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University of Arizona (1999)

Seasonal densities and habitat use of desert mule deer in a semidesert grassland

Koenen, Kiana Kathleen-Gaye

Titre : Seasonal densities and habitat use of desert mule deer in a semidesert grassland

Auteur : Koenen, Kiana Kathleen-Gaye

Université : University of Arizona

Grade : Master of Science 1999

Résumé
I determined density and habitat use of desert mule deer Odocoileus hemionus crooki on the Buenos Aires National Wildlife Refuge, a semidesert grassland in southeastern Arizona, in 1996. I observed 219 groups of deer ; densities varied from 0.9 ± 0.3 (SE) deer/km’ in summer to 2.5 + 1.3 in winter. Herd size varied from 1.5 + 0.1 deer/group in summer to 9.7 ± 2.0 in winter. Density of females was greater than males (0.9 ±0.3 and 0.03 + 0.04, respectively). Mule deer used subshrub-grass more in summer = 54.8, 6 df, P < 0.0001) and Russian thistle Scillsola kali less and cactus more in autumn jf = 60.2, 6 df, P < 0.0001 than expected. Deer used mesquite Prosopis velutina less than expected, which may have been due to the difficulty of observing deer in dense cover. In general, the mule deer population was widespread, had a high proportion of females, and used vegetation associations as available.

Mots clés : Biology, Ecology. ; Agriculture, Forestry and Wildlife. ;

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