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The developmental periods of the Ixodid tick Rhipicephalus appendiculatus Neum. under laboratory conditions

Published online by Cambridge University Press:  10 July 2009

Denis Branagan
Denis Branagan
Affiliation:
East African Veterinary Research Organization, Muguga, P.O. Kabete, Kenya
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Abstract

A study, begun in 1966 at Edinburgh University, and completed during the ensuing 30 months at Muguga, Kenya, of the developmental periods of Rhipicephalus appendiculatus Neum. under controlled temperature and humidity was carried out to provide basic background information for an intensified FAO/EAVRO programme of East Coast fever research. Quantitative data are given on the preoviposition, pre-eclosion and, for larvae and nymphs, premoulting periods at three constant temperatures, 25, 21 and 18°C. The rate of development at all stages was accelerated by raising the temperature and retarded by lowering it. A “pre-immobilization period” which precedes the entry of engorged larvae and nymphs to the true moulting process also appeared to be temperature dependent. Development became very prolonged as temperatures fell below 18°C, being negligible at 15°C and having apparently ceased altogether at 9°C. Continuous exposure for more than two or three days to temperatures of 4°C and below were lethal to all engorged instars. Humidity (controlled at levels between 18 and 87% r.h.) had no influence on the rate of development. It is concluded that within limits of tolerable aridity, developmental periods would be completed within the times dictated by temperature regardless of the level of humidity or changes in the level of humidity. No suggestion of any diapause mechanism was discerned.

Type
Research Paper
Information
Bulletin of Entomological Research , Volume 63 , Issue 1 , August 1973 , pp. 155 - 168
Copyright
Copyright © Cambridge University Press 1973

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References

Arthur, D.R. (1951). The bionomics of Ixodes hexagonus Leach in Britain. –Parasitology 41, 82–90.Google Scholar
Arthur, D.R. (1962). Ticks and disease. –445 pp. Oxford, Pergamon 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
Branagan, D. (1969). The maintenance of Theileria parva infections by means of the Ixodid tick Rhipicephalus appendiculatus. –Trap. Anim. Hlth Prod. 1, 119–130.Google Scholar
Branagan, D. (1970). The development and survival of Rhipicephalus appendiculatus Neumann, 1901 in laboratory and field. –167 pp. Ph.D. thesis, University of Edinburgh.Google Scholar
Buxton, P.A. & Mellanby, K. (1934). The measurement and control of humidity. –Bull. ent. Res. 25, 171–175.CrossRefGoogle Scholar
Cambpell, J. Allan (1946). Hatching of the egg of Ixodes ricinus L. –Nature, Lond. 157, 142.Google Scholar
Hoogstraal, H. (1956). African Ixodoidea. 1. Ticks of the Sudan, with special reference to Equatoria Province and with preliminary reviews of the genera Boophilus, Margaropus, and Hyalomma. –1101 pp. Washington, D.C., United States Department of the Navy, Bureau of Medicine and Surgery. (Research Report no. NM 005 050.29.07.)Google Scholar
Lewis, E.A. (1939). The ticks of East Africa. Part 1. Species, distribution, influence of climate, habits and life histories. –Emp. J. exp. Agric. 7, 261–270.Google Scholar
Mcculloch, B., Kalaye, W.J., Tungaraza, R., Suda, B.Q.J. & Mbasha, E.M.S. (1968). A study of the life history of the tick Rhipicephalus appendiculatus – the main vector of the East Coast fever - with reference to its behaviour under field conditions and with regard to its control in Sukumuland, Tanzania. –Bull, epizoot. Dis. Afr. 16, 477–500.Google ScholarPubMed
Nuttall, G.H.F. (1913). Observations on the biology of Ixodidae. Part I. –Parasitology 6, 68–118.CrossRefGoogle Scholar
Smith, C.N., Cole, M.M. & Gouck, H.K. (1946). Biology and control of the American dog tick. –Tech. Bull U.S. Dep. Agric. no. 905, 74 pp.Google Scholar
Theiler, G. (1943). Notes on the ticks off domestic stock from Portuguese East Africa. –55 pp. Lourenço Marques, Estaç. Anti-Malár.Google Scholar
Wilson, S.G. (1944). Theileriasis in cattle in Northern Province, Nyasaland. –Vet. Rec. 56, 255–258.Google Scholar
Wilson, S.G. (1946). Seasonal occurrence of Ixodidae on cattle in Northern Province, Nyasaland. –Parasitology 37, 118–125.Google Scholar
Wilson, S.G. (1950). A check-list and host-list of Ixodoidea found in Nyasaland, with descriptions and biological notes on some of the Rhipicephalids. –Bull. ent. Res. 41, 415–428.CrossRefGoogle Scholar
Yeoman, G.H. (1966). Field vector studies of epizootic East Coast fever. II. Seasonal studies of R. appendiculatus on bovine and non-bovine hosts in East Coast fever enzootic, epizootic and free areas. –Bull, epizoot. Dis. Afr. 14, 113–140.Google ScholarPubMed