Modification of Anopheles gambiae distribution at high altitudes in Madagascar
| Autor: | Etienne Tata, Michaël Luciano Tantely, Jean-Claude Rakotoniaina, Didier Fontenille, Lala Andrianaivolambo, Nohal Elissa |
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| Přispěvatelé: | Institut Pasteur de Madagascar, Réseau International des Instituts Pasteur (RIIP), Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Département d'Entomologie, Facultés des Sciences, Université d'Antananarivo, This study was conducted as part of the research project (RIFT-OI) on emerging infectious diseases transmitted by arthropod vectors in the geographical area of the Indian Ocean, financed by the Institut Pasteur de Madagascar (IPM) and the Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien (CRVOI). |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
0106 biological sciences
Biotope Anopheles gambiae [SDV]Life Sciences [q-bio] 030231 tropical medicine Distribution (economics) Rainforest MESH: Insect Vectors 01 natural sciences MESH: Anopheles MESH: Madagascar 03 medical and health sciences malaria vector 0302 clinical medicine Sensu Anopheles parasitic diseases distribution Madagascar Animals MESH: Animals Malaria vector Central Highlands Ecology Evolution Behavior and Systematics Ecology biology business.industry An gambiae Altitude 15. Life on land biology.organism_classification MESH: Altitude Insect Vectors 010602 entomology population characteristics business geographic locations |
| Zdroj: | Journal of Vector Ecology Journal of Vector Ecology, Wiley-Blackwell: No OnlineOpen, 2012, 37 (2), pp.402-6. ⟨10.1111/j.1948-7134.2012.00244.x⟩ |
| ISSN: | 1081-1710 |
| Popis: | International audience; In Madagascar, Anopheles gambiae has been found below altitudes of 1,000 m. We sampled An. gambiae sensu lato (sl) between 2008 and 2010 in the Central Highlands of Madagascar at altitudes over 1,200 m. The study site consists of rainforest, rainforest edge, and an open savanna biotope. Anopheles gambiae and An. arabiensis, as well as molecular forms of An. gambiae, were identified molecularly. An. gambiae accounted for 26.7% at the edge of the rainforest and 2.3% in the open savanna biotope. One specimen of this species was caught in the forest. An. arabiensis accounted for 66.3% at the edge of the rainforest and 97.7 % in the open savanna biotope. All An. gambiae adults tested belonged to the S molecular form. An. gambiae is present at high altitudes in Madagascar, with a high prevalence at the rainforest edge. Several factors, including the appearance of new favorable biotopes, recolonization after a reduction of indoor vector control, and climate change, may contribute to its distribution. The changing distribution of An. gambiae may have consequences for the distribution and incidence of malaria in the Malagasy Highlands. |
| Databáze: | OpenAIRE |
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