Publications
This is a list of publications written by Patuxent employees since Patuxent opened in 1939. To search for Patuxent's publications by author or title, please click below to go to the USGS Publication Warehouse.
Filter Total Items: 8283
Persistence of native riverine fishes downstream from two hydropower dams with contrasting operations
Identifying hydropower dam operations that lessen detrimental effects on downstream fauna could inform conservation strategies for native fishes. We compared occurrence of native fishes in 20 shoal habitats downstream from two differently operated hydropower dams in the Coosa River system, Georgia, USA. Species richness averaged 7 and 11, respectively, in surveys downstream from (1) a hydropeaking
Authors
Mary Freeman, Brett Albanese, Phillip M. Bumpers, Megan M. Hagler, Andrew J. Nagy, Byron J. Freeman, Seth J. Wenger
Presence of hummock and hollow microtopography reflects shifting balances of shallow subsidence and root zone expansion along forested wetland river gradients
Tidal freshwater forested wetlands (TFFWs) are in an active phase of transition to tidal marsh with sea level rise and salinity incursion along the Atlantic and Gulf Coasts of the United States (U.S.). A prominent feature of TFFWs is hummock/hollow microtopography where hollows represent the flat, base-elevation of the floodplain where inundation occurs relatively frequently, while hummocks provid
Authors
Ken Krauss, Gregory B. Noe, Jamie A. Duberstein, Nicole Cormier, Andrew From, Tom Doody, William H. Conner, Donald Cahoon, Darren Johnson
Long-term effects of timber harvest on ephemeral pool and occupancy of Spotted Salamanders (Ambystoma maculatum) and Wood Frogs (Lithobates sylvaticus)
The effects of timber harvest on amphibians can be complex and persist for years postharvest, but overall they are poorly understood. We examined how timber harvest has impacted two pool-breeding species, Spotted Salamander (Ambystoma maculatum) and Wood Frog (Lithobates sylvaticus), across the Canaan Valley National Wildlife Refuge, West Virginia, USA. We surveyed Spotted Salamanders and Wood Fro
Authors
Amber NM Wiewel, Adrianne Brand, Evan H. Campbell Grant
Estimating northern spotted owl (Strix occidentalis caurina) pair detection probabilities based on call-back surveys associated with long-term mark-recapture studies, 1993–2018
The northern spotted owl (Strix occidentalis caurina; hereinafter NSO) was listed as “threatened” under the Endangered Species Act in 1990 and population declines have continued since that listing. Given the species’ protected status, any proposed activities on Federal lands that might impact NSO require consultation with U.S. Fish and Wildlife Service and part of that consultation often includes
Authors
Katie M. Dugger, Alan B. Franklin, Damon B. Lesmeister, Raymond J. Davis, J. David Wiens, Gary C. White, James D. Nichols, James E. Hines, Charles B. Yackulic, Carl J. Schwarz, Steven H. Ackers, L. Steven Andrews, Larissa L. Bailey, Robin Bown, Jesse Burgher, Kenneth P. Burnham, Peter C. Carlson, Tara Chestnut, Mary M Conner, Krista E. Dilione, Eric D. Forsman, Scott A. Gremel, Keith A. Hamm, Dale R. Herter, J. Mark Higley, Rob B. Horn, Julianna M Jenkins, William L. Kendall, David W Lamphear, Christopher McCafferty, Trent L. McDonald, Janice A Reid, Jeremy T. Rockweit, David C. Simon, Stan G Sovern, James K. Swingle, Heather Wise
The changing dynamics of highly pathogenic avian influenza H5N1: Next steps for management & science in North America
Highly pathogenic avian influenza virus (HPAIV) H5N1 was introduced in North America in late 2021 through trans-Atlantic pathways via migratory birds. These introductions have resulted in an unprecedented epizootic, a widespread disease event in animals, heavily affecting poultry, wild birds, and recently mammals. The North American incursions occurred during the largest epidemic season (2021–2022
Authors
Johanna Harvey, Jennifer M. Mullinax, Michael C. Runge, Diann Prosser
Potential effects of habitat change on migratory bird movements and avian influenza transmission in the East Asian-Australasian Flyway
Wild waterbirds, and especially wild waterfowl, are considered to be a reservoir for avian influenza viruses, with transmission likely occurring at the agricultural-wildlife interface. In the past few decades, avian influenza has repeatedly emerged in China along the East Asian-Australasian Flyway (EAAF), where extensive habitat conversion has occurred. Rapid environmental changes in the EAAF, esp
Authors
John Takekawa, Diann Prosser, Jeffery D. Sullivan, Shenglai Yin, Xinxin Wang, Geli Zhang, Xiangming Xiao
Inferring pathogen presence when sample misclassification and partial observation occur
Surveillance programmes are essential for detecting emerging pathogens and often rely on molecular methods to make inference about the presence of a target disease agent. However, molecular methods rarely detect target DNA perfectly. For example, molecular pathogen detection methods can result in misclassification (i.e. false positives and false negatives) or partial detection errors (i.e. detecti
Authors
Evan H. Campbell Grant, Riley O. Mummah, Brittany A. Mosher, Jonah Evans, Graziella Vittoria Direnzo
A simplified method for value of information using constructed scales
The value of information is a central concept in decision analysis, used to quantify how much the expected outcome of a decision would be improved if epistemic uncertainty could be resolved prior to committing to a course of action. One of the challenges, however, in quantitative analysis of the value of information is that the calculations are demanding, especially in requiring predictions of out
Authors
Michael C. Runge, Clark S. Rushing, James E. Lyons, Madeleine A. Rubenstein
Observed and projected functional reorganization of riverine fish assemblages from global change
Climate and land-use/land-cover change (‘global change’) are restructuring biodiversity, globally. Broadly, environmental conditions are expected to become warmer, potentially drier (particularly in arid regions), and more anthropogenically developed in the future, with spatiotemporally complex effects on ecological communities. We used functional traits to inform Chesapeake Bay Watershed fish res
Authors
Taylor E Woods, Mary Freeman, Kevin P. Krause, Kelly O. Maloney
Does coat colour influence survival? A test in a cyclic population of snowshoe hares
Some mammal species inhabiting high-latitude biomes have evolved a seasonal moulting pattern that improves camouflage via white coats in winter and brown coats in summer. In many high-latitude and high-altitude areas, the duration and depth of snow cover has been substantially reduced in the last five decades. This reduction in depth and duration of snow cover may create a mismatch between coat co
Authors
Madan K. Oli, Alice J Kenny, Rudy Boonstra, Stan Boutin, Dennis L. Murray, Michael J.L. Peers, B. Scott Gilbert, Thomas S. Jung, Vratika Chaudhary, James E. Hines, Charles J Krebs
Population dynamics and harvest management of eastern mallards
Managing sustainable harvest of wildlife populations requires regular collection of demographic data and robust estimates of demographic parameters. Estimates can then be used to develop a harvest strategy to guide decision-making. Mallards (Anas platyrhynchos) are an important species in the Atlantic Flyway for many users and they exhibited exponential growth in the eastern United States between
Authors
Anthony J. Roberts, Jeffrey A. Hostetler, Joshua C. Stiller, Patrick K. Devers, William Link
Low estradiol production of non-laying whooping cranes (Grus americana) is associated with the failure of small follicles to enter follicular hierarchy
For endangered species managed ex situ, production of offspring is a key factor to ensure healthy and self-sustaining populations. However, current breeding goals for the whooping crane (Grus americana) are impeded by poor reproduction. Our study sought to better understand mechanisms regulating ovarian function in ex situ managed whooping cranes and the regulatory function of the hypothalamic-pit
Authors
Megan E. Brown, Budhan Pukazhenthi, Glenn H. Olsen, Chris Crowe, Warren Lynch, David E Wildt, Nucharin Songsasen