@article{276,
  author = {Pollard E.},
  title = {Was it a migration - the exceptional abundance of the large white butterfly Pieris brassicae (L.) in 1992.},
  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 = {1994},
  journal = {Entomologist},
  volume = {113},
  pages = {211-216},
  month = {1994},
  language = {English},
}