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How reliable are light traps in estimating biting rates of adult Anopheles gambiae s.l. (Diptera: Culicidae) in the presence of treated bed nets?

Published online by Cambridge University Press:  09 March 2007

E.B. Magbity ,
J.D. Lines ,
M.T. Marbiah ,
K. David  and
E. Peterson
E.B. Magbity*
Affiliation:
Medical Research Centre, PO Box 81, Bo, Sierra Leone Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
J.D. Lines
Affiliation:
Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
M.T. Marbiah
Affiliation:
Liberia Institute for Biomedical Research, Monrovia, Liberia
K. David
Affiliation:
Department of Parasitology, Staten Serum Institute, Copenhagen, Denmark
E. Peterson
Affiliation:
Department of Parasitology, Staten Serum Institute, Copenhagen, Denmark
*
*College of Medicine and Allied Health Sciences, Department of Community Health, Fourah Bay College, PMB, Freetown, Sierra Leone Fax: +44 207 580 9075 E-mail: [email protected]
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Abstract

The sampling efficiency of light trap catches relative to human bait catches in estimating biting rates of the mosquito Anopheles gambiae Giles was investigated in two types of community in southern Sierra Leone: (i) where most of the inhabitants slept under treated bed nets; and (ii) where most of the inhabitants slept without bed nets. The number of female A. gambiae mosquitoes caught in these communities by light trap was strongly correlated (r ≥ 0.72) with those from corresponding human biting catches performed either on the same or adjacent nights. It was found that the relative sampling efficiency of light traps varied slightly but significantly with mosquito abundance in villages with treated bed nets, but not in those without them. Nevertheless, the relationship between relative sampling efficiency and mosquito abundance did not differ significantly between the two types of village. Overall, there was insufficient evidence to show that the presence of treated nets altered the relative efficiency of light traps and any bias was only slight, and unlikely to be of any practical importance. Hence, it was concluded that light traps can be used as a surrogate for human bait catches in estimating biting rates of A. gambiae mosquitoes in the two communities.

Type
Review Article
Information
Bulletin of Entomological Research , Volume 92 , Issue 1 , February 2002 , pp. 71 - 76
Copyright
Copyright © Cambridge University Press 2002

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References

Altman, D.G. & Bland, J.M. (1983) Measurement in medicine: the analysis of method comparison studies. Statistician 32, 307–317.CrossRefGoogle Scholar
Bockarie, M.J., Service, M.W., Toure, Y.T., Toure, S., Barnish, G. & Greenwood, B.M. (1993). The ecology and behaviour of forest form of Anopheles gambiae s.s. Parassitologia 35, (supplement) 5–8.Google ScholarPubMed
Burkot, T.R. & Graves, P.M. (1995) The value of vector based estimates of malaria transmission. Annals of Tropical Medicine and Parasitology 89, 125–134.CrossRefGoogle ScholarPubMed
Costantini, C., Sagnon, N.F., Sanogo, E., Merzagora, L. & Colluzi, M. (1998) Relationship to human biting collections and influence of light and bednets in CDC light-trap catches of West African malaria vectors. Bulletin of Entomological Research 88, 503–511.CrossRefGoogle Scholar
Curtis, C.F., Maxwell, C.A., Finch, R.J. & Njunwa, K.J. (1998) A comparison of use of a pyrethroid either for house spraying or for bednet treatment against malaria vectors. Tropical Medicine and International Health 3, 619–631.CrossRefGoogle ScholarPubMed
Davis, J.R., Hall, T., Chec, E.M., Majala, A., Minjas, J. & Shiff, C.J. (1995) Comparison of sampling anopheline mosquitoes by light-trap and human-bait catches indoors at Bagamoyo Tanzania. Medical and Veterinary Entomology 9, 249–255.CrossRefGoogle Scholar
Faye, O., Par, O., Diallo, S., Gaye, O. & Ngir, O. (1992) Comparative efficacy of the use of CDC light traps and humans to sample Anopheles populations. Results obtained in the Bignona zone of Senegal. Bulletin de la Société de Pathologie Exotique et de sa Filiale de l'ouest Africa 85, 185–189.Google Scholar
Garrett-Jones, C. & Magayuka, S.A. (1975) Studies on the natural incidence of Plasmodium and Wuchereria infectious in Anopheles in rural East Africa: 1. Assessment of density by trapping hungry female Anopheles gambiae Giles species A. WHO/MAL/75.851, WHO/VBC/75.541.Google Scholar
Gunasekaran, K., Jambulingam, P., Sadanandane, C., Sahu, S.S. & Das, P.K. (1994) Reliability of light trap sampling of Anopheles fluviatilis, a vector of malaria. Acta Tropica 58, 1–11.CrossRefGoogle ScholarPubMed
Hii, J.L., Smith, T., Mai, A., Ibam, E. & Alpers, M.P. (2000) Comparison between anopheline mosquitoes (Diptera: Culicidae) caught using different methods in a malaria endemic area of Papua New Guinea. Bulletin of Entomological Research 90, 211–219.CrossRefGoogle Scholar
Lindsay, S.W., Adiamah, J.H., Miller, J.E. & Armstrong, J.R.M. (1992) The effect of pyrethroid impregnated bednets on house entry by mosquitoes in The Gambia. Bulletin of Entomological Research 82, 49–55.CrossRefGoogle Scholar
Lines, J.D. (1996) The technical issues. pp. 17–53 in Lengeler, C., Cattani, J. & Saviny, D. (Eds), Net gain. A new method of preventing malaria death. IDRC/WHO.Google Scholar
Lines, J.D., Curtis, C.F., Wilkes, T.J. & Njunwa, K.J. (1991) Monitoring human-biting mosquitoes (Diptera: Culicidae) in Tanzania with light-traps hung beside mosquito nets. Bulletin of Entomological Research 81, 77–84.CrossRefGoogle Scholar
Magbity, E.B., Marbiah, N.T., Maude, G., Curtis, C.F., Bradley, D.J., Greenwood, B.M., Petersen, E. & Lines, J.D. (1997) Effects of community-wide use of lambdacyhalothrin-impregnated bednets on malaria vectors in rural Sierra Leone. Medical and Veterinary Entomology 11, 79–86.CrossRefGoogle ScholarPubMed
Marbiah, N.T., Peterson, E., David, K., Magbity, E.B., Lines, J. & Bradley, D.J. (1998) A controlled trial of lambdacyhalothrin-impregnated bed nets and/or dapsone/pyrimethamine for malaria control in Sierra Leone. American Journal of Tropical Medicine and Hygiene 58, 1–6.CrossRefGoogle ScholarPubMed
Maxwell, C.A., Myamba, J., Njunwa, K.J., Greenwood, B.M. & Curtis, C.F. (1999) Comparison of bednets impregnated with different pyrethroids for their impact on mosquitoes and on re-infection with malaria after clearance of pre-existing infections with chlorproguanil-dapsone. Transactions of the Royal Society of Tropical Medicine and Hygiene 93, 4–11.CrossRefGoogle ScholarPubMed
Mbogo, C.N., Glass, G.E., Forster, D., Kabiru, E.W., Githure, J.I., Ouma, J.H. & Beier, J.C. (1993) Evaluation of light traps for sampling anopheline mosquitoes in Kilifi, Kenya. Journal of the American Mosquito Control Association 9, 260–263.Google ScholarPubMed
Odetoyinbo, J.A. (1969) Preliminary investigation on the use of light-traps for sampling malaria vectors in The Gambia. Bulletin of World Health Organization 40, 547–560.Google ScholarPubMed
Petersen, E., Marbiah, N.T., Magbity, E., Lines, J.D., Maude, G., Hogh, B., Greenwood, B.M. & Bradley, D.J. (1993) Control trial of lambdacyhalothrin impregnated bed nets and maloprim chemosuppression to control malaria in Sierra Leone. Study design and preliminary results. Parassitologia 35, suppl. 81–85.Google ScholarPubMed
Rubio-Palis, J. & Curtis, C.F. (1992) Evaluation of different methods of catching anopheline mosquitoes in western Venezuela. Journal of the American Mosquito Control Association 8, 261–267.Google ScholarPubMed
Service, M. (1993) Mosquito ecology. Field sampling methods. 2nd edn. 988 pp. London and New York, Elsevier.Google Scholar
Smith, T. (1995) Proportionality between light trap catches and biting densities of malaria vectors. Journal of the American Mosquito Control Association 11, 377–378.Google ScholarPubMed
StataCorp (1995) Stata statistical software: Release 5.0, College station, Texas, Stata CorporationGoogle Scholar