Publications
Explore WARC's science publications.
Filter Total Items: 3544
Determining origin in a migratory marine vertebrate: a novel method to integrate stable isotopes and satellite tracking Determining origin in a migratory marine vertebrate: a novel method to integrate stable isotopes and satellite tracking
Stable isotope analysis is a useful tool to track animal movements in both terrestrial and marine environments. These intrinsic markers are assimilated through the diet and may exhibit spatial gradients as a result of biogeochemical processes at the base of the food web. In the marine environment, maps to predict the spatial distribution of stable isotopes are limited, and thus...
Authors
Hannah B. Vander Zanden, Anton D. Tucker, Kristen M. Hart, Margaret M. Lamont, Ikuko Fujisaki, David S. Addison, Katherine L. Mansfield, Katrina F. Phillips, Michael B. Wunder, Gabriel J. Bowen, Mariela Pajuelo, Alan B. Bolten, Karen A. Bjorndal
Towards sustainable management of huntable migratory waterbirds in Europe Towards sustainable management of huntable migratory waterbirds in Europe
The EU Birds Directive and the African-Eurasian Waterbird Agreement provide an adequate legal framework for sustainable management of migratory waterbird populations. The main shortcoming of both instruments is that it leaves harvest decisions of a shared resource to individual Member States and Contracting Parties without providing a shared information base and mechanism to assess the...
Authors
Jesper Madsen, Matthieu Guillemain, Szabolcs Nagy, Pierre Defos du Rau, Jean-Yves Mondain-Monval, Cy Griffin, James Henty Williams, Nils Bunnefeld, Alexandre Czajkowski, Richard Hearn, Andreas Grauer, Mikko Alhainen, Angus Middleton, Fred A. Johnson
A spatial individual-based model predicting a great impact of copious sugar sources and resting sites on survival of Anopheles gambiae and malaria parasite transmission A spatial individual-based model predicting a great impact of copious sugar sources and resting sites on survival of Anopheles gambiae and malaria parasite transmission
Background
Authors
Lin Zhu, Whitney A. Qualls, John M Marshall, Kris L. Arheart, Donald L. DeAngelis, John W. McManus, Sekou F. Traore, Seydou Doumbia, Yosef Schlein, Gunter C. Muller, John C. Beier
Optimization and resilience in natural resources management Optimization and resilience in natural resources management
We consider the putative tradeoff between optimization and resilience in the management of natural resources, using a framework that incorporates different sources of uncertainty that are common in natural resources management. We address one-time decisions, and then expand the decision context to the more complex problem of iterative decision making. For both cases we focus on two key...
Authors
Byron K. Williams, Fred A. Johnson
A decision-analytic approach to adaptive resource management A decision-analytic approach to adaptive resource management
No abstract available.
Authors
Fred A. Johnson, Byron K. Williams
Mekong River fish ecology information gap assessment and capacity building in Laos Mekong River fish ecology information gap assessment and capacity building in Laos
No abstract available
Authors
Stephen J. Walsh, Douglas C. Peterson, Kulthida A Techasarin
Population connectivity of deep-sea corals Population connectivity of deep-sea corals
Identifying the scale of dispersal among habitats has been a challenge in marine ecology for decades (Grantham et al., 2003; Kinlan & Gaines, 2003; Hixon, 2011). Unlike terrestrial habitats in which barriers to dispersal may be obvious (e.g. mountain ranges, rivers), few absolute barriers to dispersal are recognizable in the sea. Additionally, most marine species have complex life cycles...
Authors
Cheryl L. Morrison, Amy Baco, Martha S. Nizinski, D. Katharine Coykendall, Amanda W.J. Demopoulos, Walter Cho, Tim Shank
Assessing stand water use in four coastal wetland forests using sapflow techniques: annual estimates, errors and associated uncertainties Assessing stand water use in four coastal wetland forests using sapflow techniques: annual estimates, errors and associated uncertainties
Forests comprise approximately 37% of the terrestrial land surface and influence global water cycling. However, very little attention has been directed towards understanding environmental impacts on stand water use (S) or in identifying rates of S from specific forested wetlands. Here, we use sapflow techniques to address two separate but linked objectives: (1) determine S in four...
Authors
Ken W. Krauss, Jamie A. Duberstein, William H. Conner
The Gulf Coast Vulnerability Assessment: Mangrove, Tidal Emergent Marsh, Barrier Islands, and Oyster Reef The Gulf Coast Vulnerability Assessment: Mangrove, Tidal Emergent Marsh, Barrier Islands, and Oyster Reef
Climate, sea level rise, and urbanization are undergoing unprecedented levels of combined change and are expected to have large effects on natural resources—particularly along the Gulf of Mexico coastline (Gulf Coast). Management decisions to address these effects (i.e., adaptation) require an understanding of the relative vulnerability of various resources to these stressors. To meet...
Authors
Amanda Watson, Joshua S. Reece, Blair Tirpak, Cynthia Kallio Edwards, Laura Geselbracht, Mark Woodrey, Megan K. LaPeyre, P. Soupy Dalyander
Dynamic reserve design in the face of climate change and urbanization Dynamic reserve design in the face of climate change and urbanization
Reserve design is a process that must address many ecological, social, and political factors to successfully identify parcels of land in need of protection to sustain wildlife populations and other natural resources. Making land acquisition choices for a large, terrestrial protected area is difficult because it occurs over a long timeframe and may involve consideration future conditions...
Authors
Stephanie S. Romanach, Fred A. Johnson, Bradley Stith, Mathieu Bonneau
Climate changes, shifting ranges Climate changes, shifting ranges
Even a fleeting mention of the Everglades conjures colorful images of alligators, panthers, flamingos, and manatees. Over the centuries, this familiar cast of characters has become synonymous with life in south Florida. But the workings of a changing climate have the potential to significantly alter the menagerie of animals that call this area home. Global projections suggest south...
Authors
Stephanie S. Romanach
Structured decision making for management of warm-water habitat for manatees. Final report to U.S. Fish and Wildlife Service Structured decision making for management of warm-water habitat for manatees. Final report to U.S. Fish and Wildlife Service
No abstract available.
Authors
Michael Kosempa, Julien Martin, Fred A. Johnson, Ron Mezich, Brad Stith, Charles J. Deutsch, Michelle Masi, Holly H. Edwards