to the National Atlas home page
About | Contact Us | Partners | Products | Site Map | FAQ | Help 
AgricultureBiologyBoundariesClimateEnvironmentGeologyGovernmentHistoryMappingPeopleTransportationWater
to the Interactive Map MakerMap LayersPrintable MapsWall MapsDynamic MapsArticlesMapping Professionals
Spread of Africanized Honey Bees in the United States

Spread of Africanized Honey Bees in the United States

Metadata also available as - [Outline] - [Parseable text] - [XML] - [DIF]

Frequently-anticipated questions:


What does this data set describe?

Title: Spread of Africanized Honey Bees in the United States
Abstract:
This map layer portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Islands. The data indicate the year in which the AHB was first observed in a county. This map layer was previously distributed as Spread of Africanized Bees in the United States. This is a revised version of the December 2004 map layer.
  1. How should this data set be cited?

    Service, Agricultural Research , 200603, Spread of Africanized Honey Bees in the United States: National Atlas of the United States, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: 170
    East_Bounding_Coordinate: -64
    North_Bounding_Coordinate: 72
    South_Bounding_Coordinate: 17

  3. What does it look like?

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

    Beginning_Date: 1990
    Ending_Date: 2005
    Currentness_Reference: Ground condition

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

  6. How does the data set represent geographic features?

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

      Indirect_Spatial_Reference:
      U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of The United States, and Associated Areas (Federal Information Processing Standard 5-2): Washington, DC, National Institute of Standards and Technology.

      U.S. Department of Commerce, 1990, Counties and Equivalent Entities of The United States, Its Possessions, and Associated Areas (Federal Information Processing Standard 6-4): Washington, DC, National Institute of Standards and Technology.

      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • GT-polygon composed of chains (6138)

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

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000278. Longitudes are given to the nearest 0.000278. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is GRS1980.
      The semi-major axis of the ellipsoid used is 6378137.
      The flattening of the ellipsoid used is 1/298.257222.

  7. How does the data set describe geographic features?

    Africanized honeybee occurrences (described by Afrbeep020.dbf)
    An indication of whether Africanized honey bees have been observed in a county, and the year when they were first observed. (Source: U.S. Geological Survey)

    Shape
    The representation of the entity in the data. (Source: U.S. Geological Survey)

    ValueDefinition
    Polygon2-dimensional element

    Area
    The size of the shape in coverage units. In the distributed file, coverage units represent square decimal degrees. (Source: U.S. Geological Survey)

    Range of values
    Minimum:0.000
    Maximum:73.832

    Perimeter
    The perimeter of the shape in coverage units. In the distributed file, coverage units represent decimal degrees. (Source: U.S. Geological Survey)

    Range of values
    Minimum:0.010
    Maximum:87.571

    Afrbeep020
    Internal feature number. (Source: U.S. Geological Survey)

    Range of values
    Minimum:2
    Maximum:6139

    State
    The two-character abbreviation for the name of the State or State equivalent in which the county is located. (Source: U.S. Geological Survey)

    Formal codeset
    Codeset Name:Codes for the Identification of the States, the District of Columbia and the Outlying Areas of the United States, and Associated Areas; (Federal Information Processing Standard (FIPS) 5-2): Washington, DC, National Institute of Standards and Technology.
    Codeset Source:U.S. Department of Commerce

    County
    The name of the county or county equivalent. (Source: U.S. Geological Survey)

    ValueDefinition
    <blank>Water areas of the United States for which a county designation is not reported.

    Formal codeset
    Codeset Name:Counties and Equivalent Entities of the United States, Its Possessions, and Associated Areas; (Federal Information Processing Standard (FIPS) 6-4): Washington, DC, National Institute of Standards and Technology.
    Codeset Source:U.S. Department of Commerce

    Fips
    The 5-digit FIPS code of the county or county equivalent. Codes ending in 000 indicate water areas for which a county designation is not reported. (Source: U.S. Geological Survey)

    Formal codeset
    Codeset Name:Counties and Equivalent Entities of the United States, Its Possessions, and Associated Areas; (Federal Information Processing Standard (FIPS) 6-4): Washington, DC, National Institute of Standards and Technology.
    Codeset Source:U.S. Department of Commerce

    State_fips
    The 2-digit FIPS code of the State or State equivalent. (Source: U.S. Geological Survey)

    Formal codeset
    Codeset Name:Codes for the Identification of the States, the District of Columbia and the Outlying Areas of the United States, and Associated Areas; (Federal Information Processing Standard (FIPS) 5-2): Washington, DC, National Institute of Standards and Technology.
    Codeset Source:U.S. Department of Commerce

    Year
    The year in which Africanized honey bees were first observed in the county. (Source: U.S. Geological Survey)

    ValueDefinition
    0Africanized honey bees have not been observed in the county.

    Range of values
    Minimum:1990
    Maximum:2005


Who produced the data set?

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

    • Agricultural Research Service

  2. Who also contributed to the data set?

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

    Kim Kaplan
    Agricultural Research Service, U.S. Department of Agriculture
    10300 Baltimore Blvd
    Beltsville, MD 20705

    301-504-1637 (voice)
    kim.kaplan@usds.gov


Why was the data set created?

These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the National Atlas of the United States in the use of these data.


How was the data set created?

  1. From what previous works were the data drawn?

    ARS (source 1 of 4)
    Service, Agricultural Research , Unknown, Spread of Africanized Honey Bees in the United States: U.S. Department of Agriculture, Beltsville, MD.

    Type_of_Source_Media: Electronic mail
    Source_Contribution: Spatial and attribute information.

    Atlas_Cnty (source 2 of 4)
    National Atlas of the United States, 200411, County Boundaries of the United States, 2001: National Atlas of the United States, Reston, VA.

    Online Links:

    Type_of_Source_Media: Online
    Source_Contribution: Spatial information.

    ATLAS-Bees04 (source 3 of 4)
    Service, Agricultural Research , 200412, Spread of Africanized Honey Bees in the United States: National Atlas of the United States, Reston, VA.

    Type_of_Source_Media: Online
    Source_Contribution: Spatial and attribute information.

    ARS06 (source 4 of 4)
    Service, Agricultural Research , 2006, Where are Africanized Honey Bees Now: U.S. Department of Agriculture, Beltsville, MD.

    Type_of_Source_Media: Electronic mail
    Source_Contribution: Spatial and attribute information.

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

    Date: Sep-2004 (process 1 of 2)
    The ARS data were received in a variety of formats, and included information for the United States, Puerto Rico, and the U.S. Virgin Islands. The ARS reports identified the year and the counties in which Africanized honey bees were reported. Working in ArcGIS, Atlas- Cnty, a shapefile of the county boundaries, was modified to include a Year attribute which was then populated with the information from ARS indicating when Africanized bees were first observed in a county. Counties where Africanized honey bees have not been observed were all given a Year value of 0. The result was saved as a new shapefile.

    Data sources used in this process:

    • ARS
    • Atlas-Cnty

    Data sources produced in this process:

    • ATLAS-Bees04

    Date: Feb-2006 (process 2 of 2)
    The ARS06 data were received as a PDF file. Using ARS06 as a reference, ATLAS-Bees04 was edited in ArcView to reflect new observations for 2004 and 2005, as well as corrections for New Mexico. The result was saved as a new shapefile.

    Data sources used in this process:

    • ATLAS-Bees04
    • ARS06

  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?

  2. How accurate are the geographic locations?

  3. How accurate are the heights or depths?

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

    This map layer includes AHB observation statistics for all fifty of the United States, Puerto Rico, and the U.S. Virgin Islands for the years 1990-2005.

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

    No additional checks for topological consistency were performed on this map layer.


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:
None. Acknowledgment of the National Atlas of the United States of America would be appreciated in products derived from these data.

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

    Earth Science Information Center, U.S. Geological Survey
    507 National Center
    Reston, VA 20192

    1-888-ASK-USGS (1-888-275-8747) (voice)

    Contact_Instructions:
    In addition to the address above there are other ESIC offices throughout the country. A full list of these offices is at <http://ask.usgs.gov/esic_index.html>.

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

  3. What legal disclaimers am I supposed to read?

    Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made by the U.S. Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Geological Survey in the use of these data.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 26-Apr-2006
Metadata author:
Peg Rawson
National Atlas of the United States
12201 Sunrise Valley Dr
Reston, VA 20192

703-648-4183 (voice)
atlasmail@usgs.gov

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)



 


Generated by mp version 2.8.16 on Mon May 15 13:26:28 2006