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BLM REA CBR 2010 & MBR - Invasives Training Points: Annual Grasses


Identification Information:
Citation:
Citation Information:
Online Linkage: https://landscape.blm.gov/CBR_2010_layerpackages/CBRMBR_IV_LFPoints_AnnualGrass_pt.lpk
Originator: NatureServe
Publication Date: 20130315
Title: BLM REA CBR 2010 & MBR - Invasives Training Points: Annual Grasses
Publication Information:
Publication Place: Boulder, CO
Publisher: NatureServe
Online Linkage: http://www.natureserve.org/
Description:
Abstract: The Annual Grass model is comprised of a mosaic of five separate continuous models representing separate thresholds of absolute cover. All training and validation data were acquired from the July 2011 update of the LANDFIRE Public Sample points data set. A total of 7031 samples were identified as having an invasive annual grass component within the overall species composition of the sample site. A total of 25 separate species were identified within the sample sites, of which 77% of the total samples were comprised of Cheatgrass (Bromus tectorum). A total of 94% of all samples are comprised of three species when cheatgrass was combined with Red Brome (Bromus madritensis) and Mediterranean Grass (Schismus barbatus). Bromus rubens and B. madritensis were listed separately in the data; the NRCS PLANTS database recognizes both as valid taxa, although B. madritensis ssp. rubens is now considered part of B. rubens. The records in the database did not distinguish between B. madritensis ssp. rubens, and B. madritensis. Since all of these sample points were combined into one dataset for the modeling purposes, this taxonomic uncertainty is not problematic. See "Process Step" for additional details.
Purpose: This dataset was used as training points for the Annual Grass model.
Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 20130315
Currentness Reference: publication date
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -120.0165541
East Bounding Coordinate: -111.42796
North Bounding Coordinate: 42.38525834
South Bounding Coordinate: 33.76229791
Keywords:
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Category
Theme Keyword: biota
Theme:
Theme Keyword Thesaurus: BLM-Theme
Theme Keyword: Vegetation
Theme Keyword: Geospatial
Theme:
Theme Keyword Thesaurus: BLM-REA
Theme Keyword: CBR 2010
Theme Keyword: Central Basin and Range
Place:
Place Keyword Thesaurus: BLM-State
Place Keyword: California
Place Keyword: Idaho
Place Keyword: Nevada
Place Keyword: Utah
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: DOI
Theme Keyword: Bureau of Land Management
Theme Keyword: BLM
Theme Keyword: Rapid Ecoregional Assessment
Theme Keyword: REA
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Category
Theme Keyword: biota
Theme:
Theme Keyword Thesaurus: BLM-THEME
Theme Keyword: Vegetation
Place:
Place Keyword Thesaurus: BLM-STATE
Place Keyword: Arizona
Place Keyword: California
Place Keyword: Idaho
Place Keyword: Nevada
Place Keyword: Oregon
Place Keyword: Utah
Point of Contact:
Contact Information:
Contact Person Primary:
Contact Person: Jon Hak
Contact Organization: NatureServe
Contact Position: Ecologist/Senior GIS Analyst
Contact Address:
Address Type: mailing and physical address
Address: 2108 55th Street, Suite 220
City: Boulder
State or Province: CO
Postal Code: 80301
Country: Unknown
Contact Voice Telephone: (703) 797-4809
Contact Facsimile Telephone: (720) 506-3295
Contact Electronic Mail Address: jon_hak@natureserve.org
Contact Instructions: http://www.natureserve.org/
Security Information:
Security Classification: None
Security Handling Description: None
Security Classification System: None
Access Constraints: None, these data are considered public domain
Use Constraints: 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. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived, and both scale and accuracy may vary across the data set. 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. These data are neither legal documents nor land surveys, and must not be used as such. Official records may be referenced at most BLM offices. Please report any errors in the data to the BLM office for which it was obtained. The BLM should be cited as the data source in any products derived from these data. Any Users wishing to modify the data should describe the types of modifications they have performed. The User should not misrepresent the data, nor imply that changes made were approved or endorsed by BLM. This information may be updated without notification.
Data Quality Information:
Lineage:
Process Step:
Process Description: Invasive Annual Grasses present within the combined CBR and MBR region. Invasive Grass Species (Sample Count) Aegilops cylindrica (2) Avena barbata (5) Avena fatua (3) Bromus diandrus (27) Bromus hordeaceus (8) Bromus hordeaceus ssp. hordeaceus (2) Bromus japonicus (3) Bromus madritensis (603) Bromus rubens (335) Bromus tectorum (5388) Echinochloa crus-galli (1) Eragrostis cilianensis (5) Hordeum murinum (7) Hordeum murinum ssp. leporinum (11) Hordeum vulgare (2) Poa annua (3) Polypogon monspeliensis (1) Schismus arabicus (5) Schismus barbatus (580) Secale cereale (8) Sorghum bicolor (1) Taeniatherum caput-medusae (5) Triticum aestivum (20) Vulpia myuros (5) Zea mays (1) Grand Total (7031) The majority of sample points are comprised of a single species of annual grass, but 375 points contain between 2-7 species per sample site. The final sample plot total includes 6622 samples plots with the majority of the samples in the Category 1 and Category 2 levels of density. Sample size per percent cover category. Annual Grass Category; Sample Count; Minimum Cover; Maximum Cover; Average Cover 1- less than 5%; 3674; 0.02; 5.00; 2.62 2 - 5-15%; 1434; 5.20; 15.00; 10.82 3 - 15-25%; 635; 15.50; 25.00; 21.03 4 - 25-45%; 554; 27.00; 45.00; 34.62 5 - greater than 45%; 325; 49.90; 100.00; 64.30 Grand Total; 6622; 0.02; 100.00; 11.87 The bulk of high density sites are located within the CBR boundary; only 20% of the overall sample points occur within the MBR region; and 98% of the >45% cover of annual grasses category are in CBR. Proportionally, the Category 1 points are evenly distributed throughout both ecoregions equally with 35% of the points occurring within the MBR.
Process Date: 2012
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Unknown
Contact Person: Unknown
Contact Position: Unknown
Contact Address:
Country: Unknown
Address Type: Unknown
Address: Unknown
City: Unknown
State or Province: Unknown
Postal Code: Unknown
Contact Voice Telephone: Unknown
Source Information:
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: Unknown
Source Currentness Reference: Unknown
Source Citation Abbreviation: Unknown
Source Citation:
Citation Information:
Originator: Unknown
Publication Date: Unknown
Title: Unknown
Source Scale Denominator: Unknown
Type of Source Media: Unknown
Source Contribution: Unknown
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report: Unknown
Vertical Positional Accuracy:
Vertical Positional Accuracy Report: Unknown
Logical Consistency Report: Unknown
Completeness Report: Unknown
Attribute Value Accuracy Information:
Attribute Accuracy Report: Unknown
Spatial Data Organization Information:
Indirect Spatial Reference: CBR & MBR
Direct Spatial Reference Method: Point
Spatial Reference Information:
Horizontal Coordinate System Definition:
Geodetic Model:
Semi-major Axis: 6378137.0
Horizontal Datum Name: D North American 1983
Denominator of Flattening Ratio: 298.257222101
Ellipsoid Name: GRS 1980
Planar:
Map Projection:
Albers Conical Equal Area:
False Northing: 0.0
Standard Parallel: 29.5
Standard Parallel: 45.5
False Easting: 0.0
Longitude of Central Meridian: -96.0
Latitude of Projection Origin: 23.0
Map Projection Name: Albers Conical Equal Area
Planar Coordinate Information:
Coordinate Representation:
Abscissa Resolution: 0.0001
Ordinate Resolution: 0.0001
Planar Distance Units: meters
Planar Coordinate Encoding Method: coordinate pair
Entity and Attribute Information:
Detailed Description:
Entity Type:
Entity Type Label: Locations of samples containing invasive annual grasses.
Entity Type Definition Source: NatureServe
Entity Type Definition: Unknown
Attribute:
Attribute Definition: Unknown
Attribute Label: Unknown
Overview Description:
Entity and Attribute Overview: All training and validation data were acquired from the July 2011 update of the LANDFIRE Public Sample points data set, all geo-referenced. A total of 7031 samples were identified as having an invasive annual grass component within the overall species composition of the sample site. A total of 25 separate species were identified within the sample sites. The majority of sample points are comprised of a single species of annual grass, but 375 points contain between 2-7 species per sample site. Density (cover) within samples with multiple annual grass species was combined. The final sample plot total includes 6622 samples plots with the majority of the samples in the Category 1 (<5% cover) and Category 2 (5-15% cover) levels of density.
Distribution Information:
Standard Order Process:
Digital Form:
Digital Transfer Option:
Online Option:
Access Instructions: Download from Landscape Approach Data Portal
Computer Contact Information:
Network Address:
Network Resource Name: https://landscape.blm.gov/CBR_2010_layerpackages/CBRMBR_IV_LFPoints_AnnualGrass_pt.lpk
Digital Transfer Information:
Format Specification: Varies
File Decompression Technique: No compression applied
Format Name: ESRI Layer Package (LPK)
Fees: N/A
Ordering Instructions: Download from Landscape Approach Data Portal
Distribution Liability: The BLM assumes no responsibility for errors or omissions. No warranty is made by the BLM as to the accuracy, reliability, or completeness of these data for individual use or aggregate use with other data; nor shall the act of distribution to contractors, partners, or beyond, constitute any such warranty for individual or aggregate data use with other data. Although these data have been processed successfully on computers of BLM, no warranty, expressed or implied, is made by BLM regarding the use of these data on any other system, or for general or scientific purposes, nor does the fact of distribution constitute or imply any such warranty. In no event shall the BLM have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of the use or reliance on the geographic data or arising out of the delivery, installation, operation, or support by BLM.
Technical Prerequisites: ESRI ArcGIS software, version 10.0 or greater
Resource Description: Downloadable Data
Available Time Period:
Time Period Information:
Single Date/Time:
Calendar Date: 2013
Distributor:
Contact Information:
Contact Address:
Postal Code: 80225-0047
Address: Building 50, Denver Federal Center
Address: P.O. Box 25047
City: Denver
Address Type: mailing and physical address
State or Province: Colorado
Country: USA
Contact Electronic Mail Address: blm_oc_rea_data_portal_feedback_team@blm.gov
Contact Voice Telephone: Please email
Contact Position: Resource Programs Data Coordinator, OC-530
Contact Organization Primary:
Contact Organization: Bureau of Land Management
Metadata Reference Information:
Metadata Date: 20160720
Metadata Contact:
Contact Information:
Contact Person Primary:
Contact Person: Lynn Kutner
Contact Organization: NatureServe
Contact Position: Conservation Data Analyst
Contact Address:
Address Type: mailing and physical address
Address: 2108 55th Street, Suite 220
City: Boulder
State or Province: CO
Postal Code: 80301
Country: Unknown
Contact Voice Telephone: (703) 797-4804
Contact Facsimile Telephone: (720) 506-3295
Contact Electronic Mail Address: lynn_kutner@natureserve.org
Contact Instructions: http://www.natureserve.org/
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Review Date: 20130315
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