This README.txt file was generated on <20241205> by <Bethany Bradley>


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GENERAL INFORMATION
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1. Title of Dataset: Databases of invasive plant geography in the conterminous United States



2. Author Information

  First/Corresponding Author Contact Information
        Name: Bethany Bradley
           Institution: UMass, Amherst
           Address: 160 Holdsworth Way
           Email: bbradley@eco.umass.edu


  
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DATA & FILE OVERVIEW
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Directory of Files
   A. Filename: Appendix S2 Non native plants US       
      Short description: Database of non native plants found in the U.S. as of 2022 standardized from 14 spatial databases.  Data include location
	information (lat/lon) as well as date recorded and qualitative or quantitative abundance information (if collected).       


        
   B. Filename: Appendix S3 Non native plant commonness stats       
      Short description: Synthesis of how widespread, generalist, and abundant non-native plants are within the U.S. Includes commonness derived from
	widespread (number of equal area hexagons occupied), generalist (number of EPA Level III ecoregions occupied), and abundance (number of records with
	an abundant infestation) metrics along with labeled categories from ancillary invasive species datasets.      


        
   C. Filename: Appendix S4 Ecoregion summaries of non native plants       
      Short description: Summary of all plants that are present and/or abundant within each U.S. Level III EPA ecoregion and associated states.  



   D. Filename: Appendix S5 Ecoregion SAC projections       
      Short description: Projections of estimated numbers of non-native species and abundant non-native species within each Level III EPA U.S. ecoregion 
	based on rarefaction/extrapolation curves.


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DATA DESCRIPTION FOR: Appendix S2 Non native plants US
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1. Number of variables: 22


2. Number of cases/rows: 4,884,963


3. Missing data codes:
        NA       No Data



4. Variable List

   See Appendix S2 Metadata

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DATA DESCRIPTION FOR: Appendix S3 Non native plant commonness stats
-----------------------------------------

1. Number of variables: 13


2. Number of cases/rows: 1874


3. Missing data codes:
        NA       No Data



4. Variable List

   See Appendix S3 Metadata

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DATA DESCRIPTION FOR: Appendix S4 Ecoregion summaries of non native plants
-----------------------------------------

1. Number of variables: 8


2. Number of cases/rows: 19,422


3. Missing data codes:
        NA       No Data



4. Variable List

   See Appendix S4 Metadata

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DATA DESCRIPTION FOR: Appendix S5 Ecoregion SAC projections
-----------------------------------------

1. Number of variables: 15


2. Number of cases/rows: 84


3. Missing data codes:
        NA       No Data



4. Variable List

   See Appendix S5 Metadata


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METHODOLOGICAL INFORMATION
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1. Software-specific information:
N/A

2. Equipment-specific information:
N/A

3. Date of data collection: Data compiled through 20220801.  For data collection dates, see Appendix S2 Non native plants US