Publications
Browse publications authored by our scientists. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Filter Total Items: 5115
Climate-smart management of biodiversity Climate-smart management of biodiversity
Determining where biodiversity is likely to be most vulnerable to climate change and methods to reduce that vulnerability are necessary first steps to incorporate climate change into biodiversity management plans. Here, we use a spatial climate change vulnerability assessment to (1) map the potential vulnerability of terrestrial biodiversity to climate change in the northeastern United...
Authors
Christopher P. Nadeau, Angela K. Fuller, Daniel L. Rosenblatt
Population characteristics of channel catfish near the northern edge of their distribution: implications for management Population characteristics of channel catfish near the northern edge of their distribution: implications for management
Channel catfish, Ictalurus punctatus (Rafinesque), populations in six lakes in northern Idaho, USA, were sampled to describe their population characteristics. During the summers of 2011 and 2012, 4864 channel catfish were sampled. Channel catfish populations had low to moderate catch rates, and length structure was dominated by fish
Authors
K. P. Carter-Lynn, Michael C. Quist
Jaguar critical habitat designation causes concern for Southwestern ranchers Jaguar critical habitat designation causes concern for Southwestern ranchers
The designation of jaguar critical habitat in April 2014 in southern Arizona and southwestern New Mexico created concern for livestock ranchers in the region. We interviewed ranchers to understand their concerns with the jaguar critical habitat designation and their attitudes toward jaguars, wildlife conservation, and resource management in general. Ranchers we interviewed were concerned
Authors
Colleen Svancara, Aaron M. Lien, Wendy T. Vanasco, Laura Lopez-Hoffman, George B. Ruyle
Evaluating multi-level models to test occupancy state responses of Plethodontid salamanders Evaluating multi-level models to test occupancy state responses of Plethodontid salamanders
Plethodontid salamanders are diverse and widely distributed taxa and play critical roles in ecosystem processes. Due to salamander use of structurally complex habitats, and because only a portion of a population is available for sampling, evaluation of sampling designs and estimators is critical to provide strong inference about Plethodontid ecology and responses to conservation and...
Authors
Andrew J. Kroll, Tiffany S. Garcia, Jay E. Jones, Katie M. Dugger, Blake Murden, Josh Johnson, Summer Peerman, Ben Brintz, Michael Rochelle
Elk habitat suitability map for North Carolina Elk habitat suitability map for North Carolina
Although eastern elk (Cervus elaphus canadensis) were extirpated from the eastern United States in the 19th century, they were successfully reintroduced in the North Carolina portion of the Great Smoky Mountains National Park in the early 2000s. The North Carolina Wildlife Resources Commission (NCWRC) is evaluating the prospect of reintroducing the species in other locations in the state...
Authors
Steven G. Williams, David T. Cobb, Jaime A. Collazo
Spatial and temporal variation in recruitment and growth of Channel Catfish Alabama bass and Tallapoosa Bass in the Tallapoosa River and associated tributaries Spatial and temporal variation in recruitment and growth of Channel Catfish Alabama bass and Tallapoosa Bass in the Tallapoosa River and associated tributaries
Effects of hydrology on growth and hatching success of age-0 black basses and Channel Catfish were examined in regulated and unregulated reaches of the Tallapoosa River, Alabama. Species of the family Centrarchidae, Ictalurus punctatus Channel Catfish and Pylodictis olivaris Flathead Catfish were also collected from multiple tributaries in the basin. Fish were collected from 2010-2014...
Authors
Elise R. Irwin, Taconya Goar
Viewing the status of Virginia’s environment through the lens of freshwater fishes Viewing the status of Virginia’s environment through the lens of freshwater fishes
No abstract available.
Authors
Paul L. Angermeier, M. J. Pinder
Ground-based thermal imaging of stream surface temperatures: Technique and evaluation Ground-based thermal imaging of stream surface temperatures: Technique and evaluation
We evaluated a ground-based handheld thermal imaging system for measuring water temperatures using data from eight southwestern USA streams and rivers. We found handheld thermal imagers could provide considerably more spatial information on water temperature (for our unit one image = 19,600 individual temperature measurements) than traditional methods could supply without a prohibitive...
Authors
Scott A. Bonar, Sally J. Petre
Fatty-acid profiles of white muscle and liver in stream-maturing steelhead trout Oncorhynchus mykiss from early migration to kelt emigration Fatty-acid profiles of white muscle and liver in stream-maturing steelhead trout Oncorhynchus mykiss from early migration to kelt emigration
The profiles of specific fatty acids (FA) in white muscle and liver of fasting steelhead troutOncorhynchus mykiss were evaluated at three periods during their prespawning migration and at kelt emigration in the Snake–Columbia River of Washington, Oregon and Idaho, to improve the understanding of energy change. Twenty-seven FAs were identified; depletion of 10 of these was positively...
Authors
Zachary L. Penney, Christine M. Moffitt
A methodology for quantifying and mapping ecosystem services provided by watersheds A methodology for quantifying and mapping ecosystem services provided by watersheds
Watershed processes – physical, chemical, and biological – are the foundation for many benefits that ecosystems provide for human societies. A crucial step toward accurately representing those benefits, so they can ultimately inform decisions about land and water management, is the development of a coherent methodology that can translate available data into the ecosystem services (ES)...
Authors
Amy M. Villamagna, Paul L. Angermeier
Day-roost tree selection by northern long-eared bats—What do non-roost tree comparisons and one year of data really tell us? Day-roost tree selection by northern long-eared bats—What do non-roost tree comparisons and one year of data really tell us?
Bat day-roost selection often is described through comparisons of day-roosts with randomly selected, and assumed unused, trees. Relatively few studies, however, look at patterns of multi-year selection or compare day-roosts used across years. We explored day-roost selection using 2 years of roost selection data for female northern long-eared bats (Myotis septentrionalis) on the Fort Knox...
Authors
Alexander Silvis, W. Mark Ford, Eric R. Britzke
Radio-transmitters have no impact on survival of pre-fledged American Woodcocks Radio-transmitters have no impact on survival of pre-fledged American Woodcocks
American Woodcocks (Scolopax minor) are a high priority species of conservation need across most of their breeding range due to long-term population declines. Survival of juveniles may be key to understanding these population declines, but there have been few direct estimates of juvenile woodcock survival rates, and no recent assessment of the possible effect of radio-tagging on juvenile...
Authors
Kyle O. Daly, David E. Andersen, Wayne L. Brininger, Thomas R. Cooper