Water bodies at Liekwegen quarry have made an impact
Photo: Young Natterjack toads (Photo M. Richter)
Photo: Newly metamorphosized Natterjack toads that are only a few millimetres in size (Photo M. Richter)
While they are only a few millimetres long, they are very numerous - the first young Natterjack toads have left their spawning grounds at the Liekwegen quarry.
As part of the programme's efficiency monitoring efforts, since April, the numerous newly created small ponds are being monitored frequently for calling males, spawn and tadpoles as well as recently metamorphosized Natterjack toads.
First spawns were reported in mid- April; the young toads that were recently observed originate from these. Following the abundant rainfall at the end of May, new spawn was deposited in quite a few of the water bodies and a second batch of tadpoles is currently developing. Chances are good, thus, that these tadpoles will have completed their development before the spawning grounds dry up. All of these circumstances point to good prospects of an above-average reproductive success this year.
Photo: Natterjack toad tadpoles (Photo M. Richter)
Since Natterjack toads always deposit their spawn in temporarily water-bearing ponds, their spawn is always at risk that the water bodies might dry up before the development of the tadpoles has been completed. The higher the number of water bodies at hand, thus, the greater the prospects of success for at least part of their reproduction efforts.