Date of Award:
5-1994
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Wildland Resources
Department name when degree awarded
Fisheries and Wildlife
Committee Chair(s)
Michael L. Wolfe
Committee
Michael L. Wolfe
Committee
Philip J. Urness
Committee
Todd A. Crowl
Committee
Mark E. Richie
Abstract
Elk (Cervus elaphus) and mule deer (Odocoileus hemionus) density and foraging behavior were monitored in conjunction with disturbance by livestock (cattle and sheep) from 1991 to 1993 at Deseret Land and Livestock property near Woodruff, Utah. Elk and deer densities declined by as much as 92% in response to introduction of livestock, while associated areas where livestock were absent did not show this response. Biting rates and bite sizes were estimated and used to determine instantaneous intake rate. These measures were similar between pastures with cattle present or absent in 1992 but differed in 1993 for bite rate and marginally so for instantaneous intake rate. Bite rate and bite size but not instantaneous intake rate showed significant differences among years when the data for both treatments were combined. My results indicated that livestock locally displaced wild ungulates but displacement occurred only while the livestock were present. Differences in elk foraging behavior were greater between years than between treatments, and instantaneous intake rate alone was viewed as an inaccurate indicator of potential reductions in fitness.
Checksum
d4ba50ff5da2c3339f04dd34df77c14e
Recommended Citation
Clegg, Kenneth, "Density and Feeding Habits of Elk and Deer in Relation to Livestock Disturbance" (1994). All Graduate Theses and Dissertations, Spring 1920 to Summer 2023. 969.
https://digitalcommons.usu.edu/etd/969
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This work made publicly available electronically on July 1, 2011.