Lefèvre Thierry auteur aut IRD Gouagna Louis-Clément auteur aut IRD Dabiré K.R. auteur aut IRD Elguero Eric auteur aut IRD Fontenille Didier auteur aut IRD Renaud François auteur aut IRD Costantini Carlo auteur aut IRD Thomas F. auteur aut IRD text journalArticle eng text/pdf reformatted digital access To test for the effects of host accessibility oil blood-feeding behavior, we assessed degrees of anthropophily of the malaria mosquito Anopheles gambiae at two stages of the behavioral sequence of host foraging in a rice growing area near Bobo-Dioulasso, Burkina Faso, where humans are not readily accessible because of years of generalized use of (mostly non-impregnated) bed nets. First, patterns of lost selection were assessed by the identification of the blood meal origin of indoor-resting samples. Inherent host preferences were then determined by two odor-baited entry traps, set side by side in a choice arrangement, releasing either human or calf odor. The proportion of feeds taken oil humans was around 40%, whereas 88% of trapped An. gambiae "chose" the human-baited trap, indicating a zoophilic pattern of host selection despite a stronger trap entry response with human odor. This paradox can be interpreted as the evolution of a plastic strategy of feeding behavior in this field population of An. gambiae because of the greater accessibility of readily available, although less-preferred, hosts. specialized 052 81 6 1023-1029 2009 0002-9637 https://www.documentation.ird.fr/hor/fdi:010048471 10.4269/ajtmh.2009.09-0124 0002-9637 [F B010048471] https://www.documentation.ird.fr/hor/fdi:010048471 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers20-08/010048471.pdf IRD - Base Horizon / Pleins textes 2010-02-08 2020-09-17 fdi:010048471 fre