Seguimiento de anfibios en espacios protegidos del País Vasco y Navarra. I. Parques Naturales de Izki y Valderejo (Álava)

Between 2010 and 2017, during the breeding season and the period of larval develop- ment, we conducted censuses of amphibian populations in a representative sample of ponds, in the natural parks of Izki and Valderejo (province of Alava, Basque Country). A decline in typically Mediterranean species has been recorded in both parks. Specifically, since the 1990s, Discoglossus galganoi Capula, Nascetti, Lanza, Crespo & Bullini, 1985 and Pelodytes punctatus (Daudin, 1802) have not been found in Valderejo, at least in the wetlands where they were present during that period and were subsequently detected. The status of D. galganoi in Izki is similar. The situation of the remaining species seems to be stable in both parks, whereas the population of Triturus marmoratus (Latreille, 1800) has grown in Valderejo, but decreased in Izki.