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: 2389
Long-term ecosystem studies in Isle Royale, Olympic, and Rocky Mountain National Parks; Noatak National Preserve, and Fraser Experimental Forest; Noatak National Preserve, and Fraser Experimental Forest. Research Report no. 95 Long-term ecosystem studies in Isle Royale, Olympic, and Rocky Mountain National Parks; Noatak National Preserve, and Fraser Experimental Forest; Noatak National Preserve, and Fraser Experimental Forest. Research Report no. 95
No abstract available.
Authors
R. Stottlemyer, Jill Baron, R. Edmonds, L. Scherbarth, Heidi Steltzer
What records have we been breaking? What records have we been breaking?
"Today was another record-breaking day," the evening radio or television declares. High temperatures, low temperatures, floods, drought - take your choice. But how can we put these pronouncements in perspective? What do they really mean? We present two types of information in this article: 1) an analysis of daily air temperature and precipitation for Fort Collins and 2) an analysis of...
Authors
J.M. Bartholow, R. Milhous
Influences of spatial and temporal variation on fish-habitat relationships defined by regression quantiles Influences of spatial and temporal variation on fish-habitat relationships defined by regression quantiles
We used regression quantiles to model potentially limiting relationships between the standing crop of cutthroat trout Oncorhynchus clarki and measures of stream channel morphology. Regression quantile models indicated that variation in fish density was inversely related to the width:depth ratio of streams but not to stream width or depth alone. The spatial and temporal stability of model
Authors
J. B. Dunham, B.S. Cade, J.W. Terrell
Taxonomic assessment of the black bear (Ursus americanus) in the eastern United States Taxonomic assessment of the black bear (Ursus americanus) in the eastern United States
The subspecific status of the Louisiana black bear (Ursus americanus luteolus) and Florida black bear (U. a. floridanus) were assessed using morphologic features to determine their distinctness in relation to one another and to the black bear (U. a. americanus). Forty-four dimensions were recorded from skulls of 125 male and 127 female adult (4.5 years or older) bears. Results showed...
Authors
M.L. Kennedy, P.K. Kennedy, M.A. Bogan, J.L. Waits
Invasive plant species: Inventory, mapping, and monitoring - A national strategy Invasive plant species: Inventory, mapping, and monitoring - A national strategy
America is under siege by invasive species of plants and animals, and by diseases. The current environmental, economic, and health-related costs of invasive species could exceed $138 billion per year-more than all other natural disasters combined. Notorious examples include West Nile virus, Dutch elm disease, chestnut blight, and purple loose- strife in the Northeast; kudzu, Brazilian...
Authors
J. Larry Ludke, Frank D’Erchia, Jan Coffelt, Leanne Hanson
Planning for the conservation and development of infrastructure resources in urban areas-Colorado front range urban corridor: Things planners, decision-makers, and the public should know Planning for the conservation and development of infrastructure resources in urban areas-Colorado front range urban corridor: Things planners, decision-makers, and the public should know
This Circular provides a basic understanding of the characteristics, location, distribution, and quality of infrastructure resources (natural aggregate, energy, and water) in the Colorado Front Range urban corridor between Denver and Ft. Collins. With this understanding, the reader explores the many factors that affect the current and future availability of those resources, including the
Authors
Belinda F. Arbogast, L. Rick Arnold, Neil S. Fishman, William H. Langer, Carol S. Mladinich, James E. Roelle, David R. Wilburn
Attitudes, values and perceptions of National Wildlife Refuge managers and biologists Attitudes, values and perceptions of National Wildlife Refuge managers and biologists
No abstract available.
Authors
Ayeisha A. Brinson
The heart of the Rockies: Montane and subalpine ecosystems The heart of the Rockies: Montane and subalpine ecosystems
No abstract available.
Authors
T.J. Stohlgren, T.T. Veblen, K.C. Kendall, W.L. Baker, Craig D. Allen, J.A. Logan, K.C. Ryan
Influences of herbivory and water on willow in elk winter range Influences of herbivory and water on willow in elk winter range
Elimination of large predators and reduced hunter harvest have led to concerns that an increasing elk (Cervus elaphus) population may be adversely affecting vegetation on the low-elevation elk winter range of Rocky Mountain National Park, Colorado, USA. Beaver (Castor canadensis) and their impoundments also have declined dramatically (94%) in the same area over the past 50 years...
Authors
L. C. Zeigenfuss, F. J. Singer, S. A. Williams, T. L. Johnson
Differences in Englemann spruce forest biogeochemistry east and west of the Continental Divide in Colorado, USA Differences in Englemann spruce forest biogeochemistry east and west of the Continental Divide in Colorado, USA
We compared Englemann spruce biogeochemical processes in forest stands east and west of the Continental Divide in the Colorado Front Range. The divide forms a natural barrier for air pollutants such that nitrogen (N) emissions from the agricultural and urban areas of the South Platte River Basin are transported via upslope winds to high elevations on the east side but rarely cross over...
Authors
H.M. Rueth, Jill Baron