernández-Eslava, Blanca Cantarero, Alejandro Alonso, Daniel Alonso-Álvarez, Carlos Wild common crossbills produce redder body feathers when their wings are clipped |
topic_facet |
Animal coloration Carotenoid‑based ornaments Flying effort Flight workload Shared‑pathway hypothesis Sexual signaling |
description |
[Background] The animal signaling theory posits that conspicuous colorations exhibited by many animals have evolved as reliable signals of individual quality. Red carotenoid-based ornaments may depend on enzymatic transformations (oxidation) of dietary yellow carotenoids, which could occur in the inner mitochondrial membrane (IMM). Thus, carotenoid ketolation and cell respiration could share the same biochemical pathways. Accordingly, the level of trait expression (redness) would directly reveal the efficiency of individuals’ metabolism and, hence, the bearer quality in an unfalsifiable way. Different avian studies have described that the flying effort may induce oxidative stress. A redox metabolism modified during the flight could thus influence the carotenoid conversion rate and, ultimately, animal coloration. Here, we aimed to infer the link between red carotenoid-based ornament expression and flight metabolism by increasing flying effort in wild male common crossbills Loxia curvirostra (Linnaeus). In this order, 295 adult males were captured with mist nets in an Iberian population during winter. Approximately half of the birds were experimentally handicapped through wing feather clipping to increase their flying effort, the other half being used as a control group. To stimulate the plumage regrown of a small surface during a short time-lapse, we also plucked the rump feathers from all the birds. [Results] A fraction of the birds with fully grown rump feathers (34 individuals) could be recaptured during the subsequent weeks. We did not detect any significant bias in recovery rates and morphological variables in this reduced subsample. However, among recaptured birds, individuals with experimentally impaired flying capacity showed body mass loss, whereas controls showed a trend to increase their weight. Moreover, clipped males showed redder feathers in the newly regrown rump area compared to controls. [Conclusions] The results suggest that wing-clipped individuals could have endured higher energy ... |
author2 |
Ministerio de Ciencia e Innovación (España) Consejo Superior de Investigaciones Científicas (España) |
format |
Article in Journal/Newspaper |
author |
Fernández-Eslava, Blanca Cantarero, Alejandro Alonso, Daniel Alonso-Álvarez, Carlos |
author_facet |
Fernández-Eslava, Blanca Cantarero, Alejandro Alonso, Daniel Alonso-Álvarez, Carlos |
author_sort |
Fernández-Eslava, Blanca |
title |
Wild common crossbills produce redder body feathers when their wings are clipped |
title_short |
Wild common crossbills produce redder body feathers when their wings are clipped |
title_full |
Wild common crossbills produce redder body feathers when their wings are clipped |
title_fullStr |
Wild common crossbills produce redder body feathers when their wings are clipped |
title_full_unstemmed |
Wild common crossbills produce redder body feathers when their wings are clipped |
title_sort |
wild common crossbills produce redder body feathers when their wings are clipped |
publishDate |
2022 |
url |
http://hdl.handle.net/10261/281788 https://doi.org/10.1186/s40850-022-00150-9 https://doi.org/10.13039/501100003339 https://doi.org/10.13039/501100004837 |
genre |
Avian Studies |
genre_facet |
Avian Studies |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MICINN//PID2019‑109303GB-I00 Publisher's version https://doi.org/10.1186/s40850‑022‑00150‑9 Sí BMC Zoology 7: 47 (2022) 2056-3132 http://hdl.handle.net/10261/281788 doi:10.1186/s40850-022-00150-9 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100004837 |
op_rights |
open |
op_doi |
https://doi.org/10.1186/s40850-022-00150-910.13039/50110000333910.13039/50110000483710.1186/s40850‑022‑00150‑9 |
container_title |
BMC Zoology |
container_volume |
7 |
container_issue |
1 |
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1790598206549131264 |