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CROWDING AND ACTIVITY

Published online by Cambridge University Press:  31 May 2012

A. J. Thomson  and
C. S. Holling
A. J. Thomson
Affiliation:
Institute of Animal Resource Ecology, University of British Columbia, Vancouver
C. S. Holling
Affiliation:
Institute of Animal Resource Ecology, University of British Columbia, Vancouver
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Abstract

When the relative velocity of flies is estimated from the frequency of contact of flies with a given area, the resulting picture of activity is misleading because of time-wasting activities arising from encounters between flies. Prediction of this encounter rate is greatly facilitated by the use of Lloyds (1967) index of crowding, which allows for the effects of the non-random distribution of the flies. Prediction of the number of contacts of flies with an inscribed area within the experimental container, was highly successful when the effects of the non-random locomotion of the flies was included in the model of activity.

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Type
Articles
Information
The Canadian Entomologist , Volume 108 , Issue 12 , December 1976 , pp. 1417 - 1426
Copyright
Copyright © Entomological Society of Canada 1976

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