During the last days, technicians from Doñana's Biodiversity Monitoring Group (ICTS-RBD) are performing a monitoring program of the European pond turtle (Emys orbicularis) and the Spanish pond turtle (Mauremys leprosa) in Doñana Natural Area. In this occasion, the survey is taking place in the pine forest of Sanlúcar de Barrameda, in Cádiz.
This population structure study is performed every 4 years in 5 different locations along Doñana Natural Area, where the two native pond turtles of the Iberian Peninsula are found: the European pond turtle and the Spanish pond turtle.
In the study, all individuals captured of each species are counted and they are marked with a unique numerical code (see Photo) or identified if they were previously marked. In addition, body size, weight, age and sex of individuals are registered, and any observation about the general health state of the turtles.