Publications
Explore WARC's science publications.
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Environmental DNA assays for invasive populations of the Black Carp, Mylopharyngodon piceus, in North America Environmental DNA assays for invasive populations of the Black Carp, Mylopharyngodon piceus, in North America
The Black Carp, Mylopharyngodon piceus, is an increasingly widespread invasive species in North America that threatens freshwater mussel populations. We developed four qPCR assays for detecting environmental DNA (eDNA) from these Black Carp populations. Assays were designed to target four mitochondrial DNA loci and were based on 34 complete mitochondrial genome sequences, including 29...
Authors
Xin Guan, E.M. Monroe, K.D. Bockrath, Erica L. Mize, C.B. Rees, Denise L. Lindsay, Kelly L. Baerwaldt, Leo Nico, Richard F. Lance
Integrative taxonomy reveals a new species of freshwater mussel, Potamilus streckersoni sp. nov. (Bivalvia: Unionidae): Implications for conservation and management Integrative taxonomy reveals a new species of freshwater mussel, Potamilus streckersoni sp. nov. (Bivalvia: Unionidae): Implications for conservation and management
Inaccurate systematics confound our ability to determine evolutionary processes that have led to the diversification of many taxa. The North American freshwater mussel tribe Lampsilini is one of the better-studied groups in Unionidae, however, many supraspecific relationships between lampsiline genera remain unresolved. Two genera previously hypothesized to be non-monophyletic that have...
Authors
Chase H. Smith, Nathan Johnson, Kentaro Inoue, Robert Doyle, Charles R. Randklev
A comprehensive approach uncovers hidden diversity in freshwater mussels (Bivalvia: Unionidae) with the description of a novel species A comprehensive approach uncovers hidden diversity in freshwater mussels (Bivalvia: Unionidae) with the description of a novel species
Major geological processes have shaped biogeographical patterns of riverine biota. The Edwards Plateau of central Texas, USA, exhibits unique aquatic communities and endemism, including several species of freshwater mussels. Lampsilis bracteata (Gould, 1855) is endemic to the Edwards Plateau region; however, its phylogenetic relationship with other species in the Gulf coastal rivers and
Authors
Kentaro Inoue, John L. Harris, Clint Robertson, Nathan Johnson, Charles R. Randklev
Perspective: Developing flow policies to balance the water needs of humans and wetlands requires a landscape scale approach inclusive of future scenarios and multiple timescales Perspective: Developing flow policies to balance the water needs of humans and wetlands requires a landscape scale approach inclusive of future scenarios and multiple timescales
Maintenance of the natural flow regime is essential for continued wetland integrity; however, the flow regime is greatly influenced by both natural and anthropogenic forces. Wetlands may be particularly susceptible to altered flow regimes as they are directly impacted by water flows at a variety of time scales. In Puerto Rico, contemporary water management is decreasing freshwater...
Authors
Brent Murry, Jared Bowden, Benjamin Branoff, Miguel Garcia-Bermudez, Beth Middleton, Jorge Ortiz-Zayas, Carla Restrepo, Adam J. Terando
Channel modification and evolution alter hydraulic connectivity in the Atchafalaya River basin increasing vulnerability to sea-level rise Channel modification and evolution alter hydraulic connectivity in the Atchafalaya River basin increasing vulnerability to sea-level rise
Channel dredging and erosion in the Atchafalaya River basin have resulted in changes to the hydraulic connectivity of this floodplain swamp that have not been previously quantified. In this study, analyses were conducted to determine hydraulic and geomorphic factors that have changed since channel closure in 1962. Results indicated changes occurred in the Atchafalaya main channel cross...
Authors
Daniel Kroes, Richard H. Day, Charles R. Demas, Yvonne C. Allen, Steve Roberts
Council Monitoring and Assessment Program (CMAP): Inventory of existing water quality and habitat monitoring, and mapping metadata for Gulf of Mexico Programs Council Monitoring and Assessment Program (CMAP): Inventory of existing water quality and habitat monitoring, and mapping metadata for Gulf of Mexico Programs
Under the Council-Selected Restoration Component of the RESTORE Act, the Council develops Funded Priority Lists (FPLs) that describe the projects and programs it will fund. Projects and programs funded through this component must be in furtherance of the goals and objectives of the Council’s Comprehensive Plan and address at least one of the restoration criteria identified in the RESTORE...
Authors
Julie Bosch, Heidi Burkart, Bogdan Chivoiu, Randy Clark, Chris Clement, Nicholas Enwright, Steve Giordano, Chris Jeffrey, Edward Johnson, Rheannon M. Hart, Sarah Hile, Jacob Howell, Claudia Laurenzano, Michael T. Lee, Terrence A. McCloskey, Terry McTigue, Michelle B. Meyers, Scott Mize, Mark E. Monaco, Kevin Owen, Richard A. Rebich, Samuel H. Rendon, Ali Robertson, Thomas Sample, Gregory D. Steyer, Kevin J. Suir, Christopher M. Swarzenski, Katie Watson
Climate change adaptation for coastal national wildlife refuges Climate change adaptation for coastal national wildlife refuges
National Wildlife Refuges (NWRs) along the East Coast of the United States protect habitat for a host of wildlife species, while also offering storm surge protection, improving water quality, supporting nurseries for commercially important fish and shellfish, and providing recreation opportunities for coastal communities. Yet in the last century, coastal ecosystems in the eastern U.S...
Authors
Mitchell J. Eaton, Jennifer K. Costanza, Fred A Johnson, Julien Martin, Laura Taylor
Harvest assessment for Taiga bean geese in the Central Management Unit: 2019 Harvest assessment for Taiga bean geese in the Central Management Unit: 2019
In 2016 the European Goose Management International Working Group (EGM IWG) began development of an Adaptive Harvest Management (AHM) program for Taiga Bean Geese. In 2017, the IWG adopted an Interim Harvest Strategy consisting of a constant harvest rate (on adults) of 3% for the Central Management Unit (MU) of Taiga Bean Geese. The interim strategy is intended to provide limited hunting
Authors
Fred Johnson, Henning Heldbjerg, Mikko Alhainen, Jesper Madsen
Spatial conservation planning under uncertainty: Adapting to climate change risks using modern portfolio theory Spatial conservation planning under uncertainty: Adapting to climate change risks using modern portfolio theory
Climate change and urban growth impact habitats, species, and ecosystem services. To buffer against global change, an established adaptation strategy is designing protected areas to increase representation and complementarity of biodiversity features. Uncertainty regarding the scale and magnitude of landscape change complicates reserve planning and exposes decision makers to risk of...
Authors
Mitchell J. Eaton, Simeon Yurek, Zulqarnain Haider, Julien Martin, Fred Johnson, Bradley Udell, Hadi Charkhgard, Changhyun Kwon
Integrating behavior and physiology into strategies for amphibian conservation Integrating behavior and physiology into strategies for amphibian conservation
The amphibian decline crisis has been challenging to address because of the complexity of factors—and their multitude of interactive effects—that drive this global issue. Dissecting such complexity could benefit from strategies that integrate multiple disciplines and address the mechanistic underpinnings of population declines and extirpations. We examine how the disciplines of behavior...
Authors
Susan Walls, Caitlin R Gabor
Establishing genome sizes of focal fishery and aquaculture species along Baja California, Mexico Establishing genome sizes of focal fishery and aquaculture species along Baja California, Mexico
Genome size—the total haploid content of nuclear DNA— is constant in all cells in individuals within a species, but differs among species. Consequently, the genome size is a quantifiable genetic signature that not only characterizes a species, but it can reflect chromatin modifications, which play fundamental roles in most biological processes that are involved in the manipulation and...
Authors
Constanza del Mar Ochoa-Saloma, Jill A. Jenkins, Manuel A. Segovia, Miguel A. Del Rio-Portilla, Carmen G. Paniagua-Chavez
Carbon dioxide emissions and methane flux from forested wetland soils of the Great Dismal Swamp, USA Carbon dioxide emissions and methane flux from forested wetland soils of the Great Dismal Swamp, USA
The Great Dismal Swamp, a freshwater forested peatland, has accumulated massive amounts of soil carbon since the postglacial period. Logging and draining have severely altered the hydrology and forest composition, leading to drier soils, accelerated oxidation, and vulnerability to disturbance. The once dominant Atlantic white cedar, cypress, and pocosin forest types are now fragmented...
Authors
Laurel Gutenberg, K. W. Krauss, John Qu, Changwoo Ahn, Dianna M. Hogan, Zhiliang Zhu, Chenyang Xu