Filters: Tags: Population Dynamics (X) > Extensions: Shapefile (X)

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Human Population in the Western United States (1900 - 2000) 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. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, California, Colorado, Idaho, Montana, All tags... Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, US Census, Utah, Washington, Western United States, Wyoming, census, culture and demographics, historic population, population (human), population dynamics, society, Fewer tags Genetically informed seed transfer zones for Astragalus lonchocarpus, Cleome serrulata, and Heliomeris multiflora across the Colorado Plateau and adjacent regions These data were compiled to provide seed transfer and native plant materials development guidance to managers and practitioners across the Colorado Plateau and in adjacent regions. This data release contains empirical seed transfer zones derived from molecular genetic data for Cleome serrulata (syn. Peritoma serrulata), Heliomeris multiflora, and Astragalus lonchocarpus. These species show distinct population structure (i.e., genetic differentiation) across their ranges; as such, seed transfer zones reflect both patterns of genetic differentiation and information on each species' unique adaptations to climatic gradients. These shapefile data may support successful restoration outcomes if, for example, seed transfer... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Astragalus lonchocarpus, Botany, Cleome serrulata (syn. Peritoma serrulata), Colorado, All tags... Colorado Plateau, Ecology, Genetics, Geography, Heliomeris multiflora, Information Sciences, Intermountain West, Nevada, New Mexico, North America, USGS Science Data Catalog (SDC), United States, Utah, Wyoming, adaptation, air temperature, biogeography, biota, climatic gradients, data release, differentiation, effects of climate change, environment, environmental restoration, field inventory and monitoring, flora restoration, genetic differentiation, genetic diversity, genetic resources, genetic variation, mean annual precipitation, molecular biology, molecular genetic data, native plant, native species, natural resource management, plants (organisms), population and community ecology, population differentiation, population dynamics, precipitation (atmospheric), precipitation seasonality, restoration, seed accessions, seed strategies, seed transfer, seed transfer zones, species diversity, species' adaptations, temperature seasonality, Fewer tags