EDP Foz Tua: Bat Roosts - Ecological Monitoring Program (PME) and Program of Mitigation/ Compensatory Measures (PMC): Exploration Phase (2018-2020)
Citation
Cabral J A, Barros P, Faria S, Carvalho D, Duro V, Brás L, Travassos P, Vale-Gonçalves H, Gomes C, Múrias T (2023). EDP Foz Tua: Bat Roosts - Ecological Monitoring Program (PME) and Program of Mitigation/ Compensatory Measures (PMC): Exploration Phase (2018-2020). EDP. Sampling event dataset https://doi.org/10.15468/mbk43d accessed via GBIF.org on 2024-09-01.Description
The dataset contains records of bats (Chiroptera) collected in the lower valley of River Tua. Data were collected in the scope of the long-term Ecological Monitoring Program (PME) and the Monitoring Program of Mitigation/Compensation Measures (PMC) of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected between February 2017 and February 2020 during field visits to 53 known or presumed bat hibernation, reproduction and pre-dispersion (post-reproduction) roosts, most of them between 0-15 km radius buffer around the lower valley of River Tua. Two roosts located at >20 km from the river (deactivated railroad tunnels), added to the sampling sites in the context of the PMC in 2012, were also monitored. The presence of individuals was recorded by direct observation. The records include taxa identified at the species or genus level. In several occasions, it was not possible to distinguish the individual species, so they were grouped in “species complexes” of the same genus. In 2020, following the constraints imposed by the Covid-19 pandemics, the monitoring occurred only in the hibernation period. Due to the vulnerability of the roost locations, the precision of the geographic coordinates was degraded to 0.01, according to the recommendations of Chapman & Grafton (2008). The dataset with the original (ungraded) coordinates may be provided upon request by contacting EDP, who will define the terms and conditions for its use.Purpose
This dataset is part of a broader initiative whereby the company EDP - Energias de Portugal S.A. will made available biodiversity data collected during impact assessment and biological monitoring studies.Sampling Description
Study Extent
The data were collected within a 15-km radius buffer around the lower valley of River Tua (Northeast Portugal), up to 36 km from the mouth, in the municipalities of Alijó, Carrazeda de Ansiães, Vila Flor, Mirandela, Sabrosa and Bragança. There were also two additional sites surveyed at >20 km from the river.Sampling
Sampling was designed to cover all known and potential bat roosts in the study area, including railroad tunnels, caves, mines, wells, bridges and all sorts of buildings. A place was considered to be a roost when the presence of bats was confirmed, either by direct observations or by indirect evidences (e.g., faeces, urine stains, etc.). Each roost was visited once or twice per season, in the hibernation (January-February), reproduction (April-August) and pre-dispersion (September-October) periods, depending on the year (in 2020, due to the Covid-19 pandemics movement restrictions, there was no monitoring campaigns in the reproduction period). All roosts were searched for the presence of bats by two observers, which recorded all individuals seen. The time spent in each roost varied with the number of bats present and the accessibility conditions. Species identification were usually made “in loco”, with the aid of head-torches, binoculars and field guides. Some bats were photographed to allow a “a posteriori” identification of individuals that raised doubts, or to count large groups that could not be accurately counted in a suitable time in the field.Quality Control
All individual identifications were performed by qualified techniciansMethod steps
- To be completed
Taxonomic Coverages
The taxonomic coverage of this dataset spans 1 phylum, 1 class, 1 order, 4 families, 9 genus and 16 species positively identified.
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Chordatarank: phylum
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Mammaliarank: class
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Chiropterarank: order
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Miniopteridaerank: family
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Molossidaerank: family
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Rhinolophidae
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Vespertilionidae
Geographic Coverages
Most data were collected within a 5-km radius buffer around the river Tua valley (Northeast Portugal), up to 36 km from the mouth. There were also several sites located up to 15 km and two at >20 km from the river. The sites were located in the municipalities of Alijó, Carrazeda de Ansiães, Vila Flor, Mirandela, Sabrosa and Bragança.
Bibliographic Citations
- Chapman AD & Grafton O (2008) Guide to Best Practices for Generalising Sensitive Species-Occurrence Data. Copenhagen: GBIF Secretariat. https://doi.org/10.15468/doc-b02j-gt10 -
Contacts
João Alexandre Cabraloriginator
position: Project Coordinator
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de Ecologia Aplicada, Universidade de Trás-os-Montes e Alto Douro
Quinta de Prados
Vila Real
5001-801 Vila Real
PT
email: jcabral@utad.pt
Paulo Barros
originator
position: Fieldwork Coordinator
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de Ecologia Aplicada, Universidade de Trás-os-Montes e Alto Douro
Quinta de Prados
Vila Real
5001-801 Vila Real
PT
Sandra Faria
originator
position: Technician
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de Ecologia Aplicada, Universidade de Trás-os-Montes e Alto Douro
Vilaz Real
PT
Diogo Carvalho
originator
position: Technician
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de Ecologia Aplicada, Universidade de Trás-os-Montes e Alto Douro
Vila Real
PT
Virgínia Duro
originator
position: Technician
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de Ecologia Aplicada, Universidade de Trás-os-Montes e Alto Douro
Vila Real
PT
Luís Brás
originator
position: Technician
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de Ecologia Aplicada, Universidade de Trás-os-Montes e Alto Douro
Vila Real
PT
Paulo Travassos
originator
position: Technician
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de Ecologia Aplicada, Universidade de Trás-os-Montes e Alto Douro
Vila Real
PT
Hélia Vale-Gonçalves
originator
position: Technician
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de Ecologia Aplicada, Universidade de Trás-os-Montes e Alto Douro
Vila Real
PT
Carla Gomes
originator
position: Technician
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de Ecologia Aplicada, Universidade de Trás-os-Montes e Alto Douro
Vila Real
PT
Tiago Múrias
metadata author
position: Researcher
CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto
Campus Agrário de Vairão
Vairão
4485-661 Vairão
PT
email: tdsantos@cibio.up.pt
João Madeira
administrative point of contact
position: Manager
EDP - Energias de Portugal
Av. 24 de Julho, 12, Torre Nascente, Piso 4
Lisbon
1249-300 Lisboa
PT
email: Joao.Madeira@edp.pt