This technique is why the species has a long breeding season.
Young remain within the family group until next breeding season.
The area maintained is large enough to support the group in poor years or to accommodate new members after a good breeding season.
There is a single breeding season each year, which occurs during the winter.
In continental Europe at least, the species has a short breeding season, of 52-55 days.
Both parents help to rear the young, which remain with them until the next breeding season.
They have an extended breeding season during the summer months.
The frogs are not known to survive a second breeding season.
They reach full size after around six months, but can remain with their family until the next breeding season half a year later.
By the next breeding season, the previous years young often flock together.
