Phenology data set of plants and birds and other taxonomic groups, as well as agrarian activities and abiotic phenomena from Latvia, 1970-2018

A data set of phenological observations of plants, birds, as well as agrarian activities and abiotic phenomena from Latvia, 1970-2018 is presented. The data include limited number of observations of insects, amphibians, mammals, mushrooms, mollusks and fishes as well. The data was collected by voluntary observers (citizen scientists) and published as paper based yearly bulletins. It includes almost 48 000 individual observations of 159 different phenological phases from 103 locations in Latvia. Each entry is comprised of following fields:

1. Station: name of the observation station
2. Year: year of observation
3. Season: season of observation as indicated in the primary publication
4. Species: English name of the species observed or description of phenomena observed in case of abiotic occurrences
5. Species Latin: Latine name of the species observed
6. Taxonomic_group: taxonomic group of the species observed or grouping of non-biological phases (“Abiotic” for meteorological phenomena and “Agrarian” for agrarian activities)
7. Phenophase: description of phenological phase observed
8. BBCH: attributed BBCH code for phenological phase observed, where applicable
9. Date: date of the first observation of the phase
10. DoY: day of the year of the first observation of the phase
11. Implausible: flag indicating of the reported date of phenological phase is highly implausible (TRUE) or realistic (FALSE)
12. Wrong_order: flag indicating if the order of the reported phases at a given station and year is not realistic (TRUE) or realistic (FALSE)