Birds; riparian; aquatic; occurrence; observations; line transects
Type of resources
Contact for the resource
The dataset contains records of riparian birds (Aves) collected in the lower valley of the River Tua and included in the Ecological Monitoring Program (2011-17) of the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected in the winter of 2012-2017, and in the spring of 2011-2017 during field visits to five (2011-2014) or seven (2015-2017) transects located in the riverbeds of the lower Tua valley, in the area affected by the dam, and in a control area, upstream. All observations were made with binoculars and/or telescopes.