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dc.contributor.authorMatthews, Luke J.
dc.contributor.authorArnold, Christian
dc.contributor.authorMachanda, Zarin Pearl
dc.contributor.authorNunn, Charles Lindsay
dc.date.accessioned2012-02-22T18:51:51Z
dc.date.issued2011
dc.identifier.citationMatthews, Luke J., Christian Arnold, Zarin Machanda, and Charles L. Nunn. 2011. Primate extinction risk and historical patterns of speciation and extinction in relation to body mass. Proceedings of the Royal Society of London B 278(1709): 1256-1263.en_US
dc.identifier.issn0080-4649en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:8205338
dc.description.abstractBody mass is thought to influence diversification rates, but previous studies have produced ambiguous results. We investigated patterns of diversification across 100 trees obtained from a new Bayesian inference of primate phylogeny that sampled trees in proportion to their posterior probabilities. First, we used simulations to assess the validity of previous studies that used linear models to investigate the links between IUCN Red List status and body mass. These analyses support the use of linear models for ordinal ranked data on threat status, and phylogenetic generalized linear models revealed a significant positive correlation between current extinction risk and body mass across our tree block. We then investigated historical patterns of speciation and extinction rates using a recently developed maximum-likelihood method. Specifically, we predicted that body mass correlates positively with extinction rate because larger bodied organisms reproduce more slowly, and body mass correlates negatively with speciation rate because smaller bodied organisms are better able to partition niche space. We failed to find evidence that extinction rates covary with body mass across primate phylogeny. Similarly, the speciation rate was generally unrelated to body mass, except in some tests that indicated an increase in the speciation rate with increasing body mass. Importantly, we discovered that our data violated a key assumption of sample randomness with respect to body mass. After correcting for this bias, we found no association between diversification rates and mass.en_US
dc.description.sponsorshipHuman Evolutionary Biologyen_US
dc.language.isoen_USen_US
dc.publisherRoyal Society of Londonen_US
dc.relation.isversionofdoi:10.1098/rspb.2010.1489en_US
dash.licenseOAP
dc.subjectspeciationen_US
dc.subjectextinctionen_US
dc.subjectIUCN Red Listen_US
dc.subjectbody massen_US
dc.subjectdiversificationen_US
dc.subjectprimatesen_US
dc.titlePrimate Extinction Risk and Historical Patterns of Speciation and Extinction in Relation to Body Massen_US
dc.typeJournal Articleen_US
dc.description.versionAccepted Manuscripten_US
dc.relation.journalProceedings of the Royal Society of London Ben_US
dash.depositing.authorNunn, Charles Lindsay
dc.date.available2012-02-22T18:51:51Z
dc.identifier.doi10.1098/rspb.2010.1489*
dash.contributor.affiliatedMachanda, Zarin
dash.contributor.affiliatedArnold, C
dash.contributor.affiliatedNunn, Charles


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