Publications
Filter Total Items: 1990
Organochlorine pesticides, PCBs, and mercury in Osprey (Pandion haliaetus) eggs from the Upper Volga River, Russia
No abstract available
Authors
Charles J. Henny, V.M. Galushin, A.V. Kuznetsov
Highway to the tropics: Using satellite telemetry and the Internet to track ospreys in the Western Hemisphere
No abstract available.
Authors
M.S. Martell, M.J. Kennedy, Charles J. Henny, P. Nye
Climate, limiting factors and environmental change in high-attitude forests of Western North America
No abstract available.
Authors
D. L. Peterson
Climate change, potential impacts on biological systems
No abstract available.
Authors
D. L. Peterson
Contaminants in ospreys from the Pacific Northwest: I. Trends and patterns in polychlorinated dibenzo-p-dioxins and -dibenzofurans in eggs and plasma
Osprey (Pandion haliaetus) eggs were collected from 1991 to 1997 at nests (n = 121) upstream and downstream of bleached kraft pulp mills and at reference sites in the Fraser and Columbia River drainage systems of British Columbia, Washington, and Oregon. Blood samples were collected from nestling ospreys during the 1992 breeding season on the Thompson River. Samples were analyzed for polychlorinat
Authors
J. E. Elliott, M. M. Machmer, Charles J. Henny, L. K. Wilson, R. J. Norstrom
Effects of nutrient patches and root systems on the clonal plasticity of a rhizomatous grass
Clonal plant foraging has been examined primarily on individual clones exposed to resource-poor and resource-rich environments. We designed an experiment to examine the clonal foraging behavior of the rhizomatous grass Elymus lanceolatus ssp. lanceolatus under the influence of neighboring plant root systems in a heterogeneous nutrient environment. Individual Elymus clones were planted in large bin
Authors
Elisabeth Huber-Sannwald, David A. Pyke, M. M. Caldwell, Susan Durham
Molecular contributions to conservation
Recent advances in molecular technology have opened a new chapter in species conservation efforts, as well as population biology. DNA sequencing, MHC (major histocompatibility complex), minisatellite, microsatellite, and RAPD (random amplified polymorphic DNA) procedures allow for identification of parentage, more distant relatives, founders to new populations, unidentified individuals, population
Authors
Susan M. Haig
Contaminants in eggs of colonial waterbirds and hepatic cytochrome P450 enzyme levels in pipped tern embryos, Washington State
Eggs of Forster's terns (Sterna forsteri) collected in 1991 from nesting colonies on Crescent Island (Columbia River) and the Potholes Reservoir in south central Washington generally contained low residues of organochlorine pesticides and metabolites, 2,3,7,8-tetrachlorodibenzo-p-dioxin, 2,3,7,8-tetrachlorodibenzofuran, and polychlorinated biphenyls (PCBs). Hepatic cytochrome P450 enzyme activity
Authors
L. J. Blus, M. J. Melancon, D. J. Hoffman, C. J. Henny
Effects of pesticides on Canada Geese
This paper summarizes published and unpublished sources relating to exposure of Canada geese (Branta canadensis) to pesticides, emphasizing documented episodes of poisoning by organochlorine (OC), organophosphorus (OP), and carbamate compounds. Canada geese accumulate the lipid-soluble OC compounds, although they have a lower potential for biomagnification of these pesticides than animals at high
Authors
L. J. Blus
Blood changes in mallards exposed to white phosphorus
White phosphorus (P4) has been extensively used by the military for various purposes, including marking artillery impacts and as an obscurant. Target practice in an Alaskan tidal marsh during the last 4 decades has deposited large amounts of P4 particles in sediments and water, which have resulted in die-offs of several waterfowl species. Because the toxicity of P4 in birds has not been well docum
Authors
Donald W. Sparling, S. Vann, Robert A. Grove
Ecological monitoring for the Northwest Forest Plan: A comparison to other major ecosystem initiatives
No abstract available.
Authors
D.E. Busch