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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
Full Text:: -substituted polychlorinated biphenyls [PCBs] and p,p’-dichlorodiphenyldichloroethylene [DDE]) and juvenile

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
Full Text:: contaminant concentrations (mainly ortho-substituted polychlorinated biphenyls [PCBs] and p,p

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
Full Text:: . Jarvis and Marc P. Hayes for their many suggestions on field sampling needs and techniques during the

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