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dc.contributor.authorRosell, Frank
dc.contributor.authorMysterud, Atle
dc.date.accessioned2007-12-18T15:29:39Z
dc.date.accessioned2017-04-19T12:25:24Z
dc.date.available2007-12-18T15:29:39Z
dc.date.available2017-04-19T12:25:24Z
dc.date.issued2007
dc.identifier.citationBiology letters 3(2007), No. 1, p. 106-108
dc.identifier.issn1744-957X
dc.identifier.urihttp://hdl.handle.net/11250/2438084
dc.description.abstractHuman exploitation may skew adult sex ratios in vertebrate populations to the extent that males become limiting for normal reproduction. In polygynous ungulates, females delay breeding in heavily harvested populations, but effects are often fairly small. We would expect a stronger effect of male harvesting in species with a monogamous mating system, but no such study has been performed. We analysed the effect of harvesting males on the timing of reproduction in the obligate monogamous beaver (Castor fiber). We found a negative impact of harvesting of adult males on the timing of parturition in female beavers. The proportion of normal breeders sank from over 80%, when no males had been shot in the territories of pregnant females, to under 20%, when three males had been shot. Harvesting of males in monogamous mammals can apparently affect their normal reproductive cycle.
dc.language.isoeng
dc.publisherRoyal Society
dc.subjectBeavers
dc.subjectManagement
dc.subjectLife history
dc.subjectPhenology
dc.subjectSeasonality
dc.titleHarvesting of males delays female breeding in a socially monogamous mammal : the beaver
dc.typeJournal article
dc.typePeer reviewed
dc.subject.nsi488
dc.identifier.doihttp://dx.doi.org/10.1098/rsbl.2006.0563


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