EDP Foz-Tua: Dragonflies and Damselflies (Odonata) - Ecological Monitoring Program (2011-2017)
Citation
Costa H, Salgueiro N, Marques A T, Coelho H, Monteiro B, Brás L, Gonçalves R, Oliveira J, Silva M, Sousa D, Caetano M, Romão F, Santos J, Peixoto M, Múrias T (2020). EDP Foz-Tua: Dragonflies and Damselflies (Odonata) - Ecological Monitoring Program (2011-2017). Version 1.1. EDP. Sampling event dataset https://doi.org/10.15468/ywwyjd accessed via GBIF.org on 2024-12-10.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 (2011-2017) of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected between June 2011 and August 2017 during field visits to 33 sampling points with favorable habitats on the area of the lower Tua valley directly or indirectly affected by the Foz Tua dam, and in a small stream of the Douro basin. The occurrence for the both groups was recorded when individuals were seen or captured heard around the point in a 15-minute census.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.
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 twice per year in spring (April-June) and summer (July-August). 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 sorrounding vegetation was carefully prospected. Reproductive behavior (individuals in tandem and ovoposition) 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 prospection of 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
Taxonomic Coverages
The taxonomic coverage of this dataset spans 1 phylum, 1 class, 1 order, 10 families, 23 genera and 40 species.
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Arthropodarank: phylum
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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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Corduliidaerank: family
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Gomphidaerank: family
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Lestidaerank: family
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Libellulidaerank: family
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Macromiidaerank: 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
- Dijkstra, K. 2006. Field Guide to the Dragonflies of Britain and Europe. British Wildlife Publication, Dorset. 320 pp. - ISBN: 9780953139941
- Maravalhas, E, Soares, A 2013. A. As Libélulas de Portugal. Booky Publisher. - ISBN: 9899861405
- Askew, R. R. 1988. The Dragonflies of Europe. Harley Books, Essex. - ISBN: 0946589100
Contacts
Hugo Costaoriginator
position: General Coordinator 1
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
email: info@bioinsight.pt
Nuno Salgueiro
originator
position: General Coordinator 2
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
email: info@bioinsight.pt
Ana Teresa Marques
originator
position: Fieldwork Coordinator 1
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
Helena Coelho
originator
position: Fieldwork Coordinator 2
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
email: info@bioinsight.pt
Bárbara Monteiro
originator
position: Technician
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
Luís Brás
originator
position: Technician
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
Rui Gonçalves
originator
position: Technician
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
José Oliveira
originator
position: Technician
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
Margarida Silva
originator
position: Technician
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
Dárcio Sousa
originator
position: Technician
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
Marco Caetano
originator
position: Technician
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
Fernando Romão
originator
position: Technician
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
Joana Santos
originator
position: Technician
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
PT
Miguel Peixoto
originator
position: Technician
BioInsight
Rua Antero de Quental, Nº52 Loja B
Odivelas
2675-690 Odivelas
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