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RHYTHMIC EMERGENCE PATTERNS OF THE MOUNTAIN PINE BEETLE DENDROCTONUS PONDEROSAE (COLEOPTERA: SCOLYTIDAE)

Published online by Cambridge University Press:  31 May 2012

J. A. Watson
Affiliation:
Forest Research Laboratory, Department of Fisheries and Forestry, Calgary, Alberta

Abstract

Logs of lodgepole pine (Pinus conforta Dougl. var. latifolia Engelm.) supporting immature Dendroctonus ponderosae Hopkins were maintained under conditions of non-fluctuating temperature and light. The rate of emergence of the adult beetles exhibited a rhythmic, possibly circadian, emergence pattern. When the temperatures fluctuated the emergence rate was always greatest in higher temperature.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1970

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References

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