Hibernation occurs from late autumn to the beginning of spring. As a rule, hibernation occurs in water, but in some locations, it occurs in rodent burrows and holes in riverbanks and lake shores. Group hibernation is typical, but the groups usually do not exceed several dozen individuals.
Breeding starts from several days to one month after the frogs’ spring appearance. The males form loud choruses. The clutch contains up to 16.000 eggs. The time of metamorphosis depends on weather, peculiarities of habitat and latitude but usually falls into April-November. Sexual maturity is attained in the 1st to 4th year of life.
The photo of the marsh frog was captured in the nature reserve La Petite Camargue Alsacienne.