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Explore WARC's science publications.

Filter Total Items: 3501

Evaluating the effect of expert elicitation techniques on population status assessment in the face of large uncertainty Evaluating the effect of expert elicitation techniques on population status assessment in the face of large uncertainty

Population projection models are important tools for conservation and management. They are often used for population status assessments, for threat analyses, and to predict the consequences of conservation actions. Although conservation decisions should be informed by science, critical decisions are often made with very little information to support decision-making. Conversely...
Authors
Jennifer F. Moore, Julien Martin, Hardin Waddle, Evan H. Campbell Grant, Jillian Elizabeth Fleming, Eve Bohnett, Thomas S.B. Akre, Donald J. Brown, Michael T. Jones, Jessica R. Meck, Kevin J. Oxenrider, Anthony Tur, Lisabeth L. Willey, Fred A Johnson

Inter-nesting movements, migratory pathways, and resident foraging areas of green sea turtles (Chelonia mydas) satellite-tagged in Southwest Florida Inter-nesting movements, migratory pathways, and resident foraging areas of green sea turtles (Chelonia mydas) satellite-tagged in Southwest Florida

Globally, sea turtle research and conservation efforts are underway to identify important high-use areas where these imperiled individuals may be resident for weeks to months to years. In the southeastern Gulf of Mexico, recent telemetry studies highlighted post-nesting foraging sites for federally endangered green turtles (Chelonia mydas) around the Florida Keys. In order to delineate...
Authors
Kelly A Sloan, David S. Addison, Andrew T. Glinsky, Allison Benscoter, Kristen Hart

Biology: Integrating core to essential variables (Bio-ICE) task team report for marine mammals Biology: Integrating core to essential variables (Bio-ICE) task team report for marine mammals

Marine mammals are wide-ranging, relatively long-lived organisms that play a crucial role in maintaining healthy ocean ecosystems. Often referred to as ecosystem engineers and sentinel species in marine ecosystems, these charismatic megafauna feed at a variety of trophic levels, affecting food web dynamics and cycling of chemicals and nutrients in the water column as well as in benthic...
Authors
Samantha E. Simmons, Abigail Benson, Matthew Biddle, Gabrielle Canonico, Maggie Chory, Kruti Desai, Masha Edmondson, Jason Gedamke, Stacie K. Hardy, Margaret Hunter, Anu Kumar, Laura Lorenzoni, Brian D. Melzian, Keith Mullin, Kim M. Parsons, James Price, Shannon Rankin, Patricia E. Rosel, Heather R. Spence, Sofie M. van Parijs, Michael J. Weise

Workshops report for mesophotic and deep benthic community fish, mobile invertebrates, sessile invertebrates and infauna Workshops report for mesophotic and deep benthic community fish, mobile invertebrates, sessile invertebrates and infauna

Two workshops with subject matter experts in the appropriate fields, were held in November and December 2021 to elicit guidance and feedback from the broader mesophotic and deep benthic scientific community. These workshops focused on best practices/approaches and identifying data gaps relative to habitat assessment and evaluation goals of the Mesophotic and Deep Benthic Community (MDBC)
Authors
Rachel Bassett, Stacey L. Harter, Randy Clark, Ian Zink, Katherine Hornick, Jennifer Hartman, Hanna Bliska, Melissa Carle, Tracey Sutton, Amanda Demopoulos, Andy David, Kristopher Benson, Jill Bourque, Martha S. Nizinski, Nancy G. Prouty, Stephanie M. Sharuga, Alicia Caporaso, Jennifer Le, Jennifer Herting, Cheryl Morrison, Matthew Poti

Caretta caretta (Loggerhead Sea Turtle) nesting exchange Caretta caretta (Loggerhead Sea Turtle) nesting exchange

The Northwest Atlantic population of Loggerhead Sea Turtles (Caretta caretta) is one of the largest C. caretta populations in the world and is listed as threatened. This population was divided into five genetically distinct subpopulations, including the Northern Gulf of Mexico (NGoM) subpopulation (Shamblin et al. 2017 Mar. Bio. 164:138). Across the NGoM, the majority of C. caretta...
Authors
Margaret Lamont, Jennifer S. Walker, Donna J. Shaver

Salinification of coastal wetlands and freshwater management to support resilience Salinification of coastal wetlands and freshwater management to support resilience

Climates are rapidly changing in wetland ecosystems around the world and historical land-use change is not always given enough consideration in climate adaptation discussions. Historical changes to hydrology and other key environments can exacerbate vegetation stress; e.g., recent drought and flood episodes are likely more extreme because of climate change. The contributions of global...
Authors
Beth Middleton, Jere Boudell

Ambystoma opacum (marbled salamander). Atypical nest sites Ambystoma opacum (marbled salamander). Atypical nest sites

The discovery of inconspicuous nests in secretive species not only expands knowledge but can reveal previously unknown behaviors and ecological consequences of those behaviors. Marbled salamanders exhibit the unusual strategy of laying their eggs terrestrially under cover. Here we report multiple occurrences of A. opacum nesting inside logs, which may be atypical for this species.
Authors
Joshua M Hall, Brad Glorioso, J Sean Doody

Capture vulnerability of sea turtles on recreational fishing piers Capture vulnerability of sea turtles on recreational fishing piers

Capture vulnerability of commercial and recreational fishes has been associated with behavioral, morphological, and life-history traits; however, relationships with non-target species, such as sea turtles, have not been adequately studied. We examined species composition, timing of captures, morphological variables including body size and head width, and body condition of sea turtles...
Authors
Margaret Lamont, Robert Michael Mollenhauer, Allen M. Foley

Using fish community and population indicators to assess the biological condition of streams and rivers of the Chesapeake Bay watershed, USA Using fish community and population indicators to assess the biological condition of streams and rivers of the Chesapeake Bay watershed, USA

The development of indicators to assess relative freshwater condition is critical for management and conservation. Predictive modeling can enhance the utility of indicators by providing estimates of condition for unsurveyed locations. Such approaches grant understanding of where “good” and “poor” conditions occur and provide insight into landscape contexts supporting such conditions...
Authors
Kelly O. Maloney, Kevin P. Krause, Matthew J. Cashman, Wesley M. Daniel, Benjamin P. Gressler, Daniel J. Wieferich, John A. Young

Juvenile African clawed frogs (Xenopus laevis) express growth, metamorphosis, mortality, gene expression, and metabolic changes when exposed to thiamethoxam and clothianidin Juvenile African clawed frogs (Xenopus laevis) express growth, metamorphosis, mortality, gene expression, and metabolic changes when exposed to thiamethoxam and clothianidin

Neonicotinoids (NEO) represent the main class of insecticides currently in use, with thiamethoxam (THX) and clothianidin (CLO) primarily applied agriculturally. With few comprehensive studies having been performed with non-target amphibians, the aim was to investigate potential biomarker responses along an adverse outcome pathway of NEO exposure, whereby data were collected on multiple...
Authors
Jill Jenkins, Katherine R. Hartop, Ghadeer Bukhari, Debra E. Howton, Kelly L. Smalling, Scott Mize, Michelle L. Hladik, Darren Johnson, Rassa Dale, Bonnie L. Brown

Evaluating establishment success of non-native fishes introduced to inland aquatic habitats of tropical Pacific islands Evaluating establishment success of non-native fishes introduced to inland aquatic habitats of tropical Pacific islands

An information-theoretic approach was used to evaluate non-native freshwater fish species introduced to insular habitats of Hawaii and Guam comparing successful establishments vs. failures. Since the late 1800s, as many as 81 non-native freshwater fish species have been recorded as introduced to Hawaii and Guam (combined) and 50 (62%) of these are documented as having one or more...
Authors
Stephen Walsh, Leo Nico, Mark W. Miller

A characterization of deep-sea coral and sponge communities along the California and Oregon coast using a remotely operated vehicle on the EXPRESS 2018 expedition A characterization of deep-sea coral and sponge communities along the California and Oregon coast using a remotely operated vehicle on the EXPRESS 2018 expedition

Deep-sea coral and sponge (DSCS) communities serve as essential fish habitats (EFH) by providing shelter and nursery habitat, increasing diversity, and increasing prey availability (Freese and Wing, 2003; Bright, 2007; Baillon et al., 2012; Henderson et al., 2020). Threats to these long-lived, fragile organisms from bottom contact fishing gear, potential offshore renewable energy...
Authors
Tom Laidig, Diana Watters, Nancy G. Prouty, Meredith Everett, Lizzie Duncan, Liz Clarke, Chris Caldow, Amanda Demopoulos
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