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The precise estimation of the effects of extrinsic factors on the egg production and egg hatch rates of ixodid ticks

Published online by Cambridge University Press:  06 April 2009

R. W. Sutherst
R. W. Sutherst
Affiliation:
Department of Parasitology, University of Queensland, Brisbane, Australia
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Extract

The aim of the present contribution has been to draw attention to the technique of covariance analysis in the study of factors influencing the oviposition of ixodid ticks.

The example given as an illustration shows the high degree of sensitivity of the technique and its effectiveness in removing the bias due to the sample differences in the mean female weights of different treatment groups. This bias has not been removed in any published work on egg-production studies of ticks, so preventing precise comparisons of different conditions to be made.

My thanks are due to Dr D. E. Moorhouse for helpful advice and to the Australian Meat Research Committee for generous financial support. The cooperation and assistance of Mr W. J. Roulston and his staff of the Division of Entomology, C.S.I.R.O. is gratefully acknowledged.

Type
Research Article
Information
Parasitology , Volume 59 , Issue 2 , May 1969 , pp. 305 - 310
Copyright
Copyright © Cambridge University Press 1969

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References

REFERENCES

Arthur, D. R. (1951). The bionomics of Ixodes hexagonus Leach in Britain. Parasitology 41, 82–90.CrossRefGoogle ScholarPubMed
Arthur, D. R. (1969). Oviposition and the developing immature stages of Hyalomma anatolicum anatolicum Koch 1844, with reference to the blood meal. [An essay in a presentation volume to Dr W. D. Srivastava.] (In the Press.)Google Scholar
Bailey, K. P. (1960). Notes on the rearing of Rhipicephalus appendiculatus and their infection with Theileria parva for experimental transmission. Bull. epizoot. Dis. Afr. 8, 33–43.Google Scholar
Cox, D. R. (1958). Planning of Experiments. New York: John Wiley and Sons Inc.Google Scholar
Gourlay, N. (1953). Covariance analysis and its applications in psychological research. Br. J. statist. Psychol. 6, 25–34.Google Scholar
Greenberg, B. G. (1953). The use of analysis of covariance and balancing in analytical surveys. Am. J. publ. Hlth 43, 692–9.CrossRefGoogle Scholar
Hitchcock, L. F. (1955). Studies on the non-parasitic stages of the cattle tick Boophilus microplus (Canestrini). Aust. J. Zool. 3, 295–311.Google Scholar
Kitaoka, S. & Yajima, A. (1958). Physiological and ecological studies of some ticks. II. Phase change in ovipositing ability with blood sucking quantity. Bull. natn. Inst. Anim. Hlth, Tokyo 34, 149–62.Google Scholar
Kitaoka, A. & Yajima, A. (1961). Comparison of effectiveness between pesticides against Boophilus microplus by topical application and spraying. Natn. Inst. Anim. Hlth Q., Tokyo 1, 41–52.Google Scholar
Luckey, T. D. (1968). Insecticide hormoligosis. J. econ. Ent. 61, 7–12.Google Scholar
Snedecor, G. W. (1956). Statistical Methods (5th edn). Ames, Iowa: Iowa State University Press.Google Scholar
Snow, K. R. & Arthur, D. R. (1966). Oviposition in Hyalomma anatolicum anatolicum (Koch, 1844). (Ixodoidea: Ixodidae). Parasitology 56, 555–8.Google Scholar
Sweatman, G. K. (1967). Physical and biological factors affecting the longevity and oviposition of engorged Rhipicephalus sanguineus female ticks. J. Parasit. 53, 432–45.CrossRefGoogle ScholarPubMed