Publications
FORT scientists have produced more than 2000 peer reviewed publications that are registered in the USGS Publications Warehouse, along with many others prior to their work at the USGS or in conjunction with other government agencies.
Filter Total Items: 2403
Correlates to colonizations of new patches by translocated populations of bighorn sheep Correlates to colonizations of new patches by translocated populations of bighorn sheep
By 1950, bighorn sheep were extirpated from large areas of their range. Most extant populations of bighorn sheep (Ovis canadensis) in the Intermountain West consist of
Authors
F. J. Singer, M.E. Moses, S. Bellew, W. Sloan
Population growth, fecundity, and survivorship in recovering populations of bighorn sheep Population growth, fecundity, and survivorship in recovering populations of bighorn sheep
The single greatest obstacle to the restoration of large, healthy, populations of bighorn sheep (Ovis canadensis) in the western United States is epizootic outbreaks of bronchopneumonia that may kill 20–100% of the animals in populations. Although the species is capable of rapid initial growth rates following restoration into new habitat (λ = 1.23–1.30 have been observed), these rates of...
Authors
F. J. Singer, E. Williams, M.W. Miller, L. C. Zeigenfuss
Paradise confounded: the status of Alaska's instream flow program. Review of "Annual Summary of Instream Flow Reservations and Protection in Alaska" by Christopher E. Estes Paradise confounded: the status of Alaska's instream flow program. Review of "Annual Summary of Instream Flow Reservations and Protection in Alaska" by Christopher E. Estes
No abstract available.
Authors
Nina Burkardt
Estimating cumulative effects of clearcutting on stream temperatures Estimating cumulative effects of clearcutting on stream temperatures
The Stream Segment Temperature Model was used to estimate cumulative effects of large-scale timber harvest on stream temperature. Literature values were used to create parameters for the model for two hypothetical situations, one forested and the other extensively clearcut. Results compared favorably with field studies of extensive forest canopy removal. The model provided insight into...
Authors
J.M. Bartholow
Application of the new keystone-species concept to prairie dogs: How well does it work? Application of the new keystone-species concept to prairie dogs: How well does it work?
It has been suggested that the keystone-species concept should be dropped from ecology and conservation, primarily because the concept is poorly defined. This prompted Power et al. (1996) to refine the definition: keystone species have large effects on community structure or ecosystem function (i.e., high overall importance), and this effect should be large relative to abundance (i.e...
Authors
N.B. Kotliar
Amphibian declines: Review of some current hypotheses Amphibian declines: Review of some current hypotheses
No abstract available.
Authors
P.S. Corn
Willow Flycatcher (Empidonax traillii) Willow Flycatcher (Empidonax traillii)
No abstract available.
Authors
J.A. Sedgwick
Potential effects of climate change on surface-water quality in North America Potential effects of climate change on surface-water quality in North America
Data from long-term ecosystem monitoring and research stations in North America and results of simulations made with interpretive models indicate that changes in climate (precipitation and temperature) can have a significant effect on the quality of surface waters. Changes in water quality during storms, snowmelt, and periods of elevated air temperature or drought can cause conditions...
Authors
Peter S. Murdoch, Jill Baron, T. L. Miller
Translocations as a tool for restoring populations of bighorn sheep Translocations as a tool for restoring populations of bighorn sheep
We analyzed factors that contributed to the success of 100 translocations of bighorn sheep within six western states between 1923 and 1997. We categorized the populations as unsuccessful (i.e., extirpated or remnant,
Authors
F. J. Singer, C.M. Papouchis, K.K. Symonds
Controls on nitrogen flux in alpine/subalpine watersheds of Colorado Controls on nitrogen flux in alpine/subalpine watersheds of Colorado
High‐altitude watersheds in the Front Range of Colorado show symptoms of advanced stages of nitrogen excess, despite having less nitrogen in atmospheric deposition than other regions where watersheds retain nitrogen. In two alpine/subalpine subbasins of the Loch Vale watershed, atmospheric deposition of NO3− plus NH4+ was 3.2–5.5 kg N ha−1, and watershed export was 1.8–3.9 kg N ha−1 for...
Authors
Donald H. Campbell, Jill Baron, Kathy A. Tonnessen, Paul D. Brooks, Paul F. Schuster
A comprehensive review of Farm Bill contributions to wildlife conservation, 1985-2000 A comprehensive review of Farm Bill contributions to wildlife conservation, 1985-2000
A comprehensive review of the scientific literature was undertaken to determine wildlife responses to programs established under the conservation title of the 1985 Food Security Act as amended in 1990 and 1996 (Farm Bill). Literature was annotated and summaries of wildlife responses were provided for the Conservation Reserve Program CRP, Wetlands Reserve Program (WRP), Wildlife Habitat...
Authors
P.L. Heard, A.W. Allen, Louis B. Best, S.J. Brady, W. Burger, A.J. Esser, E. Hackett, Douglas H. Johnson, R.L. Pederson, R. E. Reynolds, C. Rewa, M.R. Ryan, R.T. Molleur, P. Buck
Thinking outside the lines: Parks and the quality of life in area communities Thinking outside the lines: Parks and the quality of life in area communities
Many national parks, national forests, and other public land units exist in highly changeable regional environments. Often the parks and forests themselves serve as important catalysts of change in the levels of tourism, outdoor recreation participation, and contribution of traveling publics to local and regional economies. Resource managers are called upon to protect lands in their
Authors
J. G. Taylor, N. Burkardt, L. Caughlan, B. L. Lamb