Was it a migration - the exceptional abundance of the large white butterfly Pieris brassicae (L.) in 1992.

Author
Pollard E.
Abstract

Pieris brassicae was very abundant in the UK in 1992. The timing of systematic counts, anecdotal reports of exceptional local abundance and frequent counts at a coastal site, cast doubt on the importance of immigration in contributing to the large populations. Emergence within the UK is suggested.

Year of Publication
1994
Journal
Entomologist
Volume
113
Issue
4
Number of Pages
211-216
Date Published
1994
Short Title
Entomologist
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