BCE butterfly data

Study Extent

Data consists of single observations throughout Europe.

Sampling

Visual identification of a single group of butterflies.

Quality Control

Data was checked against known distributions and flight times of species. Non-European data and datapoints not on land are excluded.

Method steps

1. Butterfly observations by known expert.

Butterfly observations, all identified to species level.

1. Lepidoptera
   common name: Butterflies rank: order

European butterfly observations.