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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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References

REFERENCES

Allan, W. (1930) Entomological notes on some agricultural pests in Northern Rhodesia. Rev. Appl. Entomol. 19, 192, 644.Google Scholar
Boivin, G. and Stewart, R. K. (1983) Spatial dispersion of phytophagous mirids (Hemiptera: Miridae) on apple trees. J. econ. Entomol. 76, 1242–1247.Google Scholar
Caudell, A. N. (1914) Orthoptera, family Locustidae, subfamily Hetrodinae. Gen. Ins. 168, 1–13.Google Scholar
Iwao, S. (1968) A new regression method for analysing the aggregation pattern of animal populations. Res. Popul. Ecol. 10, 1–20.Google Scholar
Jones, V. P. and Parella, M. P. (1984) Dispersion indices and sequential sampling plans for the red mite (Acari, Tetranychidae). J. econ. Entomol. 77, 75–79.CrossRefGoogle Scholar
Lloyd, M. (1967) Mean crowding. J. Anim. Ecol. 36, 1–30.CrossRefGoogle Scholar
Mbata, K. J. (1985) The anatomy of the armoured ground cricket, Acanthoplus speiseri Brancsik 1895 (Orthoptera: Tettigoniidae, Hetrodinae) Ph.D. Dissertation, Iowa State University, USA.Google Scholar
Peringuey, L. (1928) Descriptions of new and little-known Orthoptera in the collection of the South African Museum. Ann. S. Afr. Mus., 15, 401–452.Google Scholar
Phiri, P. S. M. (1979) Soil map of the University of Zambia Campus. (Unpublished).Google Scholar
Skaife, S. H. (1953) African Insect Life. Longmans Green and Co., London.Google Scholar
Southwood, T. R. E. (1978) Ecological Methods. Chapman & Hall, London.Google Scholar
Steffey, K. L. and Tollefson, J. J. (1982) Spatial dispersion patterns of Northern and Western Corn Rootworm adults in Iowa cornfields. Environ. Entomol. 2, 283–286.CrossRefGoogle Scholar
Taylor, L. R. (1961) Aggregation, variance and mean. Nature (London), 189, 732–735.CrossRefGoogle Scholar
Taylor, L. R. (1984) Assessing and interpreting the spatial distributions of insect populations. Annu. Rev. Entomol. 29, 321–357.CrossRefGoogle Scholar
Walter, W. E. (1959) A quantitative measure of aggregation in insects. J. econ. Entomol. 52, 1180–1184.Google Scholar
Weidner, H. (1941) Die Hetrodinae des Hamburgischen Zoologischen Museums Und Instituts. Zool. Am. 134, 268–295.Google Scholar
Weidner, H. (1955) Die Hetrodinae (Orthoptera, Saltatoria). Mitt. Hamburg. Zool. Mus. Inst. 53, 109–172.Google Scholar
Ng, Yuen-Shaung, Trout, J. R. and Ahmad, S. (1983) Spatial distribution of larval populations of the Japanese beetle (Coleoptera: Scarabaeidae) in turfgrass. J. econ. Entomol. 76, 26–30.Google Scholar