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Buffer Zones of Territories of Gray Wolves as Regions of Intraspecific Strife

L. David Mech
DOI: http://dx.doi.org/10.2307/1382251 199-202 First published online: 18 February 1994


The locations of 22 territorial gray wolves (Canis lupus) killed by conspecifics in north-eastern Minnesota were analyzed in a study involving radio-telemetry from 1968 through 1992. Twenty-three percent of the wolves were killed precisely on the borders of their estimated territories; 41%, within 1.0 km (16% of the radius of their mean-estimated territory) inside or outside the estimated edge; 91%, within 3.2 km inside or outside (50% of the radius of their mean-estimated territory) of the estimated edge. This appears to be the first report of intraspecific mortality of mammals along territorial boundaries.

Key words
  • Canis lupus
  • wolf
  • territoriality
  • intraspecific strife
  • mortality
  • competition
  • buffer zone
  • predator-prey relations
  • deer
  • Odocoileus virginianus

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