Jason Dugas
Jason Dugas is a Geographer at the USGS Wetland and Aquatic Research Center. His duties include remote sensing and GIS analysis of Louisiana and Northern Gulf Coast's coastal wetland habitats. Projects include the mapping of National Parks and Wildlife Reserves, historical Civil War battlefield sites along with various historical land change analyses and wetland habitat mapping.
Science and Products
Mapping Fort A.P. Hill Military Training Center’s Vast Wetlands
Mapping of Fort A.P Hill utilizes 2-D interpretation of 2013, 1-foot Color Infrared orthorectified imagery, affording greater detail in wetland interpretation and classification.
Filter Total Items: 104
Seagrass map, Cat Island, Mississippi, 2023 Seagrass map, Cat Island, Mississippi, 2023
This product depicts the spatial coverage of seagrass beds from 0.5-m color-infrared orthoimagery for Cat Island, Mississippi from early fall of 2023. Specifically, the map includes presence and absence of seagrass beds within a potential seagrass extent that was based on topobathymetric data. A minimum mapping unit of 4 square meters was used for this mapping effort. We did not have...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, East Chenier Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, East Chenier Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Acadiana Bays Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Acadiana Bays Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Early Lafourche Delta Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Early Lafourche Delta Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, West Chenier Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, West Chenier Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Cameron-Creole Watershed Grand Bayou Marsh Creation (CS-54): 2021 land-water classification Cameron-Creole Watershed Grand Bayou Marsh Creation (CS-54): 2021 land-water classification
The Louisiana State Legislature created the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...
Seagrass map, Ship Island, Mississippi, 2021 (ver. 1.1, September 2025) Seagrass map, Ship Island, Mississippi, 2021 (ver. 1.1, September 2025)
This product depicts the spatial coverage of seagrass beds from 0.5-m color-infrared orthoimagery for Ship Island, Mississippi from early fall of 2021. Specifically, the map includes presence and absence of seagrass beds within a potential seagrass extent that was based on topobathymetric data. A minimum mapping unit of 4 square meters was used for this mapping effort. First release: May...
East Sabine Lake Hydrologic Restoration (CS-32): 2021 land-water classification East Sabine Lake Hydrologic Restoration (CS-32): 2021 land-water classification
The Louisiana State Legislature created Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...
Sabine Refuge Marsh Creation (CS-28): 2021 land-water classification Sabine Refuge Marsh Creation (CS-28): 2021 land-water classification
The Louisiana State Legislature created the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...
Large-Scale Marsh Creation Project – Upper Barataria Component (BA-0207): 2021 land-water classification Large-Scale Marsh Creation Project – Upper Barataria Component (BA-0207): 2021 land-water classification
The Louisiana Coastal Protection and Restoration Authority and the Natural Resource Damage Assessment (NRDA) develop restoration plans in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions...
Caernarvon Freshwater Diversion (BS-0008): 1998 land-water classification Caernarvon Freshwater Diversion (BS-0008): 1998 land-water classification
The Louisiana Coastal Protection and Restoration Authority develop restoration plans in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to arresting coastal wetlands loss. This data set...
Davis Pond Freshwater Diversion (BA-0001): 1998 pre-construction land-water classification of the BA-0001 Ponding Area Davis Pond Freshwater Diversion (BA-0001): 1998 pre-construction land-water classification of the BA-0001 Ponding Area
The Louisiana Coastal Protection and Restoration Authority develop restoration plans in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to arresting coastal wetlands loss. This data set...
Mapping habitats and shorelines pre-, during, and post-restoration on Caminada Headland and Whiskey Island, Louisiana, 2012–2020 Mapping habitats and shorelines pre-, during, and post-restoration on Caminada Headland and Whiskey Island, Louisiana, 2012–2020
Barrier islands and headlands provide ecological services that are integral to economic and environmental interests. Adaptive management may help in ensuring their resilience and the continued provision of ecosystems goods and services over time. The dynamic nature of these environments makes evaluating the impacts from restoration and extreme events an important part of adaptively...
Authors
Hana R. Thurman, Nicholas Enwright, Wyatt Cheney, Jason Dugas, Darin Lee, William Jones
Characterization of vegetated and ponded wetlands with implications towards coastal wetland marsh collapse Characterization of vegetated and ponded wetlands with implications towards coastal wetland marsh collapse
Coastal wetlands provide numerous ecosystem services; yet these ecosystems are increasingly vulnerable to climate change stressors, especially excessive flooding from sea-level rise and storm events. This study highlights the important contribution of vegetation belowground biomass to marsh stability and identifies loss of vegetation as a critical driver of marsh collapse. We...
Authors
Jack Cadigan, Navid H. Jafari, Camille Stagg, Claudia Laurenzano, Brian Harris, Amina Meselhe, Jason Dugas, Brady Couvillion
Louisiana Barrier Island Comprehensive Monitoring Program: Mapping habitats in beach, dune, and intertidal environments along the Louisiana Gulf of Mexico shoreline, 2008 and 2015–16 Louisiana Barrier Island Comprehensive Monitoring Program: Mapping habitats in beach, dune, and intertidal environments along the Louisiana Gulf of Mexico shoreline, 2008 and 2015–16
Barrier islands, headlands, and coastal shorelines provide numerous valuable ecosystem goods and services, including storm protection and erosion control for the mainland, habitat for fish and wildlife, salinity regulation in estuaries, carbon sequestration in marshes, and areas for recreation and tourism. These coastal features are dynamic environments because of their position at the...
Authors
Nicholas M. Enwright, William SooHoo, Jason L. Dugas, Craig P. Conzelmann, Claudia Laurenzano, Darin Lee, Kelly Mouton, Spencer Stelly
Mangrove expansion and contraction at a poleward range limit: Climate extremes and land-ocean temperature gradients Mangrove expansion and contraction at a poleward range limit: Climate extremes and land-ocean temperature gradients
Within the context of climate change, there is a pressing need to better understand the ecological implications of changes in the frequency and intensity of climate extremes. Along subtropical coasts, less frequent and warmer freeze events are expected to permit freeze-sensitive mangrove forests to expand poleward and displace freeze-tolerant salt marshes. Here, our aim was to better...
Authors
Michael Osland, Richard Day, Courtney T. Hall, Marisa Brumfield, Jason Dugas, William Jones
Hurricane Mitch: mapping coastal habitats Hurricane Mitch: mapping coastal habitats
No abstract available.
Authors
Lawrence Handley, Jesse Thibodeaux, Jason Dugas, Kelly Mouton, Bryan Haviland
Science and Products
Mapping Fort A.P. Hill Military Training Center’s Vast Wetlands
Mapping of Fort A.P Hill utilizes 2-D interpretation of 2013, 1-foot Color Infrared orthorectified imagery, affording greater detail in wetland interpretation and classification.
Filter Total Items: 104
Seagrass map, Cat Island, Mississippi, 2023 Seagrass map, Cat Island, Mississippi, 2023
This product depicts the spatial coverage of seagrass beds from 0.5-m color-infrared orthoimagery for Cat Island, Mississippi from early fall of 2023. Specifically, the map includes presence and absence of seagrass beds within a potential seagrass extent that was based on topobathymetric data. A minimum mapping unit of 4 square meters was used for this mapping effort. We did not have...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, East Chenier Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, East Chenier Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Acadiana Bays Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Acadiana Bays Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Early Lafourche Delta Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Early Lafourche Delta Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, West Chenier Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, West Chenier Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Cameron-Creole Watershed Grand Bayou Marsh Creation (CS-54): 2021 land-water classification Cameron-Creole Watershed Grand Bayou Marsh Creation (CS-54): 2021 land-water classification
The Louisiana State Legislature created the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...
Seagrass map, Ship Island, Mississippi, 2021 (ver. 1.1, September 2025) Seagrass map, Ship Island, Mississippi, 2021 (ver. 1.1, September 2025)
This product depicts the spatial coverage of seagrass beds from 0.5-m color-infrared orthoimagery for Ship Island, Mississippi from early fall of 2021. Specifically, the map includes presence and absence of seagrass beds within a potential seagrass extent that was based on topobathymetric data. A minimum mapping unit of 4 square meters was used for this mapping effort. First release: May...
East Sabine Lake Hydrologic Restoration (CS-32): 2021 land-water classification East Sabine Lake Hydrologic Restoration (CS-32): 2021 land-water classification
The Louisiana State Legislature created Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...
Sabine Refuge Marsh Creation (CS-28): 2021 land-water classification Sabine Refuge Marsh Creation (CS-28): 2021 land-water classification
The Louisiana State Legislature created the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...
Large-Scale Marsh Creation Project – Upper Barataria Component (BA-0207): 2021 land-water classification Large-Scale Marsh Creation Project – Upper Barataria Component (BA-0207): 2021 land-water classification
The Louisiana Coastal Protection and Restoration Authority and the Natural Resource Damage Assessment (NRDA) develop restoration plans in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions...
Caernarvon Freshwater Diversion (BS-0008): 1998 land-water classification Caernarvon Freshwater Diversion (BS-0008): 1998 land-water classification
The Louisiana Coastal Protection and Restoration Authority develop restoration plans in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to arresting coastal wetlands loss. This data set...
Davis Pond Freshwater Diversion (BA-0001): 1998 pre-construction land-water classification of the BA-0001 Ponding Area Davis Pond Freshwater Diversion (BA-0001): 1998 pre-construction land-water classification of the BA-0001 Ponding Area
The Louisiana Coastal Protection and Restoration Authority develop restoration plans in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to arresting coastal wetlands loss. This data set...
Mapping habitats and shorelines pre-, during, and post-restoration on Caminada Headland and Whiskey Island, Louisiana, 2012–2020 Mapping habitats and shorelines pre-, during, and post-restoration on Caminada Headland and Whiskey Island, Louisiana, 2012–2020
Barrier islands and headlands provide ecological services that are integral to economic and environmental interests. Adaptive management may help in ensuring their resilience and the continued provision of ecosystems goods and services over time. The dynamic nature of these environments makes evaluating the impacts from restoration and extreme events an important part of adaptively...
Authors
Hana R. Thurman, Nicholas Enwright, Wyatt Cheney, Jason Dugas, Darin Lee, William Jones
Characterization of vegetated and ponded wetlands with implications towards coastal wetland marsh collapse Characterization of vegetated and ponded wetlands with implications towards coastal wetland marsh collapse
Coastal wetlands provide numerous ecosystem services; yet these ecosystems are increasingly vulnerable to climate change stressors, especially excessive flooding from sea-level rise and storm events. This study highlights the important contribution of vegetation belowground biomass to marsh stability and identifies loss of vegetation as a critical driver of marsh collapse. We...
Authors
Jack Cadigan, Navid H. Jafari, Camille Stagg, Claudia Laurenzano, Brian Harris, Amina Meselhe, Jason Dugas, Brady Couvillion
Louisiana Barrier Island Comprehensive Monitoring Program: Mapping habitats in beach, dune, and intertidal environments along the Louisiana Gulf of Mexico shoreline, 2008 and 2015–16 Louisiana Barrier Island Comprehensive Monitoring Program: Mapping habitats in beach, dune, and intertidal environments along the Louisiana Gulf of Mexico shoreline, 2008 and 2015–16
Barrier islands, headlands, and coastal shorelines provide numerous valuable ecosystem goods and services, including storm protection and erosion control for the mainland, habitat for fish and wildlife, salinity regulation in estuaries, carbon sequestration in marshes, and areas for recreation and tourism. These coastal features are dynamic environments because of their position at the...
Authors
Nicholas M. Enwright, William SooHoo, Jason L. Dugas, Craig P. Conzelmann, Claudia Laurenzano, Darin Lee, Kelly Mouton, Spencer Stelly
Mangrove expansion and contraction at a poleward range limit: Climate extremes and land-ocean temperature gradients Mangrove expansion and contraction at a poleward range limit: Climate extremes and land-ocean temperature gradients
Within the context of climate change, there is a pressing need to better understand the ecological implications of changes in the frequency and intensity of climate extremes. Along subtropical coasts, less frequent and warmer freeze events are expected to permit freeze-sensitive mangrove forests to expand poleward and displace freeze-tolerant salt marshes. Here, our aim was to better...
Authors
Michael Osland, Richard Day, Courtney T. Hall, Marisa Brumfield, Jason Dugas, William Jones
Hurricane Mitch: mapping coastal habitats Hurricane Mitch: mapping coastal habitats
No abstract available.
Authors
Lawrence Handley, Jesse Thibodeaux, Jason Dugas, Kelly Mouton, Bryan Haviland