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Filtering by: Creator Jacobs, Dakota C. Remove constraint Creator: Jacobs, Dakota C. Committee Member Pereira, Cliff Remove constraint Committee Member: Pereira, Cliff Subject Bird populations -- West (U.S.) -- Geographical distribution Remove constraint Subject: Bird populations -- West (U.S.) -- Geographical distribution

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  • Range-wide abundance and fluctuating asymmetry patterns of sagebrush-obligate passerine birds

    Creator:
    Krissman, Cortnie M.
    Abstract:
    North American sagebrush (Artemisia spp.) ecosystems are suffering from reductions in habitat extent and quality. Only about 50% of sagebrush remains from pre-settlement conditions, and much of the remaining habitat is fragmented or degraded by invasive species, fire suppression and overgrazing. Sagebrush-obligate species are experiencing population declines as a result...
    Resource Type:
    Masters Thesis
    Full Text:
    ....................................................................92 C. Trellis graph based on negative binomial regression model with percent sagebrush and