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Integrating hunter dynamics and waterfowl dynamics to inform harvest management Integrating hunter dynamics and waterfowl dynamics to inform harvest management
The successful conservation and management of North American waterfowl relies upon an adaptive harvest management framework that accounts for changes in the system state and critical uncertainties related to the dynamics of waterfowl populations and habitats. Increasing recognition of the importance of the human dimensions of the harvest process, particularly those related to hunters...
Authors
Richard Eugene Waggaman Berl, Patrick K. Devers, G. Scott Boomer, Michael C. Runge
Economic costs of invasive carps in the United States: Case study and management implications Economic costs of invasive carps in the United States: Case study and management implications
Biological invasions can have far-reaching impacts and incur enormous monetary costs. Economic considerations play an important role in management decision-making. We used the invasion of U.S. waterways by silver (Hypophthalmichthys molitrix) and bighead (H. nobilis) carp as a case study of the costs of aquatic invasive species. Although these carps are well-known invaders, published...
Authors
Ellie Brown, Joseph W. Snapp, Christopher Huber, James Caudill, Peter E. Grigelis
Evaluating the performance of multiple precipitation datasets over the transboundary Ili River Basin between China and Kazakhstan Evaluating the performance of multiple precipitation datasets over the transboundary Ili River Basin between China and Kazakhstan
The Ili River Basin is characterized by complex topography and diverse climatic zones with limited in situ observations. This study evaluates the performance of six widely used precipitation datasets, CHIRPS (Climate Hazards Group InfraRed Precipitation with Station data), ERA5_Land (European Centre for Medium-Range Weather Forecasts—ECMWF Reanalysis 5_Land), GPCC (Global Precipitation...
Authors
Baktybek Duisebek, Gabriel B. Senay, Dennis S. Ojima, Tibin Zhang, Janay Sagin, Xuejiao Wang
RAD (Resist-Accept-Direct) switch points and triggers for adaptation planning RAD (Resist-Accept-Direct) switch points and triggers for adaptation planning
Climate change is transforming ecosystems globally. The Resist-Accept-Direct (RAD) framework has gained traction within many natural resource management institutions to help consider the decision space in response to this transformation. Because RAD helps manage for directional change, RAD choices entail considering which RAD pathway to implement and for how long. For example, one may...
Authors
Abigail J. Lynch, Jaime Ashander, Anthony Ciocco, Amanda E. Cravens, Colin J. Dassow, Laura E. Dee, Jason Dunham, Mitchell J. Eaton, Holly Susan Embke, Joseph M. Hennessy, Alexander W. Latzka, David J Lawrence, Jeremy S. Littell, Brian W. Miller, Luca Palasti, Michael C. Runge, Gregory Sass, Aaron D. Shultz, Katherine Siegel, Leona Kay Svancara, Laura Thompson, Lindsey Thurman, Jackson Brear Valler, Sarah R. Weiskopf, Heather M. Yocum
Evapotranspiration terminology and definitions Evapotranspiration terminology and definitions
Evapotranspiration (ET), the combined process of evaporation from soil and plant surfaces and transpiration from plant tissue, plays a pivotal role in the global water and energy balance. Accurately quantifying ET at various spatial scales is important for diverse applications, including irrigation and natural resource management. While efforts to standardize ET methodology have...
Authors
Kendall C. DeJonge, Richard Allen, Ayse Kilic, Kelly R. Thorp, Meetpal Kukal, Gary Marek, Jon Altenhofen, Devendra Amatya, Philip Blankenau, Sumon Datta, Garry Grabow, Ahmed Hashem, Isaya Kisekka, Jeppe Kjaersgaard, Thomas Marek, Troy Peters, Dana Porter, Michelle Reba, Daran Rudnick, Gabriel B. Senay, Vivek Sharma, Venkataramana Sridhar, Ge Sun, Saleh Taghvaeian, Ricardo Trezza, Thomas Trout
Bison population dynamics, harvest, and human conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming Bison population dynamics, harvest, and human conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming
Bison bison were once abundant across North America but declined due to overharvesting in the late 1800s. The reintroduced population in and around Jackson, Wyoming has averaged 485 individuals between 2018–2023 and is the subject of a planning process to inform management strategies that will guide the U.S. Fish and Wildlife’s next “Bison and Elk Management Plan” for the National Elk...
Authors
Jonathan D. Cook, Margaret C. McEachran, Gavin G. Cotterill, Eric K. Cole
Decision analysis in support of the National Elk Refuge bison and elk management plan Decision analysis in support of the National Elk Refuge bison and elk management plan
Preface This report was developed to evaluate the performance of a set of proposed alternatives for Cervus elaphus canadensis (elk) and Bison bison (bison) management at the National Elk Refuge (NER) in Wyoming, U.S.A., and to inform a National Environmental Policy Act Environmental Impact Statement focused on developing the next “Bison and Elk Management Plan” (BEMP). The U.S...
Decision framing overview and performance of management alternatives for bison and elk feedground management at the National Elk Refuge in Jackson, Wyoming Decision framing overview and performance of management alternatives for bison and elk feedground management at the National Elk Refuge in Jackson, Wyoming
This report was developed to evaluate the performance of a set of proposed alternatives for Cervus elaphus canadensis (elk) and Bison bison (bison) management at the National Elk Refuge in Wyoming, U.S.A., and to inform a National Environmental Policy Act Environmental Impact Statement focused on developing the next “Bison and Elk Management Plan” (BEMP). The U.S. Geological Survey...
Authors
Jonathan D. Cook, Gavin G. Cotterill, Margaret C. McEachran, Tabitha A. Graves, Eric K. Cole, Paul C. Cross
Estimating the social and economic consequences of proposed management alternatives at the National Elk Refuge in Jackson, Wyoming Estimating the social and economic consequences of proposed management alternatives at the National Elk Refuge in Jackson, Wyoming
The National Elk Refuge (Refuge) is managed by the U.S. Fish and Wildlife Service and includes habitats for bison and elk. Bison and elk provide opportunities for wildlife-related recreation and contribute to the tourism industry in and around Jackson, Wyoming. Over the last century, the Refuge has provisioned supplemental feed to elk and, more recently, bison during winter months to...
Authors
Margaret C. McEachran, Andrew Don Carlos, Gavin G. Cotterill, Eric K. Cole, Jonathan D. Cook
Evaluating elk distribution and conflict under proposed management alternatives at the National Elk Refuge in Jackson, Wyoming Evaluating elk distribution and conflict under proposed management alternatives at the National Elk Refuge in Jackson, Wyoming
We evaluated measurable attributes describing the current and future distribution of Cervus elaphus canadensis (elk) across a region surrounding Jackson, Wyoming, for five feedground management alternatives proposed by the U.S. Fish and Wildlife Service as a revision to the 2007 “Bison and Elk Management Plan” of the National Elk Refuge. A resource selection function evaluated measurable
Authors
Gavin G. Cotterill, Paul C. Cross, Eric K. Cole, Jonathan D. Cook, Margaret C. McEachran, Tabitha A. Graves
Predictions of elk and chronic wasting disease dynamics at the National Elk Refuge in Jackson, Wyoming, and surrounding areas Predictions of elk and chronic wasting disease dynamics at the National Elk Refuge in Jackson, Wyoming, and surrounding areas
The U.S. Fish and Wildlife Service National Elk Refuge (NER) in Jackson, Wyoming, supplementally feeds Cervus elaphus canadensis (elk) and Bison bison (American bison) during winter months, but the costs and benefits of this management strategy are being reevaluated considering the potential effects of chronic wasting disease (CWD) on elk. U.S. Geological Survey scientists worked with...
Authors
Paul C. Cross, Jonathan D. Cook, Eric K. Cole
Predictions of elk, chronic wasting disease dynamics, and socioeconomics under alternative D at the National Elk Refuge in Jackson, Wyoming, and surrounding areas Predictions of elk, chronic wasting disease dynamics, and socioeconomics under alternative D at the National Elk Refuge in Jackson, Wyoming, and surrounding areas
This chapter presents a description and quantitative evaluation of a collaborative alternative (alternative D) focused on near-term elk population reduction and chronic wasting disease (CWD) monitoring as part of winter elk and bison feedground operations on the National Elk Refuge adjacent to Jackson, Wyoming. Alternative D was developed by the U.S. Fish and Wildlife Service, the lead...
Authors
Jonathan D. Cook, Gavin G. Cotterill, Eric K. Cole, Paul C. Cross