EDP Foz-Tua: Dragonflies and Damselflies (Odonata) - Ecological Monitoring Program (2020)
Citation
Cabral J A, Travassos P, Braz L, Carvalho D, Vale-Gonçalves H, Faria S, Gomes L, Múrias T (2023). EDP Foz-Tua: Dragonflies and Damselflies (Odonata) - Ecological Monitoring Program (2020). EDP. Sampling event dataset https://doi.org/10.15468/vjdhbq accessed via GBIF.org on 2024-12-08.Description
The dataset contains records of Dragonflies and Damselflies (Odonata) collected in the lower valley of the River Tua, and included in the Ecological Monitoring Program (2018-2020) of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected in August and September 2020 during field visits to 30 sampling points with favourable habitats on the area of the lower Tua valley directly or indirectly affected by the Foz Tua dam, and in a samll stream of the Douro basin (Ferradosa srteam). The occurrence for the both groups was recorded when individuals were seen or captured heard around the point in a 15-minute census.Sampling Description
Study Extent
The data were collected within a 5-km buffer around the lower Tua River valley (Northeast Portugal), up to 45 km from the mouth in the municipalities of Carrazeda de Ansiães, Vila Flor, Alijó, Murça and Mirandela.Sampling
Sampling was designed to cover the main habitat types for Dragonflies and Damselflies in and around the lower River Tua valley affected by the Foz Tua dam and in the Ferradosa stream (Douro basin). Each sampling point was visited once in summer (August and September). The sampling aimed to detect both adults and larvae/exuvia of the target species. Adults were monitored during their flight period, between 9:30 and 16:30, on days with appropriate weather conditions (temperature above 13ºC, light wind, little cloudiness, no rain or fog), with a hand-held net. Sampling took place for 15 minutes, during which the sighted individuals were recorded within a 5m range, and the surrounding vegetation was carefully prospected. Reproductive behavior (individuals in tandem and oviposition) and territorial behaviors were duly recorded. Specimens were identified in the field using appropriate guides Observations made in a non-systematic manner, particularly during the study area, were also recorded. All individuals were releasad after identification. Larval samples were collected using a hand-held net with a circular section of approximately 30 cm in diameter and 1 square-mm mesh. Also, 15-minute sweeps of the margins in each river/stream were performed in the opposite direction of the current, in order to sample different habitats (rock zones, vegetation). Two replicates were taken at each point, in places with the same characteristics, but not coincident. The samples were screened in the field and the relevant material fixed in situ with 80% alcohol for later identification in the laboratory. The collection of the exuvia was done by prospecting the vegetation around the water line for 15 minutes, in order to verify the presence of this type of structures. These were collected and stored in vials, duly labeled, for later identification in the laboratory, using specialized bibliography.Quality Control
All identifications were performed by qualified techniciansMethod steps
- To be completed
Additional info
This resource will be regularly checked for accuracy.Taxonomic Coverages
The taxonomic coverage of this dataset spans 1 phylum, 1 class, 1 order, 8 families, 15 genera and 18 species.
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Animaliarank: kingdom
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Arthropodarank: phylum
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Insectarank: class
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Odonatarank: order
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Aeshnidaerank: family
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Calopterigidaerank: family
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Coenagrionidaerank: family
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Cordulegastridaerank: family
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Gomphidaerank: family
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Lestidaerank: family
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Libellulidaerank: family
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Platycnemididaerank: family
Geographic Coverages
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.
Bibliographic Citations
- Askew R. R. (1988). The dragonflies of Europe. Essex. England. Harley Books. 291pp. - ISBN: 0946589100.
- Dijkstra KD. B. & Lewington R. (2006). Field guide to the dragonflies of Britain and Europe. British Wildlife Publishing. Dorset. UK. 320pp. - ISBN:9780953139941
- Maravalhas E. & Soares A. (2013). As libélulas de Portugal/The dargonflies of Portugal. Booky Publisher. 331pp. - ISBN: 9789899861404.
Contacts
João Alexandre Cabraloriginator
position: Project Scientific Coordinato
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 Travassos
originator
position: Fieldwork Responsible
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de Ecologia Aplicada, Universidade de Trás-os-Montes e Alto Douro
5001-801 Vila Real
Vila Real
5001-801 Vila Real
PT
Luís Braz
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
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
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
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
Vila Real
PT
Luís 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