[The chemical interaction of the tadpoles of the common toad (Bufo bufo L.) with the tadpoles of other species of anurans inhabiting the same reservoirs].

Chemocommunications of B. bufo tadpoles with those of Rana temporaria, R. lessonae, and R. arvalis was investigated. B. bufo tadpoles were shown to be indifferent to conspecific and R. temporaria tadpoles; they escaped heterospecific chemical signals in case of the selection B. bufo: R. lessonae; and they were attracted by those signals in case of the selection water: R. arvalis. These results indicate that B. bufo tadpoles possess differentiated chemosensory perception of the tadpoles of different species. There is a possibility for chemoreception to take a part in organizing biologically significant behavioral reactions in heterospecific interactions.