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This data set maps sagebrush mortality in Utah delineated by Utah Division of Wildlife Resources personnel during the summer of 2003.
Development of oil and gas wells leads to the destruction and fragmentation of natural habitat. Oil and gas wells also increase noise levels which has been shown to be detrimental to some wildlife species. Therefore, the density of oil and gas wells in the western United States was modeled based on data obtained from the National Oil and Gas Assessment.
Map containing historical census data from 1900 - 2000 throughout the western United States at the county level. Data includes total population, population density, and percent population change by decade for each county. Population data was obtained from the US Census Bureau and joined to 1:2,000,000 scale National Atlas counties shapefile.
Communication antenna towers registered with the U.S. Federal Communications Commission's Antenna Structure Registration (ASR) program. The FCC requires that all towers >200 ft tall and towers <200 ft that are positioned in the glide path of an airport be registered with the FCC ASR program. Therefore, this data set does not necessarily depict all communication antennas actually present on the landscape. The source data are updated weekly by the FCC as new permits are issued. However, this data set is designed for a specific analysis, and is planned to remain static as of the publication date (11/06/2003).
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Communication antenna towers recorded by the U.S. Federal Communications Commission's International Bureau Filing System (IBFS) - 47 CFR Parts 73/74, 23 and 25 (Earth Stations). Note that not all antennas and towers are required to be registered with the FCC. Therefore, this data set does not necessarily depict ALL communication features actually present on the landscape. The source data are updated daily by the FCC as new permits are issued. However, this data set is designed for a specific analysis, and is planned to remain static as of the publication date (11/06/2003).
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Greater sage-grouse population components devrived using an 18-km maximum connection distance. Analysis was conducted using the CONEFOR SENSINODE 2.2 software package and this dataset was developed from lek data obtained from the state wildlife agencies. Components containing < 5 leks have been removed in order to protect the location of single or small groups of leks.


map background search result map search result map Agriculture in the western US Proportion of All Sagebrush Species Land Cover (1-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of All Sagebrush Species Land Cover (540-m scale) in the Wyoming Basins Ecoregional Assessment area ASR_towers_sgca Elevation in the Wyoming Basins Ecoregional Assessment area Proportion of Grassland Land Cover (1-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Grassland Land Cover (5-km scale) in the Wyoming Basins Ecoregional Assessment area All Interstates in the Western United States Proportion of Juniper Land Cover (18-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Low and Black Sagebrush Land Cover (5-km scale) in the Wyoming Basins Ecoregional Assessment area Mixed Shrubland Land Cover in the Wyoming Basins Ecoregional Assessment area Proportion of Mountain Sagebrush Land Cover (3-km scale) in the Wyoming Basins Ecoregional Assessment area Oil and Gas Well Density in the Western United States Density of all roads (km/sq km) within a 5-km radius in the Wyoming Basins Ecoregional Assessment area Density of all roads (km/sq km) within a 540-m radius in the Wyoming Basins Ecoregional Assessment area Sagebrush Mortality in Utah - 2003 Sage Grouse Lek Components (2003-2007) Human Population in the Western United States (1900 - 2000) All Roads in the Western United States Sagebrush Mortality in Utah - 2003 Proportion of All Sagebrush Species Land Cover (1-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of All Sagebrush Species Land Cover (540-m scale) in the Wyoming Basins Ecoregional Assessment area Elevation in the Wyoming Basins Ecoregional Assessment area Proportion of Grassland Land Cover (1-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Grassland Land Cover (5-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Juniper Land Cover (18-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Low and Black Sagebrush Land Cover (5-km scale) in the Wyoming Basins Ecoregional Assessment area Mixed Shrubland Land Cover in the Wyoming Basins Ecoregional Assessment area Proportion of Mountain Sagebrush Land Cover (3-km scale) in the Wyoming Basins Ecoregional Assessment area Density of all roads (km/sq km) within a 5-km radius in the Wyoming Basins Ecoregional Assessment area Density of all roads (km/sq km) within a 540-m radius in the Wyoming Basins Ecoregional Assessment area Sage Grouse Lek Components (2003-2007) All Interstates in the Western United States All Roads in the Western United States Agriculture in the western US Human Population in the Western United States (1900 - 2000) Oil and Gas Well Density in the Western United States ASR_towers_sgca