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: 2382
A stand-replacing fire history in upper montane forests of the southern Rocky Mountains A stand-replacing fire history in upper montane forests of the southern Rocky Mountains
Dendroecological techniques were applied to reconstruct stand-replacing fire history in upper montane forests in northern New Mexico and southern Colorado. Fourteen stand-replacing fires were dated to 8 unique fire years (1842–1901) using four lines of evidence at each of 12 sites within the upper Rio Grande Basin. The four lines of evidence were (i) quaking aspen (Populus tremuloides...
Authors
E.Q. Margolis, T.W. Swetnam, Craig D. Allen
Cascading events in linked ecological and socioeconomic systems Cascading events in linked ecological and socioeconomic systems
Cascading events that start at small spatial scales and propagate non-linearly through time to influence larger areas often have major impacts on ecosystem goods and services. Events such as wildfires and hurricanes are increasing in frequency and magnitude as systems become more connected through globalization processes. We need to improve our understanding of these events in order to...
Authors
Debra P. C. Peters, O.E. Sala, Craig D. Allen, A. Covich, M. Brunson
Simulation of flow and habitat conditions under ice, Cache la Poudre River - January 2006 Simulation of flow and habitat conditions under ice, Cache la Poudre River - January 2006
The U.S. Forest Service authorizes the occupancy and use of Forest Service lands by various projects, including water storage facilities, under the Federal Land Policy and Management Act. Federal Land Policy and Management Act permits can be renewed at the end of their term. The U.S. Forest Service analyzes the environmental effects for the initial issuance or renewal of a permit and the...
Authors
Terry Waddle
Fort Collins Science Center: 2006 Accomplishments Fort Collins Science Center: 2006 Accomplishments
In Fiscal Year 2006 (FY06), the U.S. Geological Survey (USGS) Fort Collins Science Center (FORT) continued research vital to U.S. Department of the Interior (DOI) science and management needs and associated USGS programmatic goals. FORT work also supported the science needs of other governmental departments and agencies as well as private cooperators. Specifically, FORT scientific...
Climate matching as a tool for predicting potential North American spread of Brown Treesnakes Climate matching as a tool for predicting potential North American spread of Brown Treesnakes
Climate matching identifies extralimital destinations that could be colonized by a potential invasive species on the basis of similarity to climates found in the species’ native range. Climate is a proxy for the factors that determine whether a population will reproduce enough to offset mortality. Previous climate matching models (e.g., Genetic Algorithm for Rule-set Prediction [GARP])...
Authors
Gordon H. Rodda, Robert N. Reed, Catherine S. Jarnevich
Emoia atrocostata (Littoral skink) Emoia atrocostata (Littoral skink)
No abstract available.
Authors
R.N. Reed, G.H. Rodda, T.J. Hinkle
Mammal inventories for eight National Parks in the Southern Colorado Plateau Network Mammal inventories for eight National Parks in the Southern Colorado Plateau Network
Historically, the Colorado Plateau has been the subject of many geological and biological explorations. J. W. Powell explored and mapped the canyon country of the Colorado River in 1869 (Powell 1961). C. H. Merriam, V. Bailey, M. Cary, and other employees of the Bureau of Biological Survey conducted biological explorations of the area in the late 1800s. In recent times, researchers such...
Authors
Michael A. Bogan, Keith Geluso, Shauna Haymond, Ernest W. Valdez
Applying radar technology to migratory bird conservation and management: Strengthening and expanding a collaborative Applying radar technology to migratory bird conservation and management: Strengthening and expanding a collaborative
Executive Summary Understanding the factors affecting migratory bird and bat populations during all three phases of their life cycle—breeding, nonbreeding, and migration—is critical to species conservation planning. This includes the need for information about these species’ responses to natural challenges, as well as information about the effects of human activities and structures...
Authors
Janet M. Ruth, Albert Manville, Ron Larkin, Wylie C. Barrow, Lori Johnson-Randall, Deanna K. Dawson, Robert H. Diehl, Yufang Wang, Richard S. Sojda, Rafal Angryk, Robert W. Klaver, Reggie Mead, John Paxton, Patricia J. Heglund, Eileen Kirsch, Manuel J. Suarez, Larry Robinson, Sidney A. Gauthreaux, Carroll G. Belser, Steven J. Franke, Bruno Bruderer, Jeffrey J. Buler, Frank R. Moore, David S. Mizrahi, Robert Fogg, T. Adam Kelly, Paul M. Cryan, Tim Crum, Terry J. Schuur, Dave Krueper, Robb Diehl, Tom Will
Visitor and community survey results for Prime Hook National Wildlife Refuge: Completion report Visitor and community survey results for Prime Hook National Wildlife Refuge: Completion report
This study was commissioned by the Northeast Region of the U.S. Fish and Wildlife Service (USFWS) in support of the Comprehensive Conservation Planning at Prime Hook National Wildlife Refuge (Prime Hook NWR or Refuge). The National Wildlife Refuge Improvement Act of 1997 (Public Law 105-57, USC668dd) mandates a Comprehensive Conservation Plan (CCP) for every refuge in the system. A...
Authors
Natalie R. Sexton, Susan C. Stewart, Lynne Koontz, Phadrea Ponds, Katherine D. Walters
Historical and modern disturbance regimes of pinyon-juniper vegetation in the western U.S Historical and modern disturbance regimes of pinyon-juniper vegetation in the western U.S
No abstract available.
Authors
William H. Romme, Craig D. Allen, J. Bailey, W. Baker, Brandon T. Bestelmeyer, P. Brown, K. Eisenhart, D. Huffman, Lisa Floyd-Hanna, B. Jacobs, R. Miller, Esteban Muldavin, Thomas W. Swetnam, R. Tausch, P. Weisberg
Interactions across spatial scales among forest dieback, fire, and erosion in northern New Mexico landscapes Interactions across spatial scales among forest dieback, fire, and erosion in northern New Mexico landscapes
Ecosystem patterns and disturbance processes at one spatial scale often interact with processes at another scale, and the result of such cross-scale interactions can be nonlinear dynamics with thresholds. Examples of cross-scale pattern-process relationships and interactions among forest dieback, fire, and erosion are illustrated from northern New Mexico (USA) landscapes, where long-term...
Authors
Craig D. Allen
Aerial population estimates of wild horses (Equus caballus) in the adobe town and salt wells creek herd management areas using an integrated simultaneous double-count and sightability bias correction technique Aerial population estimates of wild horses (Equus caballus) in the adobe town and salt wells creek herd management areas using an integrated simultaneous double-count and sightability bias correction technique
An aerial survey technique combining simultaneous double-count and sightability bias correction methodologies was used to estimate the population of wild horses inhabiting Adobe Town and Salt Wells Creek Herd Management Areas, Wyoming. Based on 5 surveys over 4 years, we conclude that the technique produced estimates consistent with the known number of horses removed between surveys and...
Authors
Bruce C. Lubow, Jason I. Ransom