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Filtering by: Creator Grove, Robert Allan Non-Academic Affiliation Oregon State University. Graduate School

Evaluation of current agricultural practices and organophosphorus insecticide use in relation to ring-necked pheasant numbers at Klamath Basin Refuges, California

Creator:

Grove, Robert Allan

Abstract:

A declining population of ring-necked pheasants (Phasianus colchicus) was studied at Tule Lake National Wildlife Refuge (TLNWR) from the summer of 1990 through the spring of 1993. Pheasant densities/50 ha at TLNWR in 1989, 1991, and 1992 were considerably lower (16.86, 8.49, and 6.81) than the >62 density seen in...

Resource Type:

Masters Thesis
Environmental contaminants in male river otters collected from Oregon and Washington, 1994-99, with reproductive organ hypoplasia observed in otter males

Creator:

Grove, Robert Allan

Abstract:

A large number of river otter (Lontra canadensis) males were collected from areas of high and low contaminant concentrations throughout western Oregon and Washington during the fall and winter of 1994-99. Few significant non-reproductive organ morphometric differences were found in the large series of male otters collected, except for adrenal...

Resource Type:

Dissertation
Environmental contaminants in male river otters collected from Oregon and Washington, 1994-99, with reproductive organ hypoplasia observed in otter males

Creator:

Grove, Robert Allan

Abstract:

A large number of river otter (Lontra canadensis) males were collected from areas of high and low contaminant concentrations throughout western Oregon and Washington during the fall and winter of 1994-99. Few significant non-reproductive organ morphometric differences were found in the large series of male otters collected, except for adrenal...

Resource Type:

Dissertation

ScholarsArchive@OSU

Evaluation of current agricultural practices and organophosphorus insecticide use in relation to ring-necked pheasant numbers at Klamath Basin Refuges, California

Environmental contaminants in male river otters collected from Oregon and Washington, 1994-99, with reproductive organ hypoplasia observed in otter males

Environmental contaminants in male river otters collected from Oregon and Washington, 1994-99, with reproductive organ hypoplasia observed in otter males

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