Coevolution of relative brain size and life expectancy in parrots

dc.contributor.authorSmeele, Simeon Q.
dc.contributor.authorConde, Dalia A.
dc.contributor.authorBaudisch, Annette
dc.contributor.authorBruslund, Simon
dc.contributor.authorIwaniuk, Andrew N.
dc.contributor.authorStaerk, Johanna
dc.contributor.authorWright, Timothy
dc.contributor.authorYoung, Anna M.
dc.contributor.authorMcElreath, Mary Brooke
dc.contributor.authorAplin, Lucy
dc.date.accessioned2023-07-19T23:36:58Z
dc.date.available2023-07-19T23:36:58Z
dc.date.issued2022
dc.date.updated2022-05-15T08:18:04Z
dc.description.abstractPrevious studies have demonstrated a correlation between longevity and brain size in a variety of taxa. Little research has been devoted to understanding this link in parrots; yet parrots are well-known for both their exceptionally long lives and cognitive complexity. We employed a large-scale comparative analysis that investigated the influence of brain size and life-history variables on longevity in parrots. Specifically, we addressed two hypotheses for evolutionary drivers of longevity: the cognitivebuffer hypothesis, which proposes that increased cognitive abilities enable longer lifespans, and the expensive brain hypothesis, which holds that increases in lifespan are caused by prolonged developmental time of, and increased parental investment in, large-brained offspring. We estimated life expectancy from detailed zoo records for 133 818 individuals across 244 parrot species. Using a principled Bayesian approach that addresses data uncertainty and imputation of missing values, we found a consistent correlation between relative brain size and life expectancy in parrots. This correlation was best explained by a direct effect of relative brain size. Notably, we found no effects of developmental time, clutch size or age at first reproduction. Our results suggest that selection for enhanced cognitive abilities in parrots has in turn promoted longer lifespans.en_AU
dc.description.sponsorshipThis project was possible thanks to the financial support of the sponsor members of the Species360 Conservation Science Alliance (Copenhagen Zoo, the World Association of Zoos and Aquariums and the Wildlife Reserves of Singapore), the Interdisciplinary Centre on Population Dynamics and the Biology Department at the University of Southern Denmark. We would like to thank Species360 for granting access to the data under permission number no. 86892.This work was supported by the Max Planck Society. L.A. was funded by a Max Planck Independent Group Leader Fellowship.S.Q.S. received additional funding from the International MaxPlanck Research School for Organismal Biologyen_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0962-8452en_AU
dc.identifier.urihttp://hdl.handle.net/1885/294439
dc.language.isoen_AUen_AU
dc.provenancePublished by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the originalauthor and source are credited.en_AU
dc.publisherRoyal Society of Londonen_AU
dc.rights© 2022 The Authors.en_AU
dc.rights.licenseCreative Commons Attribution Licenseen_AU
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_AU
dc.sourceProceedings of the Royal Society of London Series B: Biological Sciencesen_AU
dc.subjectPsittaciformesen_AU
dc.subjectlongevityen_AU
dc.subjectcognitive evolutionen_AU
dc.subjectBayesian structural equation modelen_AU
dc.subjectcognitivebuffer hypothesisen_AU
dc.subjectexpensive brain hypothesisen_AU
dc.titleCoevolution of relative brain size and life expectancy in parrotsen_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.issue1971en_AU
local.bibliographicCitation.lastpage8en_AU
local.bibliographicCitation.startpage1en_AU
local.contributor.affiliationSmeele, Simeon Q., Max Planck Institute of Animal Behavioren_AU
local.contributor.affiliationConde, Dalia A., University of Southern Denmarken_AU
local.contributor.affiliationBaudisch, Annette, University of Southern Denmarken_AU
local.contributor.affiliationBruslund, Simon, European Association of Zoos and Aquariaen_AU
local.contributor.affiliationIwaniuk, Andrew N., University of Lethbridgeen_AU
local.contributor.affiliationStaerk, Johanna, University of Southern Denmarken_AU
local.contributor.affiliationWright, Timothy, New Mexico State Universityen_AU
local.contributor.affiliationYoung, Anna M., The Living Desert Zoo and Gardens Palm Deserten_AU
local.contributor.affiliationMcElreath, Mary Brooke, Max Planck Institute of Animal Behavioren_AU
local.contributor.affiliationAplin, Lucy, College of Science, ANUen_AU
local.contributor.authoremailu2541656@anu.edu.auen_AU
local.contributor.authoruidAplin, Lucy, u2541656en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor310405 - Evolutionary ecologyen_AU
local.identifier.ariespublicationu9511635xPUB2317en_AU
local.identifier.citationvolume289en_AU
local.identifier.doi10.1098/rspb.2021.2397en_AU
local.identifier.uidSubmittedByu9511635en_AU
local.publisher.urlhttps://royalsocietypublishing.org/en_AU
local.type.statusPublished Versionen_AU

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