Skip to main content
USGS - science for a changing world
Advanced Search

Filters: Tags: distribution (X)

844 results (67ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
View Results as: JSON ATOM CSV
thumbnail
We revised distribution maps of potential presettlement habitat and current populations for Greater Sage-Grouse (Centrocercus urophasianus) and Gunnison Sage-Grouse (C. minimus) in North America. The revised map of potential presettlement habitat included some areas omitted from previously published maps such as the San Luis Valley of Colorado and Jackson area of Wyoming. Areas excluded from the revised maps were those dominated by barren, alpine, and forest habitats. The resulting presettlement distribution of potential habitat for Greater Sage-Grouse encompassed 1 200 483 km(2), With the species' current range 668 412 km(2). The distribution of potential Gunnison Sage-Grouse habitat encompassed 46 521 km(2), with...
thumbnail
PronghornOverallRange is an ESRI SDE Feature Class showing Overall Range, The area which encompasses all known seasonal activity areas within the observed range of a population of pronghorn antelope. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). Dataset was acquired from a third party distributor who obtained it from CDOW in January 2011. The authoritative data source is available...
thumbnail
MooseConcentrationArea is an ESRI SDE Feature Class showing that part of the range of a species where densities are 200% higher than the surrounding area during a specific season. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). Dataset was acquired from a third party distributor who obtained it from CDOW in January 2011. The authoritative data source is available on ArcGIS.com (http://www.arcgis.com/home/item.html?id=1245503b755346989c938aa250c23648)...
thumbnail
This metadata references the polygonal ARC/INFO GIS cover showing the current and historic distribution of potential habitat, or range, of the Greater Sage-grouse (Centrocercus urophasianus) and Gunnison Sage-grouse (Centrocercus minimus) in Western North America. This data was initially researched and compiled by Dr. Michael A. Schroeder, research biologist for the Washington State Department of Fish and Wildlife. The initial draft of current and historic range data was mapped and submitted to state, federal, or provincial natural resource agencies and other experts for review, comment, and editing. The final product represents the best available science and expert review available at the time of compilation. ...
thumbnail
GPChickenHistoricRange is an ESRI SDE Feature Class showing Colorado greater prairie chicken distribution. Maps are derived from records of lekking sites for greater prairie chickens. Leks may be classified as active, inactive or lek of unknown status. Classification is usually based on knowledge of population fluctuations and/or male attendance; leks are considered to identify important seasonal activity areas nearby. GPChickenHistoricRange is an ESRI shapefile showing areas where greater prairie chickens have been known to occur prior to 1955 (taken from Aldrich and Duvall, 1955). This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays...
thumbnail
The source of this coverage data set is the fish biodiversity maps created for The Nature Conservancy (TNC) as part of their Hexagon Project. Professor Peter Moyle and his graduate student, Paul Randall, of the Department of Wildlife and Fisheries Conservation Biology at the University of California, Davis were hired to produce range maps for all known fish species that presently occur in California. Each coverage denotes a separate fish species (refer to the species coverage key below). The polygons are estimated to be accurate at a scale of roughly 1:1,000,000. Other California fish species distributions can be found in a gallery at: http://app.databasin.org/app/pages/galleryPage.jsp?id=099b47b7394f47b6b42764829e8a8f09
thumbnail
This metadata references the polygonal ARC/INFO GIS cover showing the current and historic distribution of potential habitat, or range, of the Greater Sage-grouse (Centrocercus urophasianus) and Gunnison Sage-grouse (Centrocercus minimus) in Western North America. This data was initially researched and compiled by Dr. Michael A. Schroeder, research biologist for the Washington State Department of Fish and Wildlife. The initial draft of current and historic range data was mapped and submitted to state, federal, or provincial natural resource agencies and other experts for review, comment, and editing. The final product represents the best available science and expert review available at the time of compilation. ...
thumbnail
PtarmiganOverallRange is an ESRI SDE Feature Class showing Overall Range for White-Tailed Ptarmigan (Lagopus leucurus) in Colorado. Overall Range is defined as the probable range of White-tailed Ptarmigan in Colorado as determined from the following criteria: Areas greater than 10,800 feet in elevation; Colorado GAP vegetation types Mixed Tundra, Meadow Tundra, Prostrate Shrub Tundra, Bare Ground Tundra, Exposed Rock, Shrub Dominated Wetland/Riparian, and Graminoid/Forb Dominated Wetland. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard...
thumbnail
MtnGoatMineralLick is an ESRI SDE Feature Class showing sites of Mineral Licks used by Mountain Goat (Oreamnos americanus) in Colorado. Mineral Licks are defined as specific natural sites known to be utilized as lick areas by Mountain Goats. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). Dataset was acquired from a third party distributor who obtained it from CDOW in January 2011. The...
thumbnail
This dataset represents presence of white pine (Pinus strobus) at year 100 (2095) from a single model run of LANDIS-II. The simulation assumed Intergovernmental Panel on Climate Change (IPCC) B2 emissions (moderate) and used the Hadley 3 global circulation model. Contemporary harvest rates and intensities were simulated.
thumbnail
This digital range map represents the range of Colorado pinyon pine (Pinus edulis) in western North America. Data from multiple sources, including existing digitized maps, tabular data, personal communications, USDA Forest Service Inventory and Analysis data, and figures from other publications, were synthesized to create a single digital distribution. The distribution was peer reviewed and iteratively revised based on personal observations of regional authorities.
thumbnail
The spring 2017 mainland sea otter count began on April 30, and although the shore-based counts were completed by May 12, 2017, the aerial counts were not completed until July 12, 2017. Overall viewing conditions this year were good, although not as good as conditions experienced during the 2016 spring census (View Score 2.4 versus 3.1, where 0=poor, 1=fair, 2=good, 3=very good, and 4=excellent). The surface canopies of kelp (Macrocystis sp.) were considered by most participants to be considerably below normal for this time of year in most areas of the mainland range. Sea otters along the mainland coast were surveyed from Pillar Point in San Mateo County in the north to Rincon Point in the south at the Santa Barbara/Ventura...
thumbnail
The source of this coverage data set is the fish biodiversity maps created for The Nature Conservancy (TNC) as part of their Hexagon Project. Professor Peter Moyle and his graduate student, Paul Randall, of the Department of Wildlife and Fisheries Conservation Biology at the University of California, Davis were hired to produce range maps for all known fish species that presently occur in California. Each coverage denotes a separate fish species (refer to the species coverage key below). The polygons are estimated to be accurate at a scale of roughly 1:1,000,000. Other California fish species distributions can be found in a gallery at: http://app.databasin.org/app/pages/galleryPage.jsp?id=099b47b7394f47b6b42764829e8a8f09


map background search result map search result map Distribution of Sage-Grouse in North America Range Map of Colorado Pinyon Pine (Pinus edulis), Edition 2 Rough sculpin (Cottus asperrimus) distribution in California as of 2002 Pronghorn Antelope Overall Range in Colorado, USA Mountain Goat Mineral Lick Moose Concentration Area Greater Prairie Chicken Historic Range White-tailed Ptarmigan Overall Range Current Distribution of the Sage-grouse in North America Historic Distribution of the Sage-grouse in North America Pacific lamprey (Lampetra tridentata) distribution in California as of 2002 Minnesota (USA) Climate Change Project: White Pine at Year 100 (2095), assuming emissions scenario B2, Hadley3 GCM, contemporary harvest rates and intensity Annual California Sea Otter Census—2017 Spring Census Summary Rough sculpin (Cottus asperrimus) distribution in California as of 2002 Mountain Goat Mineral Lick Annual California Sea Otter Census—2017 Spring Census Summary Minnesota (USA) Climate Change Project: White Pine at Year 100 (2095), assuming emissions scenario B2, Hadley3 GCM, contemporary harvest rates and intensity Greater Prairie Chicken Historic Range Moose Concentration Area White-tailed Ptarmigan Overall Range Pronghorn Antelope Overall Range in Colorado, USA Pacific lamprey (Lampetra tridentata) distribution in California as of 2002 Range Map of Colorado Pinyon Pine (Pinus edulis), Edition 2 Current Distribution of the Sage-grouse in North America Historic Distribution of the Sage-grouse in North America Distribution of Sage-Grouse in North America