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The GIS shapefile "Extra limit counts of southern sea otters 2018" is a point layer representing the locations of sea otter sightings that fall outside the officially recognized range of the southern sea otter (Enhydra lutris nereis) in mainland California. These data were collected during the spring 2018 range-wide census. The USGS range-wide sea otter census has been undertaken each year since 1982, using consistent methodology involving both ground-based and aerial-based counts. The spring census provides the primary basis for gauging population trends by State and Federal management agencies. Sea otter distribution in California (the mainland range) is considered to comprise a band of potential habitat stretching...
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Of the 21 golden eagles satellite-tagged in Salmon, Idaho and Snake River National Conservation Area, 10 were also radio-tagged with tail-mounted very high frequency (VHF) transmitters to allow for behavioral observations between 1993 and 1994. The observed data were originally processed as a DIF file. The Data at Risk preservation project transformed the original DIF file data into CSV format and created a shapefile from the geospatial points. The observed data shapefile (Observed_Data.shp) provides the 682 estimated locations of the golden eagles and all behavioral observations taken in the field. The information provided in the Observed dataset can be related to the other two datasets via each bird’s unique PTT...
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This data, grsg_lcp_ThiessenPoly_mst4, is one of five hierarchical delineations of greater sage-grouse population structure. The data represent Thiessen polygons of graph constructs (least-cost path minimum spanning tree [LCP-MST]) that defined our population structure of sage-grouse breeding sites in the western United States. This data was developed by applying dispersal and genetic rules to decompose the fully connected population structure (graph) into the product presented here. Understanding wildlife population structure and connectivity can help managers identify conservation strategies, as structure can facilitate the study of population changes and habitat connectivity can provide information on dispersal...
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The betweenness (bc; grsg_lcp_betweenness_centrality) defines the importance of a node in a graph based on how many times it occurs in the shortest path between all pairs of nodes. In other words, a node is important if it is included in many shortest paths between other nodes because it serves as a bridge between different parts of the graph. The data were defined from least-cost paths (LCPs) constructed into minimum spanning trees (MSTs). The bc identified major corridors spanning the sage-grouse range where nodes had a larger number of connections with other nodes, reflecting regions where leks potentially play larger roles of sage-grouse continuity based on graph theory analytics. We identified a threshold of...
The shapefiles depict the 2D HEC-RAS hydraulic modeling domains used for the simulations described in the associated publication. Model domains were delineated in the HEC-RAS geometry editor to encompass river-valley bottoms and adjacent hillslopes of four river reaches of contrasting contributing area and morphology: Seneca Creek at Dawsonville, MD; Patapsco River at Woodstock, MD; Patuxent River at Unity, MD; and Little Gunpowder Falls at Laurel Brook, MD.
The shapefiles depict the valley bottom areas over which HEC-RAS model results were summarized. Valley bottoms were manually delineated in ArcMap by visually interpreting LIDAR terrain models and aerial imagery. Substantial changes in elevation, curvature, and slope were interpreted within the context of their position within the study reach to be channel banks and valley walls. Such areas were excluded from the valley bottom delineation.
The shapefiles depict the 2D HEC-RAS hydraulic modeling domains used for the simulations described in the associated publication. Model domains were delineated in the HEC-RAS geometry editor to encompass river-valley bottoms and adjacent hillslopes of four river reaches of contrasting contributing area and morphology: Seneca Creek at Dawsonville, MD; Patapsco River at Woodstock, MD; Patuxent River at Unity, MD; and Little Gunpowder Falls at Laurel Brook, MD.
Three sets of standardized land cover/use data exist (1989, 2000, and 2010) for the Upper Mississippi River System (UMRS) through the US Army Corps of Engineers (USACE), Upper Mississippi River Restoration (UMRR) program. These data provide the opportunity to detect planform change for two time periods: 1989-2000 and 2000-2010. This dataset identifies specific types of changes and addresses errors from potential sources in the overlay. Four of the change types will be reported on, while the others change types were retained in the derived data.
We applied Zequanox using a custom-engineered, boat mounted application system to replicated 0.30 Hectare plots within a small inland lake. The objectives of these applications were to determine if uncontained, open-water Zequanox applications could effectively control zebra mussel populations and protect native unionid mussel populations within zebra mussel infested systems. The datasets included are as follows: Exposure Water Chemistry Hardness and Alkalinity Native Mussel Sonde Water Chemistry Zebra Mussel Density Zebra Mussel Length Zebra Mussel Mortality Zequanox Concentration ShapeFiles: PLOTS, UNIONID, ZEQUANOX CONCENTRATION, ZM_DENSITY, ZM_MORTALITY
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Coastal and estuarian wetlands in the Great Lakes Basin are increasingly impacted by habitat degradation, invasive species, and most recently (late 2010's), increased water levels. These wetlands act as an important buffer between the open lake and the near-shore areas, as key areas for nutrient cycling, as critical nurseries for many species of lake fish, and as habitat for numerous species of concern. Understanding how the cover and composition of these wetlands has changed over time is critical to making informed management decisions. Using both historical documents and imagery we will work to create historic maps of wetland coverage that can be compared over time and to current maps and imagery of these critical...
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The supplemental data presented here contain shapefiles of the hydrographic area, regions, groundwater evapotranspiration areas, and select watersheds in Harney Basin used in the hydrologic budget of the Harney Basin groundwater system, 1982-2016 report.
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This dataset contains information regarding the acreages of land currently (as of 2004) enrolled in the Conservation Reserve Program (CRP) distributed by county and the year the CRP contract was initiated (1987-2004, excluding 1994 and 1995). Additionally, it contains total acreages of land enrolled in the CRP distributed by county and the contract year (1987-2003). USDA Farm Service Agency's (FSA) Conservation Reserve Program (CRP) is a voluntary program available to agricultural producers to help them safeguard environmentally sensitive land. Producers enrolled in CRP plant long-term, resource-conserving covers to improve the quality of water, control soil erosion, and enhance wildlife habitat. In return, FSA...
Categories: Data, pre-SM502.8; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, CRP, California, Colorado, Colorado Plateau, All tags...
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The Mendocino mule deer herd complex is comprised of three overlapping black-tailed deer (Odocoileus hemionus columbianus) administrative herds, including Mendocino, Clear Lake, and Alder Springs. Mendocino black-tailed deer exhibit variable movement patterns and strategies, including traditional seasonal migrants, full-time residents, and multi-range migrants. Migrants move between seasonal ranges from a multitude of lower elevation areas within the North Coast Range in winter to higher elevation summer ranges (fig. XXX). Local biologists predict high-use winter ranges throughout both foothill slopes and valley bottoms. Female deer of the Mendocino herd complex exhibit both short-term (seasonal/annual) and long-term...
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South Wallowas mule deer winter ranges are dispersed across areas of low elevation near the Idaho border. During spring, mule deer wintering north of Powder River and Pyles Canyon migrate to Catherine Creek and the Wallowa Mountains within the Wallowa-Whitman National Forest. Interstate 84 creates a complete barrier to southern movement for the South Wallowas herd. Mule deer wintering in areas near Interstate 84, Lawrence Creek, and Manning Creek are largely residents with only two migratory mule deer traveling to Little Lookout Mountain and Thief Valley Reservoir. Other mule deer reside along Snake River, which forms the Idaho border. One mule deer crosses Snake River south of the Powder River headwaters, migrating...
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South Wallowas mule deer winter ranges are dispersed across areas of low elevation near the Idaho border. During spring, mule deer wintering north of Powder River and Pyles Canyon migrate to Catherine Creek and the Wallowa Mountains within the Wallowa-Whitman National Forest. Interstate 84 creates a complete barrier to southern movement for the South Wallowas herd. Mule deer wintering in areas near Interstate 84, Lawrence Creek, and Manning Creek are largely residents with only two migratory mule deer traveling to Little Lookout Mountain and Thief Valley Reservoir. Other mule deer reside along Snake River, which forms the Idaho border. One mule deer crosses Snake River south of the Powder River headwaters, migrating...
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The Likely Tables herd contains migrants, but this herd does not migrate between traditional summer and winter seasonal ranges. Instead, much of the herd displays a nomadic tendency, slowly migrating north for the summer using various high use areas as they move. Therefore, annual ranges were modeled using year-round data to demarcate high use areas in lieu modeling specific winter ranges. A high use area being used during winter by many of the collared animals is west of the Warner Mountains, east of U.S. Highway 395, and north of Moon Lake. Some animals live in the agricultural fields west of U.S. Highway 395. There appears to be little if any movement across the highway, which is fenced on both sides in this...
map background search result map search result map Conservation Reserve Program Acreage by County Cottonwood Lake Study Area-Wetland Vegetation Zones-1991 Cottonwood Lake Study Area-Wetland Vegetation Zones-2001 Cottonwood Lake Study Area-Wetland Vegetation Zones-2005 Observational Data, Golden Eagles (Aquila chrysaetos), Idaho and Oregon, United States, 1993-1994 Patapsco Shapefiles depicting the 2D HEC-RAS hydraulic modeling domains Patuxent Shapefiles depicting the 2D HEC-RAS hydraulic modeling domains LittleGunpowderFalls Shapefiles depicting the valley bottom areas. Annual California Sea Otter Census: 2018 Extra Limit Observations Shapefile Unionid Shape File Info for Assessment of uncontained Zequanox applications in a Midwestern lake Selected planform changes between 1989-2010 for the UMR data Great Lakes Wetlands, 1970ish (1) Harney Basin Boundaries: Hydrographic Area, Groundwater Evapotranspiration Area, Regions, Lowlands, Uplands, and Selected Watersheds in Harney Basin, Southeastern Oregon Greater sage-grouse betweenness centrality of fully connected population structure in the western United States Greater sage-grouse population structure (4: coarsest-scaled, tier four) in the western United States Boat ramp locations in the United States of America California Mule Deer Mendocino Migration Corridors California Pronghorn Likely Tables Migration Routes Oregon Mule Deer South Wallowas Stopovers Oregon Mule Deer South Wallowas Winter Ranges Annual California Sea Otter Census: 2018 Extra Limit Observations Shapefile LittleGunpowderFalls Shapefiles depicting the valley bottom areas. Patapsco Shapefiles depicting the 2D HEC-RAS hydraulic modeling domains Unionid Shape File Info for Assessment of uncontained Zequanox applications in a Midwestern lake Cottonwood Lake Study Area-Wetland Vegetation Zones-1991 Patuxent Shapefiles depicting the 2D HEC-RAS hydraulic modeling domains Cottonwood Lake Study Area-Wetland Vegetation Zones-2005 Cottonwood Lake Study Area-Wetland Vegetation Zones-2001 California Mule Deer Mendocino Migration Corridors Oregon Mule Deer South Wallowas Stopovers Oregon Mule Deer South Wallowas Winter Ranges California Pronghorn Likely Tables Migration Routes Observational Data, Golden Eagles (Aquila chrysaetos), Idaho and Oregon, United States, 1993-1994 (1) Harney Basin Boundaries: Hydrographic Area, Groundwater Evapotranspiration Area, Regions, Lowlands, Uplands, and Selected Watersheds in Harney Basin, Southeastern Oregon Selected planform changes between 1989-2010 for the UMR data Great Lakes Wetlands, 1970ish Greater sage-grouse betweenness centrality of fully connected population structure in the western United States Greater sage-grouse population structure (4: coarsest-scaled, tier four) in the western United States Conservation Reserve Program Acreage by County Boat ramp locations in the United States of America