Filters: Tags: Bald eagle (X)
28 results (40ms)|
Filters
Date Range
Extensions Types Contacts
Categories Tag Types Tag Schemes |
The mission of the USGS Gap Analysis Program (GAP) is to provide state, regional and national biodiversity assessments of the conservation status of native vertebrate species and natural land cover types and to facilitate the application of this information to land management activities. Species distribution models are used to conduct a biodiversity assessment for species across the U.S. The goal of GAP is to keep common species common by identifying species and plant communities not adequately represented in existing conservation lands. Common species are those not currently threatened with extinction. By providing these data, land managers and policy makers can make better-informed decisions when identifying priority...
Agricultural areas data were extracted from the REA Cropland data layer and analyzed to determine the distance from Bald eagle potential suitable habitat. The quality of a HUC in relation to distance to agricultural areas was defined as good (3), fair (2), or poor (1). The score indicates the threat level for each attribute. A low score indicates a low threat, a medium score indicates a medium threat, and a high score indicates a high threat to the species. The values for each score were characterized in relation to distance from agricultural areas by >5km = good, 1-5km = fair, and
Foraging habitat extent was derived from National Hydrological Dataset data to determine the extent of Bald eagle potential suitable habitat. The quality of a HUC in relation to habitat was defined as good (3), fair (2), or poor (1). The score indicates the threat level for each attribute. A low score indicates a low threat, a medium score indicates a medium threat, and a high score indicates a high threat to the species. The values for each score were characterized in relation to foraging habitat by open water edge (lake, reservoir); low-gradient perennial stream = good, other aquatic feature (high gradient stream, wetland, spring; non-perennial stream) = fair, and other NHD Type = poor.
GAP modeled summer, winter and year round distribution of Bald Eagle. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. The BLM should be cited as the data source in any products derived from these data.
Road densities derived from the TIGER data were analyzed to determine the relationship between road density and Bald eagle potential suitable habitat. The quality of a HUC in relation to road density was defined as good (3), fair (2), or poor (1). The score indicates the threat level for each attribute. A low score indicates a low threat, a medium score indicates a medium threat, and a high score indicates a high threat to the species. The values for each score were characterized in relation to road density by >10 km/km2 = good, 5-10 km/km2 = fair, and 2 = poor.
Nationwide counts of eagles were coordinated by the National Wildlife Federation from 1979 until 1992, when the Bureau of Land Management's Raptor Research and Technical Assistance Center assumed responsibility for overseeing the count. Responsibility for count coordination was transferred to the National Biological Survey (1993-1996) and later assumed by the U.S. Geological Survey (USGS), Forest and Rangeland Ecosystem Science Center, Snake River Field Station. In April 2007, the USGS established a partnership with the U.S. Army Corps of Engineers (USACE) to maintain the long-term, national coordination of the survey, data analysis, and reporting. Observers conduct surveys on predetermined routes during the first...
Foraging habitat extent was derived from National Hydrological Dataset data to determine the extent of Bald eagle potential suitable habitat. The quality of a HUC in relation to habitat was defined as good (3), fair (2), or poor (1). The score indicates the threat level for each attribute. A low score indicates a low threat, a medium score indicates a medium threat, and a high score indicates a high threat to the species. The values for each score were characterized in relation to foraging habitat by open water edge (lake, reservoir); low-gradient perennial stream = good, other aquatic feature (high gradient stream, wetland, spring; non-perennial stream) = fair, and other NHD Type = poor.
Agricultural areas data were extracted from the REA Cropland data layer and analyzed to determine the distance from Bald eagle potential suitable habitat. The quality of a HUC in relation to distance to agricultural areas was defined as good (3), fair (2), or poor (1). The score indicates the threat level for each attribute. A low score indicates a low threat, a medium score indicates a medium threat, and a high score indicates a high threat to the species. The values for each score were characterized in relation to distance from agricultural areas by >5km = good, 1-5km = fair, and
|
|
