Nature Preserves, Land and Water Reserves, and Natural Heritage Landmarks in Illinois

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Frequently-anticipated questions:


What does this data set describe?

Title:
Nature Preserves, Land and Water Reserves, and Natural Heritage Landmarks in Illinois
Abstract:
This data set depicts the location of lands in Illinois that are enrolled in the following Illinois Nature Preserves Commission (INPC) land protection programs: Nature Preserves, Land and Water Reserves, and Natural Heritage Landmarks. As of 11/21/05, the Illinois Nature Preserves program provides permanent, legal protection to over 44,000 acres of high quality natural areas through dedication of over 330 sites with the INPC. The Illinois Land and Water Reserve program provides a more relaxed form of protection, either for a designated number of years or in perpetuity, for over 120 sites that support significant natural heritage or archaeological resources totaling more than 35,600 acres through registration with the INPC. The Natural Heritage Landmark Program is a voluntary recognition program that introduces a landowner to the concept of natural area protection and allows the state to assist with management of the natural area. There are 203 Natural Heritage Landmarks in Illinois comprising over 6,000 acres. Lands in INPC land protection programs are mapped as polygons using a custom ArcView 3.x mapping application called Biotics 4, which was designed by NatureServe. Boundaries are digitized based on hard copy maps provided by field staff, not from legal descriptions. Thus, the polygons represent the approximate boundaries of these lands.
Supplemental_Information: Data are in ArcView shapefile format.
  1. How should this data set be cited?

    Tara Kieninger (ed.), Illinois Natural Heritage Database Progr, 2006, Nature Preserves, Land and Water Reserves, and Natural Heritage Landmarks in Illinois: Illinois Department of Natural Resources, Springfield, IL USA.

    Online Links:

    Other_Citation_Details:
    This is part of the following larger work.

    .

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -90.2527
    East_Bounding_Coordinate: -89.7489
    North_Bounding_Coordinate: 38.2271
    South_Bounding_Coordinate: 38.1158

  3. What does it look like?

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

    Ending_Date: Present
    Currentness_Reference:
    Data is current as of the date is it exported from the Natural Heritage Database

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

    Geospatial_Data_Presentation_Form: Map

  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. It contains the following vector data types (SDTS terminology):

      • GT-polygon composed of chains (9)

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

      The map projection used is Lambert Conformal Conic.

      Projection parameters:
      Standard_Parallel: 33.000000
      Standard_Parallel: 45.000000
      Longitude_of_Central_Meridian: -89.500000
      Latitude_of_Projection_Origin: 33.000000
      False_Easting: 3000000.003620
      False_Northing: 0.000000
      Standard_Parallel: 33.000000
      Standard_Parallel: 45.000000
      Longitude_of_Central_Meridian: -89.500000
      Latitude_of_Projection_Origin: 33.000000
      False_Easting: 3000000.003620
      False_Northing: 0.000000

      Planar coordinates are encoded using Coordinate pair
      Planar coordinates are specified in Feet

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 20925832.1618739.
      The flattening of the ellipsoid used is 1/294.98.

  7. How does the data set describe geographic features?

    ma_tara.dbf
    Shapefile Attribute Table (Source: None)

    Total_area
    Area of polygon (Source: Software generated)

    Software computed

    Managed_ar
    Name of the Nature Preserve, Land and Water Reserve, or Natural Heritage Landmark

    Character Field

    Inpc_numbe
    Illinois Nature Preserves Commission tracking number

    Character Field


Who produced the data set?

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

  2. Who also contributed to the data set?

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

    Illinois Natural Heritage Database Program, Illinois
    c/o Tara Kieninger
    Database Program Manager
    One Natural Resources Way
    Springfield, IL 62702
    USA

    (217)782-2685 (voice)
    (217)785-2438 (FAX)
    tkieninger@dnrmail.state.il.us

    Hours_of_Service: Monday-Friday, 8am - 4:30pm, Central Time Zone


Why was the data set created?

These data are maintained and utilized by the Illinois Department of Natural Resources in order to provide current biodiversity and conservation information to assist with environmental review, natural resource management, conservation planning, biological and ecological research, land acquisition, and general scientific reference. These data are appropriate for use on local and regional thematic analysis within Illinois.


How was the data set created?

  1. From what previous works were the data drawn?

    (source 1 of 1)
    .

    Online Links:

    Other_Citation_Details:
    This is part of the following larger work.

    .

    Online Links:

    Type_of_Source_Media:
    Source_Scale_Denominator:
    Source_Contribution:

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

    (process 1 of 1)
    A) Data are collected in the field by IDNR biologists and other experts. B) Data are digitized and transcribed in Biotics by INHD data managers using ArcView 3.3 and a custom mapping interface known as Biotics 4 (see Mapping with Biotics below). C) Prior to export, data integrity scripts are run to ensure spatial and narrative information are synchronized. D) Oracle attributes are joined to the element occurrence shapefile. E) Tabular and spatial data is exported using the Biotics Exchanger and Export - Project tools. Mapping with Biotics: The software essentially walks the user through the process of developing EO reps according to the revised EO Methodology. For a compehensive desciption of this methodology, see: htt://whiteoak.natureserve.org/eodraft/index.htm. In addition, Biotics automatically creates and maintains separate themes for different feature types, along with associated attributes. In order to map a new EO using Biotics, the following process is used: 1) Digitize and Evaluate Source Feature(s) a) Digitize the appropriate source feature (point, line, or polygon) based on the size of the observed area (compared with the minimum mapping unit for the scale map being used) and the amount and direction of uncertainty associated with that location. b) Assign attributes to source feature by entering fields in source feature window. c) If the source feature has areal estimatd locational uncertainty, buffer with a graphic using the specified uncertainty distance class as the radius. d) Repeat the preceding three steps for each additional observed area for the Element. e) Evaluate separation distances (obtained from the EO specifications) between source feature(s) and other EO reps and independent source features of the same Element. Indicate which feature(s) are to comprise an EO 2) Develop EO Reps a) Based on the grouping of source features and their associated attributes, Biotics will automatically create EO reps, adding any uncertainty or procedural buffers as appropriate. b) Biotics will automatically assign a unique identifier and calculate spatial attributes, storing them with the appropriate themes. Derivation of EO polygons directly from field observations: Under current methodology and technology, all EOs are represented as polygon features. These features are derived from field observations that are digitized directly into GIS and buffered by locational uncertainty. Locational uncertainty can be measured/ delimited directly from the field, estimated, or negligible (usually <6.25m in all directions as with corrected GPS coordinates). Observations that are below a minimum mapping unit (12.5m) distance in either two dimensions (points) or one dimension (lines) and that contain negligible locational uncertainty are buffered using a procedural buffer (6.25m) to create polygons. Derivation of EO polygons from EO point conversion: Under old methodology and technology, embodied by the Biological and Conservation Database (BCD), EOs were originally mapped as points on paper maps and then later digitized into GIS as point features. These features were assigned a precision value that indicated the accuracy of the locality of the EO. During conversion of these EOs from points to polygons, this precision value is used to determine the buffer distance used to create the EO polygon. Point EOs with a precision value of seconds (3-second radius) are buffered 100 m during polygon conversion. Point EOs with a precision value of minutes (1-minute radius) are buffered 2,000 m during polygon conversion. Derivation of compound EO polygons: Discrete or non-contiguous EO polygons of the same species/element can be aggregated into one compound EO depending upon the distance that separate non-contiguous EOs. This distance, separation distance, is the amount of intervening area that determines whether source features of an element should be grouped as part of the same (complex) element occurrence, or should be considered as discrete element occurrences. When available, separation distances are specific to species/elements. When unavailable, a default separation distance of 1 km is used.

    Person who carried out this activity:

    Hours_of_Service:
    Data sources used in this process:

    Data sources produced in this process:

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


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

  1. How well have the observations been checked?

    Attribute information is based on upon 1) information provided to the Natural Heritage Database Program, 2) values automatically assigned by, and 3) values selected by database program staff. Endangered and threatened species locations are mapped by one staff member and then quality controlled by another staff member. Some attributes are also compared periodically against a master set of attribute values. Attribute accuracy is obtained by comparing manual hard copy and electronic plots of information as submitted to the database to the resulting digital shape. Occasionally, digital data is based on the submission of GPS coordinates. In all cases, the digital shape is expanded, either while digitizing or through the use of a buffer, to account for poor incoming data, vague descriptions, or error associated with GPS to create a shape large enough to ensure that the reported element is contained. An assessment of the accuracy of attributes captured in the field by the observer has not been completed.

  2. How accurate are the geographic locations?

    Unknown

  3. How accurate are the heights or depths?

    Unknown

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

    These data are dependent on the research and observations of many scientists and institutions and reflect our current state of knowledge. Data are acquired from various sources, with varying levels of accuracy, and are continually updated and revised. Many areas have never been surveyed and the absence of data in any particular geographic area does not necessarily mean that species, communities, or other resources of concern are not present. This data set includes information regarding threatened and endangered (T&E) species, significant natural communities, and other natural resources in Illinois both received and entered into Biotics 4 by the Illinois Natural Heritage Database Program at the time of publication. T&E bird data is only included in the database when there is reasonable evidence of breeding, except in the case of wintering bald eagles and a few other roosting occurrences. Natural communities are only included in the database if they meet a minimum set of criteria as defined by the Illinois Natural Areas Inventory (INAI). Criteria include size, quality, and relative rarity of the community in a particular natural division of the state. The database only tracks species listed as threatened or endangered by the Illinois Endangered Species Protection Board. INHD also has a "backlog" of data, essentially hard copy and digital field forms that have not been processed and added to the digital data set. These data should not be regarded as a substitute for on-site surveys required for environmental assessments. If you notice significant data gaps for a certain species or geographic area, please submit data or send us a reference.

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

    All element occurrence records are mapped as accurately as reported. Element occurrence (EO) locations are all mapped in GIS using the Biotics Mapper tool (see process steps for information about mapping in this system). Spatial data is updated and reviewed on an ongoing basis.


How can someone get a copy of the data set?

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

Access_Constraints:
Heritage data is only for the intended use of the individual or organization who requested it. This database and accompanying files may not be distributed in any way without the consent of the Illinois Department of Natural Resources' Illinois Natural Heritage Database (INHD) Program. Use of the data is subject to the terms of a Data License Agreement (DLA) or Memorandum of Understanding (MOU) developed between the Natural Heritage Database Program and the information requestor. Hence, the enclosed data are CONFIDENTIAL AND SHOULD BE TREATED AS SUCH. Data provided will be limited to the minimal geographic scale needed, may only be used for the project specified in the DLA or MOU, and is time limited. The user must comply with any additional criteria specified in the DLA or MOU. If other individuals or agencies are interested in these data, contact INHD's Program Manager directly at (217)782-2685.
Use_Constraints:
These data are strictly "on loan" and should be considered "works in progress". Publication, reproduction, or redistribution of the data set or products derived therefrom to parties not covered in the DLA or MOU is expressly forbidden without the consent of the Illinois Department of Natural Resources' (IDNR) Natural Heritage Database (INHD)Program. In any publication that is approved, licensee agrees to cite the source of the data as such: Illinois Natural Heritage Database Program. 2005. Element Occurrence Data for Endangered Species and Rare Resources in Illinois. Biodiversity Tracking and Conservation System (Biotics). Department of Natural Resources, State of Illinois. Data exported 05/05/2005. The element occurrence data is a product and property of the Illinois Natural Heritage Database Program, Illinois Department of Natural Resources. INHD data are supplemental and care should be taken in interpreting these data. INHD data include spatial, tabular, and narrative components. While element locations are defined by spatial components, the tabular and narrative components define quality and usability of the EO record. To ensure accurate application of the INHD data, tabular and narrative components must be evaluated in conjunction with spatial components. The user may also need to consult with the INHD program for clarification. Failure to do so constitutes misuse of the data. Data users must ensure that all data products present the data in a way that will not compromise any species populations; therefore the data users shall: (1) not display specific locational data for any endangered or threatened species, but shall at most indicate that there is a sensitive species at a specific area, or (2) randomize within a USGS Quadrangle the precise location of an endangered or threatened species, or (3) for an endangered or threatened species occurrence with a precise location, the data users should display the area at a scale at which the user cannot tell where the species is located on the ground. Users should obtain permission from the INHD Program before displaying endangered and threatened species data in such a way that individual species locations can be pinpointed. Upon expiration of the DLA or MOU, the user will deleted the dataset from their active computer system(s) and shall not generate new maps, risk assessments, data analyses, or other products after that date. If all parties agree, the user has the option to extend use of the dataset by extending the term of or renewing the DLA or MOU and receiving an updated version of the dataset from the INHD Program. Receipt of this data does not negate IDNR's Endangered Species Consulation process. These data should not be regarded as substitute for on-site surveys required or environmental assessments. Absence of evidence is NOT evidence of absence. Absence of any data does not mean the other resources of special concern do not occur, but rather INHD has not received and/or entered this information in order to document its presence. The data contained herein are provided on an as-is, as-available basis without warranties of any kind, expressed or implied. INHD and the Illinois Department of Natural Resources expressly disclaim any warranty that the data are error-free or current as of the date supplied. Receipt of data does not negate IDNR's endangered species consultation process, where applicable. User should be aware that the electronic portion of the data is only a representation of the more extensive information available in manual files. IDNR cannot guarantee the accuracy or completeness of the data set, rather than can only summarize the information known to the INHD Program at the time of the agreement or understanding.

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

    Illinois Natural Heritage Database Program, Illinois
    c/o Tara Kieninger
    Database Program Manager
    One Natural Resources Way
    Springfield, Illinois 62702
    USA

    (217)782-2685 (voice)
    (217)785-2438 (FAX)
    tkieninger@dnrmail.state.il.us

    Hours_of_Service: Monday-Friday, 8am - 4:30pm, Central Time Zone
  2. What's the catalog number I need to order this data set?

    Nature Preserves, Land and Water Reserves, and Natural Heritage Landmarks

  3. What legal disclaimers am I supposed to read?

    Users must assume responsibility to determine the appropriate use of the data. This data set is not meant to be a definitive statement of presence or absence of a species or element in a particular area. This data is not a substitute for field surveys or investigations. The data is dynamic and continually changing. It is the responsibility of the user to request regular updates to the information on a regular basis, determined by the type of project in which it is being used. Use of this data does not negate IDNR's endangered species consultation process.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 1911
Metadata author:
Illinois Natural Heritage Database Program, Illinois
c/o Tara Kieninger
Database Program Manager
One Natural Resources Way
Springfield, Illinois 62702
USA

(217)782-2685 (voice)
(217)785-2438 (FAX)
tkieninger@dnrmail.state.il.us

Hours_of_Service: Monday-Friday, 8am - 4:30pm, Central Time Zone
Metadata standard:
FGDC CSDGM (FGDC-STD-001-1998)


Illinois Natural Resources Geospatial Data Clearinghouse

Generated by mp version 2.8.11 on Mon Jan 29 15:19:37 2007