ABSTRACT
The circadian locomotor rhythm of the terrestrial slug, Umax maximus, was measured with activity wheels during exposure to both humid and drying conditions.
Slugs kept in wet wheels (100% RH) remained fully hydrated while those in dry wheels (<30% RH) experienced progressive dehydration.
Transfer of slugs from a wet wheel to a dry wheel resulted in an increase in the intensity and duration of their patterned locomotor activity that persisted for 3 days. Once the slugs were returned to wet wheels, their locomotor activity returned to normal.
© 1985 by Company of Biologists
1985
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