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Social Distribution and Population Estimates of Coyotes in North-Central Montana

Duane Pyrah
The Journal of Wildlife Management
Vol. 48, No. 3 (Jul., 1984), pp. 679-690
Published by: Wiley on behalf of the Wildlife Society
DOI: 10.2307/3801415
Stable URL: http://www.jstor.org/stable/3801415
Page Count: 12
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Social Distribution and Population Estimates of Coyotes in North-Central Montana
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Abstract

Social distribution and population dynamics of coyotes (Canis latrans) were studied in the Missouri River Breaks of north-central Montana during 1976-81. Relocations of radio-collared coyotes indicated four adult social behavior modes: den breeders, extra or supernumerary den nonbreeders, nomads, and dispersers. During summer, den coyotes occupied areas that averaged $10\text{km}^{2}$ for eight males and $8\text{km}^{2}$ for three females. Travel areas of nomad coyotes averaged $146\text{km}^{2}$ for three males and $75\text{km}^{2}$ for two females. Coyotes dispersed up to 152 km from trap sites to where they were killed. Coyote density in breaks habitat, estimated by selecting high counts from den area and siren response surveys, averaged $0.39/\text{km}^{2}$ during 1977-79. Shooting, strongly associated with dispersal, accounted for most of the observed mortality.

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