EDP Foz-Tua: Terrestrial Birds (transects) Complementary Studies [2009-10]

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 in the municipalities of Carrazeda de Ansiães, Vila Flor, Alijó and Murça.

Sampling

Sampling was designed to cover the main habitat types for terrestrial birds in and around the lower Tua valley affected by the Foz-Tua dam. Twenty-four transects of variable extension (range: 450-1187 m) were set in 20 2x2 km squares (1-2 transects per square), and visited once in winter (December-January) and spring (March-April) of 2009-10. Each transect was surveyed on foot, at a constant speed, by two observers for at least 30 minutes. All contacts (by sight or ear) with the tarrget species 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, 13 orders, 33 families, 59 genera and 69 species.

1. Animalia
   rank: kingdom
2. Chordata
   rank: phylum
3. Aves
   rank: class
4. Accipitriformes
   rank: order
5. Buceriformes
   rank: order
6. Charadriiformes
   rank: order
7. Columbiformes
   rank: order
8. Coracciformes
   rank: order
9. Cuculiformes
   rank: order
10. Falconiformes
    rank: order
11. Galliformes
    rank: order
12. Passeriformes
    rank: order
13. Passeriformes
    rank: order
14. Pelecaniformes
    rank: order
15. Piciformes
    rank: order
16. Suliformes
    rank: order
17. Accipitridae
    rank: family
18. Acrocephalidae
    rank: family
19. Aeghitalidae
    rank: family
20. Alaudidae
    rank: family
21. Alcedinidae
    rank: family
22. Ardeidae
    rank: family
23. Certhiidae
    rank: family
24. Columbidae
    rank: family
25. Corvidae
    rank: family
26. Cuculidae
    rank: family
27. Emberizidae
    rank: family
28. Estrildidae
    rank: family
29. Falconidae
    rank: family
30. Fringillidae
    rank: family
31. Hirundinidae
    rank: family
32. Laniidae
    rank: family
33. Meropidae
    rank: family
34. Motacillidae
    rank: family
35. Muscicapidae
    rank: family
36. Paridae
    rank: family
37. Passeridae
    rank: family
38. Phalacrocoracidae
    rank: family
39. Phasianidae
    rank: family
40. Phylloscopidae
    rank: family
41. Picidae
    rank: family
42. Regulidae
    rank: family
43. Scolopacidae
    rank: family
44. Scotoceridae
    rank: family
45. Sittidae
    rank: family
46. Sturnidae
    rank: family
47. Sylviidae
    rank: family
48. Troglodytidae
    rank: family
49. Turdidae
    rank: family
50. Upupidae
    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 and Vila Flor.