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Filtering by: Committee Member Forsman, Eric Resource Type Dissertation

Evaluating space use and pesticide exposure risk for burrowing owls in an agricultural environment

Creator:

Gervais, Jennifer A.

Abstract:

Large burrowing owl (Aihene cunicularia) populations exist in areas of intensive agriculture in California, and pesticide exposure has been identified as a potential threat to population persistence. I evaluated breeding season use of agricultural fields by adult male owls using radio telemetry, and examined egg contaminant residues to estimate population-level...

Resource Type:

Dissertation

Full Text:

, Dr. Bob Anthony, and the members of my graduate committee: Drs. Ian Tinsley, Eric Forsman, Bent
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:

my initial reluctance. I also thank my committee members Eric Forsman, Gail Olson, Cliff Pereira
Canopy Ecology of Swiss Needle Cast in Young and Mature/Old-growth Douglas-fir (Pseudotsuga menziesii)

Creator:

Lan, Yung-Hsiang

Abstract:

Swiss needle cast (SNC) is a foliage disease of Douglas-fir caused by Nothophaeocryptopus gaeumannii, an Ascomycete fungus (Mycosphaerellaceae) that causes growth reductions in Douglas-fir plantations across the Pacific Northwest. Epidemiology of the fungus is generally well known in plantation trees, but the relationship between disease expression and foliage nutrition and...

Resource Type:

Dissertation

Full Text:

out with you. Thanks for all helps in the field work from Rebacca Hsu, Brian Chiu, Eric Forsman