The specifics of the terrestrial–aquatic ecotone of the north Dagestan seacoast

Аннотация

Four blocks of terrestrial–aquatic ecotones, namely, aquatic, fluctuation, dynamic, and distant ecotones, have been distinguished and characterized. The blocks are differentiated in space and time and represent a complete formation. This is proved by species saturation at the level of the modern structure and previous area genetic relations.