EDP Foz Tua Nocturnal Birds - Ecological Monitoring Program [2011-2017]

Data Records

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 249 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.

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Costa H, Santos J, Marques A T, Coelho H, Zina H, Ribeiro E, Pedroso R, Cardoso H, Queirós L, Paula J, Cabral J A, Travassos P, Santos R, Carvalho D, Gomes C. Múrias T (2019): EDP Foz Tua Nocturnal Birds - Ecological Monitoring Program [2011-2017]. v1. EDP - Energias de Portugal. Dataset/Samplingevent. http://ipt.gbif.pt/ipt/resource?r=edp_tua_nocturnal_birds_pme&v=1.0

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is EDP. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 211266f9-30e9-4260-acdb-f8e2e2c37974.  EDP publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Portugal.

Keywords

Birds; terrestrial; nocturnal occurrence; acoustic observations

Contacts

Geographic Coverage

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, Vila Flor, Murça and Mirandela.

Taxonomic Coverage

The taxonomic coverage of this dataset spans 1 phylum, 1 class, 1 order, 1 family 6 genera and 6 species

Temporal Coverage

Project Data

The dataset contains records of nocturnal birds (Aves: Strigidae), particularly the Eagle Owl (Bubo bubo) 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 January 2011 and June 2017, during field visits carried out in 22 sampling points for nocturnal bird playbacks (acoustic census) within a 5-km buffer around the lower Tua River valley. The occurrence of the target taxa was documented through 66 positive observation events. In total, 6 species were identified. The most abundant species was Strix aluco (33 observation events). The target species Bubo bubo was detected in nine occasions.

The personnel involved in the project:

Sampling Methods

Sampling was designed to cover the main habitat types for nocturnal birds in and around the lower Tua River valley affected by the Foz-Tua dam. Each sampling point was visited once (2011) or three times (2011-2017) per year in winter (January/February) and spring (April/June), for acoustic censuses. The methodology consisted in spontaneous listening (withouth any playback) for 10 minutes, during which all "natural" contacts with nocturnal birds were recorded, followed by the emission of vocal recordings for one minute to induce audible responses of individuals of Bubo bubo, or other species. The playbacks were followed by a fixed listening time (2 min), where all contacts with any nocturnal species were recorded. This procedure was repeated three times in each sampling point. All censuses begun 15 minutes after sunset and proceed up to two hours (maximum) after the first listening.

Method step description:

1. To be completed

Additional Metadata