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Haemosporidian parasites and incubation period influence plumage coloration in tanagers (Passeriformes: Thraupidae)
Journal article   Open access   Peer reviewed

Haemosporidian parasites and incubation period influence plumage coloration in tanagers (Passeriformes: Thraupidae)

Victor Aguiar de Souza Penha, Fabricius Maia Chaves Bicalho Domingos, Alan Fecchio, Jeffrey A. Bell, Jason D. Weckstein, Robert E. Ricklefs, Erika Martins Braga, Patrícia de Abreu Moreira, Letícia Soares, Steven Latta, …
Proceedings of the Royal Society. B, Biological sciences, v 289(1987), pp 20221283-20221283
23 Nov 2022
url
https://doi.org/10.1098/rspb.2022.1283View
Published, Version of Record (VoR)Maybe Open Access (Publisher Bronze) Open

Abstract

Female Ornamentation Parasite Prevalence Sexual Dichromatism Sexual Selection Ecology
Birds are highly visually oriented and use plumage coloration as an important signalling trait in social communication. Hence, males and females may have different patterns of plumage coloration, a phenomenon known as sexual dichromatism. Because males tend to have more complex plumages, sexual dichromatism is usually attributed to female choice. However, plumage coloration is partly condition-dependent; therefore, other selective pressures affecting individuals' success may also drive the evolution of this trait. Here, we used tanagers as model organisms to study the relationships between dichromatism and plumage coloration complexity in tanagers with parasitism by haemosporidians, investment in reproduction and life-history traits. We screened blood samples from 2849 individual birds belonging to 52 tanager species to detect haemosporidian parasites. We used publicly available data for plumage coloration, bird phylogeny and life-history traits to run phylogenetic generalized least-square models of plumage dichromatism and complexity in male and female tanagers. We found that plumage dichromatism was more pronounced in bird species with a higher prevalence of haemosporidian parasites. Lastly, high plumage coloration complexity in female tanagers was associated with a longer incubation period. Our results indicate an association between haemosporidian parasites and plumage coloration suggesting that parasites impact mechanisms of sexual selection, increasing differences between the sexes, and social (non-sexual) selection, driving females to develop more complex coloration.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Biology
Ecology
Evolutionary Biology
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