Species divergence in sexually selected traits: increase in song elaboration is related to decrease in plumage ornamentation in finches

Evolution; International Journal of Organic Evolution
A V BadyaevByron V Weckwort

Abstract

Elaborate plumage and complex songs of male birds are two of the best-known examples of sexually selected traits, yet the interaction between these traits is poorly understood. Theory suggests that among a suite of potential displays, animals will emphasize traits that are most conspicuous, least costly, or best signal condition and reduce display of other traits. Here we examined the relationship between song and plumage elaborations in cardueline finches, songbirds that are highly variable in plumage displays and songs, but that share a similar mating system. We statistically controlled for body mass, habitat characteristics, and phylogenetic relationships and found that across species song complexity was strongly negatively related to elaboration of plumage ornamentation. When plumage coloration was partitioned into carotenoid-based and melanin-based components, song complexity was negatively related to elaboration of male carotenoid-based coloration but unrelated to elaboration of melanin-based coloration. These observations support the idea that, for condition-dependent traits, animal species trade off trait expression in response to changes in the costs or the information content of these traits. We discuss several altern...Continue Reading

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Citations

Jul 9, 2008·Oecologia·Emilie C Snell-Rood, Alexander V Badyaev
Jul 24, 2013·Behavioural Processes·Hiroko Kagawa, Masayo Soma
Jul 28, 2010·Biology Letters·Dave Shutler
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Mar 30, 2012·Proceedings. Biological Sciences·William E WagnerAlexandra L Basolo
Feb 23, 2008·Journal of Theoretical Biology·John L Locke
Jul 4, 2009·Evolution; International Journal of Organic Evolution·J Jordan Price, Luke M Whalen
Feb 7, 2009·Journal of Evolutionary Biology·B VanhooydonckD J Irschick
Feb 13, 2009·Journal of Evolutionary Biology·J F OrnelasA Espinosa de los Monteros
Feb 11, 2011·Journal of Evolutionary Biology·I GalvánJ Erritzøe
Jul 23, 2013·Journal of Evolutionary Biology·G-J YanS-J Fu
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Sep 1, 2005·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·K J McGraw
Sep 18, 2015·BMC Evolutionary Biology·Huateng Huang, Daniel L Rabosky
Jan 31, 2018·Evolution; International Journal of Organic Evolution·Christopher J ClarkRichard O Prum
Dec 15, 2017·Ecology and Evolution·Jean-François PongeÉric Guilbert
Apr 12, 2018·The Journal of Animal Ecology·Meredith C Miles, Matthew J Fuxjager
Dec 18, 2018·PLoS Biology·Chad M Eliason
Jan 28, 2019·Journal of Evolutionary Biology·Cristina Romero-DiazEmília P Martins
Feb 25, 2020·Biological Reviews of the Cambridge Philosophical Society·John J Wiens, E Tuschhoff
Apr 1, 2021·Proceedings. Biological Sciences·Cristina Romero-DiazEmília P Martins
Aug 13, 2021·Evolution; International Journal of Organic Evolution·Renata BecoGustavo A Bravo

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