California Potential Plant Species Richness

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: University of California at Davis

Publication_Date: 1997

Title: California Potential Plant Species Richness

Edition:

Geospatial_Data_Presentation_Form: digital data layer

Series_Information:

Series_Name:

Issue_Identification:

Publication_Information:

Publication_Place:

Publisher: University of California, Information Center for the Environment

Other_Citation_Details:

Online_Linkage:

Description:

Abstract:

This layer delineates the geographic subdivisions (to the sub-ecoregion level) of California defined for The Jepson Manual: Higher Plants of California (Hickman, 1993). It also includes elevation boundaries at 500m intervals (derived from the 1:250,000 DEM from USGS). Finally, these sub-ecoregion/elevation zones were combined with native plant species distribution information (as defined in the Jepson Manual) to create a theme indicating native plant species richness within 500m elevation bands of Jepson sub-ecoregions. A digital data layer of Jepson ecoregion boundaries was obtained from the Biogeogrphy Lab at UC Santa Barbara. These regions (10 major ecoregion divisions) were developed for the Jepson flora to aid in describing where plant species were known to occur. The regions were defined by natural features, including broadly defined vegetation types, and geologic, topographic, and climatic variation. The Flora authors relied heavily on the Potential Natural Vegetation map of K?chler (1977) in delineating regions. The Flora included only a page-size representation of the map of three provinces, subdivided into ten regions, but also provided geographic descriptions of the boundaries between regions and subregions. Based on these descriptions, the Biogeography Lab (UC Santa Barbara) digitized the boundaries of the ten regions using 1990 Landsat imagery and ancillary digital data at a 1:100,000 map scale. These regions were used for compiling and analyzing the California Gap Analysis database. The Information Center for the Environment (ICE) GIS lab at UC Davis (within the Division of Environmental Studies) then digitized the sub-ecoregions indicated in the Jepson Manual using a combination of Shaded Relief backdrop and visual interpretation of the map in the Jepson Manual. The sub-ecoregion layer was then unioned with a elevation zone layer (generated from the 1:250,000 Digital Elevation Model from USGS) at 500m intervals. The plant information was compiled using the Jepson Manual description fields indicating elevation ranges and Jepson sub-ecoregions within which the plant is known to occur. An Excel file was compiled (by Botanist Dr. John Hunter) indicating presence for each plant within sub-ecoregion and known elevation ranges. This table was then manipulated in order to obtain a count of species (species richness) for each elevation zone/sub-ecoregion combination. Finally, this information was joined to the coverage described, placed in rank order, and then normalized to between 0 and 1 (with 1 indicating the highest species richness and 0 indicating the lowest).

Purpose:

Not Available

Supplemental_Information:

Not Available

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19900101

Ending_Date: 19901231

Currentness_Reference:Unknown

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -124.5048

East_Bounding_Coordinate: -114.2648

North_Bounding_Coordinate: 41.9886

South_Bounding_Coordinate: 32.4234

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword_Thesaurus: DATA SET LANGUAGE

Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > BIODIVERSITY

Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES RICHNESS

Theme_Keyword: EARTH SCIENCE > BIOSPHERE > VEGETATION > VEGETATION COVER

Theme_Keyword: EARTH SCIENCE > BIOSPHERE > VEGETATION > VEGETATION SPECIES

Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > COMMUNITY DYNAMICS > BIODIVERSITY FUNCTIONS

Theme_Keyword: Potential Plant Species

Theme_Keyword: Plant Information

Theme_Keyword: California

Theme_Keyword: Ecoregions

Theme_Keyword: Jepsen

Theme_Keyword: BIOTA

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA

Access_Constraints: There are no restrictions of access to this dataset. However, the data are subject to revision. To ensure that the user has the latest version, copies should only be obtained from the Information Center for the Environment at UC Davis.

Use_Constraints:

None

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: KAREN BEARDSLEY WILLETT

Contact_Position: TECHNICAL CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Information Center for the Environment

Address: Department of Environmental Science & Policy

Address: University of California

Address: One Shields Ave

City: Davis

State_or_Province: CA

Postal_Code: 95616

Country: USA

Contact_Voice_Telephone: 530-752-5678

Contact_Facsimile_Telephone: 530-752-3350

Contact_Electronic_Mail_Address: kbwillett@ucdavis.edu

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Proof-reading of data attributes against the map published in the Jepson Manual. Each attribute label was confirmed to be a member of the set of valid values, and each map unit has one and only one label. The entire state (except for the offshore islands) is included in one of the sub-ecoregions.

Logical_Consistency_Report:

Not Available

Completeness_Report:

Not Available

Lineage:

Process_Step:

Process_Description:

Not Available

Process_Date: Unknown

Spatial_Reference_Information:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: UC-DAVIS/DES/ICE > Information Center for the Environment , Department of Environmental Science and Policy, University of California, Davis

Contact_Person: KAREN BEARDSLEY WILLETT

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Information Center for the Environment

Address: Department of Environmental Science & Policy

Address: University of California

Address: One Shields Ave

City: Davis

State_or_Province: CA

Postal_Code: 95616

Country: USA

Contact_Voice_Telephone: 530-752-5678

Contact_Facsimile_Telephone: 530-752-3350

Contact_Electronic_Mail_Address: kbwillett@ucdavis.edu

Resource_Description: uc_davis_plantpot

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Not Available

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://ice.ucdavis.edu/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://ice.ucdavis.edu/

Access_Instructions:

Metadata in the format for University of California at Davis, Information Center for the Environment.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://ice.ucdavis.edu/

Access_Instructions:

Map for PlantPlot.

Fees: Not Available

Metadata_Reference_Information:

Metadata_Date: 19970416

Metadata_Review_Date: 20121221

Metadata_Future_Review_Date: 20040829

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: TYLER B. STEVENS

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address

Address: NASA Goddard Space Flight Center

Address: Global Change Master Directory

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Voice_Telephone: (301) 614-6898

Contact_Facsimile_Telephone: 301-614-5268

Contact_Electronic_Mail_Address: Tyler.B.Stevens@nasa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time