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The U.S. Geological Survey (USGS) developed a systematic, quantitative approach to prioritize candidate basins that can support the assessment and forecasting objectives of the major USGS water science programs. Candidate basins were the level-4 hydrologic units (HUC4) with some of the smaller HUC4s being combined (hereafter referred to as modified HUC4 basins). Candidate basins for the contiguous United States (CONUS) were grouped into 18 hydrologic regions. Thirty-three geospatial variables representing land use, climate change, water use, water-balance components, streamflow alteration, fire risk, and ecosystem sensitivity were initially considered to assist in ranking candidate basins for study. The two highest...
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This map was developed to examine multi-scale spatial relationships between percentage of sagebrush and other response variables of interest. A map of sagebrush in the western United States was used as a base layer for a moving window analysis to calculate the percentage of the area classified as sagebrush within a 50-km search radius.
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This map was developed to examine multi-scale spatial relationships between percentage of sagebrush and other response variables of interest. A map of sagebrush in the western United States was used as a base layer for a moving window analysis to calculate the percentage of the area classified as sagebrush within a 5-km search radius.
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Land use was quantified within a 4-km radius around 36 apiaries in North Dakota, South Dakota, and Minnesota over two years, 2015-16 and 2016-17. The area (hectares) of Ag (corn, soy, small grains), Grass (pasture, grassland, fallow land, wildflowers, shrub land, and hay land), Wetlands (herbaceous and woody), and Bee crops (alfalfa, canola, sunflower) were quantified around each apiary in each year. Within each apiary, the average change in frames of adult bees among all colonies from June to September was calculated. Additionally, the average September Varroa mite infestation rate, the average adult population size during almond pollination, the count of colonies exhibiting queen events in September, and the count...


map background search result map search result map Proportion of Sagebrush Land Cover (5-km scale) in the western US Proportion of Sagebrush Land Cover (50-km scale) 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 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 Low and Black Sagebrush Land Cover 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 Mixed Shrubland Land Cover (1-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Mixed Shrubland Land Cover (5-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Mixed Shrubland Land Cover (540-m scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Mountain Sagebrush Land Cover (3-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Mountain Sagebrush Land Cover (5-km scale) in the Wyoming Basins Ecoregional Assessment area Riparian Land Cover in the Wyoming Basins Ecoregional Assessment area Proportion of Salt Desert Shrub Land Cover (1-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Salt Desert Shrub Land Cover (3-km scale) in the Wyoming Basins Ecoregional Assessment area Spatio-temporally decoupled land use influences honey bee health and pollination service delivery dataset Data used to prioritize the selection of river basins for intensive monitoring and assessment by the U.S. Geological Survey Spatio-temporally decoupled land use influences honey bee health and pollination service delivery dataset 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 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 Low and Black Sagebrush Land Cover 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 Mixed Shrubland Land Cover (1-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Mixed Shrubland Land Cover (5-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Mixed Shrubland Land Cover (540-m scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Mountain Sagebrush Land Cover (3-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Mountain Sagebrush Land Cover (5-km scale) in the Wyoming Basins Ecoregional Assessment area Riparian Land Cover in the Wyoming Basins Ecoregional Assessment area Proportion of Salt Desert Shrub Land Cover (1-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Salt Desert Shrub Land Cover (3-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Sagebrush Land Cover (5-km scale) in the western US Proportion of Sagebrush Land Cover (50-km scale) in the western US Data used to prioritize the selection of river basins for intensive monitoring and assessment by the U.S. Geological Survey