EDP Foz Tua: Amphibians - Complementary Studies [2009-2010]

Study Extent

The data were collected within a 5-km buffer around the Tua lower valley (Northeast Portugal), up to 50 km from the mouth, and in Ferradosa stream (Douro sub-basin) in the municipalities of Carrazeda de Ansiães, Vila Flor, Alijó, Murça and Mirandela.

Sampling

Sampling was designed to cover the main habitat types for amphibians (tanks, ponds, streams, rivers) in and around the lower Tua valley affected by the Foz-Tua dam (including the reservoir area), in a gradient of distance (reservoir, < 5 km, > 5 km). Each sampling plot was visited once or twice in autumn (October-November) of 2010 and spring (February-March) of 2010. All habitats were searched for individuals (adults or larvae) of amphibians and all individuals detected were recorded. Species identification and assessment of age and sex (when possible) were made “in loco”, with the help of appropriate field guides

Quality Control

All identifications were performed by qualified technicians

Method steps

1. To be completed

The taxonomic coverage of this dataset spans 1 phylum, 1 class, 2 orders, 4 families, 8 genera and 9 species.

1. Chordata
   rank: phylum
2. Amphibia
   rank: class
3. Anura
   rank: order
4. Urodela
   rank: order
5. Alytidae
   rank: family
6. Bufonidae
   rank: family
7. Ranidae
   rank: family
8. Salamandridae
   rank: family

The data were collected within a 5-km buffer around the valley of the River Tua (Northeast Portugal), up to 50 km from the mouth, in the municipalities of Carrazeda de Ansiães, Alijó, Murça, Vila Flor and Mirandela.