Publications
Below is a list of available NOROCK peer reviewed and published science. If you are in search of a specific publication and cannot find it below or through a search, please contact twojtowicz@usgs.gov.
Filter Total Items: 1300
Species repatriation: Red wolf Species repatriation: Red wolf
No abstract available.
Authors
C. F. Lucash, B. A. Crawford, J. D. Clark
Management of a large carnivore: Black bear Management of a large carnivore: Black bear
No abstract available.
Authors
Joseph D. Clark, Michael R. Pelton
Estimating species richness: The Michaelis-Menten model revisited Estimating species richness: The Michaelis-Menten model revisited
The Michaelis-Menten model has been widely used to estimate the richness (S) of species pools, but is largely untested. We tested whether (1) species accumulation curves follow the form predicted by the model, (2) the model gives unbiased estimates (Ŝ and B̂, respectively) of S and of the sample size, B, needed to detect S/2 species, and (3) performance is robust to community structure
Authors
K.A. Keating, J.F. Quinn
Browse Evaluation by Analysis of Growth Form Browse Evaluation by Analysis of Growth Form
Abstract has not been submitted
Authors
R.B. Keigley, M.R. Frisina
Near to the edge of an ice sheet Near to the edge of an ice sheet
No abstract available.
Authors
Steven W. Hostetler
Glacier recession and ecological implications at Glacier National Park, Montana Glacier recession and ecological implications at Glacier National Park, Montana
No abstract available.
Authors
C.H. Key, S. Johnson, D.B. Fagre, R. K. Menicke
Ecosystem dynamics of the Northern Rocky Mountains, USA Ecosystem dynamics of the Northern Rocky Mountains, USA
No abstract available.
Authors
D.B. Fagre, C.H. Key, J.D. White, S. W. Running, F. R. Hauer, R.E. Keane, K. C. Ryan
Imperiled mammalian fauna of aquatic ecosystems in the Southeast: A historical perspective Imperiled mammalian fauna of aquatic ecosystems in the Southeast: A historical perspective
About 100 species of mammals are endemic to the southeastern United States, an area of diverse habitat types and high biodiversity. Many of these species are either formally considered aquatic or semi-aquatic, or they are otherwise closely associated with aquatic ecosystems. In the southeastern United States, greater than 80 percent of mammalian species are listed in some category of...
Authors
M. J. Harvey, J. D. Clark
Imperiled mammalian fauna of aquatic ecosystems in the Southeast: A management perspective Imperiled mammalian fauna of aquatic ecosystems in the Southeast: A management perspective
Management of imperiled mammals associated with aquatic ecosystems in the southeastern United States ranges from almost no management for some species to intensive, high-profile programs for others. Aquatic mammals are notoriously difficult to census because they are often secretive, trap-wary, relatively rare, or have extensive movement patterns. As a result, conservation efforts aimed...
Authors
J. D. Clark, M. J. Harvey
How many grizzlies in Yellowstone? How many grizzlies in Yellowstone?
Trend data indicate that the Yellowstone grizzly bear (Ursus arctos horribilis) population has been increasing in recent years, after a decline induced by closure of open garbage dumps in 1970-71. Current population size appears to be approaching a level where management to curb further increases might be desirable, even though it will be highly controversial. Continual close monitoring...
Authors
L.L. Eberhardt, R.R. Knight
Remote sensing of forest fire severity and vegetation recovery Remote sensing of forest fire severity and vegetation recovery
Burned forested areas have patterns of varying burn severity as a consequence of various topographic, vegetation, and meteorological factors. These patterns are detected and mapped using satellite data. Other ecological information can be abstracted from satellite data regarding rates of recovery of vegetation foliage and variation of burn severity on different vegetation types. Middle...
Authors
J.D. White, K.C. Ryan, C.H. Key, S. W. Running
Hydrological and thermal response of lakes to climate: Description and modeling Hydrological and thermal response of lakes to climate: Description and modeling
Lake systems continually respond to climatic conditions that vary over broad scales of space and time. The spatial distribution of lakes on the Earth’s surface is indicative of long-term patterns of atmospheric circulation, and the annual cycle of climate over lake basins is reflected in seasonal change in the size and temperature of lakes. Lake size is determined by the balance of water...
Authors
Steven W. Hostetler