EDP Foz Tua: Terrestrial Birds, Spring (point counts) - Ecological Monitoring Program [2011-2017]

Study Extent

The data were collected within a 5-km buffer around the Tua lower valley (Northeast Portugal), up to 45 km from the mouth, in the municipalities of Alijó, Carrazeda de Ansiães, Murça, Mirandela and Vila Flor.

Sampling

Sampling was designed to cover the main habitats for terrestrial birds along the lower Tua River valley affected by the Foz-Tua dam, including the future reservoir area. In the first year (2011), a total of 27 point counts distributed along the valley was used. From 2012 onwards, this number was increased to 60 points which were kept until the end of the monitoring period. In 2017, a partial renumeration took place, but the total number did not change. All plots were sampled once per spring and per year in the early morning or late afternoon. Each sampling event had 5 minutes of duration, in which all birds seen or heard in two bands of 50m around the point 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, 16 orders, 44 families, 78 genus and 102 species.

1. Accipitriformes
   rank: order
2. Anseriformes
   rank: order
3. Apodiformes
   rank: order
4. Bucerotiformes
   rank: order
5. Charadriiformes
   rank: order
6. Chardriiformes
   rank: order
7. Columbiformes
   rank: order
8. Coraciiformes
   rank: order
9. Cuculiformes
   rank: order
10. Falconiformes
    rank: order
11. Galliformes
    rank: order
12. Passeriformes
    rank: order
13. Pelecaniformes
    rank: order
14. Piciformes
    rank: order
15. Strigiformes
    rank: order
16. Suliformes
    rank: order
17. Accipitridae
    rank: family
18. Pandionidae
    rank: family
19. Anatidae
    rank: family
20. Apodidae
    rank: family
21. Upupidae
    rank: family
22. Scolopacidae
    rank: family
23. Chardriidae
    rank: family
24. Columbidae
    rank: family
25. Alcedinidae
    rank: family
26. Meropidae
    rank: family
27. Cuculidae
    rank: family
28. Falconidae
    rank: family
29. Phasianidae
    rank: family
30. Acrocephalidae
    rank: family
31. Aegithalidae
    rank: family
32. Alaudidae
    rank: family
33. Certhiidae
    rank: family
34. Cisticolidae
    rank: family
35. Corvidae
    rank: family
36. Emberizidae
37. Estrildidae
    rank: family
38. Fringilidae
    rank: family
39. Fringillidae
    rank: family
40. Hirundinidae
    rank: family
41. Laniidae
    rank: family
42. Motacillidae
    rank: family
43. Muscicapidae
    rank: family
44. Oriolidae
    rank: family
45. Paridae
    rank: family
46. Passeridae
    rank: family
47. Phylloscopidae
    rank: family
48. Picidae
    rank: family
49. Prunellidae
    rank: family
50. Regulidae
    rank: family
51. Scotocercidae
    rank: family
52. Sittidae
    rank: family
53. Sturnidae
    rank: family
54. Sylviidae
    rank: family
55. Troglodytidae
    rank: family
56. Turdidae
    rank: family
57. Ardeidae
    rank: family
58. Picidae
    rank: family
59. Strigidae
    rank: family
60. Phalacrocoracidae
    rank: family

The data were collected within a 5-km buffer around the valley of the River Tua (Northeast Portugal), up to 45 km from the mouth, in the municipalities of Alijó, Carrazeda de Ansiães, Murça, Vila Flor and Mirandela.