Wetland and Aquatic Research Center

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WARC conducts relevant and objective research, develops new approaches and technologies, and disseminates scientific information needed to understand, manage, conserve, and restore wetlands and other aquatic and coastal ecosystems and their associated plant and animal communities throughout the nation and the world.

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Sea turtles, pythons, & manatees, oh my: USGS science in Florida

Sea turtles, pythons, & manatees, oh my: USGS science in Florida

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News

Red bubblegum coral
September 13, 2017

Scientists beginning a three-week research cruises to study deep-sea corals, canyons and seeps departed from Norfolk, Virginia on September 12 after a one-day delay due to the effects of Hurricane Irma. USGS research oceanographer Amanda Demopoulos is the lead scientist for this cruise, the first of three planned as part of a four-and-a-half year study.

USGS: Science for a changing world
August 23, 2017

A non-native insect infestation may not be the only factor involved in the ongoing die-back of a marsh grass in the Mississippi River’s “bird foot delta,” the ecologically and economically important part of coastal Louisiana where the river meets the Gulf of Mexico.

USGS: Science for a changing world
July 12, 2017

Lack of Major Hurricanes Since 2008 Is Likely the Main Reason

Publications

Year Published: 2017

Fatal attraction? Intraguild facilitation and suppression among predators

Competition and suppression are recognized as dominant forces that structure predator communities. Facilitation via carrion provisioning, however, is a ubiquitous interaction among predators that could offset the strength of suppression. Understanding the relative importance of these positive and negative interactions is necessary to anticipate...

Sivy, Kelly J.; Pozzanghera, Casey B.; Grace, James B.; Prugh, Laura R.
Sivy, K.J., Pozzanghera, C.B., Grace, J.B., and Prugh, L.R., 2017, Fatal attraction? Intraguild facilitation and suppression among predators: The American Naturalist, Online Ahead of Print, https://doi.org/10.1086/693996.

Year Published: 2017

The extremely divergent maternally- and paternally-transmitted mitochondrial genomes are co-expressed in somatic tissues of two freshwater mussel species with doubly uniparental inheritance of mtDNA

Freshwater mussel species with doubly uniparental inheritance (DUI) of mtDNA are unique because they are naturally heteroplasmic for two extremely divergent mtDNAs with ~50% amino acid differences for protein-coding genes. The paternally-transmitted mtDNA (or M mtDNA) clearly functions in sperm in these species, but it is still unknown whether it...

Breton, Sophie; Bouvet, Karim; Auclair, Gabrielle; Ghazal, Stephanie; Sietman, Bernard E.; Johnson, Nathan A.; Bettinazzi, Stefano; Dtewart, Donald T.; Guerra, Davide
Breton, S., Bouvet, K., Auclair, G., Ghazal, S., Sietman, B.E., Johnson, N.A., Bettinazzi, S., and Guerra, D., 2017, The extremely divergent maternally- and paternally-transmitted mitochondrial genomes are co-expressed in somatic tissues of two freshwater mussel species with doubly uniparental inheritance of mTDNA: PLoS ONE, v. 12, no. 8, art. e0183529, https://doi.org/10.1371/journal.pone.0183529.

Year Published: 2017

Observations of raccoon (Procyon lotor) predation on the invasive Maculata apple snail (Pomacea maculata) in southern Louisiana

We used camera traps to determine which predators were responsible for depredated Pomacea maculata (Maculata Apple Snail) shells at 2 different study sites. Evidence of predation at these sites included operculums near the shells with a small amount of flesh attached and shells accumulating a meter or more from the water’s edge with no evidence of...

Carter, Jacoby; Merino, Sergio; Prejean, Drew; LaFleur, Gary Jr.
Carter, J., Merino, S., Prejean, D., and LaFleur, G., Jr., 2017, Observations of raccoon (Procyon lotor) predation on the invasive Maculata apple snail (Pomacea maculata) in southern Louisiana: Southeastern Naturalist, v. 16, no. 3, p. N14-18, https://www.eaglehill.us/SENAonline/sena-v16-n3-2017.shtml.