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dc.contributor.authorCooper, Natalie
dc.contributor.authorKamilar, Jason
dc.contributor.authorNunn, Charles Lindsay
dc.date.accessioned2012-07-20T15:51:04Z
dc.date.issued2012-07-20
dc.identifier.citationCooper, Natalie, Jason M. Kamilar, and Charles L. Nunn. 2012. Host longevity and parasite species richness in mammals. PLoS ONE 7(8): e42190.en_US
dc.identifier.issn1932-6203en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:9282123
dc.description.abstractHosts and parasites co-evolve, with each lineage exerting selective pressures on the other. Thus, parasites may influence host life-history characteristics, such as longevity, and simultaneously host life-history may influence parasite diversity. If parasite burden causes increased mortality, we expect a negative association between host longevity and parasite species richness. Alternatively, if long-lived species represent a more stable environment for parasite establishment, host longevity and parasite species richness may show a positive association. We tested these two opposing predictions in carnivores, primates and terrestrial ungulates using phylogenetic comparative methods and controlling for the potentially confounding effects of sampling effort and body mass. We also tested whether increased host longevity is associated with increased immunity, using white blood cell counts as a proxy for immune investment. Our analyses revealed weak relationships between parasite species richness and longevity. We found a significant negative relationship between longevity and parasite species richness for ungulates, but no significant associations in carnivores or primates. We also found no evidence for a relationship between immune investment and host longevity in any of our three groups. Our results suggest that greater parasite burden is linked to higher host mortality in ungulates. Thus, shorter-lived ungulates may be more vulnerable to disease outbreaks, which has implications for ungulate conservation, and may be applicable to other short-lived mammals.en_US
dc.description.sponsorshipHuman Evolutionary Biologyen_US
dc.language.isoen_USen_US
dc.publisherPublic Library of Scienceen_US
dc.relation.isversionofdoi:10.1371/journal.pone.0042190
dash.licenseOAP
dc.subjectlifespanen_US
dc.subjectphylogenetic generalized least squaresen_US
dc.subjectArtiodactylaen_US
dc.subjectCarnivoraen_US
dc.subjectPerissodactylaen_US
dc.titleHost Longevity and Parasite Species Richness in Mammalsen_US
dc.typeJournal Articleen_US
dc.description.versionAccepted Manuscripten_US
dc.relation.journalPLoS ONEen_US
dash.depositing.authorNunn, Charles Lindsay
dc.date.available2012-07-20T15:51:04Z
dash.hope.year2012en_US
dc.identifier.doi10.1371/journal.pone.0042190*
dash.contributor.affiliatedNunn, Charles


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