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The analyses of landscape change presented in this dataset use Landsat Thematic Mapper (TM), Enhanced Thematic Mapper (ETM) and Operational Land Imager (OLI) to assess changes in land area through time. All cloud-free dates of imagery from 1984 through early 2016 were used in this analysis. This amounted to a total of 174 dates of imagery which were analyzed. No water level restrictions were used during the image selection process as gages with a period of record sufficient for this analysis are not available nearby. Persistent loss and gain data are presented for 1984-2016.
Categories: Data;
Types: Citation;
Tags: Cat Island,
Horn Island,
Mississippi,
Petit Bois Island,
Ship Island,
MethodsStudy area: Our initial study area included the entire globe. We began with a seamless grid of cells with a resolution of 0.5 degrees (i.e., ~50 km at the equator). Next, we created polylines representing coastlines using SRTM (Shuttle Radar Topographic Mission) v4.1 global digital elevation model data at a resolution of 250 m (Reuter et al. 2007). We used these coastline polylines to identify and retain cells that intersected the coast. We excluded 192,227 cells that did not intersect the coast. To avoid cells with minimal potential coastal wetland habitat, we used the coastline data to remove an additional 1,056 coastal cells that contained less than or equal to 5% coverage of land. We also removed 176...
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Climate change,
USGS Science Data Catalog (SDC),
abundance,
climate gradients,
climatic drivers,
We measured foliar δ13C of Conocarpus erectus collected from Big Pine Key in 2018 as a proxy for ground water salinity.
Categories: Data;
Tags: Big Pine Key, Florida,
Ecology,
Everglades National Park,
Forestry,
Hardwood hammock,
Data to support the site characterization of locations sampled along the continental shelf and slope of the western U.S. coast off Washington, Oregon and California during the EXPRESS RL1905 expedition in 2019. Data consisted of tissue samples from fauna, sediments and particulate organic matter. These samples were analyzed for stable carbon and nitrogen isotopes to examine food web ecology. Additional observational data were collected through video analyses with efforts focused on documenting counts of fauna other than corals, sponges and fishes, as well as general habitat characteristics.
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 for monitoring. The CRMS program includes a suite of approximately 390 sites that encompass the range of hydrological and ecological conditions for each stratum. As part of CRMS, land and water classifications are created from Wetland restoration efforts conducted by the Coastal Wetlands Planning, Protection, and Restoration Act (CWPPRA)...
A Solinist water logger was used to collect water data at the Crawford Tract section of the Cache River Watershed in Illinois from June 22nd to November 29th of 2021. This data included temperature, pressure, and depth.
Data to support carbon (C) budget assessment of tidal freshwater forested wetland and oligohaline marsh ecosystems along the Waccamaw and Savannah rivers, U.S.A. This work represents the first estimates of C standing stocks, C mass balance, soil C burial, and lateral C export to aquatic environments in tidal freshwater forested wetlands undergoing transition to oligohaline marsh. First release: 2018 Revised: May 2019 (ver. 2.0)
Categories: Data,
Data Release - Revised;
Tags: Ecology,
Georgia,
Savannah River,
South Carolina,
USGS Science Data Catalog (SDC),
From 2004 to 2006, we used a variety of sampling techniques to survey the amphibians of Savannah National Wildlife Refuge (SNWR), a large protected area straddling the lower portions of the Savannah River on the border between South Carolina and Georgia, USA. We documented 22 amphibian species, 15 frogs and 7 salamanders, with a possible 23rd species present. Amphibians occupied a variety of habitats and appeared tolerant of the mildly acidic and low oxygen conditions of many of the wetlands. This initial survey provides a historic baseline for monitoring amphibian populations as areas adjacent to the refuge.
Categories: Data;
Tags: Amphibians,
Aquatic Biology,
Ecology,
Savannah National Wildlife Refuge,
USGS ARMI,
We generated multilocus DNA sequence data and traditional morphometric measurements to evaluate species boundaries in Fusconaia mitchelli. We sequenced three loci: the protein-coding mitochondrial DNA genes cytochrome oxidase subunit 1 and NADH dehydrogenase 1, and the nuclear ribosomal internal transcribed spacer 1. We also took three measurements, maximum length, maximum width, and maximum height, of mussel shells for morphometric analysis.
The endangered Cape Sable seaside sparrow (Ammospiza maritima mirabilis; CSSS) occurs in marl prairie habitat at the southern end of the Everglades, at the southernmost part of the Florida peninsula. The locations of three of its six subpopulations are proximate to the coast, putting them at risk for inundation caused by sea level rise (SLR). The spatially explicit predictive model EverSparrow provides probability of CSSS presence estimates based on hydrology, fire history, and vegetation. We developed two hydrologic scenarios of SLR using projections from the U.S. Army Corps of Engineers (USACE) and University of Florida's GeoPlan Center, using a modeled restoration scenario of the current landscape-scale water...
Categories: Data;
Types: NetCDF OPeNDAP Service;
Tags: Ecology,
Everglades,
Everglades National Park,
Florida,
Southern Florida,
This dataset provides information on plant sexual reproduction of a clonally-spreading perennial species, Spartina alterniflora. We investigated flowering phenology, potential seed and seedling production, and flower damage in reference and restored sites in southeastern Louisiana. Additional covariates of elevation and soil parameters were used to investigate underlying mechanisms of differences.
We characterized coastal wetland responses to flooding stress by measuring vegetation cover, wetland elevation and water elevation in healthy and degrading wetlands dominated by Spartina patens. Wetland elevation was measured using real-time kinematic survey methods. Vegetation cover was determined by visual estimation methods, and water elevation was measured using in situ continuous recorders. In addition to these local-scale responses, we also measured landscape-scale patterns of land and water aggregation or fragmentation using remotely sensed data (Jones et al., 2018). Associated products: Jones, W.R., Hartley, S.B., Stagg, C.L., and Osland, M.J. 2018. Land-water classification for selected sites in McFaddin...
Categories: Data;
Tags: Grand Chenier,
Land Use Change,
Texas,
USGS Science Data Catalog (SDC),
aggregation,
Hurricane Sandy directly hit the Atlantic shoreline of New Jersey during several astronomical high tide cycles in late October, 2012. The eastern seaboard areas are subject to sea level rise and increased severity and frequency of storm events, prompting habitat and land use planning changes. Wetland Aquatic Research Center (WARC) has conducted detailed mapping of marine and estuarine wetlands and deepwater habitats, including beaches and tide flats, and upland land use/land cover, using specially-acquired aerial imagery flown at 1-meter resolution.These efforts will assist the U.S. Fish and Wildlife Service (USFWS) continuing endeavors to map the barrier islands adhering to Coastal Barrier Resources Act (CBRA)...
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 arresting coastal wetlands loss. This data set includes mosaicked aerial photographs for the Fritchie Marsh Restoration (PO-06) project for 2016. This data is used as a basemap land-water classification. It also serves as a visual tool for project managers to help them identify any obvious problems or land loss within their project...
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: CWPPRA,
Geomorphology,
Gulf of Mexico,
Land Use Change,
Louisiana,
Sawgrass (Cladium jamaicense) samples were collected from marshes on five different keys (Big Pine, Torch, Ramrod, Cudjoe, and Sugarloaf Keys) within National Key Deer Refuge in January and June of 2015 and analyzed for contamination by the mosquito control insecticide permethrin. Permethrin was detected on 17 of 57 samples collected in January while it was detected on 40 of 56 samples collected in June. The concentrations on samples collected in January (below detection to 16 ng/g ww) were lower than concentrations on samples collected in June (below detection to 57.7 ng/g).
Here we provide public access to three DNA sequence alignments (COI, ND1, ITS1) and details on all specimens utilized in Keogh et al. (in review).
Data provided are the volumes of cypress cones, collected in the North American Baldcypress Swamp Network along the Mississippi River Alluvial Valley (southern Illinois to southern Louisiana, and Gulf of Mexico, east Texas to west Florida Panhandle, 2007 - 2019.
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 to arresting coastal wetlands loss. This data set includes mosaicked aerial photographs for the Lake Hermitage Marsh Creation– NRDA Early Restoration project for 2018 and 2020. This data is used as a basemap land-water classification. It also serves as a visual tool for project managers to help them identify any obvious problems or...
Ecological models facilitate evaluation and assessment of alternative approaches to restore the Greater Everglades ecosystem. However, the provision of useful and accessible models is a challenge because there is often a disconnect between model output and its use by decision makers. Joint Ecosystem Modeling (JEM) meets this challenge by providing ecological model output tailored to management decisions. JEM is a partnership among Federal and state agencies, universities, and other organizations. Ecological models (i.e., ecological planning tools) were used by the multi-agency REstoration, COordination and VERification (RECOVER) science team during the Central Everglades Planning Project (CEPP) and Interim Goals...
Red lionfish (Pterois volitans) have become a successful invasive predator across the Northwestern Atlantic, Caribbean, and Gulf of Mexico (GoM). Previous investigations have identified the southeast coast of Florida as the original site of introduction, but no region-wide genetic study has directly addressed the question of introduction location(s). This dataset includes previously unpublished red lionfish samples (n = 237) from six locations: The Bahamas, Florida Keys, Northwest Florida, North Carolina, Panama, and Southeast Florida. Sequences archived in NCBI from other locations in the Northern Region, Caribbean, and Gulf of Mexico basins were used in the analyses (N = 1558). Previously published sequences were...
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