TitleBodyTechnical Expertise RequiredCostAdditional Information
Describe formats for date and time

For date, always include four digit year and use numbers for months. For example, the date format yyyy-mm-dd would appear as 2011-03-15 (March 15, 2011).

If Julian day is used, make sure the year field is also supplied. For example, mmm.yyyy would appear as 122.2011, where mmm is the Julian day.

If the date is not completely known (e.g. day not known) separate the columns into parts that do exist (e.g. separate column for year and month). Don't introduce a day because the database date format requires it.

For time, use 24-hour notation (13:30 hrs instead of 1:30 p.m. and 04:30 instead of 4:30 a.m.). Report in both local time and Coordinated Universal Time (UTC). Include local time zone in a separate field. As appropriate, both the begin time and end time should be reported in both local and UTC time. Because UTC and local time may be on different days, we suggest that dates be given for each time reported.

Be consistent in date and time formats within one data set.

Document taxonomic information

Identification of any species represented in the data set should be as complete as possible.

  • Use a standard taxonomy whenever possible
  • Full taxonomic tree to most specific level available
  • Source of taxonomy should accompany taxonomic tree (if available)
  • References used for taxonomic identification should be provided, if appropriate (e.g. technical document, journal article, book, database, person, etc.)

Examples of standardized identification systems:

  • Integrated Taxonomic Information System (http://www.itis.gov/)
  • Species 2000 (http://www.sp2000.org/)
  • USDA Plants (http://plants.usda.gov/index.html)
  • Global Biodiversity Information Facility (http://www.gbif.org/informatics/name-services/using-names-data/)