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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.
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: Arizona,
California,
Colorado,
Conservation Assessment,
Idaho, All tags...
Montana,
Nevada,
New Mexico,
Oregon,
Utah,
Washington,
Wyoming,
density,
environment,
gas wells,
geoscientificInformation,
natural gas resources,
natural resource extraction,
oil resources,
oil wells,
wells, Fewer tags
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All Interstates in the western United States from the 2000 US Census TIGER/line files.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Arizona,
California,
Census 2000,
Colorado,
Idaho, All tags...
Interstate,
Montana,
Nevada,
New Mexico,
Oregon,
TIGER/line,
Utah,
Washington,
Western United States,
Wyoming,
highways,
roadways,
society,
transportation, Fewer tags
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Identification of genes underlying genomic signatures of natural selection is key to understanding adaptation to local conditions. We used targeted resequencing to identify SNP markers in 5321 candidate adaptive genes associated with known immunological, metabolic and growth functions in ovids and other ungulates. We selectively targeted 8161 exons in protein-coding and nearby 5′ and 3′ untranslated regions of chosen candidate genes. Targeted sequences were taken from bighorn sheep (Ovis canadensis) exon capture data and directly from the domestic sheep genome (Ovis aries v. 3; oviAri3). The bighorn sheep sequences used in the Dall's sheep (Ovis dalli dalli) exon capture aligned to 2350 genes on the oviAri3 genome...
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This dataset is a running trend analysis of baseflow from USGS stream gage records from as early as 1911 to 2016 for 23 unregulated streams across the five largest Hawaiian Islands: Kauai, Oʻahu, Molokaʻi, Maui, and Hawaiʻi. First, we separated mean daily flow into direct run‐off and baseflow with the “lfstat” separation procedure in R, which employs the Institute of Hydrology (1980) standard baseflow separation procedure of 5‐day blocks to identify minimum flow, called a turning point. The turning points are then connected to obtain the baseflow hydrograph. For each stream, Sen's slope and Mann–Kendall statistic were calculated incrementally using the R package “trend” to give window sizes from 10‐107 years depending...
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Abstract: "Oil and natural gas development in the Intermountain West region of North America has expanded over the last 2 decades, primarily within sagebrush dominated landscapes. Although the effects of energy development on high-profile game species such as the greater sage-grouse (Centrocercus urophasianus) have been documented, studies examining responses of non-game birds are lacking. Simultaneously, many songbirds that breed within sagebrush steppe habitats have shown range-wide population declines that are likely due to widespread habitat loss and alteration. We evaluated songbird abundance and species richness across gradients of oil and natural gas development intensity, as indexed by well density, at 3...
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