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    The Influence of Social Interactions, Environmental Factors, and Predators on Behavior of Range Cattle

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    Author
    Kluever, Bryan Michael
    Issue Date
    2007
    Advisor
    Howery, Larry D.
    Committee Chair
    Howery, Larry D.
    Breck, Stewart W.
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    In wild ungulates vigilance is a critical behavior to guard against predation risk. Because large predators are expanding into habitats shared with domestic livestock understanding the factors that influence vigilance and other behaviors (i.e., foraging behavior, forage consumption rates, space use) will help to better manage livestock. My objective was to use observational and experimental techniques to: 1) examine the influence of predation events, social interactions, and environmental factors on vigilance of range cattle, and 2) determine if cattle behave differently when exposed to predatory stimuli representing different species. In the observational field study, vigilance in range cattle was influenced by group size and whether or not a cow had a calf. Cattle in large groups increased vigilance as visual obstruction increased. Cattle whose calves were killed by predators increased vigilance and decreased foraging rates but behavior approached baseline levels after 10 to 12 days. In the experimental study, cattle were more vigilant, foraged less, and avoided areas containing wolf stimuli. My studies provide evidence that predators can have indirect effects on the behavior of cattle.
    Type
    text
    Electronic Thesis
    Degree Name
    M.N.R.
    Degree Level
    masters
    Degree Program
    Natural Resources
    Degree Grantor
    University of Arizona
    Collections
    Master's Theses

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