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Pilot testing and protocol development of giant applesnail suppression at Mandalay National Wildlife Refuge, Louisiana—July–October 2017 Pilot testing and protocol development of giant applesnail suppression at Mandalay National Wildlife Refuge, Louisiana—July–October 2017

This report provides an overview of the pilot study and description of the techniques developed for a future mitigation study of Pomacea maculata (giant applesnail) at the U.S. Fish and Wildlife Service Mandalay National Wildlife Refuge, Louisiana (MNWR). Egg mass suppression is a potential strategy for the mitigation of the invasive giant applesnail. In previous studies at Langan...
Authors
Jacoby Carter, Sergio Merino

Migratory hummingbirds make their own rules: The decision to resume migration along a barrier Migratory hummingbirds make their own rules: The decision to resume migration along a barrier

Knowing how naïve migrants respond to intrinsic and extrinsic factors experienced en route will allow a more thorough understanding of the endogenous migratory programme. To understand how inexperienced individuals respond to ecological features, we tracked the migratory departures of juvenile ruby-throated hummingbirds, Archilochus colubris, one of the smallest (∼ 3 g) and least-studied...
Authors
Theodore J. Zenzal, Frank R. Moore, Robert H. Diehl, Michael B. Ward, JIll Deppe

Context-dependent interactions and the regulation of species richness in freshwater fish Context-dependent interactions and the regulation of species richness in freshwater fish

Species richness is regulated by a complex network of scale-dependent processes. This complexity can obscure the influence of limiting species interactions, making it difficult to determine if abiotic or biotic drivers are more predominant regulators of richness. Using integrative modeling of freshwater fish richness from 721 lakes along an 11olatitudinal gradient, we find negative...
Authors
Andrew S. MacDougall, Eric Harvey, Jenny L. McCune, Karin A. Nilsson, Joseph Bennett, Jennifer Firn, Timothy Bartley, James B. Grace, Jocelyn Kelly, Tyler D. Tunney, Bailey C. McMeans, Shin-Ichiro S. Matsuzaki, Taku Kadoya, Ellen Esch, Kevin Cazelles, Nigel Lester, Kevin S. McCann

Effects of sediment application on Nyssa aquatica and Taxodium distichum saplings Effects of sediment application on Nyssa aquatica and Taxodium distichum saplings

The decline of Taxodium distichum forests along the Gulf Coast of North America is partly due to elevation loss and subsequent flooding. In many coastal wetlands, a common approach for coastal restoration is to rebuild elevation through the application of dredge material, but this technique has not been used widely in coastal forests due to concerns of negatively impacting trees. This...
Authors
Isabel Grandy, Linda Messina, Evelyn R. Anemaet, Beth A. Middleton

DEEP SEARCH: Deep sea exploration to advance research on coral/canyon/cold seep habitats DEEP SEARCH: Deep sea exploration to advance research on coral/canyon/cold seep habitats

Launched in August 2017, Deep Sea Exploration to Advance Research on Coral/Canyon/Cold seep Habitats (DEEP SEARCH) is a multiyear, multi-agency study to characterize the deep-sea ecosystems of the US Mid- and South Atlantic (Figure 1). The study is funded through an interagency partnership between NOAA, the Bureau of Ocean Energy Management (BOEM), and the US Geological Survey, and it is...
Authors
Erik E. Cordes, Amanda W. J. Demopoulos, Gregory Boland, Caitlin Adams

Discovering the deep: Exploring remote Pacific marine protected areas Discovering the deep: Exploring remote Pacific marine protected areas

The 2017 Discovering the Deep expedition provided the first glimpse of the deep-sea geology and ecology of the deepwater regions of Swains Island, the Howland and Baker Islands Unit of PRIMNM, Phoenix Islands Protected Areas (PIPA), and the Tokelau Region (Figure 1). Prior to this expedition, virtually no visual reconnaissance had been conducted in any of these areas below scuba diving...
Authors
Amanda W.J. Demopoulos, Steven Auscavitch, Derek Sowers, Nikolai Pawlenko, Brian R. C. Kennedy

Osteopilus septentrionalis (Cuban treefrog) Osteopilus septentrionalis (Cuban treefrog)

USA: LOUISIANA: east baton Rouge paRish: private property in a garden center on a bromeliad in the 1700 block of Millerville Road in Baton Rouge (ca. 30.443°N, 91.023°W; WGS 84). 29 November 2016. Joseph Roy. Verified by Hardin Waddle. Florida Museum of Natural History (UF 181952; photo voucher). New parish record. This sub-adult was discovered after the bromeliad was bought and placed...
Authors
Brad M. Glorioso, Philip Vanbergen, Joseph Roy, Matthew Walter, Lauren Leonpacher, Mark Freistak

Temporal shift of sea turtle nest sites in an eroding barrier island beach Temporal shift of sea turtle nest sites in an eroding barrier island beach

Shoreline changes affect functionality of a sandy beach as a wildlife habitat and coastal erosion is among the primary causes of the changes. We examined temporal shifts in locations where loggerheads placed nests in relation to coastal erosion along a barrier island beach in the northern Gulf of Mexico. We first confirmed consistency in long-term (1855–2001), short-term (1976–2001), and...
Authors
Ikuko Fujisaki, Margaret M. Lamont, Raymond R. Carthy

Conservation and restoration of mangroves: Global status, perspectives, and prognosis Conservation and restoration of mangroves: Global status, perspectives, and prognosis

Mangrove forests provide critical services around the globe to both human populations and the ecosystems they occupy. However, losses of mangrove habitat of more than 50% have been recorded in some parts of the world, and these losses are largely attributable to human activities. The importance of mangroves and the threats to their persistence have long been recognized, leading to...
Authors
Stephanie S. Romanach, Donald L. DeAngelis, Hock Lye Koh, Yuhong Li, Su Yean Teh, Raja Sulaiman Raja Barizan, Lu Zhai

Evaluating GPS biologging technology for studying spatial ecology of large constricting snakes Evaluating GPS biologging technology for studying spatial ecology of large constricting snakes

Background: GPS telemetry has revolutionized the study of animal spatial ecology in the last two decades. Until recently, it has mainly been deployed on large mammals and birds, but the technology is rapidly becoming miniaturized, and applications in diverse taxa are becoming possible. Large constricting snakes are top predators in their ecosystems, and accordingly they are often a...
Authors
Brian Smith, Kristen M. Hart, Frank J. Mazzotti, Mathieu Basille, Christina M. Romagosa

Molecular phylogeny of the Nearctic and Mesoamerican freshwater mussel genus Megalonaias Molecular phylogeny of the Nearctic and Mesoamerican freshwater mussel genus Megalonaias

Megalonaias is the most geographically widespread genus of the subfamily Ambleminae and is distributed across much of the eastern half of North America, from Minnesota to Nicaragua. Despite the large geographic distribution, the species-level diversity of Megalonaias is quite depauperate (2 spp.), suggesting the genus may not be constrained by the same physical, ecological, or...
Authors
John M. Pfeiffer, Ashley Sharpe, Nathan A. Johnson, Kitty F. Emery, Lawrence M. Page

Molecular and morphological data reveal non-monophyly and speciation in imperiled freshwater mussels (Anodontoides and Strophitus) Molecular and morphological data reveal non-monophyly and speciation in imperiled freshwater mussels (Anodontoides and Strophitus)

Accurate taxonomic placement is vital to conservation efforts considering many intrinsic biological characteristics of understudied species are inferred from closely related taxa. The rayed creekshell, Anodontoides radiatus (Conrad, 1834), exists in the Gulf of Mexico drainages from western Florida to Louisiana and has been petitioned for listing under the Endangered Species Act. We set...
Authors
Chase H. Smith, Nathan A. Johnson, John M. Pfeiffer, Michael M. Gangloff
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