Washington Gap Project Mammal Distribution Models

Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:: No statistically valid accuracy assessment for errors of omission and comission was conducted. However, we did a non-random assessment for errors of omission for the amphibians and reptiles, which were modeled in the same way as the mammals. For the amphibians and reptiles, after the initial models were constructed, we used 2,838 new records not used to construct the models to test for errors of omission. These "new" points consisted of museum records that had not been obtained prior to the first modeling attempts, locations from recent studies, and incidental observations. The latter were often reported because the observer knew the specimen was outside or at the edge of its known range. Results were that 96% of the amphibian points and 95% of the reptile points fell within the modeled distributions. Most errors were due to new points falling outside the original modeled range, rather than errors of habitat association. Mammals models tended to be less conservation than herp models with respect to range limits.

Logical_Consistency_Report:

All vertebrate models were based on the same land cover map.

Completeness_Report:

All non-marine mammals known to breed in Washington State were included. Seals, whales, sea otters, and other marine mammals were excluded.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:: The land cover map had a 100-hectare minimum mapping unit, so the models can be no more aspatially accurate than that. In practice, many of the polygons were larger than 100 hectares.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: Not applicable.

Lineage:

Methodology:

Methodology_Type: Step 1: Land Cover Mapping

Methodology_Identifier:

Methodology_Keyword_Thesaurus: None

Methodology_Description:

The first step in creation of the vertebrate models was creation of a land cover map. Land cover map creation is more fully described in the WAGAP land cover metadata. Breifly, the land cover map was created by 1) spectrally clustering TM data from 1991 satellite imagery, 2) On-screen manual digitizing of land cover polygons with the spectrally clustered and colored satellite imagery and ancillary data as a backdrop, and 3) Labeling of land cover polygons with ecoregion, vegetation zone, and current land cover. Current land cover was given as primary cover (the cover occupying the greatest percentage of the polygon) and, if necessary, secondary and tertiary cover.

Methodology_Citation:

Citation_Information:

Originator: Cassidy, K. M.

Publication_Date: 1997

Title:

Land cover of Washington State: Description and management

Geospatial_Data_Presentation_Form: Map

Series_Information:

Series_Name: Gap analysis of Washington State - Final Report
Issue_Identification: Volume 1

Publication_Information:

Publication_Place: Seattle, WA
Publisher:: Washington Cooperative Fish and Wildlife Research Unit, University of Washington

Methodology_Type: Step 2: Location Data Collection

Methodology_Identifier:

Methodology_Keyword_Thesaurus: None
Methodology_Keyword: Habitat matrix
Methodology_Keyword: Habitat association
Methodology_Keyword: Habitat quality modeling

Methodology_Description:

Location data were from a combination of museum records, observations from reliable sources, and record locations gleaned from literature. Locations were specified to within township/range. A total of 23,891 records were collected, of which 22,301 were museum records.

Methodology_Citation:

Citation_Information:

Originator:

Authors: Johnson, R.E. and K.M. Cassidy

Publication_Date: 1997

Title:

Mammals of Washington State: Location data and modeled distributions

Publication_Information:

Publication_Place: Seattle, WA
Publisher:: Washington Cooperative Fish and Wildlife Research Unit

Other_Citation_Details:

Volume 3 of the Washington State Gap Analysis Final Report

Methodology_Type: Step 3: Range delineation

Methodology_Identifier:

Methodology_Keyword_Thesaurus: None
Methodology_Keyword: Vertebrate modeling
Methodology_Keyword: Habitat modeling
Methodology_Keyword: Range limits

Methodology_Description: Range limits were delineated using location data.

Methodology_Citation:

Citation_Information:

Originator: Authors: Johnson, R.E. and K.M. Cassidy

Publication_Date: 1997

Title:

Mammals of Washington State: Location data and modeled distributions

Publication_Information:

Publication_Place: Seattle, WA
Publisher:: Washington Cooperative Fish and Wildlife Research Unit

Other_Citation_Details:

Volume 3 of the Washington State Gap Analysis Final Report

Methodology_Type: Step 4: Habitat Matrix Development

Methodology_Identifier:

Methodology_Keyword_Thesaurus: None
Methodology_Keyword: Habitat quality
Methodology_Keyword: Habitat matrix
Methodology_Keyword: vertebrate modeling

Methodology_Description:

We made a habitat matrix with all possible ecoregion, vegetation zone, and land cover combinations on one side and species on the other. We defined 8 levels of habitat quality: 0-unsuitable; 1-suitable, but qquality unknown (in practice, we never used this); 2-good habitat in a vegetation zone core for that species; 3-adequate habitat in a zone core for that species; 4-suitable habitat in a core zone, if it contains appropriate habitat below our minimum mapping unit (e.g., small wetlands or talus slopes), termed contingently suitable, core zone; 5-good habitat in a peripheral vegetation zone; 6-adequate habitat in a peripheral zone; 7-contingently suitable habitat in a peripleral zone.

Methodology_Citation:

Citation_Information:

Originator: Authors: Johnson, R.E. and K.M. Cassidy

Publication_Date: 1997

Title:

Mammals of Washington State: Location data and modeled distributions

Publication_Information:

Publication_Place: Seattle, WA
Publisher:: Washington Cooperative Fish and Wildlife Research Unit

Other_Citation_Details:

Volume 3 of the Washington State Gap Analysis Final Report

Methodology_Type:

Step 5: Intersection of range limits with appropriate habitat

Methodology_Identifier:

Methodology_Keyword_Thesaurus: None

Methodology_Description:

Range limits were intersected with land cover to select land cover polygons within the species' range limits. From this subset of land cover polygons, the habitat matrix was used to select suitable land cover and to assign a habitat quality code to primary, secondary, and tertiary cover

Methodology_Citation:

Citation_Information:

Originator: Authors: Johnson, R.E. and K.M. Cassidy

Publication_Date: 1997

Title:

Mammals of Washington State: Location data and modeled distributions

Publication_Information:

Publication_Place: Seattle, WA
Publisher:: Washington Cooperative Fish and Wildlife Research Unit

Other_Citation_Details:

Volume 3 of the Washington State Gap Analysis Final Report

Process_Step:

Process_Description:: Mammal models were created by collecting location data, determining range limits, building a habitat matrix based on location data, literature riview, and expert opinion, and intersecting range limits with appropriate habitat in Washington State
Process_Date: 1991

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: State Plane Coordinate System 1927

State_Plane_Coordinate_System:

SPCS_Zone_Identifier: 4602

Lambert_Conformal_Conic:

Standard_Parallel: 45.8333
Longitude_of_Central_Meridian: -120.5
Latitude_of_Projection_Origin: 45.83333
False_Easting: 609601.2192
False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 82.02
Ordinate_Resolution: 82.02

Planar_Distance_Units: Survey Feet

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98

Entity_and_Attribute_Information:

Distribution_Information:

Metadata_Reference_Information:

Metadata_Date: 19981221

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Washington Department of Fish and Wildlife

Contact_Position:

Technical Services Manager - Wildlife Management Program

Contact_Address:

Address_Type: Mailing Address
Address: 600 Capitol Way North
City: Olympia
State_or_Province: Washington
Postal_Code: 98501
Country: USA

Contact_Voice_Telephone: 360-902-2515

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Metadata_Standard_Name:

NBS Content Standards for National Biological Information Infrastructure Metadata

Metadata_Standard_Version:

NBII Draft of June 1997, based on FGDC of June 8, 1994

Metadata_Access_Constraints: None

Metadata_Security_Information:

Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None

Generated by mp on Mon Dec 28 08:52:21 1998