Evidence of an Absence of Inbreeding Depression in a Wild Population of Weddell Seals (Leptonychotes weddellii)

dc.contributor.authorPowell, John H.
dc.contributor.authorKalinowski, Steven T.
dc.contributor.authorTaper, Mark L.
dc.contributor.authorRotella, Jay J.
dc.contributor.authorDavis, Corey S.
dc.contributor.authorGarrott, Robert A.
dc.date.accessioned2023-05-23T17:33:42Z
dc.date.available2023-05-23T17:33:42Z
dc.date.issued2023-02
dc.description.abstractInbreeding depression can reduce the viability of wild populations. Detecting inbreeding depression in the wild is difficult; developing accurate estimates of inbreeding can be time and labor intensive. In this study, we used a two-step modeling procedure to incorporate uncertainty inherent in estimating individual inbreeding coefficients from multilocus genotypes into estimates of inbreeding depression in a population of Weddell seals (Leptonychotes weddellii). The two-step modeling procedure presented in this paper provides a method for estimating the magnitude of a known source of error, which is assumed absent in classic regression models, and incorporating this error into inferences about inbreeding depression. The method is essentially an errors-in-variables regression with non-normal errors in both the dependent and independent variables. These models, therefore, allow for a better evaluation of the uncertainty surrounding the biological importance of inbreeding depression in non-pedigreed wild populations. For this study we genotyped 154 adult female seals from the population in Erebus Bay, Antarctica, at 29 microsatellite loci, 12 of which are novel. We used a statistical evidence approach to inference rather than hypothesis testing because the discovery of both low and high levels of inbreeding are of scientific interest. We found evidence for an absence of inbreeding depression in lifetime reproductive success, adult survival, age at maturity, and the reproductive interval of female seals in this population.en_US
dc.identifier.citationPowell JH, Kalinowski ST, Taper ML, Rotella JJ, Davis CS, Garrott RA. Evidence of an Absence of Inbreeding Depression in a Wild Population of Weddell Seals (Leptonychotes weddellii). Entropy. 2023; 25(3):403. https://doi.org/10.3390/e25030403en_US
dc.identifier.issn1099-4300
dc.identifier.urihttps://scholarworks.montana.edu/handle/1/17840
dc.language.isoen_USen_US
dc.publisherMDPI AGen_US
dc.rightscc-byen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.subjectdata cloningen_US
dc.subjectmicrosatellitesen_US
dc.subjectindividual inbreeding coefficienten_US
dc.subjectlifetime reproductive succesen_US
dc.subjectstatistical evidenceen_US
dc.subjectinformation criteriaen_US
dc.titleEvidence of an Absence of Inbreeding Depression in a Wild Population of Weddell Seals (Leptonychotes weddellii)en_US
dc.typeArticleen_US
mus.citation.extentfirstpage1en_US
mus.citation.extentlastpage16en_US
mus.citation.issue3en_US
mus.citation.journaltitleEntropyen_US
mus.citation.volume25en_US
mus.identifier.doi10.3390/e25030403en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentEcology.en_US
mus.relation.universityMontana State University - Bozemanen_US

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