Title:
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Superciliums in white-eared hummingbirds as badges of status 2 signaling dominance
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Author:
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González-García, Juan Manuel; Lara, Carlos; Quesada, Javier; Chávez-Zichinelli, Carlos A.; Serrano-Meneses, Martín A.
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Abstract:
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The role of badges as indicators of contest ability has been previously described. In hummingbirds, the exhibition of a badge is expected to save energy expenditure in agonistic interactions and to favor energy intake. Here, we investigate whether variable supercilium size in the white-eared hummingbird has a role in dominance status signaling. Firstly, 45 hummingbird males were captured and their superciliums were photographed to investigate variation in size and any possible allometric relationships. Secondly, 42 male birds were used to analyze whether the supercilium has a role in dominance status signaling in a dyadic contest. We found that supercilium size varied continuously but that despite variability between individuals, there was no relationship between supercilium size and body size. However, our dyad experiment indicated that birds with larger badges were able to make more visits to the feeders than individuals with smaller badges. We suggest a status signaling function of the supercilium. |
Publication date:
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2018-04-03 |
Subject (UDC):
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59 - Zoologia |
Subject(s):
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Ocells Colibrís Plomes Etologia |
Rights:
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© 2020 Springer Nature Switzerland AG. This is a post-peer-review, pre-copyedit version of an article published in The Science of Nature. The final authenticated version is available online at https://link.springer.com/article/10.1007/s00114-018-1553-1. Terms of use at https://www.springer.com/gp/open-access/publication-policies/aam-terms-of-use. |
Pages:
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33 p. |
Document type:
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Article Article - Accepted version |
DOI:
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10.1007/s00114-018-1553-1
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Published by:
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Springer
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Publish at:
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The Science of Nature, 105, 31 (2018)
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Share:
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