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  • Population attributes and habitat selection of recolonizing mountain beaver (Aplodontia rufa)

    Creator:
    Hacker, Amy L.
    Abstract:
    I investigated the population attributes and habitat selection of mountain beaver (Aplodontia rufa) recolonizing clearcuts in the Coast Range mountains of Polk and Lincoln counties, Oregon between June 1989 and August 1990. The population characteristics of colonizing mountain beaver were evaluated in 12 stands of 3 types: 1-year-old clearcuts assumed...
    Resource Type:
    Masters Thesis
    Full Text:
    appropriate methods of aging mountain beaver. I also wish to thank Drs. Robert Anthony and William McComb

  • Breeding bird community composition in relation to riparian vegetation structure in grazed habitats

    Creator:
    Sanders, Todd Alan
    Abstract:
    Riparian zones provide habitat for breeding birds in the semiarid western United States; however, there are few data available that address the effects of livestock grazing strategies on riparian habitats and avian communities. Documenting avian community composition in different riparian vegetation communities and relating vegetation communities to livestock grazing strategies...
    Resource Type:
    Masters Thesis
    Full Text:
    also thankful to graduate committee members professors J. Boone Kauffman and William C. McComb for

  • Breeding habitat of harlequin ducks in Prince William Sound, Alaska

    Creator:
    Crowley, David W.
    Abstract:
    Breeding habitat of Harlequin ducks (Histrionicus histrionicus) was studied in eastern Prince William Sound, Alaska, during 1991 - 1993. Streams in Prince William Sound were surveyed for Harlequin ducks and monitored with mist nets. Physical characteristics of 24 Harlequin breeding streams were compared to those of 24 streams not used...
    Resource Type:
    Masters Thesis
    Full Text:
    committee members Charles Meslow, William McComb, John Hayes and Daniel Edge for their review and comments

  • Nesting and foraging ecology of band-tailed pigeons in western Oregon

    Creator:
    Leonard, Jerome Patrick
    Abstract:
    Pacific Coast band-tailed pigeons (Columba fasciata) have declined markedly during the past several decades. Despite implementation of increasingly restrictive hunting regulations, populations have shown minimal signs of recovery. I radio-marked 127 adult band-tailed pigeons in the central Oregon Coast Range in April-May of 1993-95 to document nesting chronology and productivity,...
    Resource Type:
    Dissertation
    Full Text:
    graduate committee--Drs. Diane J. Carroll, William C. McComb, E. Charles Meslow, John C. Tappeiner, and

  • Short-tailed weasel space use in managed forests of western Oregon

    Creator:
    Linnell, Mark A.
    Abstract:
    Although short-tailed weasels (Mustela erminea) are important predators of small mammals, little is known about their space use, habitat selection, or vulnerability to predation in North America. To evaluate the effects of forest management and social structure on home range size and habitat selection of short-tailed weasels, I conducted a...
    Resource Type:
    Masters Thesis
    Full Text:
    McComb. Their thoughtful contributions throughout improved this document. Eric Forsman and the U.S

  • Patterns of energy utilization in the litter subsystem of a Douglas-fir forest

    Creator:
    Chase, Wallace T.
    Abstract:
    Respiratory rates were measured, in situ, for the litter, the soil, and the litter-soil subsystems of a Pseudotsuga menziesii forest as a function of type of understory vegetation. The major objectives were to demonstrate the utility of the litter layer as a distinct subsystem of this forest ecosystem, to demonstrate...
    Resource Type:
    Dissertation
    Full Text:
    my major professor, Dr. John Lyford,and my committee members, Dr. William Chilicote, Dr. John McComb