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Spatial dispersion patterns of the armoured ground cricket, Acanthoplus speiseri Brancsik at the university of zambia campus (Orthoptera: Tettigoniidae, Hetrodinae)

Published online by Cambridge University Press:  19 September 2011

Keith J. Mbata
Keith J. Mbata
Affiliation:
Department of Biological Sciences, P. O. Box 32379, Lusaka, Zambia
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Abstract

Spatial dispersion patterns of Acanthoplus speiseri were inestigated. Four indices of dispersion derived from either Iwao's measure or Taylor's Power Law were used to study spatial dispersion patterns. All indices were in agreement in identifying aggregated dispersion patterns in the cricket populations sampled. Iwao's index of basic contagion revealed that individual crickets formed the basic components in the aggregated dispersion of the populations.

Résumé

Les formes de dispersion spatiale d'Acanthoplus speiseri Brancsik étaient étudiées. Quatre indices de dispersion obtenues ou bien avec la méthode d'Iwao ou avec la loi de puissance de Taylor, étaient employées pour analyser la dispersion spatiale. Toutes les indices étaient en accord dans l'identification d'un mode de dispersion en aggregation des populations des cigales studiées. L'indice de contact fondamental d'lwao a révélé que les individus formaient les composées fondamentales dans la dispersion en aggregation de la population des cigales.

Keywords

Acanthoplus StålAcanthoplus speiseri Brancsikarmoured ground cricketHetrodinaeOrthopteraspatial dispersion patternsTettigoniidae
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 12 , Issue 4 , August 1991 , pp. 409 - 417
Copyright
Copyright © ICIPE 1991

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