Publications
Explore WARC's science publications.
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Human interactions with sirenians (manatees and dugongs) Human interactions with sirenians (manatees and dugongs)
There are three extant sirenian species of the Trichechidae family and one living Dugongidae family member. Given their close ties to coastal and often urbanized habitats, sirenians are exposed to many types of anthropogenic activities that result in challenges to their well-being, poor health, and even death. In the wild, they are exposed to direct and indirect local pressures as well...
Authors
Robert K. Bonde, Mark Flint
Assessing welfare of individual sirenians in the wild and in captivity Assessing welfare of individual sirenians in the wild and in captivity
Assessing the welfare of wild populations of sirenians has required a “generalist” approach. The outcome has been a subjective decision as to whether what the observers are witnessing in an individual or group of animals is normal and whether that has positive or negative consequences. The understanding of sirenian welfare requirements, and a decision process for whether to support and...
Authors
Mark Flint, Robert K. Bonde
Historical changes in organic matter input to the muddy sediments along the Zhejiang-Fujian Coast, China over the past 160 years Historical changes in organic matter input to the muddy sediments along the Zhejiang-Fujian Coast, China over the past 160 years
The burial of sedimentary organic matter (SOM) in the large river-influenced estuarine-coastal regions is affected by hydrodynamic sorting, diagenesis and human activities. Typically, the inner shelf region of the East China Sea is a major carbon sink of the Yangtze River-derived fine-grained sediments. Most of the previous work concentrated on the studies of surface sediments or used a...
Authors
Li-lei Chen, Jian Liu, Lei Xing, Ken W. Krauss, Jia-sheng Wang, Gang Xu, Li Li
The interacting roles of climate, soils, and plant production on soil microbial communities at a continental scale The interacting roles of climate, soils, and plant production on soil microbial communities at a continental scale
Soil microbial communities control critical ecosystem processes such as decomposition, nutrient cycling, and soil organic matter formation. Continental scale patterns in the composition and functioning of microbial communities are related to climatic, biotic, and edaphic factors such as temperature and precipitation, plant community composition, and soil carbon, nitrogen, and pH...
Authors
Mark P. Waldrop, JoAnn M. Holloway, David B. Smith, Martin B. Goldhaber, R. E. Drenovsky, K. M. Scow, R. Dick, Daniel M. Howard, Bruce K. Wylie, James B. Grace
By
Ecosystems Mission Area, Geology, Energy, and Minerals Mission Area, Ecosystems Land Change Science Program, Energy Resources Program, Land Change Science Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Earth Resources Observation and Science (EROS) Center , Geology, Minerals, Energy, and Geophysics Science Center, Wetland and Aquatic Research Center
Gulf Coast vulnerability assessment: Mangrove, tidal emergent marsh, barrier islands and oyster reef 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 Reece, Blair Tirpak, Cynthia Kallio Edwards, Laura Geselbracht, Mark Woodrey, Megan K. LaPeyre, Patricia (Soupy) Dalyander
Prevalence of Batrachochytrium dendrobatidis and B. salamandrivorans in the Gulf Coast Waterdog, Necturus beyeri, from Southeast Louisiana, USA Prevalence of Batrachochytrium dendrobatidis and B. salamandrivorans in the Gulf Coast Waterdog, Necturus beyeri, from Southeast Louisiana, USA
The globally widespread amphibian fungal pathogen Batrachochytrium dendrobatidis (Bd) has been linked to amphibian declines worldwide (Lips et al. 2006; Skerratt et al. 2007). In Louisiana, USA, Bd has been found in several amphibian species (Chatfield et al. 2012; Rothermel et al. 2008), but to our knowledge no population-level die-offs have been observed. Published literature on Bd...
Authors
Brad M. Glorioso, J. Hardin Waddle, Corinne L. Richards-Zawacki
Global hotspots and correlates of alien species richness across taxonomic groups Global hotspots and correlates of alien species richness across taxonomic groups
Human-mediated transport beyond biogeographic barriers has led to the introduction and establishment of alien species in new regions worldwide. However, we lack a global picture of established alien species richness for multiple taxonomic groups. Here, we assess global patterns and potential drivers of established alien species richness across eight taxonomic groups (amphibians, ants...
Authors
Wayne Dawson, Dietmar Moser, Mark van Kleunen, Holger Kreft, Jan Pergl, Petr Pysek, Patrick Weigelt, Marten Winter, Bernd Lenzner, Tim M. Blackburn, Ellie Dyer, Phillip Cassey, Sally-Louise Scrivens, Evan P. Economo, Benoit Guenard, Cesar Capinha, Hanno Seebens, Pablo Garcia-Diaz, Wolfgang Nentwig, Emili Garcia-Berthou, Christine Casal, Nicholas E. Mandrak, Pam Fuller, Carsten Meyer, Franz Essl
Repeated drought alters resistance of seed bank regeneration in baldcypress swamps of North America Repeated drought alters resistance of seed bank regeneration in baldcypress swamps of North America
Recurring drying and wetting events are likely to increase in frequency and intensity in predicted future droughts in the central USA and alter the regeneration potential of species. We explored the resistance of seed banks to successive droughts in 53 sites across the nine locations in baldcypress swamps in the southeastern USA. Along the Mississippi River Alluvial Valley and northern...
Authors
Ting Lei, Beth A. Middleton
Quantifying drivers of wild pig movement across multiple spatial and temporal scales Quantifying drivers of wild pig movement across multiple spatial and temporal scales
Background The movement behavior of an animal is determined by extrinsic and intrinsic factors that operate at multiple spatio-temporal scales, yet much of our knowledge of animal movement comes from studies that examine only one or two scales concurrently. Understanding the drivers of animal movement across multiple scales is crucial for understanding the fundamentals of movement...
Authors
Shannon L. Kay, Justin W. Fischer, Andrew J. Monaghan, James C Beasley, Raoul Boughton, Tyler A Campbell, Susan M Cooper, Stephen S. Ditchkoff, Stephen B. Hartley, John C Kilgo, Samantha M Wisely, A Christy Wyckoff, Kurt C. Vercauteren, Kim M Pipen
Response of bird community structure to habitat management in piñon-juniper woodland-sagebrush ecotones Response of bird community structure to habitat management in piñon-juniper woodland-sagebrush ecotones
Piñon (Pinus spp.) and juniper (Juniperus spp.) woodlands have been expanding their range across the intermountain western United States into landscapes dominated by sagebrush (Artemisia spp.) shrublands. Management actions using prescribed fire and mechanical cutting to reduce woodland cover and control expansion provided opportunities to understand how environmental structure and...
Authors
Steven T. Knick, Steve E. Hanser, James B. Grace, Jeff P. Hollenbeck, Matthias Leu
Performance measures for a Mississippi River reintroduction into the forested wetlands of Maurepas Swamp Performance measures for a Mississippi River reintroduction into the forested wetlands of Maurepas Swamp
The use of freshwater diversions (river reintroductions) from the Mississippi River as a restoration tool to rehabilitate Louisiana coastal wetlands has been promoted widely since the first such diversion at Caernarvon became operational in the early 1990s. To date, aside from the Bonnet Carré Spillway (which is designed and operated for flood control), there are only four operational...
Authors
Ken W. Krauss, Gary P. Shaffer, Richard F. Keim, Jim L. Chambers, William B. Wood, Stephen B. Hartley
Songbirds are resilient to hurricane disturbed habitats during spring migration Songbirds are resilient to hurricane disturbed habitats during spring migration
The Gulf of Mexico is a conspicuous feature of the Neotropical–Nearctic bird migration system. Traveling long distances across ecological barriers comes with considerable risks, and mortality associated with intercontinental migration may be substantial, including that caused by storms or other adverse weather events. However, little, if anything, is known about how migratory birds...
Authors
Emily Lain, Theodore J. Zenzal, Frank R. Moore, Wylie C. Barrow, Robert H. Diehl