Show simple item record Hoogland, John L. Brown, Charles R. 2016-02-24T15:52:12Z 2016-02-24T15:52:12Z 2016-03-23
dc.identifier doi:10.5061/dryad.5hk4b
dc.identifier.citation Hoogland JL, Brown CR (2016) Prairie dogs increase fitness by killing interspecific competitors. Proceedings of the Royal Society B 283(1827): 20160144.
dc.description Interspecific competition commonly selects for divergence in ecology, morphology, or physiology, but direct observation of interspecific competition under natural conditions is difficult. Herbivorous white-tailed prairie dogs (Cynomys leucurus) employ an unusual strategy to reduce interspecific competition: they kill, but do not consume, herbivorous Wyoming ground squirrels (Urocitellus elegans) encountered in the prairie dog territories. Results from a 6-year study in Colorado USA revealed that interspecific killing (IK) of ground squirrels by prairie dogs was common, involving 47 different killers; 19 prairie dogs were serial killers in the same or consecutive years, and 30% of female prairie dogs killed at least one ground squirrel over their lifetimes. Females that killed ground squirrels had significantly higher annual and lifetime fitness than nonkillers, probably because of decreased interspecific competition for vegetation. Our results document the first case of IK among herbivorous mammals in the wild, and show that IK enhances fitness for animals living under natural conditions.
dc.relation.haspart doi:10.5061/dryad.5hk4b/1
dc.relation.haspart doi:10.5061/dryad.5hk4b/2
dc.relation.isreferencedby doi:10.1098/rspb.2016.0144
dc.relation.isreferencedby PMID:27009223
dc.subject interspecific competition
dc.subject interspecific killing
dc.subject prairie dog
dc.subject ground squirrel
dc.subject lifetime fitness
dc.subject reproductive
dc.title Data from: Prairie dogs increase fitness by killing interspecific competitors
dc.type Article
dwc.ScientificName Cynomys leucurus
dc.contributor.correspondingAuthor J Hoogland
prism.publicationName Proceedings of the Royal Society B
dryad.dansTransferDate 2018-05-01T13:10:17.420+0000
dryad.dansArchiveDate 2018-05-01T17:02:56.839+0000

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Title Annual measures data set
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Title LRS dataset
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