Amphibians in Western Asturia

In the spring of 1980, from the end of March till in July, I visited the eastern part of the Spanish province of Oviedo and the adjacent part of the province of Leon. The main subject of investigation during this period was the species Rana temporaria (Veenstra 1981). I tried to find out where this species could be found and while doing so I determined the occurrence of more species of amphibians. Totally twelve species of amphibians could be observed. Characteristics of their reproduction sites are listed and worked out below.