Breeding of the toad Bufo verrucosissimus: sexual dimorphism and shifting spawning sites

摘要: The Colchic toad (Bufo verrucosissimus) inhabits wet mountain forests of Caucasia and breeds in small unstable slow streams seepage pools. Pair formation usually takes place on land. Amplexing couples search for new breeding sites every year; there is little site fidelity. Active searching facilititated by the size males; species highly dimorphic, males having a mean body length 70-85 mm, females 100-130 mm. If larger, more permanent water appears region, reproductive tactics change wait around pond. These generalizations are supported data collected from 1989-1993. There was an inverse correlation between amplexing pairs.