Northern Rocky Mountain Science Center

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: 990
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Year Published: 1996

Remote sensing of forest fire severity and vegetation recovery

White, J.D.; Ryan, K.C.; Key, C.H.; Running, S.W.
Remote sensing of forest fire severity and vegetation recovery; 1996; Article; Journal; International Journal of Wildland Fire; White, J. D.; Ryan, K. C.; Key, C. H.; Running, S. W.

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Year Published: 1995

Water-quality assessment in the Trinity River Basin, Texas; pesticide occurrence in streams, winter and spring 1994

A consistent, basin-wide set of data for streams in the Trinity River Basin is necessary to provide a baseline for current conditions, to compare with historical data, and to provide a reference for future studies by the National Water-Quality Assessment (NAWQA) Program. In addition, the basin-wide surveys begin the process of addressing the cause...

Shipp, Allison A.
Water-quality assessment in the Trinity River Basin, Texas; pesticide occurrence in streams, winter and spring 1994; 1995; FS; 160-95; Shipp, Allison A.

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Year Published: 1995

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...

Hostetler, Steven W.

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Year Published: 1995

Two-year simulation of the Great Lakes region with a coupled modeling system

In this paper, we report on an experiment aimed at evaluating the feasibility of the application of our coupled regional climate modeling system to long-term climate simulations over the Great Lakes region. The simulation analyzed covers a continuous 24-month period beginning 1 September 1990 and extending to 1 September 1992.Many aspects of this...

Bates, G. T.; Hostetler, S. W.; Giorgi, F.

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Year Published: 1995

Effects of a 2 x CO2 climate on two large lake systems: Pyramid Lake, Nevada, and Yellowstone Lake, Wyoming

The possible effects of trace-gas induced climatic changes on Pyramid and Yellowstone Lakes are assessed using a model of lake temperature. The model is driven by 312">312 years of hourly meteorological data obtained directly from the output of double-CO2 experiments (2 × CO2) conducted with a regional climate model nested in a...

Hostetler, S. W.; Giorgino, Mary L.

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Year Published: 1995

Biological consequences of relocating grizzly bears in the Yellowstone ecosystem

Relocating grizzly bears (Ursus arctos) from human/bear conflict situations has been a standard management procedure. Using data from Yellowstone National Park, we present components of situations that may affect the outcome of a relocation. Survival rates of transported bears were lower (lx = 0.83) (P = 0.001) than those not transported (lx = 0....

Blanchard, Bonnie M.; Knight, Richard R.

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Year Published: 1995

Appraising status of the Yellowstone grizzly bear population by counting females with cubs-of-the-year

The grizzly bear (Ursus arctos horriblilis) in the lower United States was declared threatened in 1975 under the Endangered Species Act of 1973 (16 U.S.C. 15-31-1544). According to that Act, the U.S. Fish and Wildlife Service had to prepare a plan to recover populations to levels where the species could be conserved and delisted from its...

Knight, Richard R.; Blanchard, Bonnie M.; Eberhardt, L. L.

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Year Published: 1995

Determination of selection gradients using multiple regression versus Structural Equation Modeling (SEM)

Selection studies involving multiple intercorrelated independent variables have employed multiple regression analysis as a means to estimate and partition natural and sexual selection's direct and indirect effects. These statistical models assume that independent variables are measured without error. Most would conclude that such is not the case...

Pugesek, B.H.; Tomer, A.

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Year Published: 1994

A demographic comparison of two black bear populations in the Interior Highlands of Arkansas

The Ozark and Ouachita mountain regions of western Arkansas, collectively known as the Interior Highlands, historically supported large numbers of black bears (Ursus americanus). Indiscriminate killing of bears by early settlers and subsequent habitat reductions due to extensive logging and changes in land use resulted in their decline (Smith et...

Clark, Joseph D.; Smith, Kimberly G.

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Year Published: 1994

Black bear habitat use in relation to food availability in the Interior Highlands of Arkansas

A black bear (Ursus americanus) food value index (FVI) was developed and calculated for forest cover type classifications on Ozark Mountain (White Rock) and Ouachita Mountain (Dry Creek) study areas in western Arkansas. FVIs are estimates of bear food production capabilities of the major forest cover types and were calculated using percent cover,...

Clark, Joseph D.; Clapp, Daniel L.; Smith, Kimberly G.; Ederington, Belinda

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Year Published: 1994

Black bears in Arkansas: Characteristics of a successful translocation

In 1958, the Arkansas Game and Fish Commission began translocating black bears (Ursus americanus) from Minnesota to the Interior Highlands (Ozark and Ouachita mountains) of Arkansas where bears had been extirpated early in this century. This project continued for 11 years with little public imput, during which time an estimated 254 bears were...

Smith, Kimberly G.; Clark, Joseph D.

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Year Published: 1994

Simulation of long-term thermal characteristics of three Estonian lakes

A one-dimensional surface energy-balance lake model, coupled to a thermodynamic model of lake ice, is used to simulate variations in the temperature of and evaporation from three Estonian lakes: Karujärv, Viljandi and Kirjaku. The model is driven by daily climate data, derived by cubic-spline interpolation from monthly mean data, and was run for...

Vassiljev, J.; Harrison, S.P.; Hostetler, Steven W.; Bartlein, Patrick J