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Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (14) Raster (7) Citation (1) Types Map Service (14) OGC WMS Layer (14) Shapefile (14) GeoTIFF (8) Raster (8) Contacts Jonathan Friedman Anthony L. Everette Cristiana I Falvo Cristiana I.P. Falvo Jennifer R. Miller More... Categories Publication (1) Tag Types Theme (23) Tags (with Scheme=ISO 19115 Topic Category) biota (7) geoscientific information (6) inland waters (6) environment (3) geoscientificinformation (1) View Results as: JSON ATOM CSV

Radio telemetry data on nighttime movements of two species of migratory nectar-feeding bats (Leptonycteris) in Hidalgo County, New Mexico, late-summer 2004 and 2005 These bat location estimates have been reported by Bogan and others (In press) and come in the form of a GIS shape file. Three species of nectar-feeding phyllostomid bats migrate north from Mexico into deserts of the United States (U.S.) each spring and summer to feed on blooms of columnar cacti and century plants (Agave spp). However, the habitat needs of these important desert pollinators are poorly understood. We followed the nighttime movements of two species of long-nosed bats (Leptonycteris yerbabuenae and L. nivalis) in an area of late-summer sympatry at the northern edges of their migratory ranges. We radiotracked bats in extreme southwestern New Mexico during 22 nights over two summers and acquired location... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Animas Mountains, Big Hatchet Mountains, Chihuahuan Desert, Chiroptera, Desert Southwest, All tags... Hidalgo County, New Mexico, Playas Valley, USGS Science Data Catalog (SDC), Wildlife Biology, bats, biota, dispersal, foraging, habitat, migration, movement ecology, radio telemetry, southwestern New Mexico, Fewer tags Shapefiles and Historical Aerial Photographs, Little Missouri River, 1949 7 aerial photographs were taken along the Little Missouri River in 1949. All images were geo-referenced to the 1995 digital orthophoto quarter quadrangles as described by Miller and Friedman (2009). Both the flood plain and active channel of the river were delineated on the 1995 digital orthophoto quadrangles and overlaid on rectified photos. ArcGIS was used to draw the polygons that delineate the flood plain and active channel; the delineation was saved as a SHP file. The separate images (geoTIFFs) can be viewed as a composite along with that year's channel delineation (SHP file) using a geographic information system (GIS) application. Reference: Miller, J.R., and J.M. Friedman. 2009. Influence of flow variability... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Central US, Little Missouri River, McKenzie County, ND, North Dakota, All tags... Theodore Roosevelt National Park, United States, aerial photography, channel adjustment, erosion, flood, flood-plain formation, geoscientific information, inland waters, plains cottonwood, Fewer tags Shapefiles and Historical Aerial Photographs, Little Missouri River, 1958 8 aerial photographs were taken along the Little Missouri River in 1958. All images were geo-referenced to the 1995 digital orthophoto quarter quadrangles as described by Miller and Friedman (2009). Both the flood plain and active channel of the river were delineated on the 1995 digital orthophoto quadrangles and overlaid on rectified photos. ArcGIS was used to draw the polygons that delineate the flood plain and active channel; the delineation was saved as a SHP file. The separate images (geoTIFFs) can be viewed as a composite along with that year's channel delineation (SHP file) using a geographic information system (GIS) application. Reference: Miller, J.R., and J.M. Friedman. 2009. Influence of flow variability... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Central US, Little Missouri River, McKenzie County, ND, North Dakota, All tags... Theodore Roosevelt National Park, United States, aerial photography, channel adjustment, erosion, flood, flood-plain formation, geoscientific information, inland waters, plains cottonwood, Fewer tags Shapefiles and Historical Aerial Photographs, Little Missouri River, 1982 4 aerial photographs were taken along the Little Missouri River in 1982. All images were geo-referenced to the 1995 digital orthophoto quarter quadrangles as described by Miller and Friedman (2009). Both the flood plain and active channel of the river were delineated on the 1995 digital orthophoto quadrangles and overlaid on rectified photos. ArcGIS was used to draw the polygons that delineate the flood plain and active channel; the delineation was saved as a SHP file. The separate images (geoTIFFs) can be viewed as a composite along with that year's channel delineation (SHP file) using a geographic information system (GIS) application. Reference: Miller, J.R., and J.M. Friedman. 2009. Influence of flow variability... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Central US, Little Missouri River, McKenzie County, ND, North Dakota, All tags... Theodore Roosevelt National Park, United States, aerial photography, channel adjustment, erosion, flood, flood-plain formation, geoscientific information, inland waters, plains cottonwood, Fewer tags Shapefiles and Historical Aerial Photographs, Little Missouri River, 1939 8 aerial photographs were taken along the Little Missouri River in 1939. All images were geo-referenced to the 1995 digital orthophoto quarter quadrangles as described by Miller and Friedman (2009). Both the flood plain and active channel of the river were delineated on the 1995 digital orthophoto quadrangles and overlaid on rectified photos. ArcGIS was used to draw the polygons that delineate the flood plain and active channel; the delineation was saved as a SHP file. The separate images (geoTIFFs) can be viewed as a composite along with that year's channel delineation (SHP file) using a geographic information system (GIS) application. Reference: Miller, J.R., and J.M. Friedman. 2009. Influence of flow variability... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Central US, Little Missouri River, McKenzie County, ND, North Dakota, All tags... Theodore Roosevelt National Park, United States, aerial photography, channel adjustment, erosion, flood, flood-plain formation, geoscientific information, inland waters, plains cottonwood, Fewer tags Annual California Sea Otter Census: 2017 Range Extent Shapefile The GIS shapefile "Range extent of southern sea otters 2017" is a simple polyline representing the geographic distribution of the southern sea otter (Enhydra lutris nereis) in mainland California, based on data collected during the spring 2017 range-wide census. The USGS range-wide sea otter census has been undertaken twice a year since 1982, once in May and once in October, using consistent methodology involving both ground-based and aerial-based counts. The spring census is considered more accurate than the fall count, and 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... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Central California Coastal, Coast, Southern California Coastal, aerial counts, All tags... biota, distribution, environment, ocean, range, sea otter census, sea otters, sea otters, shore counts, Fewer tags Shapefiles and Historical Aerial Photographs, Little Missouri River, 2003 Aerial photographs were taken along the Little Missouri River in 2003, however the 2003 IKONOS satellite imagery is proprietary and therefore cannot be served here. The channel delineations for all years, including 2003, and the delineation of the outer flood-plain boundary are stored as shapefiles and are included in this data release. All images were geo-referenced to the 1995 digital orthophoto quarter quadrangles as described by Miller and Friedman (2009). Both the flood plain and active channel of the river were delineated on the 1995 digital orthophoto quadrangles and overlaid on rectified photos. ArcGIS was used to draw the polygons that delineate the flood plain and active channel; the delineation was saved... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Central US, Little Missouri River, McKenzie County, ND, North Dakota, All tags... Theodore Roosevelt National Park, United States, aerial photography, biota, channel adjustment, erosion, flood, flood-plain formation, plains cottonwood, Fewer tags Shapefiles and Historical Aerial Photographs, Little Missouri River, 1974 4 aerial photographs were taken along the Little Missouri River in 1974. All images were geo-referenced to the 1995 digital orthophoto quarter quadrangles as described by Miller and Friedman (2009). Both the flood plain and active channel of the river were delineated on the 1995 digital orthophoto quadrangles and overlaid on rectified photos. ArcGIS was used to draw the polygons that delineate the flood plain and active channel; the delineation was saved as a SHP file. The separate images (geoTIFFs) can be viewed as a composite along with that year's channel delineation (SHP file) using a geographic information system (GIS) application. Reference: Miller, J.R., and J.M. Friedman. 2009. Influence of flow variability... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Central US, Little Missouri River, McKenzie County, ND, North Dakota, All tags... Theodore Roosevelt National Park, United States, aerial photography, biota, channel adjustment, erosion, flood, flood-plain formation, plains cottonwood, Fewer tags Shapefiles and Historical Aerial Photographs, Little Missouri River, pre1939 The pre1939 shapefile displays the boundary between the floodplain and the uplands (a boundary that remains constant), while the 1939-2003 shapefiles (assicated with the geoTIFFs) display both the constant boundary between the floodplain and uplands and the changing boundary between the channel and the floodplain. The pre1939 shapefile is included to represent the floodplain formed before the earliest imagery in 1939. Both the flood plain and active channel of the river were delineated on the 1995 digital orthophoto quadrangles and overlaid on rectified photos. ArcGIS was used to draw the polygons that delineate the flood plain and active channel; the delineation was saved as a SHP file. There are no aerial images... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Central US, Little Missouri River, McKenzie County, ND, North Dakota, All tags... Theodore Roosevelt National Park, United States, aerial photography, biota, channel adjustment, erosion, flood, flood-plain formation, plains cottonwood, Fewer tags Annual California Sea Otter Census: 2017 Census Summary Shapefile The GIS shapefile "Census summary of southern sea otter 2017" provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra lutris nereis), based on data collected during the spring 2017 range-wide census. The USGS range-wide sea otter census has been undertaken twice a year since 1982, once in May and once in October, using consistent methodology involving both ground-based and aerial-based counts. The spring census is considered more accurate than the fall count, and provides the primary basis for gauging population trends by State and Federal management agencies. This Shape file includes a series of summary statistics derived from the raw census... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Central California Coastal, Coast, Southern California Coastal, aerial counts, All tags... biota, distribution, environment, ocean, range, sea otter census, sea otters, sea otters, shore counts, Fewer tags Shapefiles and Historical Aerial Photographs, Little Missouri River, 1995 5 aerial photographs were taken along the Little Missouri River in 1995. All images were geo-referenced to the 1995 digital orthophoto quarter quadrangles as described by Miller and Friedman (2009). Both the flood plain and active channel of the river were delineated on the 1995 digital orthophoto quadrangles and overlaid on rectified photos. ArcGIS was used to draw the polygons that delineate the flood plain and active channel; the delineation was saved as a SHP file. The separate images (geoTIFFs) can be viewed as a composite along with that year's channel delineation (SHP file) using a geographic information system (GIS) application. Reference: Miller, J.R., and J.M. Friedman. 2009. Influence of flow variability... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Central US, Little Missouri River, McKenzie County, ND, North Dakota, All tags... Theodore Roosevelt National Park, United States, aerial photography, channel adjustment, erosion, flood, flood-plain formation, geoscientific information, inland waters, plains cottonwood, Fewer tags Annual California Sea Otter Census: 2017 Extra Limit Observations Shapefile The GIS shapefile "Extra limit counts of southern sea otters 2017" 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 2017 range-wide census. The USGS range-wide sea otter census has been undertaken twice a year since 1982, once in May and once in October, using consistent methodology involving both ground-based and aerial-based counts. The spring census is considered more accurate than the fall count, and provides the primary basis for gauging population trends by State and Federal management agencies. Sea otter distribution in California... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Central California Coastal, Coast, Southern California Coastal, aerial counts, All tags... biota, distribution, environment, ocean, range, sea otter census, sea otters, sea otters, shore counts, Fewer tags Water Coverage Data in Lower Klamath Basin, 1984-2016 Habitat condition, both acres flooded and timing of inundation, were determined using remote sensing images from Landsat 5 and 8 for the Lower Klamath Basin, the representative basin for the southern Oregon and northeast California (SONEC) region. The dataset includes proportional water coverage (acres) for 8,825 distinct patches in Lower Klamath over 6 different time periods (1984-89; 1990-94; 1995-99; 2000-04; 2005-09; 2010-16), with a total of 368,301 acres of possibly foreageable land. Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Klamath, Lower Klamath, Modoc, Oregon, All tags... Siskiyou, climate change, geoscientificInformation, habitats, hydrology, wetland ecosystems, Fewer tags Shapefiles and Historical Aerial Photographs, Little Missouri River, 1966 8 aerial photographs were taken along the Little Missouri River in 1966. All images were geo-referenced to the 1995 digital orthophoto quarter quadrangles as described by Miller and Friedman (2009). Both the flood plain and active channel of the river were delineated on the 1995 digital orthophoto quadrangles and overlain on rectified photos. ArcGIS was used to draw the polygons that delineate the flood plain and active channel; the delineation was saved as a SHP file. The separate images (geoTIFFs) can be viewed as a composite along with that year's channel delineation (SHP file) using ArcGIS, or any other geographic information system (GIS) compatible program. Reference: Miller, J.R., and J.M. Friedman. 2009.... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Central US, Little Missouri River, McKenzie County, ND, North Dakota, All tags... Theodore Roosevelt National Park, United States, aerial photography, channel adjustment, erosion, flood, flood-plain formation, geoscientific information, inland waters, plains cottonwood, Fewer tags