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Filtering by: Creator Milne, Glenn A. Remove constraint Creator: Milne, Glenn A. Degree Field Wildlife Science Remove constraint Degree Field: Wildlife Science Peer Reviewed No Remove constraint Peer Reviewed: No

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  • Local weather, regional climate, and population dynamics of northern spotted owls in Washington and Oregon

    Creator:
    Glenn, Elizabeth M.
    Abstract:
    Since the early 1990s, declines in northern spotted owl (Strix occidentalis caurina) populations have been documented through extensive field surveys and range-wide demographic analyses. Although loss of late-successional forest has been credited as the primary cause for spotted owl population declines, environmental variation has also been shown to influence vital...
    Resource Type:
    Dissertation
    Full Text:
    by Elizabeth M. Glenn A DISSERTATION submitted to OREGON STATE UNIVERSITY

  • Applications of radiotelemetry to studies of California quail in western Oregon

    Creator:
    Kilbride, Kevin M.
    Abstract:
    A partially automated radio-tracking system with semi-continuous azimuth data collection and XYLOG5 and MAP computer programs for azimuth data analysis was used for studies of California quail (Callipepla californica) at the E.E. Wilson Wildlife Area, Oregon, in 1988 and 1989. Movements of 58 hens were monitored daily to determine nest...
    Resource Type:
    Masters Thesis
    Full Text:
    of California Quail in Western Oregon Abstract approved:_Redacted for Privacy \J John A. Craltrd

  • Long Term Trends and Sources of Sound in United States Waters

    Creator:
    Haver, Samara M.
    Abstract:
    Passive acoustic monitoring is a valuable tool for observing the status of marine environments. Comparisons of underwater soundscapes over temporal and spatial scales can provide data to inform marine conservation efforts, including protection of threatened and endangered species. This dissertation utilizes passive acoustic data collected via a broadly spaced array...
    Resource Type:
    Dissertation
    Full Text:
    States Waters. Abstract approved: ______________________________________________________ Scott A

  • Prey selection by peregrine falcons during the nestling stage in Alaska

    Creator:
    Hunter, Robin E.
    Abstract:
    Proper management of peregrine falcons (Falco peregrinus) includes management of its prey. Little quantitative data on prey selection by peregrine falcons have been collected. The objective of this study was to determine species and relative abundance of prey brought to eyries by peregrine falcons during the nestling stage and to...
    Resource Type:
    Masters Thesis
    Full Text:
    Nestling Stage in Alaska Abstract approved: Redacted for Privacy John A. Cra7ford Proper management of

  • Evolutionary history and speciation of the genus Tragopan

    Creator:
    Islam, Kamal
    Abstract:
    A study of the phyletic relationships among five species of tragopans and an outgroup, the Blood Pheasant (Ithaginis cruentus), was conducted from 1987 to 1991. Biochemical, behavioral, and external morphologic characteristics were compared. A cladistic approach was used to compare the behavioral, biochemical, and external morphologic data collectively, as different...
    Resource Type:
    Dissertation
    Full Text:
    approved: Redacted for Privacy JAI) A. Cra ord A study of the phyletic relationships among five species

  • Historic Survival Rates and Cause-Specific Mortality for Columbian Black-Tailed Deer in Southwest Oregon

    Creator:
    Groot, Kevyn A.
    Abstract:
    In contrast with other Odocoileus species, Columbian black-tailed deer (Odocoileus hemionus columbianus) population dynamics are not well understood throughout the species’ range. Concerns over apparent long-term population declines have prompted efforts to fill basic knowledge gaps including estimates of vital rates (fecundity, recruitment and survival) and cause-specific mortality. The Oregon...
    Resource Type:
    Masters Thesis
    Full Text:
    Columbian Black-Tailed Deer in Southwest Oregon AN ABSTRACT OF THE THESIS OF Kevyn A

  • Rapid endangered species assessment : a novel approach to improve extinction risk assessments in poorly known species

    Creator:
    Bianchi, Carlos A.
    Abstract:
    The number of endangered species is rapidly increasing while paucity of adequate information and resources delays establishment of conservation actions. The IUCN’s listing system is insufficient to determine conservation priorities and many species lack information even to be evaluated (i.e., “data deficient”). Here I proposed and tested the Rapid Endangered...
    Resource Type:
    Dissertation
    Full Text:
    DISSERTATION OF Carlos A. Bianchi for the degree of Doctor of Philosophy in Wildlife Science presented on

  • Modeling Fine-scale Avian Distributions and Densities with Multi-scale Models: Predicting the Past and Present

    Creator:
    Hallman, Tyler A.
    Abstract:
    Models of a species’ distribution and models of a species’ spatially explicit density are valuable tools for conservation. They allow researchers to estimate changes in distributions, densities, and populations, based on changing environmental conditions. To trust such estimates, however, the quality of models is exceedingly important. Model performance can be...
    Resource Type:
    Dissertation
    Full Text:
    8 Milne 1989, Levin 1992, Mayor et al. 2009, McGarigal et al. 2016). Most studies select a

  • Top-down Influences of bald eagles on common murre populations in Oregon

    Creator:
    Horton, Cheryl A.
    Abstract:
    Populations of organisms are influenced by both top-down (predator driven) and bottom-up (environment or resource driven) effects. Seabird research has largely focused on bottom-up factors influencing reproduction, with little emphasis on top-down. Our goal was to better understand top-down impacts on colonial nesting seabirds over a range of spatio-temporal scales....
    Resource Type:
    Masters Thesis
    Full Text:
    in Oregon AN ABSTRACT OF THE THESIS OF Cheryl A. Horton for the degree of Master

  • Survival, movements and habitat selection of pygmy rabbits (Brachylagus idahoensis) on the Great Basin of southeastern Oregon and northwestern Nevada

    Creator:
    Crawford, Justin A.
    Abstract:
    I investigated survival, movements, home range sizes, and habitat selection of pygmy rabbits (Brachylagus idahoensis) in southeastern Oregon and northwestern Nevada from June 2005 to June 2007. I trapped 298 rabbits on four sites and fitted each with radio transmitters. More than 13,000 locations of telemetered rabbits were recorded. I...
    Resource Type:
    Masters Thesis
    Full Text:
    Justin A. Crawford for the degree of Master of Science in Wildlife Science presented on June 4, 2008