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Field Plots Data FAQ Metadata

Frequently-anticipated questions:


What does this data set describe?

    Title:
    Isle Royale National Park, Field Plots Data Base for Vegetation Mapping
    Abstract:
    Vegetation field plots at Isle Royale National Park were visited, described, and documented in a digital database. The database consists of 2 parts - (1) Physical Descriptive Data and (2) Species Listings.
    Supplemental_Information:
    Isle Royale National Park was authorized on March 3, 1931; it was formally established in 1940, and officially dedicated in 1946. Most of the park's land area (98%) was designated as a Wilderness area in October 1976, and later additions increased the total Wilderness to 99% of the park. The park was designated an International Biosphere Reserve in 1980.

  1. How should this data set be cited?

    U.S. Geological Survey Department of the Interior, 199808, Isle Royale National Park, Field Plots Data Base for Vegetation Mapping: USGS-NPS Vegetation Mapping Program Isle Royale National Park, USGS, Biological Resources Division, Center for Biological Informatics, Denver, CO.

    Online Links:

    Other_Citation_Details:
    Created in part by Environmental Systems Research Institute, Inc. Redlands, CA under contract from USGS/BRD/CBI.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -89.125
    East_Bounding_Coordinate: -88.4
    North_Bounding_Coordinate: 48.2
    South_Bounding_Coordinate: 47.8
    Description_of_Geographic_Extent:
    Isle Royale National Park, Michigan and environs. Isle Royale National Park is an archipelago of islands located in the northwestern region of Lake Superior close to the United States-Canada border. The park is located about 60 miles northwest of MichiganÂ’s Keweenaw Peninsula, about 22 miles east of Grand Portage, Minnesota, and about 35 miles southeast of Thunder Bay, Ontario.

  3. What does it look like?

    <http://biology.usgs.gov/npsveg/isro/images/isroplots.pdf> (PDF)
    Locations of vegetation plot samples; low resolution for web browsing.

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: Jun-1997
    Ending_Date: Sep-1997
    Currentness_Reference:
    Ground Condition and as written in report: Plot sampling was conducted from June 4, 1997 to September 23, 1997.

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: Database

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a vector data set.

    2. What coordinate system is used to represent geographic features?

      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 16
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.9996
      Longitude_of_Central_Meridian: -105
      Latitude_of_Projection_Origin: 0
      False_Easting: 0
      False_Northing: 0

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 100
      Ordinates (y-coordinates) are specified to the nearest 100
      Planar coordinates are specified in Meters

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodedic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.
      The flattening of the ellipsoid used is 1/298.257.

  7. How does the data set describe geographic features?

    Entity_and_Attribute_Overview:
    Each of 182 vegetation plots has attributes for physical description, species and strata. Physical description - (Plot number, plot code, common name, scientific name, state, park name, quad name, utm zone, map project, gps file, raw utm x, raw utm y, corrected utm x, corrected utm y, surveyors date, surveyors, length, width, photos, permenant, elevation, slope, aspect, topographical position, landform, surficial geology, cowardin system type, hydrography, bedrock, large rock, small rock, sand, litter duff, wood, bare soil, other soil, soil texture, soil drainage, leaf phenology, leaf type, and physiololgy). Species - (sp_code is a project specific code for each species found, species is the scientific name for that species, spcover is the species present and the percent cover for each species, plant code is the first two letters of the genus and first two letters of the species. If the code are not unique a number is added to make the code unique). Strata - (height and cover are average percent cover of that particular species, 1 = 0-10%, 2 = 10-25%, 3 = 25-60% and 4 = 60-100%, pstrata is the type of vegetation, T1 = emergent, T2 = canopy, T3 = sub-canopy, S1 = tall shrub, S2 = short shrub, H = herbaceous, N = non-vascular, V = vine/liana, and E = epiphyte).
    Entity_and_Attribute_Detail_Citation:
    Field Methods for Vegetation mapping, December 1994. Prepared for: the United States Department of the Interior, National Biological Survey (now the USGS Biological Resources Division) and the National Park Service. Prepared by: The Nature Conservancy, and Environmental Systems Research Institute. <http://biology.usgs.gov/npsveg/fieldmethods/index.html>.

  8. What biological taxa does this data set concern?

    Taxonomy:
    Keywords/Taxon:
    Taxonomic_Keyword_Thesaurus: None
    Taxonomic_Keywords: vegetation classification
    Taxonomic_Keywords: Standardized National Vegetation Classification System
    Taxonomic_Keywords: alliance
    Taxonomic_Keywords: community association
    Taxonomic_Keywords: plant communities
    Taxonomic_System:
    Classification_System/Authority:
    Classification_System_Citation:
    Citation_Information:
    Originator:
    United States Department of the Interior, National Biological Survey and National Park Service
    Publication_Date: 19941101
    Title: Standardized National Vegetation Classification System
    Edition: Version 1
    Geospatial_Data_Presentation_Form: Document - Classification System
    Series_Information:
    Series_Name: NBS/NPS Vegetation Mapping Program
    Issue_Identification: Final Draft
    Publication_Information:
    Publication_Place: Redlands, California
    Publisher: ESRI
    Other_Citation_Details:
    Created under contract to the USGS-BRD-CBI by The Nature Conservancy.
    Taxonomic_Procedures:
    Vegetation associations were identified; no specimens nor vouchers were collected as a part of this process.
    Taxonomic_Completeness:
    Conforms with FGDC standardized vegetation classification system.
    Taxonomic_Classification:
    Taxon_Rank_Name: Kingdom
    Taxon_Rank_Value: Plantae
    Applicable_Common_Name: plants


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

    • U.S. Geological Survey Department of the Interior

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    USGS Biological Resources Division, Center for Biological Informatics
    c/o USGS-NPS Vegetation Mapping Program Coordinator
    USGS
    Denver, Colorado 80225-0046
    USA

    (303) 202-4220 (voice)
    303-202-4229 (FAX)
    gs-b-npsveg@usgs.gov


Why was the data set created?

The vegetation plots were used to describe the vegetation in and around Wind Cave National Park and to assist in developing a final mapping classification system.

Provide National Parks with the necessary tools to effectively manage their natural resources. Plot data are collected and analyzed to develop a classification (using the Standardized National Vegetation Classification System) and description of vegetation types in preparation for photointerpretation and mapping of the Park's vegetation types.


How was the data set created?

  1. What methods were used to collect the data?

    Method 0 of 1
    Type: Field

    Field sampling using releve plots

  2. From what previous works were the data drawn?

    SNVCS protocol document (source 1 of 3)
    National Biological Survey (Now USGS/Biological Resources Division), and and National Park Service, 199411, Standardized National Vegetation Classification System; protocol document for the USGS-NPS Vegetation mapping Program: USGS-NPS Vegetation Mapping Program Protocol documents, USGS/BRD, Center for Biological Informatics, Denver, CO.

    Online Links:

    Other_Citation_Details:
    Report prepared under contract by The Nature Conservancy, 1815 N. Lynn Street, Arlington, Virginia 22209 and Environmental Systems Research Institute, 380 New York Street, Redlands, California 92373
    Type_of_Source_Media: Online
    Source_Contribution:
    This document describes and defines the vegetation classification system which is to be used for describing and mapping the vegetation at Isle Royale National Park

    isro sample and classification (source 2 of 3)
    USGSBRD, Center for Biological Informatics, 20000909, Classification of the Vegetation of Isle Royale National Park: USGS-NPS Vegetation Mapping Program Isle Royale National Park, USGS/BRD, Center for Biological Informatics, Denver, CO.

    Online Links:

    Other_Citation_Details:
    This report was generated by The Nature Conservancy under contract to the USGS/BRD, Center for Biological Informatics
    Type_of_Source_Media: Online
    Source_Contribution: Report summarizing plot data collection effort

    field methods protocol document (source 3 of 3)
    United States Dept. of the Inte, National Biological Survey (now USGS Bio, 199412, Field Methods for Vegetation Mapping: USGS/Biological Resources Division, Center for Biological Informatics, Denver, CO.

    Online Links:

    Other_Citation_Details:
    This report was generated by The Nature Conservancy under contract to the USGS/BRD, CBI
    Type_of_Source_Media: Online
    Source_Contribution:
    This document defines the methods and protocols for field data collection to be used as part of the USGS-NPS Vegetation Mapping Program

  3. How were the data generated, processed, and modified?

    Date: 09-Sep-1999 (process 1 of 1)
    The following describes the tasks performed by The Nature Conservancy to produce descriptive data for 182 vegetation sampling plots in two separate database files. The second of the three contains listings of individual species found in each plot, along with height and cover estimates, and strata delineations. The SPECIES LISTING database contains line entries for each species including the Plot Code, Numeric species code, full scientific species name, cover estimate, a unique alphnumeric species identifier (plant code), listings of individual strata found in each plot, along with cover estimates and height (strata) delineations. The STRATA LISTING database contains line entries for each strata including the Plot Code, full species name, height, cover, and Strata delineation. Plot sites were selected subjectively because of the heterogeneity of the vegetation and the small number of samples per type. Since aerial photos were not available at the time of plot selection, visual reconnaissance was conducted at the summit of the bluff to examine vegetation patterns for the purpose of plot placement. Plot data were manually recorded on field forms on-site, and subsequently keyed into the database files described herein. Information in the plot database was then used to develop the classification system and plant identification keys contained in the ISLE ROYALE SAMPLING AND CLASSIFICATION REPORT.

    Person who carried out this activity:

    Jim Drake
    The Association for Biodiversity Information
    Vegetation Program Manager
    1313 5th Street SE
    Minneapolis, MN 55414
    USA

    612-331-0729 (voice)
    jdrake@abi.org

    Data sources used in this process:
    • SNVCS protocol document
    • Field Methods for Vegetation Mapping

    Data sources produced in this process:

    • isro sample and classification
    • isro Vegetation Descriptions

  4. What similar or related data should the user be aware of?

    U.S. Geological Survey, Department of the Interior, 19990909, Isle Royale National Park, Plot Database: USGS-NPS Vegetation Mapping Program Isle Royale National Park, USGS, Biological Resources Division, Center for Biological Informatics, Denver, CO.

    Online Links:

    Other_Citation_Details:
    Created in large part by Environmental Research Institute, Inc. Redlands, CA under contract from USGS/BRD/CBI.
    U.S. Geological Survey, Department of the Interior, 200009, Isle Royale National Park, Accuracy Assessment: USGS-NPS Vegetation Mapping Program Isle Royale National Park, USGS, Biological Resources Division, Center for Biological Informatics, Denver, CO.

    Online Links:

    Other_Citation_Details:
    Created in large part by Environmental Systems Research Institute, Inc., Redlands, CA under contract from USGS/BRD/CBI.


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Physical description - Descriptive plot data were collected for 182 sites whose vegetation represents a full spectrum of alliance types present within Isle Royale National Park and its immediate surroundings. Attributes collected for each site include: a unique plot identification code, park name, quad name, UTM coordinates, UTM projection, plot survey date, surveyor's name, length, width, photo type, elevation, slope aspect, topographic position, landform, surface geology, Cowardin System category, hydrology, surface material description, soil texture, soil drainage, leaf phenology, leaf type, and physiognomy. Species - Descriptive plot data were collected for 182 sites whose vegetation represents a full spectrum of alliance types present within Isle Royale National Park. Species - this database, is the second of two databases containing plot field data, delineates species and stratum information. Individual species described at each of 182 plots is listed, one line per species, with the following information: Plot Identification Code, Numeric Species Code, Species Name, Species Cover Plantcode, and Strata Code, height, cover, and an alpha-numeric strata code.

  2. How accurate are the geographic locations?

    X,Y UTM coordinates representing each of the 71 plots were collected via GPS under selective availability with post processing for differential correction. The differentially correted GPS coordinates have accuracies in the X and Y direction of +/- 2 to 5 meters.

  3. How accurate are the heights or depths?

    Elevations for plots were obtained from the USGS 24,000 quad maps for Isle Royale, and are estimated to be +/- 15 m.

  4. Where are the gaps in the data? What is missing?

    Physical description - Descriptive entries for each of the 182 plots are complete for each of the applicable attributes listed in the database. Species - One species is entered per line, by plot code, with multiple species listed for each plot, one per row. Plot codes and species names are complete for each row, but some species codes, cover and strata information is missing (because it was not present on the original field forms).

  5. How consistent are the relationships among the observations, including topology?

    Physical description - Entries for each of the listed attributes are in the form of consistent groupings of either textual or numerical descriptors. Species - Entries for each of the listed attributes are in the form of consistent groupings of either textual or numerical descriptors, as defined above under "Attribute Accuracy Report".


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints:
Any person using the information presented here should fully understand the data collection and compilation procedures, as described in these metadata, before beginning analyses. The burden for determining fitness for use lies entirely with the user. For purposes of publication or dissemination, citations or credit should be given to the U.S. Geological Survey and the National Park Service.

  1. Who distributes the data set? (Distributor 1 of 1)

    USGS-NPS Vegetation Mapping Program Coordinator
    USGS/BRD, Center for Biological Informatics
    Geospatial Technology Specialist
    USGS Biological Resources
    Denver, CO 80225-0046
    USA

    (303) 202-4220 (voice)
    303-202-4229 (FAX)
    gs-b-npsveg@usgs.gov

  2. What's the catalog number I need to order this data set?

  3. What legal disclaimers am I supposed to read?

    The U.S. Geological Survey and the National Park Service shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics (if available) are not legal documents and are not intended to be used as such.

    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. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. Any related graphics (if available) are intended to aid the data user in acquiring relevant data; it is not approriate to use the related graphics as data.

    The U.S. Geological Survey and the National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from an U.S. Geological Survey and National Park Service servers and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. Mention of trade names or commercial products in this metadata report does not constitute endorsement or recommendation for use by the U. S. Department of the Interior, U. S. Geological Survey and National Park Service.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 22-Feb-2001
Last Reviewed: 07-May-2008

Metadata author:
USGS-NPS Vegetation Mapping Program Coordinator
U.S. Geological Survey, Center for Biological Informatics, MS 302,
Room 8000, Building 810, Denver Federal Center
Denver, Colorado 80225
USA

(303) 202-4220 (voice)
(303) 202-4219 (FAX)
gs-b-npsveg@usgs.gov

Metadata standard:
FGDC-STD-001.1-1999 Content Standard for Digital Geospatial Metadata, 1998 Part 1: Biological Data Profile, 1999 (FGDC-STD-001-1998)

Metadata extensions used:


Generated by mp version 2.7.24 on Wed May 07 07:39:08 2008



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