Studies on the immature stages of the Simulium neavei Roubaud complex and their associated crabs in the Eastern Usambara Mountains in Tanzania. IV. Observations on the crabs and their attached larvae under exceptionally dry conditions.
When exceptionally low rainfall resulted in the drying out of some 'permanent' streams containing the immature stages of Simulium neavei complex species, the fate of the larvae and their associated crabs was investigated. Both crabs and larvae survived under rocks, stones and boulders where some moisture persisted. Such situations would be out of reach to insecticides applied to running water in the normal way.
D000818:Animals; D003386:Brachyura; D004175:Diptera / Q000196:embryology*; D004463:Ecology; D007814:Larva / Q000254:growth & development; D011891:Rain