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Filtering by: Date issued sim 2005-12-15 Subject Bird populations -- West (U.S.) -- Geographical distribution

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