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The dataset represents the work of multiple states and Federal agencies as part of the US Gap Analysis and LandFire programs. Multi-season satellite imagery (Landsat ETM+) from 1999-2001 were used in conjunction with digital elevation model (DEM) derived datasets (e.g. elevation, landform) to model natural and semi-natural vegetation. The minimum mapping unit for this dataset is approximately 1 acre. Landcover classes are drawn from NatureServe's Ecological System concept. Five-hundred and fourty-four land cover classes composed of 12 cultural and 532 Natural/Semi-natural types are described. Land cover classes were mapped with a variety of techniques including decision tree classifiers, terrian modeling, inductive...
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Both tabular and spatial models were used to predict fire regime departure at the sub-watershed scale (i.e., HUC 10 units). Integrating the fire regime models with predicted changes in climate envelopes provides a clearer understanding of how these ecological systems are likely to respond to multiple stresses. The natural range of variability for each CE was initially derived from LANDFIRE Vegetation Dynamics Development Tool (VDDT) models. The VDDT allows for the development of probabilistic quantitative model of CEs consisting of multiple ecological states with both deterministic and probabilistic drivers. For any defined suite of drivers, the models predict the relative abundance of each state within a defined...
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Both tabular and spatial models were used to predict fire regime departure at the sub-watershed scale (i.e., HUC 10 units). Integrating the fire regime models with predicted changes in climate envelopes provides a clearer understanding of how these ecological systems are likely to respond to multiple stresses. The natural range of variability for each CE was initially derived from LANDFIRE Vegetation Dynamics Development Tool (VDDT) models. The VDDT allows for the development of probabilistic quantitative model of CEs consisting of multiple ecological states with both deterministic and probabilistic drivers. For any defined suite of drivers, the models predict the relative abundance of each state within a defined...
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Some of the SNK rasters intentionally do not align or have the same extent. These rasters were not snapped to a common raster per the authors' discretion. Please review selected rasters prior to use. These varying alignments are a result of the use of differing source data sets and all products derived from them. We recommend that users snap or align rasters as best suits their own projects. - A continuous grid dataset quantifying woody biomass (tons per acre) within 25 miles of communities in the Seward Peninsula – Nulato Hills – Kotzebue Lowlands (SNK) Rapid Ecoregional Assessment (REA).
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Both tabular and spatial models were used to predict fire regime departure at the sub-watershed scale (i.e., HUC 10 units). Integrating the fire regime models with predicted changes in climate envelopes provides a clearer understanding of how these ecological systems are likely to respond to multiple stresses. The natural range of variability for each CE was initially derived from LANDFIRE Vegetation Dynamics Development Tool (VDDT) models. The VDDT allows for the development of probabilistic quantitative model of CEs consisting of multiple ecological states with both deterministic and probabilistic drivers. For any defined suite of drivers, the models predict the relative abundance of each state within a defined...
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Both tabular and spatial models were used to predict fire regime departure at the sub-watershed scale (i.e., HUC 10 units). Integrating the fire regime models with predicted changes in climate envelopes provides a clearer understanding of how these ecological systems are likely to respond to multiple stresses. The natural range of variability for each CE was initially derived from LANDFIRE Vegetation Dynamics Development Tool (VDDT) models. The VDDT allows for the development of probabilistic quantitative model of CEs consisting of multiple ecological states with both deterministic and probabilistic drivers. For any defined suite of drivers, the models predict the relative abundance of each state within a defined...
The viability of the whitebark pine (Pinus albicaulis) species is under threat due to precipitously declining populations. This study investigates the sources of differing levels of concern about climate-driven effects on whitebark pine trees. It also investigates support for different Whitebark Pine (WBP) management strategies on federal public lands.
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The U.S. Geological Survey (USGS) has generated land surface form classes for the contiguous United States. These land surface form classes were created as part of an effort to map standardized, terrestrial ecosystems for the nation using a classification developed by NatureServe (Comer and others, 2003). Ecosystem distributions were modeled using a biophysical stratification approach developed for South America (Sayre and others, 2008) and now being implemented globally (Sayre and others, 2007). Land surface forms strongly influence the differentiation and distribution of terrestrial ecosystems, and are one of the key input layers in the ecosystem delineation process.The methodology used to produce these land surface...
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This dataset contains outlines for the Colorado Plateau, Arizona/New Mexico Plateau, and Sonoran Desert eco-regions. They were extracted from the CEC North American Eco-Regions Level III dataset (revision 2010). For further information on the CEC eco-regions dataset, see http://www.epa.gov/wed/pages/ecoregions/na_eco.htm
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This part of DS 781 presents data for the acoustic-backscatter map of Offshore of Scott Creek map area, California. Backscatter data are provided as three separate grids depending on mapping system. The raster data files are included in "BackscatterA_8101_OffshoreScottCreek.zip," which is accessible from http://dx.doi.org/10.5066/F7CJ8BJW.The acoustic-backscatter map of the Offshore of Scott Creek, California was generated from backscatter data collected by California State University, Monterey Bay (CSUMB), by Fugro Pelagos, and by the U.S. Geological Survey (USGS). Mapping was completed between 2006 and 2009, using a combination of 400-kHz Reson 7125 and 244-kHz Reson 8101 multibeam echosounders, as well as a 234-kHz...
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This part of DS 781 presents data for the habitat map of the seafloor of the Offshore of Santa Cruz map area, California. The vector data file is included in "Habitat_OffshoreSantaCruz.zip," which is accessible from http://dx.doi.org/10.5066/F7TM785G.Using multibeam echosounder (MBES) bathymetry and backscatter data, potential marine benthic habitat maps were constructed. The habitats were based on substrate types and documented or "ground truthed" using underwater video images and seafloor samples obtained by the USGS. These maps display various habitat types that range from flat, soft, unconsolidated sediment-covered seafloor to hard, deformed (folded), or highly rugose and differentially eroded bedrock exposures....
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This part of DS 781 presents data for the acoustic-backscatter map of Offshore of Santa Cruz map area, California. Backscatter data are provided as three separate grids depending on mapping system. The raster data files are included in "Backscatter_Swath_OffshoreSantaCruz.zip," which is accessible from http://dx.doi.org/10.5066/F7TM785G.The acoustic-backscatter map of the Offshore of Santa Cruz, California was generated from backscatter data collected by the U.S. Geological Survey (USGS). Mapping was completed in 2009, using a 234-kHz SWATHplus bathymetric sidescan-sonar system. Within the final imagery, brighter tones indicate higher backscatter intensity, and darker tones indicate lower backscatter intensity....
For comparing impacts of bird and bat collisions with wind turbines, investigators estimate fatalities/megawatt (MW) of rated capacity/year, based on periodic carcass searches and trials used to estimate carcasses not found due to scavenger removal and searcher error. However, scavenger trials typically place >=10 carcasses at once within small areas already supplying scavengers with carcasses deposited by wind turbines, so scavengers may be unable to process and remove all placed carcasses. To avoid scavenger swamping, which might bias fatality estimates low, we placed only 1-5 bird carcasses at a time amongst 52 wind turbines in our 249.7-ha study area, each carcass monitored by a motion-activated camera. Scavengers...
To inform the design and implementation of land-use policies that consider the variety of goods and services people derive from ecosystems, it is essential to understand spatial patterns of individual services, how multiple services relate to each other, and how these relationships vary across spatial scales and localities. Despite the importance of freshwater as a determinant of regional economic and human demographic patterns, there are surprisingly few studies that map the provision of a range of services associated with the quality of the aquatic environment. Here we examine relationships between indicators of riverine water and associated habitat quality, freshwater biodiversity, three terrestrial ecosystem...
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Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. These general purpose regions are critical for structuring and implementing ecosystem management strategies across federal agencies, state agencies, and nongovernment organizations that are responsible for different types of resources within the same geographical areas. The approach used to compile this map is based on the premise that ecological regions can be identified through the analysis of patterns of biotic and abiotic phenomena, including...
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This part of DS 781 presents 2-m-resolution Reson 7125 data for the acoustic-backscatter map of Offshore of Monterey map area, California. These metadata describe acoustic-backscatter data collected and processed by California State University, Monterey Bay (CSUMB), Seafloor Mapping Lab and processed into a map sheet by the U.S. Geological Survey. The raster data files are included in "Backscatter_7125_Monterey.zip," which is accessible from http://dx.doi.org/10.3133/ofr20161110. This 2-m-resolution Reson 7125 acoustic backscatter map of Offshore of Monterey map area, California, was generated from backscatter data collected by California State University, Monterey Bay (CSUMB) using a 200-kHz/400-kHz Reson 7125...
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This part of the Oregon OCS data release presents marine mammal observations from cruise 2014-607-FA in the Floating Wind Farm survey area. The survey was conducted using 12 hour day operations out of Charleston Harbor near Coos Bay, Oregon. The cruise plan consisted of 23 days on site split between sonar mapping and video ground truth surveying. Activities parsed out to nine days of sonar mapping, three days of video surveying, eight days of no operations due to weather, and three days mobilizing and demobilizing (table 1). Typically the Snavely would transit out to the survey area in an hour at a speed of 20 knots. Marine Mammal observations were made during the multibeam sonar mapping portion of the cruise only....
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Beach & Dune Ecosystem Integrity - Blueprint 2.0 This layer is part of an older version of the Blueprint. This data represents the Blueprint 2.0 ecosystem integrity scores for the beach and dune ecosystem within the South Atlantic LCC geography. To read more about the indicators, please visit the indicator page. Input Data and Mapping Steps Indicators (200 m resolution) were spatially modeled, tested, reviewed, and used as inputs to derive high integrity areas. Please see the indicator folder in the Blueprint 2.0 indicator gallery for more information about indicator spatial data. The integrity scores for this system are based on indicators within the beach and dune ecosystem and landscapes "habitat aggregate"....
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The dataset represents the work of multiple states and Federal agencies as part of the US Gap Analysis and LandFire programs. Multi-season satellite imagery (Landsat ETM+) from 1999-2001 were used in conjunction with digital elevation model (DEM) derived datasets (e.g. elevation, landform) to model natural and semi-natural vegetation. The minimum mapping unit for this dataset is approximately 1 acre. Landcover classes are drawn from NatureServe's Ecological System concept. Five-hundred and fourty-four land cover classes composed of 12 cultural and 532 Natural/Semi-natural types are described. Land cover classes were mapped with a variety of techniques including decision tree classifiers, terrian modeling, inductive...


map background search result map search result map United States EPA Ecoregions of the U.S. - Level IV Colorado Plateaus, Arizona/New Mexico Plateau, and Sonoran Desert eco-regions Terrestrial Ecosystems - Land Surface Forms of the Conterminous United States BackscatterA [8101]--Offshore Scott Creek, California Backscatter [SWATH]--Offshore Santa Cruz, California Habitat--Offshore Santa Cruz, California OUTDATED Beach & Dune: Ecosystem Integrity - South Atlantic Blueprint 2.0 Oregon OCS mammal observations Backscatter [7125]-- Offshore of Monterey Map Area, California BLM REA MBR 2010 NatureServe Terrestrial Ecological Systems NAWarmDesertBadland BLM REA MBR 2010 NatureServe Terrestrial Ecological Systems NAWarmDesertBedrockCliffAndOutcrop BLM REA MBR 2010 Ecological System Fire Regime Departure 2025 - SonoraMojaveMixedSaltDesertScrub BLM REA MBR 2010 Ecological System Fire Regime Departure 2060 - Mojave Mid-Elevation Mixed Desert Scrub (Mesic) BLM REA MBR 2010 Ecological System Fire Regime Departure 2025 - Inter-Mountain Basins Mixed Salt Desert Scrub BLM REA MBR 2010 Ecological System Fire Regime Departure 2025 - SonoraMojaveCreosotebushWhiteBursageDesertScrub BLM REA SNK 2010 Biomass - Alternative Energy Development Change Agent Backscatter [7125]-- Offshore of Monterey Map Area, California Habitat--Offshore Santa Cruz, California Backscatter [SWATH]--Offshore Santa Cruz, California BackscatterA [8101]--Offshore Scott Creek, California BLM REA MBR 2010 Ecological System Fire Regime Departure 2025 - SonoraMojaveMixedSaltDesertScrub BLM REA MBR 2010 Ecological System Fire Regime Departure 2025 - SonoraMojaveCreosotebushWhiteBursageDesertScrub BLM REA MBR 2010 NatureServe Terrestrial Ecological Systems NAWarmDesertBadland BLM REA MBR 2010 NatureServe Terrestrial Ecological Systems NAWarmDesertBedrockCliffAndOutcrop BLM REA MBR 2010 Ecological System Fire Regime Departure 2025 - Inter-Mountain Basins Mixed Salt Desert Scrub BLM REA MBR 2010 Ecological System Fire Regime Departure 2060 - Mojave Mid-Elevation Mixed Desert Scrub (Mesic) BLM REA SNK 2010 Biomass - Alternative Energy Development Change Agent Colorado Plateaus, Arizona/New Mexico Plateau, and Sonoran Desert eco-regions OUTDATED Beach & Dune: Ecosystem Integrity - South Atlantic Blueprint 2.0 Terrestrial Ecosystems - Land Surface Forms of the Conterminous United States United States EPA Ecoregions of the U.S. - Level IV