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This ScienceBase space provides an array of USGS Series publications, journal articles, and other published references for the Gap Analysis Project (GAP). Information on GAP-related publications can also be found at: https://www.usgs.gov/core-science-systems/science-analytics-and-synthesis/gap/publications
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This USGS data release is intended to provide a baselayer of information on likely stream crossings throughout the United States. The geopackage provides likely crossings of infrastructure and streams and provides observed information that helps validate modeled crossings and build knowledge about associated conditions through time (e.g. crossing type, crossing condition). Stream crossings were developed by intersecting the 2020 United States Census Bureau Topologically Integrated Geographic Encoding and Referencing (TIGER) U.S. road lines with the National Hydrography Dataset High Resolution flowlines. The current version of this data release specifically focuses on road stream crossings (i.e. TIGER2020 Roads)...
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This USGS data release documents species distribution models for 271 fluvial fish species in their native ranges of the conterminous United States. Source data, supporting code and model results are documented in this data package. Boosted Regression Tree (BRT) models were used to develop presence/absence predictions for each of the National Hydrography Dataset Plus Version 2.1 stream segments within a species' native range. The predictions provided can be linked to the NHDPlusV2.1 geospatial dataset through the COMID to create a spatial depiction of the models. The primary results are stored in the file "BRT Predictions" and are provided in comma separated value (CSV) and Parquet file formats. Parquet file format...
The zip files attached below include the spatial data and symbology layers used to create the PAD-US 3.0 web services found on the PAD-US Viewer. These can be used to recreate the web services in applications that require the underlying spatial data. See the PAD-US Web Services page for direct access to service links and more information.
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The Gap Analysis Project (GAP) Analytical Database represents a synthesis of three core datasets for the conterminous U.S. Specifically 1) the GAP/LANDFIRE National Terrestrial Ecosystems_2011; 2) the Protected Areas Database of the United States (PAD-US) 1.4; and 3) the Species Ranges and Habitat Distribution Models for all terrestrial vertebrates. This database provides a mechanism to effiiently obtain summary statistics of those for a variety of spatial extents, including US states, US counties, Landscape Conservation Cooperation Network Areas, EPA's Level III-IV Ecoregions of the United States, and Level I-III Ecoregions of North America and 12-digit (6th level) hydrologic units. Disclaimer for Approved Database...
Tags: Alabama, Alaska, Arizona, Arkansas, California, All tags...
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This shapefile contains fish habitat condition index (HCI) scores as well as specific disturbance indices for 6th level Hydrologic Unit Code (HUC12) watersheds of the Watershed Boundary Dataset. The source datasets compiled and attributed to spatial units were identified as being: (1) meaningful for assessing fluvial fish habitat; (2) consistent across the entire study area in the way that they were assembled; (3) broadly representative of conditions in the past 10 years, and (4) of sufficient spatial resolution that they could be used to make valid comparisons among HUC12 units. In this data set, variable summaries are linked to HUC12 watersheds developed for the Watershed Boundary Dataset downloaded on March 18,...
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The Gap Analysis Project (GAP) is an element of the U.S. Geological Survey. GAP helps to implement the Department of the Interior’s goals of inventory, monitoring, research, and information transfer. GAP has three primary goals: Identify conservation gaps that help keep common species common; Provide conservation information to the public so that informed resource management decisions can be made; and Facilitate the application of GAP data and analysis to specific resource management activities. To implement these goals, GAP carries out the following objectives: Map the land cover of the United States Map predicted distributions of vertebrate species for the U.S. Map the location, ownership and stewardship of...
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These data depict the National Hydrography Dataset Plus Version 2.1 (NHDPlusV2.1) flowline representation of the National Wild and Scenic Rivers System throughout the conterminous United States as of 2018. U.S. Forest Service geospatial data on National Wild and Scenic River segments (USFS WSR Segment) from 3/1/2016 were joined to the NHDPlusV2.1 to create the Wild and Scenic Rivers 2018 Linked to the NHDPlusV2.1 (wsr_nhdpv2.1) data. To ensure these data correctly represented the NHDPlusV2.1 flowline delineation of the National Wild and Scenic Rivers System, each wsr_nhdpv2.1 river segment was examined against the USFS WSR Segment data to check for duplication and/or omission of Wild and Scenic River segments. Spatial...
Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Arizona, Arkansas, California, Colorado, All tags...
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The USGS Protected Areas Database of the United States (PAD-US) is the nation's inventory of protected areas, including public open space and voluntarily provided, private protected areas, identified as an A-16 National Geospatial Data Asset in the Cadastral Theme (http://www.fgdc.gov/ngda-reports/NGDA_Datasets.html). PAD-US is an ongoing project with several published versions of a spatial database of areas dedicated to the preservation of biological diversity, and other natural, recreational or cultural uses, managed for these purposes through legal or other effective means. The geodatabase maps and describes public open space and other protected areas. Most areas are public lands owned in fee; however, long-term...
Types: Citation; Tags: Agricultural Research Service, Alabama (AL), Alaska (AK), American Samoa (AS), Arizona (AZ), All tags...
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Public access spatial analysis and statistic summaries of the Protected Areas Database of the United States (PAD-US) provide land managers and decision makers with a general assessment of public access across the nation, as represented by the Public Access Category (see Public Access Cat Definition sheet in Microsoft Excel downloads). Area statistics include total acreage, acres by managing agency, and percent access. These summaries are available for various units: National, State, Department of the Interior Region, Congressional District, County, Hydrologic Unit Code 12, EcoRegions I-IV, Urban Areas. Overlapping designation boundaries are intersected into fee simple lands in the Vector Analysis File ( https://www.sciencebase.gov/catalog/item/6064e0edd34eff1443414d6f...
Categories: Data; Tags: Agricultural Research Service, Alabama (AL), Alaska (AK), American Samoa (AS), Arizona (AZ), All tags...
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This USGS data release documents coarse ranges for 123 fish species in the conterminous United States for level 8 hydrologic units from the Watershed Boundary Dataset (WBD). These range maps were derived by combining known fish occurrence information from four data sources: point occurrences from the Aquatic Gap Analysis Project (AGAP) fish database, point occurrences from the IchthyMaps dataset, point occurrences from the Global Biodiversity Information Facility (GBIF), and HUC-8 level range maps developed by NatureServe. Data can be linked to geospatial units of the WBD using the HUC8 field. Data are provided in comma separated value (CSV) and zipped Parquet file formats. Parquet file format is provided to help...
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The Protected Areas Database of the United States (PAD-US) version 3.0 dataset was clipped to the 12 unified regional boundaries for the Department of the Interior (DOI) to provide data downloads for each of the regions. The unified regional boundaries are primarily based on a science-based approach to promote management efficiencies. The unified regions provide better management on an ecosystem basis to include critical components such as wildlife corridors, watersheds, and trail systems. For more information about the DOI regional boundaries see: https://www.doi.gov/employees/reorg/unified-regional-boundaries.
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The Protected Areas Database of the United States (PAD-US) version 3.0 dataset was clipped to 56 State and Territorial boundaries to provide data downloads for areas of interest. The Census Bureau is the national steward for legally defined geographic area boundaries for State and Equivalent areas. The national sub-state geography geodatabase is updated annually and contains multiple layers reflecting selected geography, including state name and jurisdiction; this dataset is translated by USGS and used to standardize "State-Name" and improve boundary quality as a common reference for agencies contributing data for PAD-US. For more information about Census State boundaries see: https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-geodatabase-file.html....
This USGS data release contains products that resulted from aquatic species distribution modeling in the United States on the National Hydrography Dataset Plus Version 2.1. Source data, supporting code and model results are documented in this data release. The file species_model_list.csv provides a list of most recent models for each combination of species, habitat, and region.
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This shapefile contains cumulative fish habitat condition index (HCI) scores as well as specific disturbance indices for local and network catchments of Southeast Alaska. Catchments were created in support of Jared Ross's Master’s thesis. The source datasets compiled and attributed to spatial units were identified as being: (1) meaningful for assessing fluvial fish habitat; (2) consistent across the entire study area in the way that they were assembled; (3) broadly representative of conditions in the past 10 years, and (4) of sufficient spatial resolution that they could be used to make valid comparisons among local catchment units. Citations: Ross, J.A. Influences of timber management and natural landscape factors...
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This CSV file contains cumulative fish habitat condition index (HCI) scores generated for river reaches of the conterminous United States as well as indices generated specifically for four spatial units including local and network catchments and 90 m local and network buffers of river reaches. Note that the cumulative HCI score is determined from limiting index scores generated for the four spatial units listed above. Detailed methods for calculating cumulative fish habitat condition index scores as well as the indices for each spatial extent can be found on the following website: http://assessment.fishhabitat.org/: The variables used to create indices in catchments vs. buffers differ due to differences in resolution...
Categories: Data; Types: ArcGIS REST Map Service, Map Service; Tags: 2015 National Assessment, 2015 National Assessment, Alabama, Anthropogenic factors, Aquatic habitats, All tags...
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Fish occurrence data to support high-resolution distribution models and test various community and macroecological hypotheses have not been available at the national scale. We present IchthyMaps, a database of high-quality historical fish occurrences covering fishes of the conterminous United States. Designed on the principles of metacommunity ecology, IchthyMaps is a compilation of presence records from atlases up to 1990, at the resolution of the 1:100,000 National Hydrography Database Plus (NHDPlus) inter-confluence stream segment, readily aggregated into hierarchically coarser units (e.g. hydrologic unit code 8-digit and 12-digit watersheds). IchthyMaps contains about 606,550 presence records for 1,038 species...
Categories: Data, Publication; Types: Citation; Tags: Alabama, Arizona, Arkansas, Biological Data, Biological sampling, All tags...
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Note: this dataset has been superseded by this new data product: Simpson, A., Turner, R., Blake, R., Liebhold, A., and Dorado, M., 2021, United States Register of Introduced and Invasive Species: U.S. Geological Survey data release, https://doi.org/10.5066/P95XL09Q. Invasive species are a subset of non-native (or nonindigenous) species, and knowing what species are non-native to a region is a first step to managing invasive species. This is the second update to the dataset "First comprehensive list of non-native species established in three major regions of the United States" supporting a USGS Open File Report by the same name published on 2018-10-17. Version 3.0 of the non-native species list, as of 2020-09-15,...
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The Protected Areas Database of the United States (PAD-US) version 3.0 dataset was clipped to 56 State and Territorial boundaries to provide data downloads for areas of interest. The Census Bureau is the national steward for legally defined geographic area boundaries for State and Equivalent areas. The national sub-state geography geodatabase is updated annually and contains multiple layers reflecting selected geography, including state name and jurisdiction; this dataset is translated by USGS and used to standardize "State-Name" and improve boundary quality as a common reference for agencies contributing data for PAD-US. For more information about Census State boundaries see: https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-geodatabase-file.html....
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The Protected Areas Database of the United States (PAD-US) version 3.0 dataset was clipped to the 12 unified regional boundaries for the Department of the Interior (DOI) to provide data downloads for each of the regions. The unified regional boundaries are primarily based on a science-based approach to promote management efficiencies. The unified regions provide better management on an ecosystem basis to include critical components such as wildlife corridors, watersheds, and trail systems. For more information about the DOI regional boundaries see: https://www.doi.gov/employees/reorg/unified-regional-boundaries.


map background search result map search result map USGS Gap Analysis Project (GAP) Publications of the Gap Analysis Project Historical Stream Fish Distribution Database for the Conterminous United States (1950-1990): IchthyMaps National Fish Habitat Partnership (NFHP) 2015 Cumulative Habitat Condition Indices with Limiting and Severe Disturbances for the Conterminous United States linked to NHDPlusV1 v2.0 National Fish Habitat Partnership (NFHP) 2015 Cumulative Habitat Condition Scores and Disturbance Indices Linked to Catchments of Southeast Alaska U.S. Geological Survey Gap Analysis Project (GAP) Analytical Database A comprehensive list of non-native species established in three major regions of the United States: Version 3.0 Wild and Scenic Rivers 2018 Linked to the NHDPlusV2.1 Fluvial Fish Native Distributions for the Conterminous United States using the NHDPlusV2.1 and Boosted Regression Tree (BRT) Models Coarse Range Maps for Fish Species in the Conterminous United States using HUC8s Database of Stream Crossings in the United States National Fish Habitat Partnership (NFHP) 2015 Cumulative Habitat Condition Scores and Disturbance Indices Linked to Catchments of Southeast Alaska Historical Stream Fish Distribution Database for the Conterminous United States (1950-1990): IchthyMaps National Fish Habitat Partnership (NFHP) 2015 Cumulative Habitat Condition Indices with Limiting and Severe Disturbances for the Conterminous United States linked to NHDPlusV1 v2.0 Fluvial Fish Native Distributions for the Conterminous United States using the NHDPlusV2.1 and Boosted Regression Tree (BRT) Models Coarse Range Maps for Fish Species in the Conterminous United States using HUC8s Wild and Scenic Rivers 2018 Linked to the NHDPlusV2.1 U.S. Geological Survey Gap Analysis Project (GAP) Analytical Database A comprehensive list of non-native species established in three major regions of the United States: Version 3.0 USGS Gap Analysis Project (GAP) Publications of the Gap Analysis Project Database of Stream Crossings in the United States