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Filtering by: Creator Charles, Anthony Remove constraint Creator: Charles, Anthony Advisor Meslow, E. Charles Remove constraint Advisor: Meslow, E. Charles

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  • Population ecology of the Columbian white-tailed deer

    Creator:
    Gavin, Thomas Alan
    Abstract:
    A population of Columbian white-tailed deer (CWTD) was studied on a refuge (790 ha) in southwestern Washington during 1972-77. Quality of habitat was considered good for these deer and total population size remained between 164-230 as determined by mark-recapture methods during November. Population size declined significantly between the winters of...
    Resource Type:
    Dissertation
    Full Text:
    support and/ or offering valuable advice: Bob Anthony, Eric Hagstrom, Al Half Moon, Rolf Johnson, Ted

  • Food and habitat partitioning in two groups of coexisting Accipiter

    Creator:
    Reynolds, Richard T.
    Abstract:
    Sharp-shinned Hawks (Accipiter striatus), and Cooper's Hawks (A. coo erii) in the conifer forests in northwestern Oregon and A. striatus, A. cooperii, and Goshawks (A. gentilis) in the conifer forests of eastern Oregon were syntopic during the nesting season. In this study density of nests, nest success, and utilization of...
    Resource Type:
    Dissertation
    Full Text:
    Coexisting . Accipiter. Abstract approved: Redacted for Privacy E. Charles Meslow Sharp-shinned Hawks

  • Response of avian communities to herbicide-induced vegetation changes, western Oregon

    Creator:
    Morrison, Michael L.
    Abstract:
    The relationships between avian community structure and herbicide modification of vegetation were analyzed on early-growth clearcuts in western Oregon that had received phenoxy herbicide treatment 1 or 4 years previously. Only minor effects of herbicide treatment were evident 1-year after spraying, except for red adler (Alnus rubra), which still exhibited...
    Resource Type:
    Dissertation
    Full Text:
    . Charles Mels w The relationships between avian community structure and herbicide modification of

  • Population characteristics and habitat utilization of bighorn sheep, Steens Mountain, Oregon

    Creator:
    Van Dyke, Walter A.
    Abstract:
    A herd of re-introduced California bighorn sheep (Ovis canadensis californiana) was studied from 15 June 1976 to 31 August 1977. Thirteen major and seven minor habitats were delineated and described. Habitat use by bighorns was observed throughout the study and a habitat preference value (H.P.V.) was calculated based on use...
    Resource Type:
    Masters Thesis
    Full Text:
    influential in making this study a success. Dr. E. Charles Meslow, my major professor provided a continual

  • Turf assemblage of a Macrocystis kelp forest : experiments on competition and herbivory

    Creator:
    Miles, A. Keith
    Abstract:
    Early and later successional stages of the assemblage of turf algae and sessile animals of a Macrocystis kelp forest were studied off San Nicolas Island, California from 1980 through 1981, and 1983 through 1984. Kelps were manipulated to determine if differences in illumination could account for dominance by turf algae...
    Resource Type:
    Dissertation
    Full Text:
    nmen Herbivory. Abstract approved: Redacted for privacy E. Charles Meslow Early and later

  • Landscape composition around northern spotted owl nests, central Cascade Mountains, Oregon

    Creator:
    Swindle, Keith A.
    Abstract:
    This study describes the composition of forest landscapes surrounding northern spotted owl (Strix occidentalis caurina) nests in the central Cascade Mountains of Oregon. I compared forest composition around 126 owl nests in 70 pair territories with forest composition around 119 points drawn randomly from all terrestrial cover-types, and around 104...
    Resource Type:
    Masters Thesis
    Full Text:
    . Wight, then Dr. E. Charles Meslow and now by Dr. Robert G. Anthony. Under the auspices of the Unit, Dr