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Temperature, Rainfall and Butterfly Numbers

E. Pollard
Journal of Applied Ecology
Vol. 25, No. 3 (Dec., 1988), pp. 819-828
DOI: 10.2307/2403748
Stable URL: http://www.jstor.org/stable/2403748
Page Count: 10
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Temperature, Rainfall and Butterfly Numbers
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Abstract

(1) Data on changes in numbers of thirty-one species of butterfly in Britain, in 1976-86, were used to investigate associations between relative abundance and weather by standard multiple regression. (2) The most striking association was between increased numbers and warm, dry summers. There was also a frequent association between wet conditions early in the previous year and increased numbers in the current year. Winter temperature and rainfall showed no strong associations with numbers of butterflies.

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