Fig. 1From: Adult mosquitoes of the sibling species Anopheles gambiae and Anopheles coluzzii exhibit contrasting patterns of susceptibility to four neonicotinoid insecticides along an urban-to-rural gradient in Yaoundé, CameroonMap of the sampling sites where neonicotinoid susceptibility was monitored in An. gambiae and An. coluzzii adults. The nine sites are located along an urban-to-rural gradient centered on Yaoundé. The city (brown areas) situated in the equatorial zone of Cameroon is surrounded by degraded forests (green areas)Back to article page