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Eco-ethological heterogeneity of the members of the Anopheles minimus complex (Diptera: Culicidae) in Southeast Asia and its consequences for vector control

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Show simple item record Van Bortel, W. en_US Trung, H. D. en_US Sochantha, T. en_US Keokenchan, K. en_US Roelants, P. en_US Backeljau, T. en_US Coosemans, M. en_US 2007-12-06T14:34:24Z 2007-12-06T14:34:24Z 2004 en_US
dc.identifier.issn 0022-2585 en_US
dc.identifier.other ITG-P1A en_US
dc.identifier.other ITG-P5B en_US
dc.identifier.other ITG-PLA en_US
dc.identifier.other PARAS en_US
dc.identifier.other U-ENTOM en_US
dc.identifier.other JIF en_US
dc.identifier.other ABSTRACT en_US
dc.description.abstract The presence of cryptic species within Anopheles minimus s.l. Theobald, one of the most widespread malaria vectors in Southeast Asia, was suggested on the basis of behavioral heterogeneities observed within this taxon. Subsequently, two species, A and C, were recognized. However, the existence of these cryptic species did not explain all observed behavioral heterogeneities within this complex. Besides, data on the behavior of vectors are essential to understand the dynamics of disease transmission and thus evaluate the appropriateness of vector control measures. Different collection methods were used to collect Anopheles species from several localities in Southeast Asia to assess the inter- and intraspecific behavioral divergences of An. minimus A and C. Collection results were subjected to a correspondence analysis. The members of the An. minimus complex were identified by use of the octanol dehydrogenase allozyme profiles or the polymerase chain reaction-restriction fragment length polymorphism assay. Large intraspecific behavioral differences were observed among populations of An. minimus A. These populations belong to the same species on the basis of the applied genetic markers. In northern Vietnam, species A tended to be more zoophilic, whereas in the study sites of south central Vietnam, Cambodia, and Laos it showed marked antropophilic behavior when cattle were scarce. In the most northern study site, An. minimus A showed noteworthy endophilic behavior. An. minimus C was primarily zoophilic and based on this behavior, its role in malaria transmission is questionable. However, it was only found in one locality, so that intraspecific behavioral variation could not be assessed. An. minimus A is able to change its host preference in function of local situations in host availability. Hence, its role in malaria transmission can differ from region to region. Similarly, the impact of vector control on this species may differ between localities. In conclusion, intraspecific behavioral differences in Anopheles species can occur and these behavioral heterogeneities, albeit important for disease transmission and control, are not a priori indicative for the presence of cryptic species. en_US
dc.language English en_US
dc.subject Protozoal diseases en_US
dc.subject Malaria en_US
dc.subject Vector control en_US
dc.subject Entomology en_US
dc.subject Anopheles minimus en_US
dc.subject Heterogeneity en_US
dc.subject Behavior en_US
dc.subject Species en_US
dc.subject Asia, Southeast en_US
dc.title Eco-ethological heterogeneity of the members of the Anopheles minimus complex (Diptera: Culicidae) in Southeast Asia and its consequences for vector control en_US
dc.type Article en_US
dc.citation.jtitle Journal of Medical Entomology en_US
dc.citation.volume 41 en_US
dc.citation.pages 366-374 en_US
dc.citation.jabbreviation J Med Entomol en_US

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