Wetland and Aquatic Research Center

Publications

Explore WARC's science publications.

Filter Total Items: 2,489
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Year Published: 2019

Examination of Bathymodiolus childressi nutritional sources, isotopic niches, and food-web linkages at two seeps in the US Atlantic margin using stable isotope analysis and mixing models

Chemosynthetic environments support distinct benthic communities capable of utilizing reduced chemical compounds for nutrition. Hundreds of methane seeps have been documented along the U.S. Atlantic margin (USAM), and detailed investigations at a few seeps have revealed distinct environments containing mussels, ...

Demopoulos, Amanda; McClain Counts, Jennifer; Bourque, Jill; Prouty, Nancy; Smith, Brian; Brooke, Sandra; Ross, Steve W.; Ruppel, Carolyn

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Year Published: 2019

The effects of geography, habitat, and humans on the ecology and demography of the Gopher tortoise (Gopherus polyphemus) in the southern Lake Wales Ridge region of Florida

A 35-year (1967–2002) demographic study was conducted on the gopher tortoise (Gopherus polyphemus) from two different habitats on Archbold Biological Station located on the southern end of the Lake Wales Ridge in south-central Florida. We found geographic, habitat, and human-mediated effects on several aspects of its biology. Our findings...

Meshaka, Walter E.; Layne, James N.; Rice, Kenneth G.

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Year Published: 2019

The circumtropical swarm population of the longspined porcupinefish (Diodon holocanthus Linnaeus)

Evidence is presented that Diodon holocanthus is a circumtropical swarm (not a hybrid swarm because the individuals are not hybrids). Some individuals are so differentfrom one another in both color and morphology that they appear to be different species. Thirty undersea and aquarium photographs from different global localities are...

Randall, John E; Rogers, Caroline; Ogden, John C

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Year Published: 2019

Advancing barrier island habitat mapping using landscape position information

Barrier islands are dynamic ecosystems that change gradually from coastal processes, including currents and tides, and rapidly from episodic events, such as storms. These islands provide many important ecosystem services, including storm protection and erosion control to the mainland, habitat for fish and wildlife, and tourism. Habitat maps,...

Enwright, Nicholas; Wang, Lei; Borchert, Sinéad M.; Day, Richard; Feher, Laura; Osland, Michael
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Year Published: 2019

Environmental DNA sampling reveals high occupancy rates of invasive Burmese pythons at wading bird breeding aggregations in the central Everglades

The Burmese python (Python bivittatus) is now established as a breeding population throughout south Florida, USA. However, the extent of the invasion, and the ecological impacts of this novel apex predator on animal communities are incompletely known, in large part because Burmese pythons (hereafter “pythons”) are extremely cryptic and there has...

Orzechowski, Sophia C. M.; Frederick, Peter C.; Dorazio, Robert M.; Hunter, Margaret

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Year Published: 2019

Regional protocol framework for the inventory and monitoring of breeding Atlantic Coast Piping Plovers

This regional protocol provides a framework for quantifying the number of breeding pairs and productivity of Atlantic Coast piping plover (Charadrius melodus) populations during the breeding season. A primary purpose of this protocol is to standardize piping plover monitoring during the breeding season. The survey techniques...

King, Erin; Katz, Rachel A.; Iaquinto, Kate E.; Suir, Kevin J.; Baldwin, M.J.; Hecht, A.

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Year Published: 2019

Potential sea level rise for the Chitimacha Tribe of Louisiana

Situated in the Mississippi Alluvial Plain of the Gulf Coast Prairie Landscape Conservation Cooperative (GCP LCC), the Chitimacha Tribe is one of four federally recognized tribes in Louisiana. The Tribal seat, trust lands/ reservation, and adjacent Tribal owned lands are located near Charenton, Louisiana, totaling nearly 1,000 acres. The...

Spear, Kathryn A.; Jones, William; Griffith, Kereen; Tirpak, Blair E.; Walden, Kimberly
Spear, K.A., Jones, W., Griffith, K., Tirpak, B.E., and Walden, K., 2019, Potential sea level rise on Chitimacha Tribal Lands in Louisiana: U.S. Geological Survey Open-File Report 2019–1030, 1 sheet, https://doi.org/10.3133/ofr20191030.

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Year Published: 2019

Restoration affects sexual reproductive capacity in a salt marsh

Plant sexual reproduction is an important driver of plant community maintenance, dispersal, and recovery from disturbance. Despite this, sexual reproduction in habitats dominated by clonally spreading perennial species, such as salt marshes, is often ignored. Communities dominated by long-lived perennial species can still depend on sexual...

Jones, Scott F; Yando, Erik S.; Stagg, Camille; Hall, Courtney T.; Hester, Mark W.

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Year Published: 2019

Improving eDNA yield and inhibitor reduction through increased water volumes and multi-filter isolation techniques

To inform management and conservation decisions, environmental DNA (eDNA) methods are used to detect genetic material shed into the water by imperiled and invasive species. Methodological enhancements are needed to reduce filter clogging, PCR inhibition, and false-negative detections when eDNA is at low concentrations. In the first of three simple...

Hunter, Margaret; Ferrante, Jason; Meigs-Friend, Gaia; Ulmer, Amelia

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Year Published: 2019

Interactive mapping of nonindigenous species in the Laurentian Great Lakes

Nonindigenous species pose significant risks to the health and integrity of ecosystems around the world. Tracking and communicating the spread of these species has been of interest to ecologists and environmental managers for many years, particularly in the bi-national Laurentian Great Lakes of North America. In this paper, we introduce the Great...

Smith, Joseph P.; Lower, El K.; Martinez, Felix A.; Riseng, Catherine M.; Mason, Lacey A.; Rutherford, Edward S.; Neilson, Matthew E.; Fuller, Pam; Wehrly, Kevin E.; Sturtevant, Rochelle A.

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Year Published: 2019

Multi-species duck harvesting using dynamic programming and multi-criteria decision analysis

1.Multiple species are often exposed to a common hunting season, but harvest and population objectives may not be fully achieved if harvest potential varies among species and/or species abundances are not correlated through time. Our goal was to develop an approach for setting a common hunting season that would recognize heterogeneity in species...

Johnson, Fred; Zimmerman, Guthrie S.; Huang, Min; Padding, Paul I.; Balkcom, Greg; Runge, Michael; Devers, Patrick K.

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Year Published: 2019

Mississippi river sediment diversions and coastal wetland sustainability: Synthesis of responses to freshwater, sediment, and nutrient inputs

Management and restoration of coastal wetlands require insight into how inundation, salinity, and the availability of mineral sediment and nutrients interact to influence ecosystem functions that control sustainability. The Mississippi River Delta, which ranks among the world's largest and most productive coastal wetland complexes, has experienced...

Elsey-Quirk, Tracy; Graham, Sean A.; Mendelssohn, Irving A.; Snedden, Gregg; Day, John W.; Shaffer, Gary P.; Sharp, Leigh Anne; Twilley, Robert R.; Pahl, James; Lane, R.R.