Publications
Filter Total Items: 2076
Review of 'The golden eagle' by Jeff Watson Review of 'The golden eagle' by Jeff Watson
No abstract available.
Authors
Michael W. Collopy
Review of 'The golden eagle' by Jeff Watson Review of 'The golden eagle' by Jeff Watson
No abstract available.
Authors
Karen Steenhof
Short-term influence of tank tracks on vegetation and microphytic crusts in shrubsteppe habitat Short-term influence of tank tracks on vegetation and microphytic crusts in shrubsteppe habitat
Nutt.) habitat within the Idaho Army National Guard Orchard Training Area in southwestern Idaho. The purpose of this study was to determine the short-term (1–2 years) influence of tank tracks on vegetation and microphytic crusts in shrubsteppe habitat. The two types of tank tracks studied were divots (area where one track has been stopped or slowed to make a sharp turn) and straight-line...
Authors
Stephen E. Watts
Relationships among environmental variables and distribution of tree species at high elevation in the Olympic Mountains Relationships among environmental variables and distribution of tree species at high elevation in the Olympic Mountains
Relationships among environmental variables and occurrence of tree species were investigated at Hurricane Ridge in Olympic National Park, Washington, USA. A transect consisting of three plots was established down one north-and one south-facing slope in stands representing the typical elevational sequence of tree species. Tree species included subalpine fir (Abies lasiocarpa), Douglas-fir
Authors
Andrea Woodward
Contaminants in eggs of colonial waterbirds and hepatic cytochrome P450 enzyme levels in pipped tern embryos, Washington State 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...
Authors
L. J. Blus, M. J. Melancon, D. J. Hoffman, Charles J. Henny
Variability in seed dormancy of three Pacific Northwestern grasses Variability in seed dormancy of three Pacific Northwestern grasses
No abstract available.
Authors
Melinda M. Trask, David A. Pyke
Eolian dust on the Colorado Plateau: Magnetic and geochemical evidence from sediment in potholes and biologic soil crust Eolian dust on the Colorado Plateau: Magnetic and geochemical evidence from sediment in potholes and biologic soil crust
No abstract available.
Authors
R. Reynolds, Jayne Belnap, M. Reheis, Nilah Mazza
Avian movements and wetland connectivity in landscape conservation Avian movements and wetland connectivity in landscape conservation
The current conservation crisis calls for research and management to be carried out on a long-term, multi-species basis at large spatial scales. Unfortunately, scientists, managers, and agencies often are stymied in their effort to conduct these large-scale studies because of a lack of appropriate technology, methodology, and funding. This issue is of particular concern in wetland...
Authors
Susan M. Haig, D.W. Mehlman, L.W. Oring
Routes and travel rates of migrating Peregrine Falcons Falco peregrinus and Swainson's Hawks Buteo swainsoni in the Western Hemisphere Routes and travel rates of migrating Peregrine Falcons Falco peregrinus and Swainson's Hawks Buteo swainsoni in the Western Hemisphere
We describe and compare the migration routes, length of migration, and duration of migration of Peregrine Falcons Falco peregrinus tundrius and Swainson's Hawks Buteo swainsoni in the Western Hemisphere. We radio tracked migrants using the Argos satellite system. Our initial samples were 34 Swainson's Hawks from representative areas of their breeding range, and 61 Peregrine Falcons...
Authors
Mark R. Fuller, William S. Seegar, Linda S. Schueck
Postfledging nest dependence period for bald eagles in Florida Postfledging nest dependence period for bald eagles in Florida
We studied the postfledging dependency period in bald eagles (Haliaeetus leucocephalus), a little studied but important period in the life cycle of avian species. Bald eagles in Florida had a postfledging dependency period of 4-11 weeks (15-22 weeks old). The length of the dependency period did not vary by year of study, sex, number of fledgings, timing of fledging, or hatch order (P > 0...
Authors
Petra B. Wood, Michael W. Collopy, Carolyn M. Sekerak
A plan to assess native and exotic plant diversity and cryptobiotic crusts in the Grand Staircase-Escalante National Monument A plan to assess native and exotic plant diversity and cryptobiotic crusts in the Grand Staircase-Escalante National Monument
No abstract available.
Authors
Thomas J. Stohlgren, Jayne Belnap, G.W. Chong, R.M. Reich
Silvicultural systems and regeneration methods: Current practices and new alternatives Silvicultural systems and regeneration methods: Current practices and new alternatives
No abstract available.
Authors
J. C. Tappeiner, D. Lavender, Robert O. Curtis, D.S. DeBell