Laboratory tests of oviposition by the African malaria mosquito, Anopheles gambiae, on dark soil as influenced by presence or absence of vegetation.

Laboratory tests of oviposition by the African malaria mosquito, Anopheles gambiae, on dark soil as influenced by presence or absence of vegetation. Research Abstract Details 

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Laboratory tests of oviposition by the African malaria mosquito, Anopheles gambiae, on dark soil as influenced by presence or absence of vegetation. Abstract Text:

Juan Huang,Edward D Walker,Philip E Otienoburu,Fred Amimo,John Vulule,James R Miller,

BACKGROUND: Physical objects like vegetation can influence oviposition by mosquitoes on soil or water substrates. Anopheles gambiae s. l. is generally thought to utilize puddles over bare soil as its prime larval habitat and to avoid standing water populated with vegetation. In Kisian, Kenya near Kisumu, water often pools in grassy drainage areas both during and after periods of infrequent rains, when typical puddle habitats become scarce because of drying. This raised the question of whether An. gambiae has the behavioural flexibility to switch ovipositional sites when puddles over bare soil are unavailable. METHODS: To test whether presence and height of grasses influenced oviposition, wild-caught gravid An. gambiae s. l. were offered paired choices between wet, bare soil and wet soil populated with mixed grasses or grasses of differing height. No-choice tests were also conducted by giving females either grassy soil or bare soil. RESULTS: In choice tests, females laid four times more eggs on bare, wet soil than soil populated with grasses. However in no-choice tests, egg output was not significantly different whether grasses were present or not. Females laid significantly more eggs on soil populated with short grass than with medium, or tall grass. CONCLUSION: This work shows An. gambiae s. l. has the capacity to oviposit into grassy aquatic habitats when typical puddles over bare soil are unavailable. This knowledge will need to be considered in the design and implementation of programmes aimed at reducing malaria transmission by suppression of An. gambiae s. l. immatures.

Laboratory tests of oviposition by the African malaria mosquito, Anopheles gambiae, on dark soil as influenced by presence or absence of vegetation. Publishing Authors By Initials

J Huang,ED Walker,PE Otienoburu,F Amimo,J Vulule,JR Miller,

For similar complex mixtures: soil research abstracts see: complex mixtures: soil research

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Laboratory tests of oviposition by the African malaria mosquito, Anopheles gambiae, on dark soil as influenced by presence or absence of vegetation. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Malaria journal

VOLUME: 5

Page Numbers: 88

Journal Abbreviation: Malar. J.

ISSN: 1475-2875

DAY: 12

MONTH: 10

YEAR: 2006

Laboratory tests of oviposition by the African malaria mosquito, Anopheles gambiae, on dark soil as influenced by presence or absence of vegetation. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 101139802

Laboratory tests of oviposition by the African malaria mosquito, Anopheles gambiae, on dark soil as influenced by presence or absence of vegetation. Keywords Mesh Terms:

KEYWORDS: Soil

MESH TERMS: physiology

Chemical & Substance for Abstract: Laboratory tests of oviposition by the African malaria mosquito, Anopheles gambiae, on dark soil as influenced by presence or absence of vegetation. Information

Substance Name: Soil

Registry Number: 0

Grant and Affiliation Information for Laboratory tests of oviposition by the African malaria mosquito, Anopheles gambiae, on dark soil as influenced by presence or absence of vegetation.

AFFILIATION: Department of Entomology, Michigan State University, East Lansing, MI 48823, USA. huangju@msu.edu

Country: England

AGENCY: United States NIAID

GRANT: AI50703

ACRONYM: AI

MEDLINETA: Malar J

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