ABSTRACT
Slug activity is associated with conditions of high humidity, and this association has, not unnaturally, led to the hitherto untested assumption that it was in some way induced by the necessarily damp conditions. The experimental examination of this phenomenon, described in this paper, has shown that certain changes in temperature, and not conditions of high humidity, induce activity. Such temperature changes occur in the situations inhabited by slugs on just those occasions when slug activity is observed in the field.
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This method was suggested by Dr D. L. Gunn.
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Dr V. M. Conway kindly supplied me with her original complete records.
Copyright © 1954 The Company of Biologists Ltd.
1954
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