1921
Volume 73, Issue 1
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

The distributions of anopheline larval habitats were aggregated in valley bottoms in Kenya in both the rainy and dry seasons, although the degree of aggregation was higher in the dry season than in the rainy season. Larvae of the complex larvae were found more frequently in habitats in farmlands and pastures. However, larvae were found more frequently in natural swamps and pastures. Canopy cover was the only variable significantly associated with the occurrence of the complex and . The average canopy cover was significantly less in the habitats with the complex and larvae than those without the anopheline larvae. Thus, land cover types and topographic features showed important effects on the distribution of anopheline larval habitats. These results suggest that clearing riparian forests would improve growing conditions of the complex and larvae in Kenyan highlands.

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2005-07-01
2017-09-25
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References

  1. Roberts JM, 1964. The control of epidemic malaria in the highlands of Western Kenya. I. before the campaign. J Trop Med Hyg 67 : 161–168.
  2. Malakooti MA, Biomndo K, Shanks GD, 1998. Reemergence of epidemic malaria in the highlands of western Kenya. Emerg Infect Dis 4 : 671–676.
  3. Lindblade KA, Walker ED, Onapa AW, Katungu J, Wilson ML, 1999. Highland malaria in Uganda: prospective analysis of an epidemic associated with El Nino. Trans R Soc Trop Med Hyg 93 : 480–487.
  4. Shanks GD, Biomndo K, Hay SI, Snow RW, 2000. Changing patterns of clinical malaria since 1965 among a tea estate population located in the Kenyan highlands. Trans R Soc Trop Med Hyg 94 : 253–255.
  5. John CC, Ouma JH, Sumba PO, Hollingdale MR, Kazura JW, King CL, 2002. Lymphocyte proliferation and antibody responses to Plasmodium falciparum liver-stage antigen-1 in a highalnd area of Kenya with seasonal variation in malaria transmission. Am J Trop Med Hyg 66 : 372–378.
  6. John CC, O’Donnell RA, Sumba PO, Moormann AM, de Koning-Ward TF, Kazura JW, Crabb BS, 2004. Evidence that invation-inhibitory antibodies specific for the 19-kDa fragment of merozoite surface protein-1 (MSP-1 19) can play a protective role against blood-stage Plasmodium falciparum infection in individuals in a malaria endemic area of Africa. J Immunol 173 : 666–672.
  7. Lindsay SW, Martens WJ, 1998. Malaria in the African highlands: past, present and future. Bull World Health Organ 76 : 33–45.
  8. Mouchet J, Manguin S, Sircoulon J, Laventure S, Faye O, Onapa AW, Carnevale P, Julvez J, Fontenille D, 1998. Evolution of malaria in Africa for the past 40 years: impact of climatic and human factors. J Am Mosq Control Assoc 14 : 121–130.
  9. Lindblade KA, Walker ED, Onapa AW, Katungu J, Wilson ML, 2000. Land use change alters malaria transmission parameters by modifying temperature in a highland area of Uganda. Trop Med Int Health 5 : 263–274.
  10. Githeko AK, Lindsay SW, Confalonieri UE, Patz JA, 2000. Climate change and vector-borne diseases: a regional analysis. Bull World Health Organ 78 : 1136–1147.
  11. Zhou G, Minakawa N, Githeko AK, Yan G, 2004. Association between climate variability and malaria epidemics in the east African highlands. Proc Natl Acad Sci U S A 101 : 2375–2380.
  12. United Nations, 2003. World Population Prospects: the 2002 Revision. New York: United Nations.
  13. Brooks TM, Pimm SL, Oyugi JO, 1999. Time lag between deforestation and bird extinction in tropical forest fragments. Conservation Biol 13 : 1140–1150.
  14. Whitmore TC, 1997. Tropical forest disturbance, disappearance, and species loss. Laurence WL, Bierregaard Jr RO, eds. Tropical Forest Remnants. Chicago: University of Chicago Press, 2–28.
  15. Walsh JF, Molyneux DH, Birley MH, 1993. Deforestation: effects on vector-borne disease. Parasitology 106 (Suppl): S55–S75.
  16. Patz JA, Graczyk TK, Geller N, Vittor AY, 2000. Effects of environmental change on emerging parasitic diseases. Int J Parasitol 30 : 1395–1405.
  17. Minakawa N, Mutero CM, Githure JI, Beier JC, Yan G, 1999. Spatial distribution and habitat characterization of anopheline mosquito larvae in western Kenya. Am J Trop Med Hyg 61 : 1010–1016.
  18. Minakawa N, Sonye G, Mogi M, Yan G, 2004. Habitat characteristics of Anopheles gambiae s.s. larvae in a Kenyan highland. Med Vet Entomol 18 : 301–305.
  19. Service MW, 1977. Mortalities of the immature stages of species B of the Anopheles gambiae complex in Kenya: comparison between rice fields and temporary pools, identification of predators, and effects of insecticidal spraying. J Med Entomol 13 : 535–545.
  20. Khan B, Ofulla AV, Kariuki DM, Githure JI, Kabiru EW, Martin SK, 1992. Drug sensitivity studies during a highland malaria epidemic in Kenya. Trans R Soc Trop Med Hyg 86 : 371–372.
  21. Hightower AW, Ombok M, Otieno R, Odhiambo R, Oloo AJ, Lal AA, Nahlen BL, Hawley WA, 1998. A geographic information system applied to a malaria field study in western Kenya. Am J Trop Med Hyg 58 : 266–272.
  22. Lemmon PE, 1956. A spherical densiometer for estimating forest overstory density. Forest Sci 2 : 314–320.
  23. USEPA, 1983. Methods for Chemical Analysis of Water and Wastes. Washington, DC: U.S. Environmental Protection Agency.
  24. APHA, 1992. Standard Methods for the Examination of Water and Wastewater. Washington, DC: American Public Health Association.
  25. Gillies MT, Coetzee M, 1987. A Supplement to the Anophelinae of Africa South of the Sahara. Johannesburg: The South African Institute for Medical Research.
  26. Scott JA, Brogdon WG, Collins FH, 1993. Identification of single specimens of the Anopheles gambiae complex by the polymerase chain reaction. Am J Trop Med Hyg 49 : 520–529.
  27. Koekemoer LL, Kamau L, Hunt RH, Coetzee M, 2002. A cocktail polymerase chain reaction assay to identify members of the Anopheles funestus (Diptera: Culicidae) group. Am J Trop Med Hyg 66 : 804–811.
  28. Ripley BD, 1976. The second-order analysis of stationary point processes. J Appl Probabil 13 : 255–266.
  29. Minakawa N, Githure JI, Beier JC, Yan G, 2001. Anopheline mosquito survival strategies during the dry period in western Kenya. J Med Entomol 38 : 388–392.
  30. Minakawa N, Seda P, Yan G, 2002. Influence of host and larval habitat distribution on the abundance of African malaria vectors in western Kenya. Am J Trop Med Hyg 67 : 32–38.
  31. Wiegand T, Moloney KA, 2004. Rings, circles, and null-models for point pattern analysis in ecology. Oikos 104 : 209–229.
  32. Gillies MT, De Meillon B, 1968. The Anophelinae of Africa South of the Sahara. Johannesburg: The South African Institute for Medical Research.
  33. Gimnig JE, Ombok M, Kamau L, Hawley WA, 2001. Characteristics of larval anopheline (Diptera: Culicidae) habitats in western Kenya. J Med Entomol 38 : 282–288.
  34. Zar JH, 1999. Biostatistical Analysis. Englewood Cliffs, NJ: Prentice Hall.
  35. Bentley MD, 1989. Chemical ecology and behavioral aspects of mosquito oviposition. Annu Rev Entomol 34 : 402–421.
  36. Mogi M, 1981. Population dynamics and methodology for bio-control of mosquitoes. Laird M, ed. Biocontrol of Medical and Veterinary Pests. New York: Praeger, 140–172.
  37. Washburn JO, 1995. Regulatory factors affecting larval mosquito populations in container and pool habitats: implications for biological control. J Am Mosq Control Assoc 11 : 279–283.
  38. Sunahara T, Ishizaka K, Mogi M, 2002. Habitat size: a factor determining the opportunity for encounters between mosquito larvae and aquatic predators. J Vector Ecol 27 : 8–20.
  39. Gimnig JE, Ombok M, Otieno S, Kaufman MG, Vulule JM, Walker ED, 2002. Density-dependent development of Anopheles gambiae (Diptera: Culicidae) larvae in artificial habitats. J Med Entomol 39 : 162–172.
  40. Ye-Ebiyo Y, Pollack RJ, Spielman A, 2000. Enhanced development in nature of larval Anopheles arabiensis mosquitoes feeding on maize pollen. Am J Trop Med Hyg 63 : 90–93.
  41. Ye-Ebiyo Y, Pollack RJ, Kiszewski A, Spielman A, 2003. Enhanced development of larval Anopheles arabiensis by proximity to flowering maize (Zea mays) in turbid water and when crowded. Am J Trop Med Hyg 68 : 748–752.
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  • Received : 24 Jul 2004
  • Accepted : 05 Jan 2005

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