Richard Day
Richard Day is a retired Geographer.
Science and Products
Understanding Ecosystem Response and Infrastructure Vulnerability to Sea-Level Rise for Several National Parks and Preserves in the South Atlantic-Gulf Region
USGS Researchers at the Wetland and Aquatic Research Center and the St. Petersburg Coastal and Marine Science Center will provide valuable information to natural resource managers on how important coastal ecosystems in the National Park Service South Atlantic-Gulf Region may change over time. This information could assist with future-focused land management and stewardship.
Wetland Carbon Working Group: Improving Methodologies and Estimates of Carbon and Greenhouse Gas Flux in Wetlands
WARC researchers are working to quantify the impacts of future climate and land use/land cover change on greenhouse gas emissions and reductions.
Environmental Flows and Bottomland Hardwood Habitat in the Southeastern U.S.
Environmental flows describes the quantity, quality, and timing of water flows required to sustain freshwater and estuarine ecosystems and the human livelihoods and well-being that depend on these ecosystems.
RESTORE Science: Inventory of Gulf of Mexico Ecosystem Indicators Using an Ecological Resilience Framework
To effectively manage an ecosystem, resource managers need a way to evaluate its health and ability to function. Metrics that indicate ecosystem condition - or indicators - can be used to help determine how well management strategies work.
Green-Tree Reservoir management practices within the U.S. Fish and Wildlife Service National Wildlife Refuge System
Green-Tree Reservoirs are used as a management tool by National Wildlife Refuges throughout the Southeast United States, but data suggests that forest productivity has declined in these areas. USGS investigates the effects of climate and flooding on tree growth and mortality to assist refuge managers adapt management strategies.
Ecological Implications of Mangrove Forest Migration in the Southeastern U.S.
Coastal wetlands purify water, protect coastal communities from storms, sequester (store) carbon, and provide habitat for fish and wildlife. They are also vulnerable to climate change. In particular, changes in winter climate (warmer temperatures and fewer freeze events) may transform coastal wetlands in the northern Gulf of Mexico, as mangrove forests are expected to expand their range and replac
Filter Total Items: 25
Sea-level rise and high tide flooding inundation probability and depth statistics at San Juan National Historic Site, Puerto Rico
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s San Juan National Historic Site. These datasets were developed using 1-m digital elevation model (DEM) from the 3D Elevation program. This data release includes results from analyses of two local sea
Sea-level rise and high tide flooding inundation probability and depth statistics at Dry Tortugas National Park, Florida
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s Dry Tortugas National Park. These datasets were developed using digital elevation model (DEM) from National Oceanic and Atmospheric Administration (NOAA). This data release includes results from anal
Sea-level rise and high tide flooding inundation probability and depth statistics at Biscayne National Park, Florida
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s Biscayne National Park. For information on the digital elevation model (DEM) source used to develop these datasets refer to the corresponding spatial metadata file (Danielson and others, 2023). This
Sea-level rise and high tide flooding inundation probability and depth statistics at Big Cypress National Preserve, Florida
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s Big Cypress National Preserve. For information on the digital elevation model (DEM) source used to develop these datasets refer to the corresponding spatial metadata file (Danielson and others, 2023)
Treeband measurements of Taxodium distichum in coastal Louisiana, USA from August 2004 through April 2016
To study the long-term effects of hydrology and salinity on the health of these systems, we fitted dendrometer bands on selected trees in permanent forest productivity plots established between 2004 and 2006 within six baldcypress stands. Three of these stands were in freshwater sites permanently or seasonally flooded with low salinity (0.1-1.3 ppt), while the other three are affected by tide and
Sea-level rise and high tide flooding inundation probability and depth statistics at De Soto National Memorial, Florida
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s De Soto National Memorial. These datasets were developed using 1-m digital elevation model (DEM) from the 3D Elevation program. This data release includes results from analyses of two local sea-level
Wetland migration analysis for relative sea-level rise scenarios in Nassau and Duval Counties, Florida
This dataset includes probabilistic outputs for estimating areal coverage of current wetland coverage and potential wetland migration under various relative sea-level rise scenarios in Nassau and Duval Counties, which includes the City of Jacksonville and the U.S. National Park Service's Timucuan Ecological and Historic Preserve. These data contain potential migration for regularly oceanic-flooded
Corrected digital elevation model in coastal wetlands in Nassau and Duval Counties, Florida, 2018
High-resolution elevation data provide a foundational layer needed to understand regional hydrology and ecology under contemporary and future-predicted conditions with accelerated sea-level rise. While the development of digital elevation models (DEMs) from light detection and ranging data has enhanced the ability to observe elevation in coastal zones, the elevation error can be substantial in den
Sea-level rise and high tide flooding inundation probability and depth statistics in Nassau and Duval Counties, Florida
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s Timucuan Ecological and Historic Preserve. These datasets were developed using 1-m digital elevation model (DEM) from 2018 with reduced elevation error in coastal wetlands (McHenry and others, 2023).
Vegetation survey of southwest Florida for use in assessment of the Picayune Strand Restoration Project effects
This release consists of vegetation data collected across an environmental gradient at Ten Thousand Islands National Wildlife Refuge (TTI NWR) near Naples, Florida, USA. The refuge is within the impact area of the Picayune Strand Restoration Project (PSRP), a large-scale hydrologic restoration project in southwest Florida that was authorized by the U.S. Congress in 2007. Vegetation transects were
Mangrove damage along northern Gulf of Mexico from extreme freeze event on February 2021
Climate change is altering the frequency and intensity of extreme weather events. Quantifying ecosystem responses to extreme events at the landscape scale is critical for understanding and responding to climate-driven change but is constrained by limited data availability. Here, we integrated remote sensing with ground-based observations to quantify landscape-scale vegetation damage from an extrem
2021 Gulf of Mexico Mangrove Freeze Damage Data
This data set contains measurements of black mangrove (Avicennia germinans) leaf damage following the February 2021 freeze event that affected mangroves in the northern Gulf of Mexico.
Filter Total Items: 58
Projected sea-level rise and high tide flooding at San Juan National Historic Site, Puerto Rico
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons
Projected sea-level rise and high tide flooding at Dry Tortugas National Park, Florida
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons
Projected sea-level rise and high tide flooding at Biscayne National Park, Florida
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons, Jeffrey J. Danielson, William M. Cushing
Projected sea-level rise and high tide flooding at Big Cypress National Preserve, Florida
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons, Jeffrey J. Danielson, William M. Cushing
Interactive effects of salinity and hydrology on radial growth of bald cypress (Taxodium distichum (L.) Rich.) in coastal Louisiana, USA
Tidal freshwater forests are usually located at or above the level of mean high water. Some Louisiana coastal forests are below mean high water, especially bald cypress (Taxodium distichum (L.) Rich.) forests because flooding has increased due to the combined effects of global sea level rise and local subsidence. In addition, constructed channels from the coast inland act as conduits for saltwater
Authors
Richard Day, Andrew From, Darren Johnson, Ken Krauss
Projected sea-level rise and high tide flooding at De Soto National Memorial, Florida
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons
Projected sea-level rise and high tide flooding at Timucuan Ecological and Historic Preserve, Florida
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons
Enhancing assessments of coastal wetland migration potential with sea-level rise: Accounting for uncertainty in elevation data, tidal data, and future water levels
Sea-level rise rates are predicted to surpass rates of wetland vertical adjustment in the coming decades in many areas, increasing the potential for wetland submergence. Information on where wetland migration is possible can help natural resource managers for planning land acquisition or enhancing habitat connectivity to bolster adaptation of coastal wetlands to rising seas. Elevation-based models
Authors
Nicholas Enwright, Michael Osland, Hana R. Thurman, Claire E. McHenry, William C. Vervaeke, Brett Patton, Davina Passeri, Jason M. Stoker, Richard Day, Bethanie M. Simons
Temperature thresholds for leaf damage from two extreme freeze events (2018 and 2021) near the northern range limit of black mangroves (Avicennia germinans) in southeastern North America
Extreme winter temperatures govern the northern range limit of black mangroves (Avicennia germinans) in southeastern North America. There is a pressing need for studies that advance our understanding of how extreme cold temperature events affect mangroves near their range limits. However, such events are infrequent and challenging to study at regional scales. Here, we compared the damage to mangro
Authors
Simen Kaalstad, Michael Osland, Donna J. Devlin, C. Edward Proffitt, Laura Feher, Anna R. Armitage, Richard Day, Kathleen M. Swanson, Gordon Anderson, Brigid Berger, Just Cebrian, Karen L. Cummins, Kenneth H. Dunton, Ilka C. Feller, Alejandro Fierro-Cabo, Elena A. Flores, Andrew From, A. Randall Hughes, David A. Kaplan, Amy K. Langston, Melinda Martinez, Briana Martinez, Christopher J. Miller, Nathan G.F. Reaver, Colt R. Sanspree, Caitlin M. Snyder, Andrew P. Stetter, Jamie E. Thompson, Carlos Zamora-Tovar
Integrating remote sensing with ground-based observations to quantify the effects of an extreme freeze event on black mangroves (Avicennia germinans) at the landscape scale
Climate change is altering the frequency and intensity of extreme weather events. Quantifying ecosystem responses to extreme events at the landscape scale is critical for understanding and responding to climate-driven change but is constrained by limited data availability. Here, we integrated remote sensing with ground-based observations to quantify landscape-scale vegetation damage from an extrem
Authors
Melinda Martinez, Michael Osland, James B. Grace, Nicholas Enwright, Camille Stagg, Simen Kaalstad, Gordon Anderson, Anna R. Armitage, Just Cebrian, Karen L. Cummins, Richard Day, Donna J. Devlin, Kenneth H. Dunton, Laura Feher, Alejandro Fierro-Cabo, Elena A. Flores, Andrew From, A. Randall Hughes, David A. Kaplan, Amy K. Langston, Christopher J. Miller, Charles E. Proffitt, Nathan G.F. Reaver, Colt R. Sanspree, Caitlin M. Snyder, Andrew P. Stetter, Kathleen M. Swanson, Jamie E. Thompson, Carlos Zamora-Tovar
Rapidly changing range limits in a warming world: Critical data limitations and knowledge gaps for advancing understanding of mangrove range dynamics in the southeastern USA
Climate change is altering species’ range limits and transforming ecosystems. For example, warming temperatures are leading to the range expansion of tropical, cold-sensitive species at the expense of their cold-tolerant counterparts. In some temperate and subtropical coastal wetlands, warming winters are enabling mangrove forest encroachment into salt marsh, which is a major regime shift that has
Authors
Rémi Bardou, Michael Osland, Steven B. Scyphers, Christine C. Shepard, Karen E. Aerni, Jahson B. Alemu, Robert Crimian, Richard Day, Nicholas Enwright, Laura Feher, Sarah L. Gibbs, Kiera O'Donnell, Savannah H. Swinea, Kalaina Thorne, Sarit Truskey, Anna R. Armitage, Ronald J. Baker, Joshua L. Breithaupt, Kyle C. Cavanaugh, Just Cebrian, Karen Cummins, Donna J. Devlin, Jacob Doty, William L. Ellis, Ilka C. Feller, Christopher A. Gabler, Yiyang Kang, David A. Kaplan, John Paul Kennedy, Ken Krauss, Margaret Lamont, Kam-biu Liu, Melinda Martinez, Ashley M. Matheny, Giovanna M. McClenachan, Karen L. McKee, Irving A. Mendelssohn, Thomas C. Michot, Christopher J. Miller, Jena A. Moon, Ryan P. Moyer, James A. Nelson, Richard O'Connor, James W. Pahl, Jonathan L. Pitchford, C. Edward Proffitt, Tracy Quirk, Kara R. Radabaugh, Whitney A. Scheffel, Delbert L. Smee, Caitlin M. Snyder, Eric Sparks, Kathleen M. Swanson, William C. Vervaeke, Carolyn A. Weaver, Jonathan A Willis, Erik S. Yando, Qiang Yao, A. Randall Hughes
Hydrologic connectivity and residence time affect the sediment trapping efficiency and dissolved oxygen concentrations of the Atchafalaya River Basin
Little is known about water movement, volume, or residence time (RT), and how those characteristics affect sediment trapping efficiency (TE) and dissolved oxygen concentrations (DO) in the United States' largest remaining bottomland hardwood swamp, the Atchafalaya River Basin. To better understand these dynamics, this study used bathymetry, lidar, and stage records to determine volumes in the Basi
Authors
Daniel Kroes, Richard Day, Michael D. Kaller, Charles R. Demas, William E. Kelso, Tiffany Pasco, Raynie Harlan, Steven Roberts
Science and Products
Understanding Ecosystem Response and Infrastructure Vulnerability to Sea-Level Rise for Several National Parks and Preserves in the South Atlantic-Gulf Region
USGS Researchers at the Wetland and Aquatic Research Center and the St. Petersburg Coastal and Marine Science Center will provide valuable information to natural resource managers on how important coastal ecosystems in the National Park Service South Atlantic-Gulf Region may change over time. This information could assist with future-focused land management and stewardship.
Wetland Carbon Working Group: Improving Methodologies and Estimates of Carbon and Greenhouse Gas Flux in Wetlands
WARC researchers are working to quantify the impacts of future climate and land use/land cover change on greenhouse gas emissions and reductions.
Environmental Flows and Bottomland Hardwood Habitat in the Southeastern U.S.
Environmental flows describes the quantity, quality, and timing of water flows required to sustain freshwater and estuarine ecosystems and the human livelihoods and well-being that depend on these ecosystems.
RESTORE Science: Inventory of Gulf of Mexico Ecosystem Indicators Using an Ecological Resilience Framework
To effectively manage an ecosystem, resource managers need a way to evaluate its health and ability to function. Metrics that indicate ecosystem condition - or indicators - can be used to help determine how well management strategies work.
Green-Tree Reservoir management practices within the U.S. Fish and Wildlife Service National Wildlife Refuge System
Green-Tree Reservoirs are used as a management tool by National Wildlife Refuges throughout the Southeast United States, but data suggests that forest productivity has declined in these areas. USGS investigates the effects of climate and flooding on tree growth and mortality to assist refuge managers adapt management strategies.
Ecological Implications of Mangrove Forest Migration in the Southeastern U.S.
Coastal wetlands purify water, protect coastal communities from storms, sequester (store) carbon, and provide habitat for fish and wildlife. They are also vulnerable to climate change. In particular, changes in winter climate (warmer temperatures and fewer freeze events) may transform coastal wetlands in the northern Gulf of Mexico, as mangrove forests are expected to expand their range and replac
Filter Total Items: 25
Sea-level rise and high tide flooding inundation probability and depth statistics at San Juan National Historic Site, Puerto Rico
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s San Juan National Historic Site. These datasets were developed using 1-m digital elevation model (DEM) from the 3D Elevation program. This data release includes results from analyses of two local sea
Sea-level rise and high tide flooding inundation probability and depth statistics at Dry Tortugas National Park, Florida
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s Dry Tortugas National Park. These datasets were developed using digital elevation model (DEM) from National Oceanic and Atmospheric Administration (NOAA). This data release includes results from anal
Sea-level rise and high tide flooding inundation probability and depth statistics at Biscayne National Park, Florida
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s Biscayne National Park. For information on the digital elevation model (DEM) source used to develop these datasets refer to the corresponding spatial metadata file (Danielson and others, 2023). This
Sea-level rise and high tide flooding inundation probability and depth statistics at Big Cypress National Preserve, Florida
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s Big Cypress National Preserve. For information on the digital elevation model (DEM) source used to develop these datasets refer to the corresponding spatial metadata file (Danielson and others, 2023)
Treeband measurements of Taxodium distichum in coastal Louisiana, USA from August 2004 through April 2016
To study the long-term effects of hydrology and salinity on the health of these systems, we fitted dendrometer bands on selected trees in permanent forest productivity plots established between 2004 and 2006 within six baldcypress stands. Three of these stands were in freshwater sites permanently or seasonally flooded with low salinity (0.1-1.3 ppt), while the other three are affected by tide and
Sea-level rise and high tide flooding inundation probability and depth statistics at De Soto National Memorial, Florida
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s De Soto National Memorial. These datasets were developed using 1-m digital elevation model (DEM) from the 3D Elevation program. This data release includes results from analyses of two local sea-level
Wetland migration analysis for relative sea-level rise scenarios in Nassau and Duval Counties, Florida
This dataset includes probabilistic outputs for estimating areal coverage of current wetland coverage and potential wetland migration under various relative sea-level rise scenarios in Nassau and Duval Counties, which includes the City of Jacksonville and the U.S. National Park Service's Timucuan Ecological and Historic Preserve. These data contain potential migration for regularly oceanic-flooded
Corrected digital elevation model in coastal wetlands in Nassau and Duval Counties, Florida, 2018
High-resolution elevation data provide a foundational layer needed to understand regional hydrology and ecology under contemporary and future-predicted conditions with accelerated sea-level rise. While the development of digital elevation models (DEMs) from light detection and ranging data has enhanced the ability to observe elevation in coastal zones, the elevation error can be substantial in den
Sea-level rise and high tide flooding inundation probability and depth statistics in Nassau and Duval Counties, Florida
This dataset includes elevation-based probability and depth statistics for estimating inundation under various sea-level rise and high tide flooding scenarios in and around the National Park Service’s Timucuan Ecological and Historic Preserve. These datasets were developed using 1-m digital elevation model (DEM) from 2018 with reduced elevation error in coastal wetlands (McHenry and others, 2023).
Vegetation survey of southwest Florida for use in assessment of the Picayune Strand Restoration Project effects
This release consists of vegetation data collected across an environmental gradient at Ten Thousand Islands National Wildlife Refuge (TTI NWR) near Naples, Florida, USA. The refuge is within the impact area of the Picayune Strand Restoration Project (PSRP), a large-scale hydrologic restoration project in southwest Florida that was authorized by the U.S. Congress in 2007. Vegetation transects were
Mangrove damage along northern Gulf of Mexico from extreme freeze event on February 2021
Climate change is altering the frequency and intensity of extreme weather events. Quantifying ecosystem responses to extreme events at the landscape scale is critical for understanding and responding to climate-driven change but is constrained by limited data availability. Here, we integrated remote sensing with ground-based observations to quantify landscape-scale vegetation damage from an extrem
2021 Gulf of Mexico Mangrove Freeze Damage Data
This data set contains measurements of black mangrove (Avicennia germinans) leaf damage following the February 2021 freeze event that affected mangroves in the northern Gulf of Mexico.
Filter Total Items: 58
Projected sea-level rise and high tide flooding at San Juan National Historic Site, Puerto Rico
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons
Projected sea-level rise and high tide flooding at Dry Tortugas National Park, Florida
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons
Projected sea-level rise and high tide flooding at Biscayne National Park, Florida
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons, Jeffrey J. Danielson, William M. Cushing
Projected sea-level rise and high tide flooding at Big Cypress National Preserve, Florida
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons, Jeffrey J. Danielson, William M. Cushing
Interactive effects of salinity and hydrology on radial growth of bald cypress (Taxodium distichum (L.) Rich.) in coastal Louisiana, USA
Tidal freshwater forests are usually located at or above the level of mean high water. Some Louisiana coastal forests are below mean high water, especially bald cypress (Taxodium distichum (L.) Rich.) forests because flooding has increased due to the combined effects of global sea level rise and local subsidence. In addition, constructed channels from the coast inland act as conduits for saltwater
Authors
Richard Day, Andrew From, Darren Johnson, Ken Krauss
Projected sea-level rise and high tide flooding at De Soto National Memorial, Florida
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons
Projected sea-level rise and high tide flooding at Timucuan Ecological and Historic Preserve, Florida
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events. Through a Natural Resource
Authors
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons
Enhancing assessments of coastal wetland migration potential with sea-level rise: Accounting for uncertainty in elevation data, tidal data, and future water levels
Sea-level rise rates are predicted to surpass rates of wetland vertical adjustment in the coming decades in many areas, increasing the potential for wetland submergence. Information on where wetland migration is possible can help natural resource managers for planning land acquisition or enhancing habitat connectivity to bolster adaptation of coastal wetlands to rising seas. Elevation-based models
Authors
Nicholas Enwright, Michael Osland, Hana R. Thurman, Claire E. McHenry, William C. Vervaeke, Brett Patton, Davina Passeri, Jason M. Stoker, Richard Day, Bethanie M. Simons
Temperature thresholds for leaf damage from two extreme freeze events (2018 and 2021) near the northern range limit of black mangroves (Avicennia germinans) in southeastern North America
Extreme winter temperatures govern the northern range limit of black mangroves (Avicennia germinans) in southeastern North America. There is a pressing need for studies that advance our understanding of how extreme cold temperature events affect mangroves near their range limits. However, such events are infrequent and challenging to study at regional scales. Here, we compared the damage to mangro
Authors
Simen Kaalstad, Michael Osland, Donna J. Devlin, C. Edward Proffitt, Laura Feher, Anna R. Armitage, Richard Day, Kathleen M. Swanson, Gordon Anderson, Brigid Berger, Just Cebrian, Karen L. Cummins, Kenneth H. Dunton, Ilka C. Feller, Alejandro Fierro-Cabo, Elena A. Flores, Andrew From, A. Randall Hughes, David A. Kaplan, Amy K. Langston, Melinda Martinez, Briana Martinez, Christopher J. Miller, Nathan G.F. Reaver, Colt R. Sanspree, Caitlin M. Snyder, Andrew P. Stetter, Jamie E. Thompson, Carlos Zamora-Tovar
Integrating remote sensing with ground-based observations to quantify the effects of an extreme freeze event on black mangroves (Avicennia germinans) at the landscape scale
Climate change is altering the frequency and intensity of extreme weather events. Quantifying ecosystem responses to extreme events at the landscape scale is critical for understanding and responding to climate-driven change but is constrained by limited data availability. Here, we integrated remote sensing with ground-based observations to quantify landscape-scale vegetation damage from an extrem
Authors
Melinda Martinez, Michael Osland, James B. Grace, Nicholas Enwright, Camille Stagg, Simen Kaalstad, Gordon Anderson, Anna R. Armitage, Just Cebrian, Karen L. Cummins, Richard Day, Donna J. Devlin, Kenneth H. Dunton, Laura Feher, Alejandro Fierro-Cabo, Elena A. Flores, Andrew From, A. Randall Hughes, David A. Kaplan, Amy K. Langston, Christopher J. Miller, Charles E. Proffitt, Nathan G.F. Reaver, Colt R. Sanspree, Caitlin M. Snyder, Andrew P. Stetter, Kathleen M. Swanson, Jamie E. Thompson, Carlos Zamora-Tovar
Rapidly changing range limits in a warming world: Critical data limitations and knowledge gaps for advancing understanding of mangrove range dynamics in the southeastern USA
Climate change is altering species’ range limits and transforming ecosystems. For example, warming temperatures are leading to the range expansion of tropical, cold-sensitive species at the expense of their cold-tolerant counterparts. In some temperate and subtropical coastal wetlands, warming winters are enabling mangrove forest encroachment into salt marsh, which is a major regime shift that has
Authors
Rémi Bardou, Michael Osland, Steven B. Scyphers, Christine C. Shepard, Karen E. Aerni, Jahson B. Alemu, Robert Crimian, Richard Day, Nicholas Enwright, Laura Feher, Sarah L. Gibbs, Kiera O'Donnell, Savannah H. Swinea, Kalaina Thorne, Sarit Truskey, Anna R. Armitage, Ronald J. Baker, Joshua L. Breithaupt, Kyle C. Cavanaugh, Just Cebrian, Karen Cummins, Donna J. Devlin, Jacob Doty, William L. Ellis, Ilka C. Feller, Christopher A. Gabler, Yiyang Kang, David A. Kaplan, John Paul Kennedy, Ken Krauss, Margaret Lamont, Kam-biu Liu, Melinda Martinez, Ashley M. Matheny, Giovanna M. McClenachan, Karen L. McKee, Irving A. Mendelssohn, Thomas C. Michot, Christopher J. Miller, Jena A. Moon, Ryan P. Moyer, James A. Nelson, Richard O'Connor, James W. Pahl, Jonathan L. Pitchford, C. Edward Proffitt, Tracy Quirk, Kara R. Radabaugh, Whitney A. Scheffel, Delbert L. Smee, Caitlin M. Snyder, Eric Sparks, Kathleen M. Swanson, William C. Vervaeke, Carolyn A. Weaver, Jonathan A Willis, Erik S. Yando, Qiang Yao, A. Randall Hughes
Hydrologic connectivity and residence time affect the sediment trapping efficiency and dissolved oxygen concentrations of the Atchafalaya River Basin
Little is known about water movement, volume, or residence time (RT), and how those characteristics affect sediment trapping efficiency (TE) and dissolved oxygen concentrations (DO) in the United States' largest remaining bottomland hardwood swamp, the Atchafalaya River Basin. To better understand these dynamics, this study used bathymetry, lidar, and stage records to determine volumes in the Basi
Authors
Daniel Kroes, Richard Day, Michael D. Kaller, Charles R. Demas, William E. Kelso, Tiffany Pasco, Raynie Harlan, Steven Roberts