Filters: Tags: biota (X) > partyWithName: Western Ecological Research Center (X) > partyWithName: Karen M Thorne (X)

Filters Date Range Past year (2) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions ArcGIS Service Definition (5) Raster (2) Types ArcGIS REST Map Service (5) ArcGIS Service Definition (5) Downloadable (5) Map Service (5) Citation (2) GeoTIFF (2) Raster (2) Contacts Kevin J Buffington U.S. Geological Survey - ScienceBase Ecosystems U.S. Geological Survey, Western Ecological Research Center Jordan A Rosencranz More... Categories Data (15) Tag Types Theme (26) Place (26) USGS Scientific Topic Keyword (12) Harvest Set (15) Tag Schemes USGS Thesaurus (26) Common geographic areas (24) None (12) ISO 19115 Topic Category (26) Marine Realms Information Bank (MRIB) keywords (18) Coastal and Marine Ecological Classification Standard (8) Common Geograhic Areas (1) More... View Results as: JSON ATOM CSV

WARMER-2 Model Inputs for Three Tidal Wetland Sites Across San Francisco Bay Estuary Accurate input data are important for making site-specific projections of tidal wetlands into the future. We developed bias-corrected digital elevation models (DEM) using the LEAN approach (LiDAR Elevation Adjustment with NDVI). LEAN DEMs were used as the initial elevation for model projections. Further, we conducted elevation and vegetation surveys across each study site to characterize elevation profiles of dominant species, which were used to inform organic productivity functions in WARMER-2. Tags: Brackish Marsh, Browns Island, Emergent Tidal Marsh, Emergent Wetland, Petaluma marsh, All tags... Rush Ranch, San Francisco Bay Estuary, biota, climate change, digital elevation model, lidar, numerical modeling, sea-level change, wetland, Fewer tags Digital elevation model outputs from wetland accreting rate model of ecosystem resilience (WARMER) at ten year intervals from 2010-2110 Digital elevation model outputs from wetland accreting rate model of ecosystem resilience (WARMER) at ten year intervals from 2010-2110. Baseline elevations were collected with RTK GPS units and LiDAR elevations in non-surveyed areas were also corrected using LEAN method. Historical accretion rates were collected at each salt marsh and used to parameterize WARMER, predicting future elevations. These data support the following publication: Rosencranz JA, Thorne KM, Buffington KJ, et al. Sea‐level rise, habitat loss, and potential extirpation of a salt marsh specialist bird in urbanized landscapes. Ecol Evol. 2018;00:1–11. https://doi.org/10.1002/ece3.4196 Types: Citation; Tags: California, Carpinteria, Mugu Lagoon, Remote Sensing, Seal Beach National Wildlife Refuge, All tags... Sweetwater, Tijuana Estuary, USGS Science Data Catalog (SDC), Upper Newport Bay, biota, dynamic salt marsh accretion model, environment, marsh, salt marsh, wetland ecosystems, Fewer tags WARMER-2 Model Inputs and Projections for Three Tidal Wetland Sites Across San Francisco Bay Estuary Understanding the rates and patterns of tidal wetland elevation changes relative to sea-level is essential for understanding the extent of potential wetland loss over the coming years. Using an enhanced and more flexible modeling framework of an ecosystem model (WARMER-2), we explored sea-level rise (SLR) impacts on wetland elevations and carbon sequestration rates through 2100 by considering plant community transitions, salinity effects on productivity, and changes in sediment availability. We incorporated local experimental results for plant productivity relative to inundation and salinity into a species transition model, as well as site-level estimates of organic matter decomposition. The revised modeling framework... Tags: Botany, Brackish Marsh, Browns Island, Emergent Tidal Marsh, Emergent Wetland, All tags... Environmental Health, Petaluma marsh, Remote Sensing, Rush Ranch, San Francisco Bay Estuary, USGS Science Data Catalog (SDC), biota, climate change, digital elevation model, lidar, numerical modeling, sea-level change, wetland, Fewer tags LEAN-corrected San Francisco Bay Digital Elevation Model, 2018 Lidar-derived digital elevation models often contain a vertical bias due to vegetation. In areas with tidal influence the amount of bias can be ecologically significant, for example, by decreasing the expected inundation frequency. We generated a corrected digital elevation mode (DEM) for tidal marsh areas around San Francisco Bay using the Lidar Elevation Adjustment with NDVI (LEAN) technique (Buffington et al. 2016). Survey-grade GPS survey data (6614 points), NAIP-derived Normalized Difference Vegetation Index, and original 1 m lidar DEM from 2010 were used to generate a model of predicted bias across tidal marsh areas. The predicted bias was then subtracted from the original lidar DEM and merged with the NOAA... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, GeoTIFF, Map Service, Raster; Tags: Remote Sensing, San Francisco Bay, USGS Science Data Catalog (SDC), biota, digital elevation models, All tags... estuary, lidar, wetlands, Fewer tags Impounded and tidal wetland plant diversity and composition across spatial scales, San Francisco Bay-Delta, California, USA (2016-2018) These datasets provide information on plant alpha, beta, and gamma diversity, and plant species abundance at several spatial scales for tidal wetlands along a salinity gradient in the San Francisco Bay-Delta and an impounded brackish wetland complex in Suisun Marsh, California. Files include diversity metrics calculated at the patch, site, and region scales, average percent cover of wetland dominant plants at the patch scale, and average percent cover of all wetland plants at the site scale. These data support the following paper: Jones, S.F., Janousek, C.N., Casazza, M.L., Takekawa, J.Y. and Thorne, K.M., 2021. Seasonal impoundment alters patterns of tidal wetland plant diversity across spatial scales. Ecosphere,... Categories: Data; Tags: Botany, California, San Francisco Bay-Delta Estuary, USGS Science Data Catalog (SDC), biodiversity, All tags... biota, coastal ecosystems, community composition, ecology, wetland impoundment, Fewer tags LEAN-Corrected Collier County DEM for wetlands Lidar-derived digital elevation models often contain a vertical bias due to vegetation. In areas with tidal influence the amount of bias can be ecologically significant, for example, by decreasing the expected inundation frequency. We generated a corrected digital elevation model (DEM) for wetlands throughout Collier county using a modification of the Lidar Elevation Adjustment with NDVI (LEAN) technique (Buffington et al. 2016). GPS survey data (15,223 points), NAIP-derived Normalized Difference Vegetation Index (2010), a 10 m lidar DEM from 2007, and a 10 m canopy surface model were used to generate a model of predicted bias across marsh, mangrove, and cypress habitats. The predicted bias was then subtracted from... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, GeoTIFF, Map Service, Raster; Tags: Collier county, Remote Sensing, USGS Science Data Catalog (SDC), biota, cypress, All tags... digital elevation models, estuary, lidar, mangroves, marsh, wetlands, Fewer tags Tidal Wetland Habitat Projections with Sea-level Rise Across Sites in the San Francisco Bay Estuary (2020-2100) Habitat projections from the WARMER-2 model for four tidal wetland sites in San Francisco Bay estuary under the constant sediment scenario, plus 0.2 ppt per decade salinity scenario, and the community transition organic productivity function under a 99 cm by 2100 sea-level rise scenario. Results are the average from one hundred Monte Carlo simulations. Tags: Brackish Marsh, Emergent Tidal Marsh, Emergent Wetland, San Francisco Bay, biota, All tags... climate change, numerical modeling, sea-level change, wetland, Fewer tags Data Describing Site Characteristics Including Conifer Regeneration Following the 2018 Carr Fire in Whiskeytown National Recreation Area This dataset provides seedling density and site characteristics for 131 plots in Whiskeytown National Recreation Area in California, USA. Site characteristics include modeled seed availability and terrain indices calculated using a 1 meter resolution digital elevation model (DEM). Categories: Data; Tags: California, Ecology, Forestry, Remote Sensing, USGS Science Data Catalog (SDC), All tags... Whiskeytown-Shasta-Trinity National Recreation Area, animal and plant census, biota, environment, forest ecosystems, Fewer tags Seal Beach salt marsh digital elevation model output, sea-level rise scenarios, 2010-2110 Digital elevation model outputs from wetland accreting rate model of ecosystem resilience (WARMER) at ten year intervals from 2010-2110. Baseline elevations were collected with RTK GPS units and LiDAR elevations in non-surveyed areas were also corrected using LEAN method. Historical accretion rates were collected at each salt marsh and used to parameterize WARMER, predicting future elevations. Tags: California, Seal Beach, biota, dynamic salt marsh accretion model, environment, All tags... marsh, salt marsh, wetland ecosystems, Fewer tags Small Mammal Surveys from Northern San Francisco Bay: 1998-2014 This datasets summarizes small mammal trapping efforts that USGS San Francisco Bay Estuary Field Station has led, co-led, or supervised, to detect and monitor the endangered salt marsh harvest mouse (Reithrodontomys raviventris) in the northern reaches of San Francisco Bay from 1998-2014. As the salt marsh harvest mouse is listed as endangered under the Endangered Species Act, sensitive location information can be made available upon request by contacting the dataset point of contact. These data support the following publication: Marcot, B.G., Woo, I., Thorne, K.M., Freeman, C.M., and Guntenspergen, G.R., 2020. Habitat of the endangered salt marsh harvest mouse (Reithrodontomys raviventris) in San Francisco Bay.... Categories: Data; Tags: San Francisco Bay, San Pablo Bay, USGS Science Data Catalog (SDC), Wildlife Biology, biota, All tags... capturing (animals), endangered species, habitat use, habitats, mammals, small mammal assemblage, vegetation, wildlife, Fewer tags Blackwater LEAN-Corrected Chesapeake Bay Digital Elevation Models, 2019 Lidar-derived digital elevation models often contain a vertical bias due to vegetation. In areas with tidal influence the amount of bias can be ecologically significant, for example, by decreasing the expected inundation frequency. We generated a corrected digital elevation model (DEM) for the area surrounding Blackwater National Wildlife Refuge in Chesapeake Bay using a modification of the Lidar Elevation Adjustment with NDVI (LEAN) technique (Buffington et al. 2016). GPS survey data (3699 points, collected across four tidal marsh sites in Chesapeake Bay (Eastern Neck, Martin, Bishops Head, and Blackwater) in 2010 and 2017. Normalized Difference Vegetation Index (NDVI) derived from an airborne multispectral image... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Chesapeake Bay, biota, digital elevation models, estuary, lidar, All tags... wetlands, Fewer tags San Francisco Bay Tidal Marsh Avian Predator Surveys, 2010 This dataset contains avian survey observations across four tidal marsh areas around San Francisco Bay. Multiple surveys were conducted around both high and low tides during the winter of 2010/11. Each survey alternated between scan and focals. During scans, all observable birds were counted. During focals, the behavior of a single, randomly selected bird was observed. Water level data was collected concurrently at each site and is provided with the avian survey data. These data support the following publication: Thorne, K.M., Spragens, K.A., Buffington, K.J., Rosencranz, J.A. and Takekawa, J., 2019. Flooding regimes increase avian predation on wildlife prey in tidal marsh ecosystems. Ecology and evolution, 9(3),... Categories: Data; Tags: Ecology, Emergent Tidal Marsh, Petaluma River, San Francisco Bay, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, biota, birds, carnivores, flooding, sea-level change, Fewer tags Newport salt marsh digital elevation model output, sea-level rise scenarios, 2010-2110 Digital elevation model outputs from wetland accreting rate model of ecosystem resilience (WARMER) at ten year intervals from 2010-2110. Baseline elevations were collected with RTK GPS units and LiDAR elevations in non-surveyed areas were also corrected using LEAN method. Historical accretion rates were collected at each salt marsh and used to parameterize WARMER, predicting future elevations. Tags: California, Newport, biota, dynamic salt marsh accretion model, environment, All tags... marsh, salt marsh, wetland ecosystems, Fewer tags Sediment Deposition and Accretion Data from a Tidal Salt Marsh in South San Francisco Bay, California 2021-2022 The U.S. Geological Survey, Western Ecological Research Center collected sediment and accretion data at a wave-exposed tidal salt marsh in South San Francisco Bay, California. Sediment traps and feldspar marker horizons (MH) were deployed along transects of increasing distance from the sediment source, at primary, secondary and tertiary marsh channels/bay. Data were collected bi-monthly over two month periods in summer 2021 and winter 2021/2022. Included here are trap and MH plot locations, calculated sediment fluxes at each station by deployment period, annual accretion rates, and covariates associated with sediment deposition and accretion including vegetation structure and elevation. This project aimed to assess... Categories: Data; Tags: Ecology, Eden Landing Ecological Reserve, High Salt Marsh, Land Use Change, San Francisco Bay, All tags... Sedimentology, USGS Science Data Catalog (SDC), accretion, biota, blue carbon, carbon, sea-level change, sediment transport, surface deposition, wetland ecosystems, Fewer tags Soil, Plant, and Elevation Characteristics of Tidal and Managed Impounded Wetlands in Suisun Marsh, California, USA (2018-2019) These datasets provide information on soil properties, plant species cover, and soil surface elevation in a tidal wetland and a managed impounded wetland in northern Suisun Marsh, California, USA. These data support the following publication: Jones, S.F., Schutte, C.A., Roberts, B.J. and Thorne, K.M., 2022. Seasonal impoundment management reduces nitrogen cycling but not resilience to surface fire in a tidal wetland. Journal of environmental management, 303, p.114153. https://doi.org/10.1016/j.jenvman.2021.114153. Categories: Data; Tags: Antioch Dunes, Botany, California, Soil Sciences, USGS Science Data Catalog (SDC), All tags... biota, coastal ecosystems, ecology, fire, nitrogen cycling, water management, Fewer tags Mugu salt marsh digital elevation model output, sea-level rise scenarios, 2010-2110 Digital elevation model outputs from wetland accreting rate model of ecosystem resilience (WARMER) at ten year intervals from 2010-2110. Baseline elevations were collected with RTK GPS units and LiDAR elevations in non-surveyed areas were also corrected using LEAN method. Historical accretion rates were collected at each salt marsh and used to parameterize WARMER, predicting future elevations. Tags: California, Mugu, biota, dynamic salt marsh accretion model, environment, All tags... marsh, salt marsh, wetland ecosystems, Fewer tags Carpinteria salt marsh digital elevation model output, sea-level rise scenarios, 2010-2110 Digital elevation model outputs from wetland accreting rate model of ecosystem resilience (WARMER) at ten year intervals from 2010-2110. Baseline elevations were collected with RTK GPS units and LiDAR elevations in non-surveyed areas were also corrected using LEAN method. Historical accretion rates were collected at each salt marsh and used to parameterize WARMER, predicting future elevations. Types: Citation; Tags: California, Carpinteria, biota, dynamic salt marsh accretion model, environment, All tags... marsh, salt marsh, wetland ecosystems, Fewer tags Tijuana salt marsh digital elevation model output, sea-level rise scenarios, 2010-2110 Digital elevation model outputs from wetland accreting rate model of ecosystem resilience (WARMER) at ten year intervals from 2010-2110. Baseline elevations were collected with RTK GPS units and LiDAR elevations in non-surveyed areas were also corrected using LEAN method. Historical accretion rates were collected at each salt marsh and used to parameterize WARMER, predicting future elevations. Tags: California, Tijuana, biota, dynamic salt marsh accretion model, environment, All tags... marsh, salt marsh, wetland ecosystems, Fewer tags Sweetwater salt marsh digital elevation model output, sea-level rise scenarios, 2010-2110 Digital elevation model outputs from wetland accreting rate model of ecosystem resilience (WARMER) at ten year intervals from 2010-2110. Baseline elevations were collected with RTK GPS units and LiDAR elevations in non-surveyed areas were also corrected using LEAN method. Historical accretion rates were collected at each salt marsh and used to parameterize WARMER, predicting future elevations. Tags: California, Sweetwater, biota, dynamic salt marsh accretion model, environment, All tags... marsh, salt marsh, wetland ecosystems, Fewer tags Tidal Wetland Elevation Projections for Five San Francisco Bay Delta Regions Using WARMER-2, 2000-2100 Projections of marsh elevation change with WARMER-2 across five regions of the San Francisco Bay Delta (Cache Yolo, South Delta, North Delta, Central Delta, and Suisun). The model was run across a range of initial elevations for each region and for scenarios of sea-level rise (30, 61, 91, 122, 152, 183, 305 cm by 2100), sediment availability (historic, constant, declining, and increase), and with and without a temporally dynamic tidal range. Results from the Delta Simulation Model 2 hydrodynamic model were used to calculate rates of tide range increase with sea-level rise. WARMER-2 was calibrated using soil cores from Callaway et al 2012 (Rush Ranch and Browns Island cores), and a soil core from Miners Slough. ... Categories: Data; Tags: Brackish Marsh, Delta, Emergent Tidal Marsh, Freshwater Tidal Marsh, San Francisco Bay, All tags... USGS Science Data Catalog (SDC), biota, numerical modeling, sea-level change, wetland, Fewer tags 1 2 »