From 1 - 1 / 1
  • Categories  

    The dataset contains records of terrestrial birds (Aves) collected in the lower valley of the River Tua, and included in the Complementary Studies (2009-2010) of the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected between April and May 2010 during field visits to 16 sampling points with favourable habitats in 20 2x2 km UTM squares on the area of the lower Tua valley directly or indirectly affected by the Foz Tua dam. The occurrence of birds was recorded when individuals were seen or heard around the point in a 10-minute census.