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Dispersal of Nymphs of the Grasshopper, Camnula pellucida (Scudd.)1

Published online by Cambridge University Press:  31 May 2012

L. G. Putnam
L. G. Putnam
Affiliation:
Research Station, Canada Department of Agriculture, Saskatoon, Sask.
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Abstract

Nymphs of Camnula pellucida hatching from an egg-bed originally about 800 square yards in extent had occupied, by the time they had reached the immature adult stage, approximately 160 acres. For the first three weeks the main factors affecting direction of advancing fronts appeared to be topographical features. The average rate of most rapid advance during this stage was only about 6 yards daily. Subsequently, dispersal appeared to become more random and general, proceeding at a maximum rate of about 20 yards daily, and rather rapidly over-running or outflanking most topographical features that had at first seemed to channelize movement. Dispersal in the nymphal stage was followed by characteristic reassembly of adults for breeding.

Type
Articles
Information
The Canadian Entomologist , Volume 95 , Issue 1 , January 1963 , pp. 76 - 80
Copyright
Copyright © Entomological Society of Canada 1963

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References

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