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: 2408
Carbon cycling in terrestrial environments: Chapter 17 Carbon cycling in terrestrial environments: Chapter 17
This chapter reviews a number of applications of isotopic techniques for the investigation of carbon cycling processes. Carbon dioxide (C02) is an important greenhouse gas. Its concentration in the atmosphere has increased from an estimated 270 ppm at the beginning of the industrial revolution to ∼ 360 ppm at present. Climatic conditions and atmospheric C02 concentration also influence...
Authors
Yang Wang, Thomas G. Huntington, Laurie J. Osher, Leonard I Wassenaar, Susan E. Trumbore, Ronald Amundson, Jennifer W. Harden, Diane M. McKnight, Sherry L. Schiff, George R. Aiken, W. Berry Lyons, Ramon O. Aravena, Jill Baron
Estimator selection for closed-population capture: recapture Estimator selection for closed-population capture: recapture
For valid statistical inference, it is important to select an appropriate statistical model. In the analysis of capture-recapture data under the closed-population models of Otis et al. (1978), information theoretic and hypothesis testing approaches to model selection are not practical, because some of the models have likelihoods with nonidenti- fiable parameters. A further problem is...
Authors
Thomas R. Stanley, Kenneth P. Burnham
Chemical and biological characteristics of desert rock pools in intermittent streams of Capitol Reef National Park, Utah Chemical and biological characteristics of desert rock pools in intermittent streams of Capitol Reef National Park, Utah
Chemical variability and biological communities of rock pools found in small desert drainage basins of Capitol Reef National Park were characterized over 8 mon in 1994. Neither flooding, drying, nor the presence or absence of surrounding vegetated wetlands had a great effect on chemical composition, which was very dilute and fluctuated somewhat in response to rain events. Neither...
Authors
Jill Baron, Toben LaFrancois, Boris C. Kondratieff
Selecting habitat management strategies on refuges Selecting habitat management strategies on refuges
This report is a joint effort of the Biological Resources Division, U.S. Geological Survey and the U.S. Fish and Wildlife Service (FWS) to provide National Wildlife Refuge (NWR) managers guidance on the selection and evaluation of habitat management strategies to meet stated objectives. The FWS recently completed a handbook on writing refuge management goals and objectives (U.S. Fish and...
Authors
Richard L. Schroeder, Wayne J. King, John E. Cornely
A policy model to initiate environmental negotiations: Three hydropower workshops A policy model to initiate environmental negotiations: Three hydropower workshops
How do I get started in natural resource negotiations? Natural resource managers often face difficult negotiations when they implement laws and policies regulating such resources as water, wildlife, wetlands, endangered species, and recreation. As a result of these negotiations, managers must establish rules, grant permits, or create management plans. The Legal‐Institutional Analysis...
Authors
Berton Lee Lamb, Jonathan G. Taylor, Nina Burkardt, Phadrea D. Ponds
Viewpoint: Sustainability of piñon-juniper ecosystems - A unifying perspective of soil erosion thresholds Viewpoint: Sustainability of piñon-juniper ecosystems - A unifying perspective of soil erosion thresholds
Many pinon-juniper ecosystem in the western U.S. are subject to accelerated erosion while others are undergoing little or no erosion. Controversy has developed over whether invading or encroaching pinon and juniper species are inherently harmful to rangeland ecosystems. We developed a conceptual model of soil erosion in pinon-jumper ecosystems that is consistent with both sides of the...
Authors
David W. Davenport, D.D. Breshears, B.P. Wilcox, Craig D. Allen
Responses of riparian cottonwoods to alluvial water-table declines Responses of riparian cottonwoods to alluvial water-table declines
No abstract available.
Authors
G.T. Auble, M. L. Scott, P.B. Shafroth, G. C. Lines
The captive environment and reintroduction: the black-footed ferret as a case study with comments on other taxa The captive environment and reintroduction: the black-footed ferret as a case study with comments on other taxa
No abstract available.
Authors
B. J. Miller, D. E. Biggins, Astrid Vargas, M. Hutchins, L. Hanebury, J. L. Godbey, Gerardo Ceballos, S. Anderson, J. L. Oldemeyer, F. L. Knopf
Foreword Foreword
No abstract available.
Authors
Jonathan M. Friedman, Michael L. Scott, Duncan Patten
Evaluating landscape health: Integrating societal goals and biophysical process Evaluating landscape health: Integrating societal goals and biophysical process
Evaluating landscape change requires the integration of the social and natural sciences. The social sciences contribute to articulating societal values that govern landscape change, while the natural sciences contribute to understanding the biophysical processes that are influenced by human activity and result in ecological change. Building upon Aldo Leopold's criteria for landscape...
Authors
D.J. Rapport, C. Gaudet, J.R. Karr, Jill Baron, C. Bohlen, W. Jackson, Bruce Jones, R.J. Naiman, B. Norton, M. M. Pollock
Experimental methods for restoring boreal toad populations in Rocky Mountain National Park Experimental methods for restoring boreal toad populations in Rocky Mountain National Park
No abstract available.
Authors
Therese L. Johnson, Erin L. Muths, P. Stephen Corn