Epidemiology of tree-hole breeding mosquitoes in the tropical rainforest of Imo State, South-East Nigeria

• Autorzy: Anosike J C , Nwoke B.E.B. , Okere A.N. , Oku E.E. , Asor J.E. , Emmy-Egbe I.O. , Adimike D.A.
• Języki publikacji: EN

Abstrakty

EN

The study of tree-hole breeding mosquitoes was carried out in the tropical rainforest of Imo State Nigeria (two rural areas and two forest reserves in some parts of Orlu Senatorial Zone) between May – October 2002. Using standard entomological procedures, two macrohabitats (natural tree-holes and bamboo traps) and two microhabitats (leaf axils of cocoyams/pineapples and leaf axils of plantain/banana) were sampled for various mosquito species. Mosquitoes were recovered from all the various biotypes sampled. Types of mosquitoes species encountered, their relative abundance, as well as genera varied signifi cantly during the study (p<0.05). Four genera of mosquitoes: Aedes, Culex, Anopheles and Toxorhynchites were recovered while 16 species of mosquitoes encountered include: Aedes aegypti, Ae. africanus, Ae. simpsoni, Ae. albopictus, Ae. stokesi, Ae. taylori, Ae. apicoargenteus, Culex quinquefasciatus, Cx. nebulosus, Cx. trigripes, Cx. decens, Anopheles gambiae, An. funiestus, An. coustani and Toxorhynchites viridibasis. Most of the mosquitoes showed oviposition preferences for one or more habitats. The presence of Ae. africanus, Ae. simpsoni and Ae. aegypti indicate that the study areas were at risk of yellow fever epidemic. The presence of Anopheles and Culex species ensured endemicity of malaria and fi lariasis, while the recovery of Ae. albopictus in this region suggests a possible outbreak of dengue fever in future if not properly controlled.

Słowa kluczowe

EN

ecology; South-East Nigeria; yellow fever; mosquito; epidemiology; tree hole; Nigeria; human disease; Imo State; forest reserve; disease vector; rural area; tropical region

• Wydawca: -
• Czasopismo: Annals of Agricultural and Environmental Medicine
• Rocznik: 2007
• Tom: 14
• Numer: 1
• Opis fizyczny: p.31-38,ref.

Twórcy

autor

Anosike J C

• Imo State University, Owerri, P.M.B.2000 Owerri, Nigeria

autor

Nwoke B.E.B.

autor

Okere A.N.

autor

Oku E.E.

autor

Asor J.E.

autor

Emmy-Egbe I.O.

autor

Adimike D.A.

Bibliografia

• 1. Bang YH, Bown DN, Onwubiko AO, Lambrecht FL: Prevalence of potential vectors of yellow fever in the vicinity of Enugu, Nigeria. Cah ORSTOM Ser Entomol Med Parasitol 1979, 17(3), 139-147.
• 2. Bates M: The Natural History of Mosquitoes. Macmillan, New York 1949.
• 3. Bown DN, Bang YH: Ecological studies on Aedes simpsoni (Diptera: Culicidae) in southeastern Nigeria. J Med Entomol 1980, 17(4), 367-374.
• 4. Christophers SR: Aedes aegypti (L.). The Yellow Fever Mosquito. Its Life History, Bionomics and Structure. Cambridge University Press, Cambridge 1960.
• 5. Corbet PS: Entomological studies from a high tower in Mpanga forest, Uganda IV. Mosquito breeding at different levels in and above the forest. Trans Roy Entomol Soc Lond 1961, 113, 273-283.
• 6. Dunn LH: Mosquito breeding in “test” water containers. Bull Entomol Res 1927, 18, 17-22.
• 7. Dunn LH: Tree-holes and mosquito breeding in West Africa. Bull Entomol Res 1927, 18, 139-144.
• 8. Edwards FW: Mosquitoes of the Ethiopian Region, III. Culicine Adults and Pupae. British museum (Natural History), London 1941.
• 9. Ezike VI, Ozumba NA, Nurenkwo CAN, Nasisi Aonyido AE, Nirenkwo EA: Ecology, distribution and epidemiological impact of Aedes albopictus in Nigeria. Niger J Parasitol 2001, 25, 55.
• 10. Garnham PCC, Harper JO, Highton RB: The mosquitos of the Kaimosi Forest, Kenya colony, with special reference to yellow fever. Bull Entomol Res 1946, 36, 473-496.
• 11. Gillet JD: Common African Mosquitoes and their Medical Importance. William Heinemann Medical Books Ltd., London 1972.
• 12. Gilpin ME, McClelland GA: Systems analysis of the yellow fever mosquito Aedes aegypti. Fortschr Zool 1979, 25(2-3), 355-388.
• 13. Hopkins GHE: Mosquitoes of the Ethiopian Region I. Larval Bionomics of Mosquitoes and Taxonomy of Culicine Larvae. 2nd ed. With notes by Mattingly PF. British Museum (Natural History), London 1952.
• 14. Igbinosa IB: Investigations on the breeding site preferences of mosquitoes in Ekpoma, Nigeria. J Appl Ent 1989, 107, 325-330.
• 15 Kerr JA: Studies on the abundance, distribution and feeding habits of some West African mosquitoes. Bull Ent Res 1933, 24, 493-510.
• 16. Lowrie RC: The effect of competition between larvae of Aedes (S.) albopictus Skuse and A. (S.) polynesiensis Marks. J Med Entomol 1973, 10(1), 23-30.
• 17. Mattingly PF: The Biology of Mosquitoes Borne Disease. George Allen and Unwin, London 1969.
• 18. Mbanugo JI, Okpalaononuju CN: Study on the distribution of mosquitoes in Awka metropolis, Anambra state, Nigeria. 27th Annual Conference of the Nigerian Society for Parasitology 2003, 38, 43.
• 19. Moore CG, Fisher BR: Competition in mosquitoes. Density and species ratio effects on growth, mortality, fecundity, and production of growth retardant. Ann Entomol Soc Am 1969, 62(6), 1325-1331.
• 20. Mukwaya LG: Host preference in Aedes sinzpsoni (Theo.) (Diptera, Culicidae) with special reference to the anthropophilic and non-anthropophilic forms in Uganda. Bull Ent Res 1974, 64, 129-139.
• 21. Onyido AE, Ezike VI, Nwankwo ACN, Ozumba NA, Nasiddi A, Abebe EA, Nwankwo EA: Follow-up entomological studies of reported yellow fever case in Kano northern Nigeria. Annual Conference of the Nigerian Society for Parasitology 2002, 25, 56.
• 22. Onyido AE, Ezike VI, Ozumba, NA, Nwankwo, ACN, Nwankwo EA, Nwosu, EO: Surveillance of yellow fever vectors in the Government Reservation Area (GRA) of Enugu metropolis. 27th Annual Conference of the Nigerian Society for Parasitology 2003, 19, 22.
• 23. Okogun GRA, Nwoke BEB, Okere AN, Anosike JC, Esekhegbe AC: Epidemiological implications of preferences of Breeding sites of mosquito species in Midwestern Nigeria. Ann Agric Environ Med 2003, 10, 217-222.
• 24. Okorie TG: The breeding site preferences of mosquitoes in Ibadan, Nigeria. Nig J Ent 1978, 1(3), 71-80.
• 25. Ozumba NA, Ezike VI, Nwakoby BAM, Ozumba UC: Chronology of yellow fever (YF) outbreaks in pre-independent Nigeria 1913-1953. Nsp Confr 2000, 44, 27-30.
• 26. Ozumba NA, Ezike VI, Maxwell KS, Adetunji AA, Zumba UC: Field epidemiologic observations on human activities that promote the breeding of yellow fever mosquitoes in some parts of Nigeria. Niger J Parsitol 2001, 22, 143-148.
• 27. Ozumba NA, Nwosu EO: Some implications of undisposed solid wastes in Enugu urban, south eastern Nigeria; A preliminary epidemiological perspective study. 27th Annual Conference of the Nigerian Society for Parasitology 2003, 43, 48.
• 28. Philip CB: Preliminary report of further tests with yellow fever transmission by mosquitoes other than Aedes aegypti. Am J Trop Med 1929, 9, 267-269.
• 29. Salako LA: In: USAID: Malaria Problems in Africa. 3rd Series of Regional Conferences on the Development and Clinical Evaluation of Potential Malaria Vaccines, 131-140. Ed. Alfred A. Buck 1997.
• 30. Service MW: The ecology of the mosquitoes of the Northern Guinea Savannah of Nigeria. Bull Ent Res 1963, 54, 601-632.
• 31. Service MW: The attraction of mosquitoes by animal baits in the northern Guinea savannah of Nigeria. J Entomol Soc S Afr 1964, 27, 29-36.
• 32. Service MW: Mosquito Biology. Field Sampling Methods. Applied Science Pub. Ltd., London 1976.
• 33. Surtees G: On the distribution and seasonal incidence of culicine mosquitoes in Southern Nigeria. Proc Roy Ent Soc, 110-120. London 1959.
• 34. White GB: The identifi cation of mosquitoes as vectors of malaria and fi lariasis. Symp Br Soc Parasitol 1979, 17, 103-143.