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Conditions experienced by mosquitoes during the Sahelian wet season as compared with the Sahelian dry season. Conditions 1-3 are very similar between the wet and dry seasons. Conditions 4-7 are different between the seasons, but presumably mosquitoes could accommodate them behaviorally by seeking cool, humid shelters, only flying at night, etc. Conditions 8 and 9 are the critical differences between the seasons and are why aestivation is required.
