Publications

Filters

Settings

Results

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: 2383

Publication Type

Node Release Date

States

Fulltext search

January 1, 1998

A ponderosa pine natural area reveals its secrets A ponderosa pine natural area reveals its secrets

Monument Canyon Research Natural Area preserves an unlogged 259-hectare stand of old-growth ponderosa pine in the Jemez Mountains of New Mexico. This preserve, established in 1932, is the oldest research natural area in the state. This two-tiered forest displays an old-growth density of 100 stems per hectare (Muldavin et al. 1995), with an understory thicket of stagnant saplings and...

Authors

Craig D. Allen

Ecosystems Mission Area, Fort Collins Science Center

January 1, 1998

Elk reintroductions Elk reintroductions

Rocky Mountain elk are native to northcentral New Mexico, including the Jemez Mountains, whereas a different subspecies, Merriam’s elk, inhabited southern New Mexico, east-central Arizona, and the Mexican border region (Hall 1981). Merriam’s elk went extinct around 1900 in New Mexico, and native Rocky Mountain elk were extirpated by 1909 (Findley et al. 1975). Although elk were known to...

Authors

Craig D. Allen

Ecosystems Mission Area, Fort Collins Science Center

January 1, 1998

Using geostatistical methods to estimate snow water equivalence distribution in a mountain watershed Using geostatistical methods to estimate snow water equivalence distribution in a mountain watershed

Knowledge of the spatial distribution of snow water equivalence (SWE) is necessary to adequately forecast the volume and timing of snowmelt runoff. In April 1997, peak accumulation snow depth and density measurements were independently taken in the Loch Vale watershed (6.6 km2), Rocky Mountain National Park, Colorado. Geostatistics and classical statistics were used to estimate SWE...

Authors

B. Balk, K. Elder, Jill Baron

Ecosystems Mission Area, Fort Collins Science Center

January 1, 1998

Information-theoretic model selection and model averaging for closed-population capture-recapture studies Information-theoretic model selection and model averaging for closed-population capture-recapture studies

Specification of an appropriate model is critical to valid statistical inference. Given the “true model” for the data is unknown, the goal of model selection is to select a plausible approximating model that balances model bias and sampling variance. Model selection based on information criteria such as AIC or its variant AICc, or criteria like CAIC, has proven useful in a variety of...

Authors

Thomas R. Stanley, Kenneth P. Burnham

Ecosystems Mission Area, Fort Collins Science Center

January 1, 1998

Landscape changes in the southwestern United States: Techniques, long-term datasets, and trends: Chapter 9 Landscape changes in the southwestern United States: Techniques, long-term datasets, and trends: Chapter 9

No abstract available.

Authors

Craig D. Allen, Julio L. Betancourt, Thomas W. Swetnam

Ecosystems Mission Area, Fort Collins Science Center

January 1, 1998

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

Ecosystems Mission Area, Fort Collins Science Center

January 1, 1998

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

Ecosystems Mission Area, Fort Collins Science Center

January 1, 1998

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

Ecosystems Mission Area, Fort Collins Science Center

January 1, 1998

Foreword Foreword

No abstract available.

Authors

Jonathan M. Friedman, Michael L. Scott, Duncan Patten

Ecosystems Mission Area, Fort Collins Science Center

January 1, 1998

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

Ecosystems Mission Area, Fort Collins Science Center

December 31, 1997