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: 5350
Biological and environmental drivers of early life fawn survival in a declining pronghorn population Biological and environmental drivers of early life fawn survival in a declining pronghorn population
Pronghorn Antilocapra americana occupy only a portion of their historical range and in Oklahoma occur at the eastern edge of the species' contemporary distribution. Monitoring has suggested pronghorn populations in Oklahoma have declined in recent years. We captured and collared 125 adult females across two winters, monitored them for signs of parturition during each subsequent spring...
Authors
Derek P. Hahn, Robert Charles Lonsinger, M. Colter Chitwood, Anna K. Moeller, Matthew T. Turnley, Marlin M. Dart, Levi J. Heffelfinger, Evan P. Tanner, Michael J. Cherry, H. George Wang, W. Sue Fairbanks
Discharge magnitude drives interannual variation in distribution of the invertebrate host Manayunkia occidentalis of the salmon parasite Ceratonova shasta Discharge magnitude drives interannual variation in distribution of the invertebrate host Manayunkia occidentalis of the salmon parasite Ceratonova shasta
Objective The objective of this study was to evaluate statistical evidence for relationships between flow event characteristics and annelid host distribution, an important and necessary step toward providing and justifying management actions. Declines in Klamath River salmon have been attributed to infection and disease that are caused by the myxozoan parasite Ceratonova shasta. Flow...
Authors
Julie D. Alexander, Taylor T. Daley, Damon H. Goodman, Jerri Bartholomew, Heather Robinson, Nicholas A Som
Two-stage approach to automatic detection with machine learning for improved surveillance of the invasive Cuban treefrog Two-stage approach to automatic detection with machine learning for improved surveillance of the invasive Cuban treefrog
The Cuban treefrog (Osteopilus septentrionalis), as an invasive species in the southern United States, presents a need for effective surveillance. Automated detection expedites processing of audio data for large-scale surveillance and monitoring programs. However, current available methods commonly used for anuran species have not been sufficient to detect Cuban treefrogs. Here, we...
Authors
Kaitlin Huber, J. Hardin Waddle, Brad M. Glorioso, Therese M. Donovan
Resource selection for an endangered flying squirrel, Glaucomys sabrinus coloratus, in a montane sky-island system Resource selection for an endangered flying squirrel, Glaucomys sabrinus coloratus, in a montane sky-island system
Geographically isolated endemic species and their habitats in montane systems face stressors of rapid climate change as well as legacy and contemporary land use change. In the case of endangered species in fragmented terrestrial montane habitats, effectively sky-islands, insight into habitat use and resource selection is vital for effective conservation measures. We created a resource...
Authors
Katherine M. Gorman, Christine A. Kelly, Corinne A. Diggins, Mark J. Endries, Hila Taylor, W. Mark Ford
Nutritional and reproductive dynamics of moose near their southern range limit Nutritional and reproductive dynamics of moose near their southern range limit
Understanding the relationships between nutrition and life-history characteristics can provide insight into the factors limiting populations. Moose (Alces alces) at their southern range periphery are subject to nutritional constraints because of marginal climatic and habitat conditions, but how these limitations influence vital rates remains a point of uncertainty. We examined the...
Authors
Alexander B. May, Rebecca L. Levine, Lee Knox, Corey Class, Matthew J. Kauffman, Kevin L. Monteith
Social influences complement environmental cues to stimulate migrating juvenile salmon Social influences complement environmental cues to stimulate migrating juvenile salmon
Background
Authors
Maria Kuruvilla, Thomas P. Quinn, Joseph H. Anderson, Mark David Scheuerell, Erika M. Miller, Andrew G. Berger, Connie Okasaki, John R. McMillan, George R. Pess, Peter A.H. Westley, Andrew M. Berdahl
Exploring management options for moose at their southern range limits considering growing disease risk Exploring management options for moose at their southern range limits considering growing disease risk
1. Populations of cold-adapted species are increasingly vulnerable along their low-latitude range limits due to shifting environmental conditions, biotic interactions, and anthropogenic pressures. Managing these populations is particularly challenging because of complex ecological dynamics, conflicting stakeholder interests, and decision-making under uncertainty. 2. We explored...
Authors
Jennifer A. Grauer, Jacqueline L. Frair, Krysten L. Schuler, David W. Kramer, Angela K. Fuller
Multiscale resource selection for a reintroduced elk population Multiscale resource selection for a reintroduced elk population
Patterns of resource selection are driven by the decision-making processes of animals occurring at multiple scales from where to establish a home range (i.e., second order selection) to which resource patches to use within the home range (i.e., third order selection). Elk (Cervus canadensis) were reintroduced to southwestern Virginia, USA, from 2012 to 2014 following successful...
Authors
Braiden A. Quinlan, Brett R. Jesmer, Jacalyn P. Rosenberger, W. Mark Ford, Michael J. Cherry
Relative activity of three bat species Impacted by white-nose syndrome on the Chesapeake and Ohio Canal National Historical Park Relative activity of three bat species Impacted by white-nose syndrome on the Chesapeake and Ohio Canal National Historical Park
White-nose syndrome, a disease caused by the fungal-pathogen Pseudogymnoascus destructans, has caused drastic reductions in populations of several North American hibernating species of bats including Myotis lucifugus (Little Brown Bat), Myotis septentrionalis (Northern Long-eared Bat), and Perimyotis subflavus (Tricolored Bat). Recent data indicate that populations of Little Brown Bats...
Authors
Megan L. Moran, Amber S. Litterer, Jesse L. De La Cruz, Sabrina M. Deeley, W. Mark Ford
Seasonal and annual survival of acoustically tagged juvenile Gulf sturgeon in the Apalachicola River, Florida, USA Seasonal and annual survival of acoustically tagged juvenile Gulf sturgeon in the Apalachicola River, Florida, USA
Gulf sturgeon Acipenser desotoi are anadromous fish that have undergone major population declines throughout their range. Habitat alteration and previous overharvest in commercial fisheries led to the species being listed as ‘threatened’ under the US Endangered Species Act in 1991. An accurate understanding of population dynamics, including survival, is necessary for monitoring...
Authors
Russell T. Wilson, Adam J. Kaeser, Stephen W. Parker, Brian J. Irwin, Martin J. Hamel, Adam G. Fox
Potential causes of shedding aggregations in prairie rattlesnakes Potential causes of shedding aggregations in prairie rattlesnakes
Aggregation is common across taxa and typically confers clear benefits to group members (e.g., allo-parenting, group defense, thermoregulation, access to resources). But aggregation can also be costly. The mechanisms that underpin aggregation—and the cues that elicit it—inform our understanding of how animals resolve tradeoffs among selection pressures. Snakes sometimes form conspicuous
Authors
Emily Martin, Courtney J. Conway
Ungulate migrations of the Western United States, volume 6 Ungulate migrations of the Western United States, volume 6
This report, volume 6 in the “Ungulate Migrations of the Western United States” report series, showcases the migrations of 23 ungulate herds in the Western United States. The report series is produced by the Corridor Mapping Team (CMT). Led by the U.S. Geological Survey, the CMT is a collaboration among 11 State agencies, as well as regional and Federal partners, and an expanding number...
Authors
Matthew J. Kauffman, Blake Lowrey, Jennifer L. McKee, Chloe J. Beaupre, Jeffrey L. Beck, Jon P. Beckmann, Scott Bergen, Joel Berger, Regan Berkley, Nathan Borg, Peyton Carl, Michelle Cowardin, Sarah Dewey, Katie M. Dugger, Amy Ehrhart, Jessica Fort, Eric Freeman, Ian Freeman, Emily R. Gelzer, David German, Jacob Gray, Evan Greenspan, Zach Gregory, Emily Hagler, Makeda Hanson, Valerie D. Hinojoza-Rood, Pat Hnilicka, Nick Jaffe, Andrew F. Jakes, Aran Johnson, Jaron T. Kolek, Art Lawson, Zach Lockyer, Daryl Lutz, Cody McKee, Jane McKeever, Jerod A. Merkle, Matthew A. Mumma, Dennis Newman, Erika Peckham, Jill E. Randall, Tempe Regan, Adele K. Reinking, Robert Ritson, William J. Rudd, Brianna M. Russo, Hall Sawyer, Cody Schroeder, Brandon Scurlock, Jeff Short, Bret Stansberry, Erik Steiner, Alethea Steingisser, Tom Stephenson, Eric VanNatta, Cody F. Wallace, Brad Weinmeister, Don Whittaker, Tatjana Woody, Sean Yancey