All Publications
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Is now the time? Review of genetic rescue as a conservation tool for brook trout
Brook trout populations have been declining throughout their native range in the east coast of the United States. Many populations are now distributed in small, isolated habitat patches where low genetic diversity and high rates of inbreeding reduce contemporary viability and long-term adaptive potential. Although human-assisted gene flow could theoretically improve conservation outcomes through g
Authors
Shannon L. White, Jacob M Rash, David C. Kazyak
The truth is in the stream: Use of tracer techniques and synoptic sampling to evaluate metal loading and remedial options in a hydrologically complex setting
Two synoptic sampling campaigns were conducted to quantify metal loading to Illinois Gulch, a
small stream affected by historical mining activities. The first campaign was designed to
determine the degree to which Illinois Gulch loses water to the underlying mine workings, and to
determine the effect of these losses on observed metal loads. The second campaign was designed to evaluate metal loadin
Authors
Robert L. Runkel, Philip Verplanck, Katherine Walton-Day, R. Blaine McCleskey, Patrick Byrne
Application of habitat association models across regions: Useful explanatory power retained in wetland bird case study
Species often exhibit regionally specific habitat associations, so habitat association models developed in one region might not be accurate or even appropriate for other regions. Three programs to survey wetland-breeding birds covering (respectively) Great Lakes coastal wetlands, inland Great Lakes wetlands, and the Prairie Pothole Region offer an opportunity to test whether regionally specific mo
Authors
Lisa H. Elliott, Annie M. Bracey, Gerald J. Niemi, Douglas H. Johnson, Thomas M. Gehring, Erin E. Gnass Giese, Giuseppe E. Fiorino, Robert W. Howe, Gregory J. Lawrence, Christopher J. Norment, Douglas C. Tozer, Lawrence Igl
Introduction to the digitization of seismic data: A user’s guide
Modern seismic data are collected, distributed, and analyzed using digital formats, and this has become a standard for the field. Although most modern seismometers still make use of analog electronic circuits, their data are converted from an analog voltage output to time‐tagged counts by way of digitization. Although much of the digitization process is not complicated to conceptualize, there is a
Authors
Adam T. Ringler, Robert E. Anthony, Patrick Bastien, Adam Pascale, Bion J. Merchant
Gene expression and wildlife health: Varied interpretations based on perspective
We evaluated wildlife population health from the perspective of statistical means vs. variances. We outlined the choices necessary to provide the framework for our study. These consisted of spatial and temporal boundaries (e.g., choice of sentinel species, populations, time frame), measurement techniques (molecular to population level), and appropriate statistical analyses. We chose to assess the
Authors
Lizabeth Bowen, Julie L. Yee, James L. Bodkin, Shannon C. Waters, Michael J. Murray, Heather Coletti, Brenda E. Ballachey, Daniel Monson, A. Keith Miles
Recognizing political influences in participatory social-ecological systems modeling
Stakeholder participation in social-ecological systems (SES) modeling is increasingly considered a desirable way to elicit diverse sources of knowledge about SES behavior and to promote inclusive decision-making in SES. Understanding how participatory modeling processes function in the context of long-term adaptive management of SES may allow for better design of participatory processes to achieve
Authors
Theodore C. Lim, Pierre D. Glynn, Gary W. Shenk, Patrick Bitterman, Joseph H. A. Guillaume, John Little, D. G. Webster
Sensitivity of the Penman-Monteith reference evapotranspiration equation to meteorological variables for Puerto Rico
Spatiotemporal variations in reference evapotranspiration (ETo) are sensitive to the meteorological data used in its estimation. The sensitivity of the ASCE standardized ETo equation to meteorological variables from GOES-PRWEB dataset was evaluated for the island of Puerto Rico. Island wide, ETo is most sensitive to daily mean relative humidity (RHmean), followed by solar radiation, daily maximum
Authors
Michelle M. Irizarry-Ortiz, Eric Harmsen
Assessing individual movement, habitat use, and behavior of non-breeding marine birds in relation to prey availability in the US Atlantic
Resource availability is a key factor driving marine bird movements and distributions, but direct information on prey availability is difficult to obtain at relevant scales. We present novel methods for describing multi-scale trophic associations, combining movement analyses of marine birds with estimates of forage fish surface aggregations from digital aerial survey data and species occupancy fro
Authors
Julia Gulka, Alicia Berlin, Kevin Friedland, Andrew Gilbert, Chandra Goetsch, William Montevecchi, Matthew Perry, Iain Stenhouse, Kate A. Williams, Evan A. Adams
ECCOE Landsat quarterly Calibration and Validation report—Quarter 4, 2022
Executive SummaryThe U.S. Geological Survey Earth Resources Observation and Science Calibration and Validation (Cal/Val) Center of Excellence (ECCOE) focuses on improving the accuracy, precision, calibration, and product quality of remote-sensing data, leveraging years of multiscale optical system geometric and radiometric calibration and characterization experience. The ECCOE Landsat Cal/Val Team
Authors
Md Obaidul Haque, Rajagopalan Rengarajan, Mark Lubke, Md Nahid Hasan, Ashish Shrestha, Fatima Tuz Zafrin Tuli, Jerad L. Shaw, Alex Denevan, Shannon Franks, Esad Micijevic, Michael J. Choate, Cody Anderson, Kurt Thome, Ed Kaita, Julia Barsi, Raviv Levy, Jeff Miller
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
Paleohydrologic history of pluvial lake San Agustin, New Mexico: Tracking changing effective moisture in southwest North America through the last glacial transition
Paleoclimate records across the Intermountain West region of North America show significant regional variation in timing and magnitude of wet conditions that accompanied the last glacial-interglacial transition. To understand the climate controls on paleohydrologic change, well-dated records are needed across the region. The Plains of San Agustin (New Mexico, USA) is a closed-basin watershed of th
Authors
Adam M. Hudson, Jay Quade, Vance T. Holliday, Brendan Fenerty, Jordon Bright, Harrison J. Gray, Shannon A. Mahan
Methods and lessons for business resilience and recovery surveys
Surveys are important tools in business resilience and recovery research because of their ability to capture disaggregated economic information; however, they can be difficult and costly due to business operational dynamics and the larger challenges of disaster research. The COVID-19 pandemic serves as a recent example where demand for business data was high across both research and practice. Yet,
Authors
Maria Watson, Charlotte Brown, John Handmer, Cynthia Kroll, Anne Wein, Jennifer Helgeson, Adam Rose, Noah Dormady, Juri Kim