EDP Foz-Tua: Nocturnal Birds - Complementary Studies [2010]

The dataset contains records of nocturnal birds (Aves: Strigidae), and particularly the Eagle Owl (Bubo bubo) collected in the lower valley of the River Tua and included in the Complementary Studies (2009-2010) of the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected between March and April 2010 during field visits to 39 sampling points in 20 2x2 km UTM squares on the area of the lower Tua valley directly or indirectly affected by the Foz-Tua dam. The presence of individuals was recorded by acoustic observation.

Default

Identification

Alternate Identifier

1e6ec67a-0813-4e9b-9c4f-9082d7ed1e6b

Publication Date
2019-06-17
Title

EDP Foz-Tua: Nocturnal Birds - Complementary Studies [2010]

Abstract

The dataset contains records of nocturnal birds (Aves: Strigidae), and particularly the Eagle Owl (Bubo bubo) collected in the lower valley of the River Tua and included in the Complementary Studies (2009-2010) of the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected between March and April 2010 during field visits to 39 sampling points in 20 2x2 km UTM squares on the area of the lower Tua valley directly or indirectly affected by the Foz-Tua dam. The presence of individuals was recorded by acoustic observation.

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.

Dataset Language

ENGLISH

 
Dataset Creator
Dataset Creator
Dataset Creator
Metadata Provider
Associated Party
Dataset Contact
  EDP - Energias de Portugal - João Madeira (Manager)

Av. 24 de Julho, 12, Torre Nascente, Piso 4

,

Lisbon

,

1249-300 Lisboa

,

PORTUGAL

Keywords (GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml)

  • Birds; terrestrial; nocturnal; occurrence; acoustic observations;

Geographic Coverage

Geographic Description

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 and Mirandela.

Bounding Box

West Bounding Coordinate

-7.531

East Bounding Coordinate

-7.149

North Bounding Coordinate

41.515

South Bounding Coordinate

41.175

Temporal Coverage

Range of Dates

Begin Date

2010-03-04

End Date

2010-04-22

Taxonomic Coverage

General Taxonomic Coverage

The taxonomic coverage of this dataset spans 1 phylum, 1 class, 1 order, 1 family 5 genera and 5 species.

Taxonomic Classification

Taxonomic Rank Name

Kingdom

Taxonomic Rank Value

Animalia

Taxonomic Classification

Taxonomic Rank Name

Phylum

Taxonomic Rank Value

Chordata

Taxonomic Classification

Taxonomic Rank Name

Class

Taxonomic Rank Value

Aves

Taxonomic Classification

Taxonomic Rank Name

Order

Taxonomic Rank Value

Strigiformes

Taxonomic Classification

Taxonomic Rank Name

Family

Taxonomic Rank Value

Strigidae

License Information

Intellectual Rights

This work is licensed under a

Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License

.

 
 

Additional Metadata

Metadata

GBIF Metadata Block

Date Stamp

2021-11-29T09:06:25Z

Citation

Cabral J A, Travessos P, Santos R, Múrias T (2019). EDP Foz-Tua: Nocturnal Birds - Complementary Studies [2010]. EDP - Energias de Portugal. Sampling event dataset https://doi.org/10.15468/svrlk3 accessed via GBIF.org on 2021-11-29.

 

Project

• Project

Title

EDP Foz Tua Nocturnal Birds - Complementary Studies [2010]

Personnel

Individual Name

Given Name

João Alexandre

Surname

Cabral

Role

AUTHOR

Personnel

Individual Name

Given Name

Paulo

Surname

Travassos

Role

AUTHOR

Personnel

Individual Name

Given Name

Regina

Surname

Santos

Role

AUTHOR

Personnel

Individual Name

Given Name

Tiago

Surname

Múrias

Role

ADMINISTRATIVE_POINT_OF_CONTACT

Abstract

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 March and April 2010, during field visits carried out in 39 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 27 positive observation events. In total, 5 species were identified. The most abundant species was Strix aluco (19 observation events). The target species Bubo bubo was detected in just one point.

Funding

The work was funded by EDP - Energias de Portugal, S.A.

Study Area Description

Descriptor

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

Description

The objective of the study was to characterize the occurrence and distribution of the nocturnal bird community in general, and in particular of the Eagle Owl (Bubo bubo), 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.

 
 

Methods

• Method

Method Step

Description

To be completed

Sampling

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, Alijó, Murça and Mirandela.

Sampling Description

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 in winter/spring (March-April of 2010), for a 10 minutes acoustic census. The methodology consisted in the emission of vocal recordings for one minute to induce audible responses of individuals of Bubo bubo, or other species. The playbacks were preceded by a fixed listening time (2 min), where all contacts with any nocturnal species were recorded. All censuses were carried out in the period of 30 minutes before sunset and one hour after sunset.

qualityControl

Description

All identifications were performed by qualified technicians