The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 16 records.
1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Cabral J A, Travessos P, Santos R, Múrias T (2019): EDP Foz-Tua: Terrestrial Birds (point counts) Complementary Studies . v1. EDP - Energias de Portugal. Dataset/Occurrence. http://ipt.gbif.pt/ipt/resource?r=edp_tua_birds_ec_points&v=1.0
Researchers should respect the following rights statement:
The publisher and rights holder of this work is EDP - Energias de Portugal. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.
This resource has been registered with GBIF, and assigned the following GBIF UUID: 2944e5fd-fc4b-4e40-8dba-5a737f18cfc3. EDP - Energias de Portugal publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Portugal.
Birds; terrestrial; occurrence; observations; point counts
Who created the resource:
Who can answer questions about the resource:
Who filled in the metadata:
The data were collected within a 5-km buffer around the valley of the River Tua (Northeast Portugal), in Trás-os-Montes e Alto Douro region, up to 50 km from the mouth, in the municipalities of Carrazeda de Ansiães, Alijó, Murça, Vila Flor and Mirandela.
|Bounding Coordinates||South West [41.166, -7.594], North East [41.502, -7.158]|
The taxonomic coverage of this dataset spans 1 phylum, 1 class, 8 orders, 26 families, 39 genera and 45 species.
|Order||Accipitriformes, Bucerotiformes, Caprimulgiformes, Columbiformes, Coraciiformes, Falconiformes, Gruiformes, Passeriformes|
|Family||Accipitridae, Upupidae, Columbidae, Meropidae, Falconidae, Phasianidae, Alaudidae, Certhiidae, Cettidae, Corvidae, Emberizidae, Fringillidae, Hirundinidae, Laniidae, Motacillidae, Muscicapidae, Paridae, Passeridae, Phylloscopidae, Regulidae, Sittidae, Sturnidae, Sylviidae, Troglodytidae, Turdidae|
|Start Date / End Date||2010-04-16 / 2010-05-03|
The dataset contains records of terrestrial birds (Aves) collected along the lower Tua River valley, and included in the Complementary Studies 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 for terrestrial birds within a 5-km buffer around the River Tua lower valley. The occurrence of the target taxa was documented through 267 positive observation events. In total, 45 species were identified. The most recorded species (>20 individuals) were Ptyonoprogne rupestris (35), Turdus merula (24), Serinus serinus and Fringilla coelebs (22).
|Title||EDP Foz-Tua: Terrestrial Birds (point counts) Complementary Studies |
|Identifier||EDP Biodiversity Data|
|Funding||The work was funded by EDP - Energias de Portugal, S.A.|
|Study Area Description||The study was conducted in part of the sub-basins of river Tua, prior to the construction and subsequent flooding of the lower part of this river valley by the Foz Tua Hydroelectric Dam. The sampling was centered in suitable habitats for terrestrial birds found in a 5-km radius buffer around the future reservoir banks, and up to 50 km from the Tua mouth.|
|Design Description||The objective of the study was to characterize the terrestrial avifauna in a buffer of 5 km around the lower Tua River valley before the dam construction, and to gather quality data to support the design and implementation of mitigation and/or compensation measures.|
The personnel involved in the project:
Sampling was designed to cover the main habitat types for terrestrial birds in and around the lower River Tua valley affected by the Foz Tua dam. Each sampling point was visited once in spring (April-May of 2010) and a 10-minute census was performed in each point (limited distance method). Birds were counted and recorded up to a fixed distance (50m) and beyond the distance (up to 100m) separately. Species identification and assessment of age and sex (when possible) were made locally, with the help of appropriate field guides.
|Study Extent||The data were collected within a 5-km buffer around the lower Tua River valley (Northeast Portugal), up to 50 km from the mouth in the municipalities of Carrazeda de Ansiães, Vila Flor, Alijó, Murça and Mirandela.|
|Quality Control||All identifications were performed by qualified technicians|
Method step description:
- To be completed
|Purpose||This dataset is part of a broader initiative whereby the company EDP - Energias de Portugal S.A. will make available biodiversity data collected during impact assessment and biological monitoring studies.|
|Maintenance Description||This resource will be regularly checked for accuracy.|