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: 5125
Annual changes in seasonal river water temperatures in the eastern and western United States Annual changes in seasonal river water temperatures in the eastern and western United States
Changes in river water temperatures are anticipated to have direct effects on thermal habitat and fish population vital rates, and therefore, understanding temporal trends in water temperatures may be necessary for predicting changes in thermal habitat and how species might respond to such changes. However, many investigations into trends in water temperatures use regression methods that...
Authors
Tyler Wagner, Stephen R. Midway, Joanna B. Whittier, Jefferson T. DeWeber, Craig P. Paukert
Suppression of invasive lake trout in an isolated backcountry lake in Glacier National Park Suppression of invasive lake trout in an isolated backcountry lake in Glacier National Park
Fisheries managers have implemented suppression programmes to control non-native lake trout, Salvelinus namaycush (Walbaum), in several lakes throughout the western United States. This study determined the feasibility of experimentally suppressing lake trout using gillnets in an isolated backcountry lake in Glacier National Park, Montana, USA, for the conservation of threatened bull...
Authors
C. R. Fredenberg, Clint C. Muhlfeld, Christopher S. Guy, Vincent S. D'Angelo, Christopher C. Downs, John M. Syslo
Nonbreeding isolation and population-specific migration patterns among three populations of Golden-winged Warblers Nonbreeding isolation and population-specific migration patterns among three populations of Golden-winged Warblers
Golden-winged Warblers (Vermivora chrysoptera) are Nearctic–Neotropical migrants experiencing varied regional population trends not fully explained by breeding-grounds factors such as nest success. A lack of detailed information on the nonbreeding distributions, migration routes, or timing of migration among populations hampers our ability to identify population processes outside the...
Authors
Gunnar R. Kramer, Henry M. Streby, Sean M. Peterson, Justin A. Lehman, David A. Buehler, Petra B. Wood, Darin J. McNeil, Jeffrey L. Larkin, David E. Andersen
Assessing conditions influencing the longitudinal distribution of exotic brown trout (Salmo trutta) in a mountain stream: a spatially-explicit modeling approach Assessing conditions influencing the longitudinal distribution of exotic brown trout (Salmo trutta) in a mountain stream: a spatially-explicit modeling approach
Trout species often segregate along elevational gradients, yet the mechanisms driving this pattern are not fully understood. On the Logan River, Utah, USA, exotic brown trout (Salmo trutta) dominate at low elevations but are near-absent from high elevations with native Bonneville cutthroat trout (Onchorhynchus clarkii utah). We used a spatially-explicit Bayesian modeling approach to...
Authors
Christy S. Meredith, Phaedra E. Budy, Mevin Hooten, Marcos Oliveira Prates
Pectoral fin contact as a mechanism for social bonding among dolphins Pectoral fin contact as a mechanism for social bonding among dolphins
Bottlenose dolphins are large-brained social mammals residing in a fission-fusion society with relationships that are established and maintained over decades. We examined a decade-long data set of inter-individual pectoral fin contact exchanges to better understand how dolphins share information via tactile contact. Sex and age are significant factors in pectoral fin contact within non...
Authors
Kathleen Dudzinski, Christine Ribic
Evolutionary and functional mitogenomics associated with the genetic restoration of the Florida panther Evolutionary and functional mitogenomics associated with the genetic restoration of the Florida panther
Florida panthers are endangered pumas that currently persist in reduced patches of habitat in South Florida, USA. We performed mitogenome reference-based assemblies for most parental lines of the admixed Florida panthers that resulted from the introduction of female Texas pumas into South Florida in 1995. With the addition of 2 puma mitogenomes, we characterized 174 single nucleotide...
Authors
Alexander Ochoa, David P. Onorato, Robert R. Fitak, Melody Roelke-Parker, Melanie Culver
Biological and social outcomes of antler point restriction harvest regulations for white-tailed deer Biological and social outcomes of antler point restriction harvest regulations for white-tailed deer
Selective harvest criteria, such as antler point restrictions (APRs), have been used to regulate harvest of male ungulates; however, comprehensive evaluation of the biological and social responses to this management strategy is lacking. In 2002, Pennsylvania adopted new APRs for white-tailed deer (Odocoileus virginianus) that required, depending on wildlife management unit, ≥3 or ≥4...
Authors
Bret D. Wallingford, Duane R. Diefenbach, Eric S. Long, Christopher S. Rosenberry, Gary Alt
Animal movement: Statistical models for telemetry data Animal movement: Statistical models for telemetry data
The study of animal movement has always been a key element in ecological science, because it is inherently linked to critical processes that scale from individuals to populations and communities to ecosystems. Rapid improvements in biotelemetry data collection and processing technology have given rise to a variety of statistical methods for characterizing animal movement. The book serves...
Authors
Mevin Hooten, Devin S. Johnson, Brett T. McClintock, Juan M. Morales
Associations among habitat characteristics and meningeal worm prevalence in eastern South Dakota, USA Associations among habitat characteristics and meningeal worm prevalence in eastern South Dakota, USA
Few studies have evaluated how wetland and forest characteristics influence the prevalence of meningeal worm (Parelaphostrongylus tenuis) infection of deer throughout the grassland biome of central North America. We used previously collected, county-level prevalence data to evaluate associations between habitat characteristics and probability of meningeal worm infection in white-tailed...
Authors
Christopher N. Jacques, Jonathan A. Jenks, Robert W. Klaver, Shelli A. Dubay
Multinomial N-mixture models improve the applicability of electrofishing for developing population estimates of stream-dwelling Smallmouth Bass Multinomial N-mixture models improve the applicability of electrofishing for developing population estimates of stream-dwelling Smallmouth Bass
Failure to account for variable detection across survey conditions constrains progressive stream ecology and can lead to erroneous stream fish management and conservation decisions. In addition to variable detection’s confounding long-term stream fish population trends, reliable abundance estimates across a wide range of survey conditions are fundamental to establishing species...
Authors
Robert Mollenhauer, Shannon K. Brewer
Gear comparison for sampling age-0 Mountain Whitefish in the Madison River, Montana Gear comparison for sampling age-0 Mountain Whitefish in the Madison River, Montana
The efficacy of various sampling gears for age-0 Mountain Whitefish Prosopium williamsoni is largely unknown, which makes it difficult to investigate recruitment and early life history dynamics for the species. We compared four gears: seine, backpack electrofisher, minnow trap, and lighted minnow trap. Gears were tested in backwaters, large channels, and small channels in the Madison...
Authors
Jan K. Boyer, Christopher S. Guy, Molly A. H. Webb, Travis B. Horton, Thomas E. McMahon
The Bayesian group lasso for confounded spatial data The Bayesian group lasso for confounded spatial data
Generalized linear mixed models for spatial processes are widely used in applied statistics. In many applications of the spatial generalized linear mixed model (SGLMM), the goal is to obtain inference about regression coefficients while achieving optimal predictive ability. When implementing the SGLMM, multicollinearity among covariates and the spatial random effects can make computation
Authors
Trevor J. Hefley, Mevin Hooten, Ephraim M. Hanks, Robin E. Russell, Daniel P. Walsh