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Folders: ROOT > ScienceBase Catalog > USGS Western Ecological Research Center > Western Ecological Research Center Approved Data Releases > Annual California Sea Otter Census - 2015 Spring Census Summary ( Show all descendants )

Location Folder Show Tree ROOT _ScienceBase Catalog __USGS Western Ecological Research Center ___Western Ecological Research Center Approved Data Releases ____Annual California Sea Otter Census - 2015 Spring Census Summary Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (2) Types Downloadable (2) Map Service (2) Shapefile (2) Contacts M. Tim Tinker William M Perry U.S. Geological Survey - ScienceBase Categories Data (2) Tag Types Theme (2) Place (2) Tag Schemes None (2) ISO 19115 Topic Categories (2) View Results as: JSON ATOM CSV Browse Folder

2015 Census Summary Shapefile The GIS layer "Census_sum_15" 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 2015 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 data, including sea otter density... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Central California Coast, Coast, Southern California Coast, aerial counts, All tags... biota, environment, habitat, oceans, sea otter census, shore counts, trends, Fewer tags 2015 Range Extent Shapefile The GIS layer "Range_extent_15" 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 2015 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 of potential habitat stretching... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Central California Coast, Coast, Southern California Coast, aerial counts, All tags... biota, distribution, environment, oceans, range, sea otter census, sea otters, shore counts, Fewer tags