Evolutionary predictors of the specific colors of birds.

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dc.citation.issue34
dc.citation.volume120
dc.contributor.authorDelhey K
dc.contributor.authorValcu M
dc.contributor.authorMuck C
dc.contributor.authorDale J
dc.contributor.authorKempenaers B
dc.contributor.editorLosos J
dc.coverage.spatialUnited States
dc.date.accessioned2024-11-13T21:34:52Z
dc.date.available2024-11-13T21:34:52Z
dc.date.issued2023-08-14
dc.description.abstractAnimal coloration is one of the most conspicuous aspects of human-perceived organismal diversity, yet also one of the least understood. In particular, explaining why species have specific colors (e.g., blue vs. red) has proven elusive. Here, we quantify for nearly all bird species, the proportion of the body covered by each of 12 human-visible color categories, and test whether existing theory can predict the direction of color evolution. The most common colors are black, white, gray and brown, while the rarest are green, blue, purple, and red. Males have more blue, purple, red, or black, whereas females have more yellow, brown, or gray. Sexual dichromatism is partly due to sexual selection favoring ornamental colors in males but not in females. However, sexual selection also correlated positively with brown in both sexes. Strong social selection favors red and black, colors used in agonistic signaling, with the strongest effects in females. Reduced predation risk selects against cryptic colors (e.g., brown) and favors specific ornamental colors (e.g., black). Nocturnality is mainly associated with brown. The effects of habitat use support the sensory drive theory for camouflage and signaling. Darker colors are more common in species living in wet and cold climates, matching ecogeographical rules. Our study unambiguously supports existing theories of color evolution across an entire class of vertebrates, but much variation remains unexplained.
dc.description.confidentialfalse
dc.format.paginatione2217692120-
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/37579151
dc.identifier.citationDelhey K, Valcu M, Muck C, Dale J, Kempenaers B. (2023). Evolutionary predictors of the specific colors of birds.. Proc Natl Acad Sci U S A. 120. 34. (pp. e2217692120-).
dc.identifier.doi10.1073/pnas.2217692120
dc.identifier.eissn1091-6490
dc.identifier.elements-typejournal-article
dc.identifier.issn0027-8424
dc.identifier.numbere2217692120
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/71994
dc.languageeng
dc.publisherNational Academy of Sciences
dc.publisher.urihttp://pnas.org/doi/10.1073/pnas.2217692120
dc.relation.isPartOfProc Natl Acad Sci U S A
dc.rights(c) 2023 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectcamouflage
dc.subjectclimate
dc.subjectsensory drive
dc.subjectsexual selection
dc.subjectsocial selection
dc.subjectMale
dc.subjectHumans
dc.subjectAnimals
dc.subjectFemale
dc.subjectColor
dc.subjectBirds
dc.subjectSex Characteristics
dc.subjectPigmentation
dc.titleEvolutionary predictors of the specific colors of birds.
dc.typeJournal article
pubs.elements-id479816
pubs.organisational-groupCollege of Health
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