The association between the phytoplankton, Rhopalosolen species (Chlorophyta; Chlorophyceae), and Anopheles gambiae sensu lato (Diptera: Culicidae) larval abundance in western Kenya
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概要
- 論文の詳細を見る
Algae are important food resources of the larvae of the African malaria vectors, Anopheles gambiae Giles and Anopheles arabiensis Patton (Anopheles gambiae sensu lato), and other zooplankton, but empirical evidence remains meager about the agal flora in ephemeral water bodies. The animals present in natural aquatic habitats in western Kenya were sampled from July to November 2002 to study abiotic and biotic environmental factors determining A. gambiae sl larval abundance. The five highest concentrations of third and fourth instars and pupae (hereafter referred to as old-stage larvae) were sampled in conjunction with the unicellular epizoic green algae, Rhopalosolen species (Chlorophyta; Chlorophyceae). Canonical correspondence analysis revealed that the presence of Rhopalosolen species was the most important determinant of the animal assemblage. The density of old-stage A. gambiae sl larvae was positively correlated with the presence of Rhopalosolen species, but the density of first and second instars of A. gambiae sl was not. The water bodies with Rhopalosolen sp. yielded larger mosquitoes in spite of the higher density of larvae. We demonstrated that the productivity of water bodies in terms of the larvae of malaria vectors can differ in magnitude depending on the agal flora. We discuss phytoplankton as a regulator of mosquito larval populations. © The Ecological Society of Japan 2005.
- Springer Japanの論文
- 2006-05-01
著者
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TAKAGI MASAHIRO
Department of Biotechnology, Graduate School of Engineering, Osaka University
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Tuno Nobuko
Department Of Vector Ecology And Environment Institute Of Tropical Medicine Nagasaki University
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Tuno Nobuko
Department Of Medical Entomology Institute Of Tropical Medicine Nagasaki University
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Minakawa Noboru
Department Of Vector Ecology And Environment Institute Of Tropical Medicine Nagasaki University
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NAKAYAMA Takeshi
Institute ot Biological Sciences, university of Tsukuba
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Minakawa Noboru
Department Of Medicine Saga University
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GITHEKO Andrew
Kisumu Branch of Kenya Medical Research Institute
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YAN Guiyun
Department of Biological Sciences, State University of New York at Buffalo
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Yan Guiyun
Department Of Biological Sciences State University Of New York At Buffalo
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Nakayama Takeshi
Institute Of Biological Sciences University Of Tsukuba
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Takagi Masahiro
Department Of Biotechnology Faculty Of Engineering Osaka University
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Takagi Masahiro
Department Of Vector Ecology And Environment Institute Of Tropical Medicine Nagasaki University
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