Co-occurrence of agile frog (Rana dalmatina Fitz. in Bonaparte) with common frog (Rana temporaria L.) in breeding sites in Southern Poland

A location (area 10 km super(2)) of the agile frog (Rana dalmatina Fitz. in Bonaparte) in a southwest part of the Sandomierz Valley (southern Poland), was surveyed during 4 breeding seasons (1999-2002). Eighteen breeding sites of brown frogs were inspected for their characteristics, presence and numbers of egg-batches, and time of egg deposition. Breeding sites were typically temporary, small, and shallow waters (area 5-30 m super(2), depth