Desert Tortoise Habitat Categories | |
Data format: ArcInfo Coverage File or table name: dtort_cat Coordinate system: Universal Transverse Mercator Theme keywords: Bureau of Land Management, BLM, National Park Service, NPS, desert, tortoise, habitat, categories, category 1, category 2, category 3, category 4, acec |
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Abstract:
Desert Tortoise habitat categories as described by the 1988 Range-wide Desert Tortoise Plan. This called for BLM offices to identify desert tortoise habitat categories. |
Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.
Desert Tortoise habitat categories as described by the 1988 Range-wide Desert Tortoise Plan. This called for BLM offices to identify desert tortoise habitat categories.
For regional analysis and display at 1:24,000. This dataset was prepared/acquired for use in the ASDO resource management planning process.
Dataset locally known as dtort_cat. This dataset and other datasets in the Arizona Strip District Office Geographic Information Database (ASDOGID) represent data for the BLM Arizona Strip District Office, and may include the Arizona Strip Field Office, Vermilion Cliffs National Monument (VCNM) and/or the Grand Canyon-Parashant National Monument (GCPNM or PARA). The Grand Canyon-Parashant National Monument is managed jointly by the BLM and the National Park Service (NPS). The category designation for the area was based significantly on personal knowledge and manageability of the land.
ground condition
This data should not be used at a scale larger than 1:24,000. The data and corresponding attributes are only as accurate as the source maps from which they were obtained, and may vary depending on the data and method of acquisition. This data is suitable for regional planning, management decision support at intermediate scales (i.e. 1:24,000 or smaller), and cartographic purposes. The data is not suitable for analysis at scales larger than 1:24,000. If the Receiving Agency (RA) has modified the data in any way, they are obligated to describe the types of modifications they have performed on hardcopy maps utilizing the data. RA specifically agrees not to misrepresent ASDOGID datasets or to imply that any changes made were approved by BLM ASDO or NPS. No warranty is made by the BLM/NPS for use of the data for purposes not intended by BLM/NPS. This information may be updated without notification.
345 East Riverside Dr.
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Feature attributes were taken from source material. Code assignments are believed to be representative of the source document.
Data was reviewed for correct topological structure. Duplicate lines have been removed.
This dataset covers the entire BLM Arizona Strip District. It is constantly being reviewed and added to as additional information becomes available.
The data has been vertically integrated to the Arizona BLM Geographic Coordinate Database (GCDB) and to 1:24,000 scale DLG base data, including transportation, hydrology, and powerlines where appropriate. Overall horizontal accuracy for this data is not greater than national mapping accuracy standards (NMAS) for USGS source maps. Snapping and coordinate shift tolerances were maintained at 0.01 meters or less through editing. Horizontal positional accuracy for the digital data set was tested by visual comparison of the source data with hard copy verification plots.
In 1991, standard USGS maps were used to identify areas below 3,600 feet. Then, these areas were categorized based on population data, vegetation, and known habitat conditions. Specific habitat categories were identified based on the categorization data. In 1993, the boundaries were adjusted based on personal knowledge and ground conditions.
345 E. Riverside Dr.
Data file is created and stored in a master file in the computer system.
345 East Riverside Drive
Internal feature number.
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Feature geometry.
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Internal node number for the beginning of an arc (from-node).
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Internal node number for the end of an arc (to-node).
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Internal node number for the left polygon.
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Internal node number for the right polygon.
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Length of feature in internal units.
ESRI
Internal feature number.
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User-defined feature number.
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Internal feature number.
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Feature geometry.
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Area of feature in internal units squared.
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Perimeter of feature in internal units.
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Internal feature number.
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User-defined feature number.
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Identifies areas of desert tortoise habitat
Those areas that support medium to high densities of tortoises, are essential to maintenance of large to high densities of tortoises, and in which management conflicts are resolvable.
Those areas that support medium to high densities, but may be essential to maintenance of viable populations and in which conflicts are resovable.
Those areas that support low to medium density tortoise populations, are not essential to maintenance of viable populations, and where most conflicts are not resolvable.
The exact acreage of each polygon in the dataset.
Identifies whether the area is part of a Desert Wildlife Management Area.
It is part of a Desert Wildlife Management Area
It is not part of a Desert Wildlife Management Area
Attribute items are in typical ArcInfo point, line and polygon format.
345 East Riverside Dr.
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BLM-ASDO and NPS provide this data "as is" without liability. No warranty is made by the Bureau of Land Management or National Park Service as to the accuracy, reliability, or completeness of these data for individual use or aggregate use with other data.
ESRI ArcInfo Coverage
Contact Distributor
Contact Distributor
345 East Riverside Dr.
Please contact by email.