Publications
Filter Total Items: 1990
Effects of selenium, mercury, and boron on waterbird egg hatchability at Stillwater, Malheur, Seedskadee, Ouray, and Benton Lake National Wildlife Refuges and surrounding vicinities
No abstract available.
Authors
C. J. Henny, R. A. Grove, V.R. Bentley
Geologic studies in Alaska by the U.S. Geological Survey, 1998
The 14 papers that follows continue the series of U.S. Geological Survey (USGS) reports on investigations in the geologic sciences in Alaska. The series presents new and sometimes preliminary findings that are of interest to earth scientists in academia, government, and industry; to land and resource managers; and to the general public. Reports presented in Geologic Studies in Alaska cover a broad
Geologic studies in Alaska by the U.S. Geological Survey, 1997
The eight papers that follow continue the series of U.S. Geological Survey (USGS) reports on investigations in the geologic sciences in Alaska. The series presents new and sometimes preliminary findings that are of interest to earth scientists in academia, government, and industry; to land and resource managers; and to the general public. Reports presented in Geologic Studies in Alaska cover a bro
Amphibians of Olympic National Park
Amphibians evolved from fishes about 360 million years ago and were the first vertebrates adapted to life on land. The word amphibian means "double life." It refers to the life history of many amphibians, which spend part of their life in water and part on land. There are three major groups of amphibians: salamanders, frogs, and toads, and caecilians. Salamanders, frogs, and toads can be found in
Authors
Assessing southern flying squirrel, Glaucomys volans, habitat selection with kernel home range estimation and GIS
No abstract available.
Authors
James F. Taulman, D.E. Seaman
Carbon distribution in subalpine forests and meadows of the Olympic Mountains, Washington
stimates of C storage in mountainous regions are rare. Forest–meadow ecotones in subalpine ecosystems, which contain a mosaic of forests and meadows, may be particularly sensitive to future changes in climate and are therefore important to include in estimates of terrestrial C storage. In this study, we quantified soil C and ecosystem C pools in subalpine forest and meadow soils of the northeaster
Authors
S.J. Prichard, D. L. Peterson, R.D. Hammer
Seasonal variation in concentrations of fiber, crude protein, and phenolic compounds in leaves of red alder (Alnus rubra): Nutritional implications for cervids
We sought to determine whether changes in chemical composition could be a factor in increased utilization of red alder (Alnus rubra) by the two cervids, the Columbian black-tailed deer (Odocoileus hemionus columbianus) and Roosevelt elk (Cervus elaphus roosevelti), during the fall in parts of the Douglas fir region of the Pacific Northwest. We found that concentrations and astringency of phenolic
Authors
M. P. Gonzalez-Hernandez, Edward E. Starkey, J. Karchesy
Fire frequency in the Interior Columbia River Basin: Building regional models from fire history data
Fire frequency affects vegetation composition and successional pathways; thus it is essential to understand fire regimes in order to manage natural resources at broad spatial scales. Fire history data are lacking for many regions for which fire management decisions are being made, so models are needed to estimate past fire frequency where local data are not yet available. We developed multiple reg
Authors
D. McKenzie, D. L. Peterson, James K. Agee
Growth and demographics of a population of Emydoidea blandingii from western Nebraska
No abstract available.
Authors
David J. Germano, R. Bruce Bury
Turnover and dispersal of prairie falcons in southwestern Idaho
We studied Prairie Falcon (Falco mexicanus) breeding dispersal, natal dispersal, and turnover
at nesting areas in the Snake River Birds of Prey National Conservation Area (NCA) from 1971-
95. Of 61 nesting areas where falcons identified one year were known to be present or absent the following year, 57% had a different falcon. This turnover rate was 2-3 times higher than that reported elsewhere
Authors
Robert N. Lehman, Karen Steenhof, L.B. Carpenter, Michael N. Kochert
Migration strategies and wintering areas of North American ospreys as revealed by satellite telemetry
Since 1995 we have trapped and tagged 110 Ospreys (Pandion haliaetus) from 12 study sites in 8 states (Fig. 1). This total includes 71 females, 32 males and 7 juveniles. Our study areas encompass the major Osprey population concentrations found in the United States including the Western States, the Great Lakes region and the Eastern Seaboard.Tagging of nesting pairs along with three complete famil
Authors
Mark S. Martell, Charles J. Henny, P. Nye, Matthew J. Solensky