Data format: Shapefile
File or table name: torthab
Coordinate system: Universal Transverse Mercator
Theme keywords: tortoise, desert tortoise, BLM, Bureau of Land Management, biota, Wildlife
| Desert Tortoise Habitat - BLM Lake Havasu Field Office, portions of Arizona and California | |
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Data format: Shapefile File or table name: torthab Coordinate system: Universal Transverse Mercator Theme keywords: tortoise, desert tortoise, BLM, Bureau of Land Management, biota, Wildlife |
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Abstract:
Digitized vector data of Desert Tortoise (gopherus agassizii suitable habitat in BLM Lake Havasu Field Office, Arizona and California.
Digitized from 1:100,000 scale manuscripts prepared by Field Office Wildlife Specialists or digitized on-screen and edited at 1:100,000 scale or larger by GIS specialists. The criteria used included elevation, terrain, climate and vegetation. |
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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.
Digitized vector data of Desert Tortoise (gopherus agassizii suitable habitat in BLM Lake Havasu Field Office, Arizona and California. Digitized from 1:100,000 scale manuscripts prepared by Field Office Wildlife Specialists or digitized on-screen and edited at 1:100,000 scale or larger by GIS specialists. The criteria used included elevation, terrain, climate and vegetation.
To take advantage of GIS technology for data analysis, land use planning, and hard copy maps
Dataset locally known as torthab.shp. This dataset and other datasets in the Lake Havasu Field Office Geographic Information Database represent data for the BLM Lake Havasu Field Office.
publication date
This data should not be used at a scale larger than 1:100,000. 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. 1:100,000 or smaller), and cartographic purposes. The data is not suitable for analysis at scales larger than 1:100,000. 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 LHFO datasets or to imply that any changes made were approved by BLM LHFO. No warranty is made by the BLM for use of the data for purposes not intended by BLM. This information may be updated without notification.
2610 Sweetwater Ave
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.
Data currently considered complete.
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.
Digitized from 1:100,000 scale manuscripts prepared by Field Office Wildlife Specialists. The criteria used included elevation, terrain, climate and vegetation.
Modified torthab_p to show Mojave desert tortoise habitat on BLM lands on the California side of Lake Havasu Field Office.
2610 Sweetwater Ave
Added Moj3 to the LABEL field to show the Mojave habitat on the California side as Category 3. Updated Metadata.
2610 Sweetwater Ave
Metadata updated for Approve RMP.
Dataset reprojected from NAD 1927 UTM Zone 12 to NAD 1983 UTM Zone 12 using NADCON. Metadata updated.
Internal feature number.
ESRI
Feature geometry.
ESRI
The name given to the area based on local geographic or manmade features plus the category number (1, 2 or 3). Some polygons only have the category number.
BLM Field Offices
1. Habitat Area essential to maintenance of large, viable populations. 2. Conflicts are resolvable. 3. Medium to high density or low density contiguous with medium or high density. 4. Increasing, stable, or decreasing population.
BLM
1. Habitat Area may be essential to maintenance of viable population. 2. Most conflicts are resolvable. 3. Medium to high density or low density contigous with medium or high density. 4. Stable or decreasing population.
BLM
1. Habitat Area not essential to maintenance of viable populations. 2. Most conflicts not resolvable. 3. Low to medium density not contigous with medium or high density. 4. Stable or decreasing population.
BLM
Catogory 3 habitat for Mojave Desert Tortoise
BLM
Areas that are not desert tortoise habitat
BLM
The number of acres in each polygon.
Attribute items are in typical ArcInfo point, line and polygon format.
2610 Sweetwater Ave
No warranty is made by the Bureau of Land Management for use of data for purposes not intended by BLM. Users must assume responsibility to determine the appropriate use of these data. These boundaries should not be used for LEGAL definitions.
Shapefile or ESRI ArcInfo Coverage
Contact Distributor
Contact Distributor
2610 Sweetwater Ave