Pool Frog is a widespread species in Northern, Central and Eastern Europe and ranges as far eastwards as Volga River, Russia. It is absent from much of Scandinavia (there are only two isolated populations, one near Oslo, Norway, and another north of Stockholm, Sweden), Spain (with exception of some introduced populations) and most of Italy.
The numbers are decreasing. Most of European populations are in decline, but species is still widespread and common in Poland, the Baltic countries (including Latvia), Moldova, Ukraine and Russia. Habitat loss is the main threatening factor.
The species was extinct in Great Britain, but recently has been reintroduced.
■ Listed in Appendix III of the Bern Convention on the Conservation of European Wildlife and Natural Habitats as a protected fauna species.
■ Listed in Annex IV of EU Council Directive 92/43/EEC on the Conservation of natural habitats of wild fauna and flora (the Habitats Directive).
■ Phylum Chordata – chordates
■ Class Amphibia – amphibians
■ Order Anura – frogs
■ Family Ranidae – true frogs
■ Species Pelophylax lessonae – Pool Frog