Rachel Villani (Former Employee)
Science and Products
Vegetation cover and surface elevation data in restored wetlands at the J.D. Murphree Wildlife Management Area, Texas, 2024 Vegetation cover and surface elevation data in restored wetlands at the J.D. Murphree Wildlife Management Area, Texas, 2024
Vegetation cover and surface elevation data were collected in restored marshes at the J.D. Murphree Wildlife Management Area in Texas, USA. Data were collected in late April and early May of 2024. Data were collected in 0.25 m² plots strategically placed along habitat transition zones between cover classes. Cover classes, listed from lowest to highest mean surface elevation, included...
Carbon and Nitrogen content of above- and belowground biomass across a coastal wetland salinity gradient in Louisiana, U.S.A. (2013-2014) Carbon and Nitrogen content of above- and belowground biomass across a coastal wetland salinity gradient in Louisiana, U.S.A. (2013-2014)
Percent total carbon (%TC) and percent total nitrogen (%TN) content of above- and belowground biomass were measured from mixed-species plots in four different wetland types in Coastal Louisiana in July 2013 and July–August 2014 (Stagg et al. 2017). Reference: Stagg, C.L., Schoolmaster, D.R., Piazza, S.C., Snedden, G., Steyer, G.D., Fischenich, C.J., and McComas, R.W., 2017, Primary...
Plant, soil, and microbial characteristics of marsh collapse in Mississippi River Deltaic wetlands Plant, soil, and microbial characteristics of marsh collapse in Mississippi River Deltaic wetlands
Site, field, and soil data collected from 14 sites along a chronosequence of wetland submergence on 15 – 17 October 2019 in a Louisiana salt marsh in Barataria Basin, part of the Mississippi River Deltaic Plain, along the northern Gulf of Mexico coast.
Spatiotemporal dynamics of soil carbon following coastal wetland loss at a Louisiana coastal salt marsh in the Mississippi River Deltaic Plain in 2019 Spatiotemporal dynamics of soil carbon following coastal wetland loss at a Louisiana coastal salt marsh in the Mississippi River Deltaic Plain in 2019
This dataset provides the water content, bulk density, carbon concentrations, nitrogen concentrations, and carbon content of all fourteen cores sampled in coastal Louisiana (CRMS 0224) in October of 2019. Each sample is identified by a unique identifier that corresponds to each site by depth increment combination. The pond age range associated with each site is provided. The depth...
Vegetation Types in Coastal Louisiana in 2021 (ver. 2.0, April 2023) Vegetation Types in Coastal Louisiana in 2021 (ver. 2.0, April 2023)
Coastwide vegetation surveys have been conducted multiple times over the past 50 years (e.g. Chabreck and Linscombe 1968, 1978, 1988, 1997, 2001, and 2013) by the Louisiana Department of Wildlife and Fisheries (LDWF) in support of coastal management activities. The last survey was conducted in 2013 and was funded by the Louisiana Coastal Protection and Restoration Authority (CPRA) and...
Developing bare-earth digital elevation models from structure-from-motion data on barrier islands, Dauphin Island, AL, 2018-2019 Developing bare-earth digital elevation models from structure-from-motion data on barrier islands, Dauphin Island, AL, 2018-2019
This U.S. Geological Survey data release includes bare-earth digital elevation models (DEMs) that were produced by removing elevation bias in vegetated areas from structure-from-motion (SfM) data products for two sites on Dauphin Island, Alabama. These data were collected in the late fall of 2018 and spring of 2019. In addition to the bare-earth DEMs, this data release also includes...
Barrier island vegetation and elevation survey, Dauphin Island, AL, 2018-19 Barrier island vegetation and elevation survey, Dauphin Island, AL, 2018-19
Vegetation and elevation survey data were collected in 4-square-meter quadrats via Real-Time Kinematic GPS from September 9, 2018 to April 17, 2019 on Dauphin Island, AL. Vegetation data included total percent herbaceous cover, percent cover by plant species, and mean height of vegetation within the quadrat. The percent cover by species was used to determine the dominant species for the...
Louisiana's Coastwide Reference Monitoring System (CRMS) elevation data Louisiana's Coastwide Reference Monitoring System (CRMS) elevation data
Wetland restoration efforts conducted by the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in Louisiana rely on monitoring efforts to determine the efficacy of these efforts. The Coastwide Reference Monitoring System (CRMS) was developed to assist in a multiple-reference approach that uses aspects of hydrogeomorphic functional assessments and probabilistic sampling...
How high? Identifying elevation thresholds to guide coastal marsh restoration How high? Identifying elevation thresholds to guide coastal marsh restoration
Introduction Coastal marshes are highly valuable ecosystems facing threats from rising sea levels and intensifying storm events. To elevate marsh surfaces and prevent loss of ecosystem services, the beneficial use of dredged material (BUDM) is increasingly being implemented across the United States. Objectives The objective of this study was to aid decision-makers and restoration...
Authors
Emily N. Fromenthal, Camille L. Stagg, Jena A. Moon, Taylor Abshier, Omar Alawneh, Jack A. Cadigan, Daniel A. Gallegos, Brian D. Harris, Nia R. Hurst, Navid H. Jafari, Todd Merendino, Matthew R. Nelson, Michael J. Osland, Philip Pauling, Michael Rezsutek, Colt R. Sanspree, Rachel Katherine Villani
Beginner’s guide to understanding, accessing, and retrieving Coastwide Reference Monitoring System data Beginner’s guide to understanding, accessing, and retrieving Coastwide Reference Monitoring System data
No abstract available.
Authors
Lauren Angelle Leonpacher, Rachel Katherine Villani, Kari Cretini, Christina B. Hunnicutt, Susan Testroet-Bergeron, Dona Weifenbach, Cole B Ruckstuhl, Sarai Piazza
Vegetation loss following vertical drowning of Mississippi River deltaic wetlands leads to faster microbial decomposition and decreases in soil carbon Vegetation loss following vertical drowning of Mississippi River deltaic wetlands leads to faster microbial decomposition and decreases in soil carbon
Wetland ecosystems hold nearly a third of the global soil carbon pool, but as wetlands rapidly disappear the fate of this stored soil carbon is unclear. The aim of this study was to quantify and then link potential rates of microbial decomposition after vertical drowning of vegetated tidal marshes in coastal Louisiana to known drivers of anaerobic decomposition altered by vegetation loss...
Authors
Courtney Creamer, Mark Waldrop, Camille Stagg, Kristen L. Manies, Melissa Millman Baustian, Claudia Laurenzano, Tiong Gim Aw, Monica Haw, Sergio Merino, Donald R. Schoolmaster, Sabrina N. Sevilgen, Rachel Katherine Villani, Eric Ward
A model of the spatiotemporal dynamics of soil carbon following coastal wetland loss applied to a Louisiana salt marsh in the Mississippi River Deltaic Plain A model of the spatiotemporal dynamics of soil carbon following coastal wetland loss applied to a Louisiana salt marsh in the Mississippi River Deltaic Plain
The potential for carbon sequestration in coastal wetlands is high due to protection of carbon (C) in flooded soils. However, excessive flooding can result in the conversion of the vegetated wetland to open water. This transition results in the loss of wetland habitat in addition to the potential loss of soil carbon. Thus, in areas experiencing rapid wetland submergence, such as the...
Authors
Donald R. Schoolmaster, Camille Stagg, Courtney Creamer, Claudia Laurenzano, Eric Ward, Mark Waldrop, Melissa M. Baustian, Tiong Aw, Sergio Merino, Rachel Katherine Villani, Laura Scott
Science and Products
Vegetation cover and surface elevation data in restored wetlands at the J.D. Murphree Wildlife Management Area, Texas, 2024 Vegetation cover and surface elevation data in restored wetlands at the J.D. Murphree Wildlife Management Area, Texas, 2024
Vegetation cover and surface elevation data were collected in restored marshes at the J.D. Murphree Wildlife Management Area in Texas, USA. Data were collected in late April and early May of 2024. Data were collected in 0.25 m² plots strategically placed along habitat transition zones between cover classes. Cover classes, listed from lowest to highest mean surface elevation, included...
Carbon and Nitrogen content of above- and belowground biomass across a coastal wetland salinity gradient in Louisiana, U.S.A. (2013-2014) Carbon and Nitrogen content of above- and belowground biomass across a coastal wetland salinity gradient in Louisiana, U.S.A. (2013-2014)
Percent total carbon (%TC) and percent total nitrogen (%TN) content of above- and belowground biomass were measured from mixed-species plots in four different wetland types in Coastal Louisiana in July 2013 and July–August 2014 (Stagg et al. 2017). Reference: Stagg, C.L., Schoolmaster, D.R., Piazza, S.C., Snedden, G., Steyer, G.D., Fischenich, C.J., and McComas, R.W., 2017, Primary...
Plant, soil, and microbial characteristics of marsh collapse in Mississippi River Deltaic wetlands Plant, soil, and microbial characteristics of marsh collapse in Mississippi River Deltaic wetlands
Site, field, and soil data collected from 14 sites along a chronosequence of wetland submergence on 15 – 17 October 2019 in a Louisiana salt marsh in Barataria Basin, part of the Mississippi River Deltaic Plain, along the northern Gulf of Mexico coast.
Spatiotemporal dynamics of soil carbon following coastal wetland loss at a Louisiana coastal salt marsh in the Mississippi River Deltaic Plain in 2019 Spatiotemporal dynamics of soil carbon following coastal wetland loss at a Louisiana coastal salt marsh in the Mississippi River Deltaic Plain in 2019
This dataset provides the water content, bulk density, carbon concentrations, nitrogen concentrations, and carbon content of all fourteen cores sampled in coastal Louisiana (CRMS 0224) in October of 2019. Each sample is identified by a unique identifier that corresponds to each site by depth increment combination. The pond age range associated with each site is provided. The depth...
Vegetation Types in Coastal Louisiana in 2021 (ver. 2.0, April 2023) Vegetation Types in Coastal Louisiana in 2021 (ver. 2.0, April 2023)
Coastwide vegetation surveys have been conducted multiple times over the past 50 years (e.g. Chabreck and Linscombe 1968, 1978, 1988, 1997, 2001, and 2013) by the Louisiana Department of Wildlife and Fisheries (LDWF) in support of coastal management activities. The last survey was conducted in 2013 and was funded by the Louisiana Coastal Protection and Restoration Authority (CPRA) and...
Developing bare-earth digital elevation models from structure-from-motion data on barrier islands, Dauphin Island, AL, 2018-2019 Developing bare-earth digital elevation models from structure-from-motion data on barrier islands, Dauphin Island, AL, 2018-2019
This U.S. Geological Survey data release includes bare-earth digital elevation models (DEMs) that were produced by removing elevation bias in vegetated areas from structure-from-motion (SfM) data products for two sites on Dauphin Island, Alabama. These data were collected in the late fall of 2018 and spring of 2019. In addition to the bare-earth DEMs, this data release also includes...
Barrier island vegetation and elevation survey, Dauphin Island, AL, 2018-19 Barrier island vegetation and elevation survey, Dauphin Island, AL, 2018-19
Vegetation and elevation survey data were collected in 4-square-meter quadrats via Real-Time Kinematic GPS from September 9, 2018 to April 17, 2019 on Dauphin Island, AL. Vegetation data included total percent herbaceous cover, percent cover by plant species, and mean height of vegetation within the quadrat. The percent cover by species was used to determine the dominant species for the...
Louisiana's Coastwide Reference Monitoring System (CRMS) elevation data Louisiana's Coastwide Reference Monitoring System (CRMS) elevation data
Wetland restoration efforts conducted by the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in Louisiana rely on monitoring efforts to determine the efficacy of these efforts. The Coastwide Reference Monitoring System (CRMS) was developed to assist in a multiple-reference approach that uses aspects of hydrogeomorphic functional assessments and probabilistic sampling...
How high? Identifying elevation thresholds to guide coastal marsh restoration How high? Identifying elevation thresholds to guide coastal marsh restoration
Introduction Coastal marshes are highly valuable ecosystems facing threats from rising sea levels and intensifying storm events. To elevate marsh surfaces and prevent loss of ecosystem services, the beneficial use of dredged material (BUDM) is increasingly being implemented across the United States. Objectives The objective of this study was to aid decision-makers and restoration...
Authors
Emily N. Fromenthal, Camille L. Stagg, Jena A. Moon, Taylor Abshier, Omar Alawneh, Jack A. Cadigan, Daniel A. Gallegos, Brian D. Harris, Nia R. Hurst, Navid H. Jafari, Todd Merendino, Matthew R. Nelson, Michael J. Osland, Philip Pauling, Michael Rezsutek, Colt R. Sanspree, Rachel Katherine Villani
Beginner’s guide to understanding, accessing, and retrieving Coastwide Reference Monitoring System data Beginner’s guide to understanding, accessing, and retrieving Coastwide Reference Monitoring System data
No abstract available.
Authors
Lauren Angelle Leonpacher, Rachel Katherine Villani, Kari Cretini, Christina B. Hunnicutt, Susan Testroet-Bergeron, Dona Weifenbach, Cole B Ruckstuhl, Sarai Piazza
Vegetation loss following vertical drowning of Mississippi River deltaic wetlands leads to faster microbial decomposition and decreases in soil carbon Vegetation loss following vertical drowning of Mississippi River deltaic wetlands leads to faster microbial decomposition and decreases in soil carbon
Wetland ecosystems hold nearly a third of the global soil carbon pool, but as wetlands rapidly disappear the fate of this stored soil carbon is unclear. The aim of this study was to quantify and then link potential rates of microbial decomposition after vertical drowning of vegetated tidal marshes in coastal Louisiana to known drivers of anaerobic decomposition altered by vegetation loss...
Authors
Courtney Creamer, Mark Waldrop, Camille Stagg, Kristen L. Manies, Melissa Millman Baustian, Claudia Laurenzano, Tiong Gim Aw, Monica Haw, Sergio Merino, Donald R. Schoolmaster, Sabrina N. Sevilgen, Rachel Katherine Villani, Eric Ward
A model of the spatiotemporal dynamics of soil carbon following coastal wetland loss applied to a Louisiana salt marsh in the Mississippi River Deltaic Plain A model of the spatiotemporal dynamics of soil carbon following coastal wetland loss applied to a Louisiana salt marsh in the Mississippi River Deltaic Plain
The potential for carbon sequestration in coastal wetlands is high due to protection of carbon (C) in flooded soils. However, excessive flooding can result in the conversion of the vegetated wetland to open water. This transition results in the loss of wetland habitat in addition to the potential loss of soil carbon. Thus, in areas experiencing rapid wetland submergence, such as the...
Authors
Donald R. Schoolmaster, Camille Stagg, Courtney Creamer, Claudia Laurenzano, Eric Ward, Mark Waldrop, Melissa M. Baustian, Tiong Aw, Sergio Merino, Rachel Katherine Villani, Laura Scott