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The effect of temperature on the behaviour of the infective larvae of Trichostrongylus colubriformis

Published online by Cambridge University Press:  06 April 2009

D. A. Wharton
D. A. Wharton
Affiliation:
Department of Zoology, University College of Wales, Penglais, Aberystwyth SY23 3DA
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Summary

The effect of temperature on the behaviour of the infective larvae of Trichostrongylus colubriformis has been investigated. Larvae acclimatized at 3°C or 20°C respond to sudden or gradual increases in temperature by coiling. Increased temperature may indicate a risk of exposure to desiccation and elicits a behavioural response which optimizes survival. Larvae are straight when inactive; coiling is an active response to specific stimuli. Larval activity is initiated by exogenous stimuli. Mechanical disturbance is a major stimulus, the response being affected by changes in temperature. Larvae acclimatized at 3°C or 20°C show a peak of activity at temperatures between 15 and 25°C.

Type
Research Article
Information
Parasitology , Volume 82 , Issue 2 , April 1981 , pp. 269 - 279
Copyright
Copyright © Cambridge University Press 1981

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