Species Diversity, Abundance, and Host Preferences of Mosquitoes (Diptera: Culicidae) in Two Different Ecotypes of Madagascar With Recent RVFV Transmission.
Mosquito diversity and abundance were examined in six Madagascan villages in either arid (Toliary II district) or humid (Mampikony district) ecotypes, each with a history of Rift Valley fever virus transmission. Centers for Disease Control and Prevention light traps without CO2 (LT) placed near ruminant parks and animal-baited net trap (NT) baited with either zebu or sheep/goat were used to sample mosquitoes, on two occasions between March 2011 and October 2011. Culex tritaeniorhynchus (Giles) was the most abundant species, followed by Culex antennatus (Becker) and Anopheles squamosus/cydippis (Theobald/de Meillon). These three species comprised more than half of all mosquitoes collected. The NT captured more mosquitoes in diversity and in abundance than the LT, and also caught more individuals of each species, except for An. squamosus/cydippis. Highest diversity and abundance were observed in the humid and warm district of Mampikony. No host preference was highlighted, except for Cx. tritaeniorhynchus presenting a blood preference for zebu baits. The description of species diversity, abundance, and host preference described herein can inform the development of control measures to reduce the risk of mosquito-borne diseases in Madagascar.
Unité d'Entomologie Médicale, Institut Pasteur de Madagascar, Antananarivo 101, Madagascar. Ecole doctorale Sciences de la vie et de l'environnement, Université d'Antananarivo, Antananarivo Madagascar. Jthiery@pasteur.mg.
Thiery Nirina
TN
Jean Jose Nepomichene
Unité d'Entomologie Médicale, Institut Pasteur de Madagascar, Antananarivo 101, Madagascar.
Nohal
N
Elissa
Centre de coopération Internationale en Recherche Agronomique pour le Développement UMR 15 CMAEE, F-97490 Sainte Clotilde, La Réunion, France Institut National de la Recherche Agronomique (INRA), UMR 1309 CMAEE, F-97490 Sainte Clotilde, La Réunion, France. Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien (CRVOI), plateforme de recherche CYROI, F-97490 Sainte Clotilde, La Réunion, France.
Eric
E
Cardinale
Unité d'Entomologie Médicale, Institut Pasteur de Madagascar, Antananarivo 101, Madagascar.
Sebastien
S
Boyer
D000818:Animals; D044822:Biodiversity; D009033:Culicidae / Q000502:physiology*; D017753:Ecosystem; D005247:Feeding Behavior; D007303:Insect Vectors / Q000502:physiology*; D008270:Madagascar; D011157:Population Dynamics; D012295:Rift Valley Fever / Q000635:transmission; D012296:Rift Valley fever virus / Q000502:physiology
Madagascar; diversity; host preference; mosquito; trap