Theses
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 100 theses authored by our scientists going back to 1959 and refine search by topic, location, year, and advanced search.
Filter Total Items: 158
The role of fire, rodents and ants in changing plant communities in the Mojave Desert
No abstract available at this time
Authors
T. C. Esque
Trophic performance of Oncorhynchus mykiss in tributaries of the south fork Trinity River, northern California
No abstract available
Authors
S.G. McCarthy
Habitat characteristics associated with abundance of band-tailed pigeons and use of mineral sites in the Pacific Northwest
No abstract available at this time
Authors
C.T. Overton
Migration and thermoregulation strategies of hoary bats (Lasiurus cinereus) in North America
No abstract available.
Authors
Paul M. Cryan
Modeling tritium transport through a deep unsaturated zone, Amargosa Desert Research Site, Nye County, Nevada
No abstract available.
Authors
C.J. Mayers
Physiological ecology of the invasive annual grass Bromus madritensis ssp. Rubens and its interactions with native Mojave Desert species
No abstract available at this time
Authors
L.A. DeFalco
Quantile regression models of animal habitat relationships
Typically, all factors that limit an organism are not measured and included in statistical models used to investigate relationships with their environment. If important unmeasured variables interact multiplicatively with the measured variables, the statistical models often will have heterogeneous response distributions with unequal variances. Quantile regression is an approach for estimating the c
Authors
Brian S. Cade
Responses of small terrestrial vertebrates to roads in a coastal sage scrub ecosystem
No abstract available at this time
Authors
C.S. Brehme
Extracting temporal and spatial information from remotely sensed data for mapping wildlife habitat: Tucson
The research accomplished in this dissertation used both mathematical and statistical techniques to extract and evaluate measures of landscape temporal dynamics and spatial structure from remotely sensed data for the purpose of mapping wildlife habitat. By coupling the landscape measures gleaned from the remotely sensed data with various sets of animal sightings and population data, effective mode
Authors
Cynthia S.A. Wallace, Stuart E. Advised by Marsh
Swimming performance of upstream migrant fishes: New methods, new perspectives
The ability to traverse barriers of high water velocity limits the distributions of many diadromous and other migratory fish species, and is central to effective fishway design. This dissertation provides a detailed analysis of volitional sprinting behavior of six migratory fish species (American shad Alosa sapidissima, alewife A. pseudoharengus, blueback herring A. aestivalis, striped bass Morone
Authors
Theodore R. Castro-Santos
Artificial intelligence based decision support for trumpeter swan management
The number of trumpeter swans (Cygnus buccinator) breeding in the Tri-State area where Montana, Idaho, and Wyoming come together has declined to just a few hundred pairs. However, these birds are part of the Rocky Mountain Population which additionally has over 3,500 birds breeding in Alberta, British Columbia, Northwest Territories, and Yukon Territory. To a large degree, these birds seem to have
Authors
Richard S. Sojda