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Providing evidence to improve practice

Individual study: Sixteen years of monitoring amphibians in new ponds at IJzerenbosch

Published source details

van Buggenum H.J.M. (2004) Sixteen years of monitoring amphibians in new ponds at IJzerenbosch. Natuurhistorisch Maandblad, 93, 181-183


This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Create ponds for amphibians Amphibian Conservation

A replicated before-and-after study in 1987–2003 of 22 created ponds in a grassland and woodland nature reserve in Limberg, the Netherlands (van Buggenum 2004) found that the majority of ponds were colonized by two to five amphibian species. Common frog Rana temporaria showed a peak in the number of colonized ponds after five years. By 2003, a total of 5,200 egg masses were recorded. Smooth newt Triturus vulgaris also colonized rapidly and continued to increase. Common toad Bufo bufo and edible frog Rana klepton esculenta took longer to colonize and maintained small populations. Calling males of the European tree frog ranged from 3–15 over 11 years. From 1987, 22 ponds (20–66 m2) were created for amphibians in the 2 km2 reserve. Ponds were monitored in 1988–2003.