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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
Affiliation:
Department of Zoology, University College of Wales, Penglais, Aberystwyth SY23 3DA

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
Copyright
Copyright © Cambridge University Press 1981

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