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Filter Total Items: 963
Discovery of late Holocene-aged Acropora palmata reefs in Dry Tortugas National Park, Florida, USA: The past as a key to the future? Discovery of late Holocene-aged Acropora palmata reefs in Dry Tortugas National Park, Florida, USA: The past as a key to the future?
Emblematic of global coral-reef ecosystem decline, the coral ecosystem-engineer Acropora palmata is now rare throughout much of the western Atlantic. Understanding when and where this foundation species occurred during the past can provide information about the environmental limits defining its distribution through space and time. In this paper, the present, historical and newly dated...
Authors
Anastasios Stathakopoulos, Lauren T. Toth, Peter Alexander Bacon Modys, Selena Anne-Marie Johnson, Ilsa B. Kuffner
Microbiome data management in action workshop: Atlanta, GA, USA, June 12–13, 2024 Microbiome data management in action workshop: Atlanta, GA, USA, June 12–13, 2024
Microbiome research is revolutionizing human and environmental health, but the value and reuse of microbiome data are significantly hampered by the limited development and adoption of data standards. While several ongoing efforts are aimed at improving microbiome data management, significant gaps still remain in terms of defining and promoting adoption of consensus standards for these...
Authors
Julia Kelliher, Mashael Aljumaah, Sarah R. Bordenstein, J. Rodney Brister, Patrick Chain, JosePablo Dunduore-Arias, Joanne B. Emerson, Vanessa Moreira C. Ferdandes, Roberto Flores, Antonio Gonzalez, Zoe A. Hansen, Eneida L. Hatcher, Scott A. Jackson, Christina A. Kellogg, Ramana Madupu, Cassandra Maria Luz Miller, Chloe Mirzayi, Emmanuel F. Mongodin, Ahmed M. Moustafa, Chris Mungall, Aaron Oliver, Nonia Pariente, Jennifer Pett-Ridge, Sydne Record, Linta Reji, Anna-Louise Reysenbach, Virginia Rich, Lorna Richardson, Lynn M. Schriml, Reed S. Shabman, Maria Sierra, Matthew Sullivan, Punithavathi Sundaramurthy, K. M. Thibault, Luke R. Thompson, Scott W. Tighe, Ethell Vereen, Emiley A. Eloe-Fadrosh
Acute heat stress and the extirpation of a threatened coral species from a remote, subtropical reef system Acute heat stress and the extirpation of a threatened coral species from a remote, subtropical reef system
The ecological significance of the reef-building elkhorn coral, Acropora palmata, is threatened by heat-stress-induced mortality. The intensity and duration of the ocean heatwave affecting Dry Tortugas National Park in the summer of 2023 was historically unprecedented in its early timing and maximum temperatures reached and resulted in 100% A. palmata mortality. To understand the...
Authors
Ava Madeline Thompson, Anastasios Stathakopoulos, Karli J. Hollister, Amelia M. Lynch, Jordan C. Holder, Ilsa B. Kuffner
Ecological thresholds and transformations due to climate change: The role of abiotic stress Ecological thresholds and transformations due to climate change: The role of abiotic stress
An ecological threshold is the point at which a comparatively small environmental change triggers an abrupt and disproportionately large ecological response. In the face of accelerating climate change, there is concern that abrupt ecosystem transformations will become more widespread as critical ecological thresholds are crossed. There has been ongoing debate, however, regarding the...
Authors
Michael Osland, John B. Bradford, Lauren T. Toth, Matthew J. Germino, James Grace, Judith Z. Drexler, Camille L. Stagg, Eric E. Grossman, Karen M. Thorne, Stephanie Romanach, Davina L. Passeri, Gregory E. Noe, Jessica R. Lacy, Ken Krauss, Kurt P. Kowalski, Glenn R. Guntenspergen, Neil K. Ganju, Nicholas Enwright, Joel A. Carr, Kristin B. Byrd, Kevin J. Buffington
By
Ecosystems Mission Area, Coastal and Marine Hazards and Resources Program, California Water Science Center, Eastern Ecological Science Center, Florence Bascom Geoscience Center, Forest and Rangeland Ecosystem Science Center, Pacific Coastal and Marine Science Center, Southwest Biological Science Center, St. Petersburg Coastal and Marine Science Center, Western Ecological Research Center (WERC), Western Geographic Science Center, Wetland and Aquatic Research Center , Woods Hole Coastal and Marine Science Center
Geologic framework and Holocene sand thickness offshore of Seven Mile Island, New Jersey Geologic framework and Holocene sand thickness offshore of Seven Mile Island, New Jersey
The U.S. Geological Survey assessed the Quaternary evolution of Seven Mile Island, New Jersey, to quantify coastal sediment availability, which is crucial for establishing sediment budgets, understanding sediment dispersal, and managing coastlines. This report presents preliminary interpretations of seismic profiles, maps of Holocene sand thickness from the shoreline to 2 kilometers...
Authors
Emily A. Wei, Jennifer L. Miselis, Noreen A. Buster, Arnell S. Forde
Investigating the influence of Diadematidae scuticociliatosis on host microbiome composition Investigating the influence of Diadematidae scuticociliatosis on host microbiome composition
Mass mortality of Diadematidae urchins, caused by the Diadema antillarum scuticociliatosis Philaster clade (DScPc), affected the Caribbean in spring 2022 and subsequently spread to the eastern Mediterranean, Red Sea, and western Indian Ocean. A key question around Diadematidae scuticociliatosis (DSc), the disease caused by the scuticociliate, is whether the urchin microbiome varies...
Authors
Brayan Vilanova-Cuevas, Christopher M. DeRito, Isabella T. Ritchie, Christina A. Kellogg, James S. Evans, Alizee Zimmermann, Stacey M. Williams, Marilyn E. Brandt, Moriah L. B. Sevier, Samuel Gittens, Kayla A. Budd, Matthew Warham, William C. Sharp, Gabriel A. Delgado, Alwin Hylkema, Kimani A. Kitson-Walters, Jean-Pascal Quod, Mya Breitbart, Ian Hewson
Snapshots of mid-to-late Holocene sea-surface temperature variability from a subtropical western Atlantic coral reef Snapshots of mid-to-late Holocene sea-surface temperature variability from a subtropical western Atlantic coral reef
Large-scale Holocene climate reconstructions rely heavily on extratropical proxy records. Coral-based temperature reconstructions from the tropical and subtropical oceans therefore fill a critical spatial and temporal data gap, allowing for reconstruction of seasonally resolved temperature variability. We present five new, monthly-resolved sea-surface temperature (SST) reconstructions...
Authors
Jessica A. Jacobs, Julie N. Richey, Jennifer A. Flannery, Kaustubh Thiumalai, Lauren T. Toth
Detection of the Diadema antillarum scuticociliatosis Philaster clade on sympatric metazoa, plankton, and abiotic surfaces and assessment for its potential reemergence Detection of the Diadema antillarum scuticociliatosis Philaster clade on sympatric metazoa, plankton, and abiotic surfaces and assessment for its potential reemergence
A ciliate belonging to the Diadema antillarum scuticociliatosis (DaSc)-associated Philaster clade (DaScPc) caused catastrophic long-spined urchin mass mortality in spring and summer of 2022. The ciliate can be grown in culture in both the presence and absence of D. antillarum tissues, suggesting that it may persist outside its host by consuming microorganisms or dissolved organic...
Authors
Brayan Vilanova-Cuevas, Katherine Philipp, Ashley Altera, Amy Apprill, Cynthia C. Becker, Donald Behringer, Marilyn E. Brandt, Mya Breitbart, Kayla A. Budd, Christopher M. DeRito, Elizabeth Duermit-Moreau, James S. Evans, Maria Hopson-Fernandes, Julian Fleischer, Samuel Gittens, Michael Henson, Alwin Hylkema, Christina A. Kellogg, Andrew Maritan, Julie L. Meyer, Zoe A. Pratte, Isabella T. Ritchie, Moriah L. B. Sevier, Matthew Souza, Frank J. Stewart, Sietske Van Der Wal, Sarah VonHoehne, Ian Hewson
Modeling the impacts of sand placement strategies on barrier island evolution in a semi-enclosed bay system Modeling the impacts of sand placement strategies on barrier island evolution in a semi-enclosed bay system
This study assesses the impacts of five proposed restoration actions at Little Dauphin Island, a low-lying relic spit in a semi-enclosed bay system on the Alabama coast. A Delft3D model is developed to simulate annual scale (five-year) sediment transport and resulting bed level changes. The model is validated with observed water level and wave data, as well as sediment tracers that were...
Authors
Davina L. Passeri, Rangley C. Mickey, David M. Thompson, Michael Itzkin, Elizabeth Godsey, Matthew V. Bilskie, Alexander C. Seymour, Autumn C. Poisson, Jin Ikeda, Scott C. Hagen
Validation of the U37K' paleotemperature proxy in the South Brazilian Bight from core-top sediments Validation of the U37K' paleotemperature proxy in the South Brazilian Bight from core-top sediments
The paleothermometer based on the alkenone unsaturation index (U37K′) is often used to reconstruct past sea surface temperatures (SST). In the SW Atlantic Ocean, however, a limited understanding of the seasonal and depth distribution of coccolithophores, which generates the U37K′ signal preserved in ocean sediments, hinders accurate estimates of past regional SSTs. We analyzed 45 core...
Authors
Felipe Stanchak, Julie N. Richey, Amanda Gerotto, Amelia Shevenell, Marcia C. Bicego, Felipe A. Toledo, Michel M. de Mahiques, Renata H. Nagai
Predictive regressive models of recent marsh sediment thickness improve the quantification of coastal marsh sediment budgets Predictive regressive models of recent marsh sediment thickness improve the quantification of coastal marsh sediment budgets
Coastal marsh wetlands experience variations in vertical gains and losses through time, which have allowed them to infill relict topography and record variations in drivers. The stratigraphic unit associated with the development of the marsh also reflects the long-term importance of key ecosystem services supplied by the marsh environment, including carbon storage and storm mitigation...
Authors
Christopher G. Smith, Julie Bernier, Alisha M. Ellis, Kathryn E.L. Smith
Shifts in marsh erosion, migration, and wave exposure over nearly two centuries of sea-level rise in the Gulf of Mexico Shifts in marsh erosion, migration, and wave exposure over nearly two centuries of sea-level rise in the Gulf of Mexico
Coastal wetlands are economically important ecosystems, but are at risk to erosion from waves, storms, and sea level rise. However, marshes can persist under rising sea level through vertical accretion and migration into adjacent higher-elevation habitats. We measured rates of marsh shoreline change and migration and compared the results for historical and modern periods in a largely...
Authors
Kathryn E.L. Smith, Joseph F. Terrano, Robert L. Jenkins, Jonathan L Pitchford, Davina L. Passeri, Christopher G. Smith