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Survival Of Neonate Mule Deer Fawns In Southern Utah: Effects Of Coyote Removal And Synchrony Of Parturition, Jacob Tyler Hall
Survival Of Neonate Mule Deer Fawns In Southern Utah: Effects Of Coyote Removal And Synchrony Of Parturition, Jacob Tyler Hall
Theses and Dissertations
Mule deer (Odocoileus hemionus) are an iconic species of wildlife, and populations of mule deer across much of the western U.S. have experienced recent fluctuations in size. Factors that affect the survival and subsequent recruitment of juveniles may be the preeminent cause of population fluctuations for mule deer in many areas. Many factors, including habitat loss, extreme weather, intense predation, timing and synchrony of parturition, and competition with other species may be influencing these changes. We studied two potential factors that can influence the survival of neonate mule deer in southern Utah. To better understand how predation affects …
Impacts Of A Mixed Ungulate Community On Aspen Forests: From Landscape To Leaf, Aaron C. Rhodes
Impacts Of A Mixed Ungulate Community On Aspen Forests: From Landscape To Leaf, Aaron C. Rhodes
Theses and Dissertations
This dissertation explores the differential effects of an ungulate community (cattle, mule deer, and American elk) on aspen (Populus tremuloides) regeneration pre- and post-fire disturbance. It's first chapter examines the differential effects of cattle, mule deer, and American elk on aspen regeneration across variable topography, climate and forest type; aspen dominant to conifer dominant subalpine forests. We found that each ungulate species, if sufficiently numerous, can cause aspen regeneration failure. Also, high elevation, southern aspect and high winter snow pack increase resilience to ungulate herbivory. Chapter two compares the efficacy of four methods of estimating ungulate impact on …
Competition Dynamics Within Communities Of Desert Wildlife At Water Sources, Lucas Keith Hall
Competition Dynamics Within Communities Of Desert Wildlife At Water Sources, Lucas Keith Hall
Theses and Dissertations
Water is a vital resource for species inhabiting arid and semi-arid regions and can shape the biotic communities that we observe. Because water is considered a limiting resource for many species in desert environments, there is the potential for competitive interactions between species to occur at or around water sources. For this dissertation I tested hypotheses related to resource competition among different species of wildlife in the Great Basin and Mojave Deserts of western Utah. Chapter one evaluated the influence of feral horses (Equus caballus) on patterns of water use by communities of native birds and mammals. Chapter …
Influence Of Release Timing On Survival And Movements Of Translocated Mule Deer (Odocoileus Hemionus) In Utah, David C. Smedley
Influence Of Release Timing On Survival And Movements Of Translocated Mule Deer (Odocoileus Hemionus) In Utah, David C. Smedley
Theses and Dissertations
Translocation of wildlife has become common practice for wildlife managers charged with management of animals on increasingly modified landscapes. Translocation can be used to reduce population density in the source area, supplement existing populations, reestablish extirpated populations, and establish new populations. Mule deer (Odocoileus hemionus) are a species of great interest to the public in western North America. Although translocations have been used to manage mule deer, very little has been done to document the outcomes of this management practice. The purpose of this research was to evaluate movement, site fidelity, space use, and survival of translocated mule …