Dragonfly - complete lists

Complete checklist of Finnish Odonata. The list includes all dragonflies and damselflies (Insecta: Odonata) recorded in Finland by 31.12.2022. The records include complete checklists of observer trips. Observers mark down each species or taxon they have observed. The data is presence-absence or, optionally, presence-absence with abundance data. Abundance is recorded either in logarhitmic scale (0 = 0 individuals, 1 = 1-10 individuals, 2=10-100 individuals, 3=100-1000 individuals, 4=1000+ individuals) or as precise user input. Observations must include location, date and time data.

Checklists should be considered to show real absences.

The data includes also the following aggregate taxa. The aggregate taxa represent species groups that are routinely observed in the field but cannot be reasonably identified. The reasons for non-identifiation may include difficulties in telling the species apart in normal field conditions (e.g. Aeshna hawkers) or large numbers of co-occurring similar species (e.g. Coenagrion damsels and bluets).

The aggregates are:
Data quality: The quality of data is, as of 8th June 2023, unknown. Data may include incomplete lists, overtly long or short observation efforts or mislabelled observations. Data curation is necessary before using data for research.