Publications
Explore WARC's science publications.
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Limpkin, Aramus guarauna (L., 1766) (Gruiformes, Aramidae), extralimital breeding in Louisiana is associated with availability of the invasive Giant Apple Snail, Pomacea maculata Perry, 1810 (Caenogastropoda, Ampullariidae) Limpkin, Aramus guarauna (L., 1766) (Gruiformes, Aramidae), extralimital breeding in Louisiana is associated with availability of the invasive Giant Apple Snail, Pomacea maculata Perry, 1810 (Caenogastropoda, Ampullariidae)
We document the first breeding record of Limpkin, Aramus guarauna (Linnaeus, 1766) (Gruiformes, Aramidae), for Louisiana, describe an additional unpublished breeding record from Georgia, as well as a possible record from Alabama, and associate these patterns with the concurrent establishment of the invasive Giant Apple Snail, Pomacea maculata Perry, 1810 (Caenogastropoda, Ampullariidae)...
Authors
Robert C. Dobbs, Jacoby Carter, Jessica L. Schulz
Adaptive harvest management for the Svalbard population of pink‐footed geese: 2019 progress summary Adaptive harvest management for the Svalbard population of pink‐footed geese: 2019 progress summary
This report describes an Adaptive Harvest Management (AHM) program designed to maintain the Svalbard population of Pink-footed Geese (Anser brachyrhynchus) near their target level (60,000) by providing sustainable harvests in Norway and Denmark. Specifically, this report provides recent monitoring and assessment results and their implications for the 2019 hunting season. In this report...
Authors
Fred Johnson, Henning Heldbjerg, Kevin K. Clausen, Jesper Madsen
USGS combats invasive species through citizen science USGS combats invasive species through citizen science
No abstract available.
Authors
Wesley Daniel
Seeking shelter from the storm: Conservation and management of imperiled species in a changing climate Seeking shelter from the storm: Conservation and management of imperiled species in a changing climate
Climate change is anticipated to exacerbate the extinction risk of species whose persistence is already compromised by habitat loss, invasive species, disease, or other stressors. In coastal areas of the southeastern United States (USA), many imperiled vertebrates are vulnerable to hurricanes, which climate models predict to become more severe in the 21st century. Despite this escalating...
Authors
Susan Walls, William Barichivich, Jonathan Chandler, Ashley M. Meade, Marysa Milinichik, Katherine O'Donnell, Megan E. Owens, Terry Peacock, Joseph Reinman, Rebecca C. Watling, Olivia E. Wetsch
Impacts of saltwater intrusion on wetland prey production and composition in a historically freshwater marsh Impacts of saltwater intrusion on wetland prey production and composition in a historically freshwater marsh
Sea level rise is a fundamental driver of ecosystem change and has the potential to shift the spatial distributions of habitats more rapidly than species can adapt. Rapid sea level rise and associated saltwater intrusion have negative impacts on coastal environments, including loss of habitat for species such as sea turtles and shorebirds. In Florida’s largest wetland, the Everglades...
Authors
Stephanie Romanach, James M. Beerens, Brett Patton, Julia P. Chapman, Matt Hanson
Negative frequency-dependent foraging behaviour in a generalist herbivore (Alces alces) and its stabilizing influence on food-web dynamics Negative frequency-dependent foraging behaviour in a generalist herbivore (Alces alces) and its stabilizing influence on food-web dynamics
1. Resource selection is widely appreciated to be context‐dependent and shaped by both biological and abiotic factors. However, few studies have empirically assessed the extent to which selective foraging behaviour is dynamic and varies in response to environmental conditions for free‐ranging animal populations. 2. Here, we assessed the extent that forage selection fluctuated in response...
Authors
Sarah R. Hoy, John A. Vucetich, Rongsong Liu, Don DeAngelis, Rolf O. Peterson, Leah M. Vucetich, John J. Henderson
Linking management planning for coastal wetlands to potential future wave attenuation under a range of relative sea-level rise scenarios Linking management planning for coastal wetlands to potential future wave attenuation under a range of relative sea-level rise scenarios
Understanding changes in wave attenuation by emergent vegetation as wetlands degrade or accrete over time is crucial for incorporation of wetlands into holistic coastal risk management. Linked SLAMM and XBeach models were used to investigate potential future changes in wave attenuation over a 50-year period in a degrading, subtropical wetland and a prograding, temperate wetland. These...
Authors
Ann Hijuelos, Jasper Dijkstra, Tim J. B. Carruthers, Karel Heynert, Denise Reed, Bregje van Wesenbeeck
Monitoring live vegetation in semiarid and arid rangeland environments with satellite remote sensing in northern Kenya Monitoring live vegetation in semiarid and arid rangeland environments with satellite remote sensing in northern Kenya
As part of the U.S. Department of the Interior’s (DOI) commitment to provide technical assistance to the Kenyan Northern Rangelands Trust (NRT), the U.S. Geological Survey, in collaboration with the DOI International Technical Assistance Program and the U.S. Agency for International Development’s regional mission in East Africa, created a high spatial and time-sensitive live vegetation...
Authors
Amina Rangoonwala, Elijah W. Ramsey III
Eradication of two non-native cichlid fishes in Miami, Florida (USA) Eradication of two non-native cichlid fishes in Miami, Florida (USA)
The proliferation of non-native fishes in Florida is a serious problem, and new species continue to be introduced to the state. Fishes in the Family Cichlidae have been especially successful colonizers of south Florida freshwater habitats. Herein we report a multi-agency effort to eradicate two non-native cichlid fishes in Miami, Florida (Bay Snook Petenia splendida and Blue Mbuna...
Authors
Pamela J. Schofield, Howard L. Jelks, Kelly B. Gestring
Global patterns of tree stem growth and stand aboveground wood production in mangrove forests Global patterns of tree stem growth and stand aboveground wood production in mangrove forests
Mangrove forests provide important ecological and economic services including carbon sequestration and storage. The conservation and restoration of mangroves are expected to play an important role in mitigating climate change, and understanding the factors influencing mangrove stem growth and wood production are important in predicting and improving mangrove carbon sequestration and...
Authors
Yanmei Xiong, Roxelane Cakir, Sang Minh Phan, Anne Ola, Ken Krauss, Catherine E. Lovelock
Jump-starting coastal wetland restoration: A comparison of marsh and mangrove foundation species Jump-starting coastal wetland restoration: A comparison of marsh and mangrove foundation species
During coastal wetland restoration, foundation plant species play a critical role in creating habitat, modulating ecosystem functions, and supporting ecological communities. Following initial hydrologic restoration, foundation plant species can help stabilize sediments and jump-start ecosystem development. Different foundation species, however, have different traits and environmental...
Authors
Erik S. Yando, Michael Osland, Scott Jones, Mark W. Hester
Success of lake restoration depends on spatial aspects of nutrient loading and hydrology Success of lake restoration depends on spatial aspects of nutrient loading and hydrology
Many aquatic ecosystems have deteriorated due to human activities and their restoration is often troublesome. It is proposed here that the restoration success of deteriorated lakes critically depends on hitherto largely neglected spatial heterogeneity in nutrient loading and hydrology. A modelling approach is used to study this hypothesis by considering four lake types with contrasting...
Authors
Annette B. G. Janssen, Dianneke van Wijk, Luuk P.A. van Gerven, Elisabeth S. Bakker, Robert J. Brederveld, Donald L. DeAngelis, Jan H. Janse, Wolf M. Mooij