EDP Baixo Sabor: Herpetofauna (Amphibians) - Compensatory Measures Program (MC2 and MC10): Exploration Phase (2015-2020).
Citation
Cabral J A, Travassos P, Vale-Gonçalves H, Duro V, Braz L, Barros P, Carvalho D, Múrias T (2022). EDP Baixo Sabor: Herpetofauna (Amphibians) - Compensatory Measures Program (MC2 and MC10): Exploration Phase (2015-2020).. EDP. Sampling event dataset https://doi.org/10.15468/94u5zn accessed via GBIF.org on 2024-09-01.Description
The dataset contains records of Herpetofauna (Amphibia and occasional Reptilia) collected in the lower valley of the River Sabor (NE Portugal), in the scope of the compensatory measure MC10 (sub-measures MC10.1, MC10.2, MC10.4 and MC10.5) and MC2 (sub-measure MC2.4) included in the long-term Compensatory Measures Monitoring Program (PMC) of the Baixo Sabor Hydroelectric Dams (AHBS), promoted by EDP – Energias de Portugal, S.A. This dataset includes results of surveys carried out in and around the area affected by the dam, from March 2015 to October 2020. Although the target group were the Amphibian, several observations of reptiles recorded in the framework of MC10.4 were also included. Sampling was performed by visual surveys in line transects (MC10.1), stationary points (MC10.2), and intensive search/dip netting (MC10.4, MC10.5 and MC2.4) along the lower Sabor river valley (including some tributaries) and in the rivers Maçãs and Angueira, up to 42 km upstream. The identification of the species was made "in situ". The dataset consists of 12833 individual observations (adults and larvae) of Amphibia and Reptilia, of which 12774 were identified to the species level, 25 to the genus and 34 to supra-specific levels (class to family).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 in 84 sampling points (68 for MC10, 9 for MC2, and 7 in common ) in the lower Sabor river valley and its tributaries, up to 42 km from the mouth, in the municipalities of Torre de Moncorvo, Alfândega da Fé, Mogadouro, Macedo de Cavaleiros, Vimioso and Brag ança.Sampling
For MC10.1 (road signaling) five intervention road segments and five control segments were covered once a month in March, May and October on three consecutive nights, starting early in the nightfall, when species are more active and move between patches and habitats. Sampling was always carried out in climatically favorable conditions to amphibian activity, namely by choosing nights with precipitation or relative high humidity. All individuals, dead or alive seen in the selected segments of road (both in intervened and control roads) were identified to the lowest taxonomic level as possible. The evaluation of the use of hydraulic passages by amphibians (MC10.2) was carried out in 22 hydraulic passages (PH): eleven intervened and eleven controls. Each PH, its immediate surroundings (50 m to each side of the PH), and both sides of the respective road section, were intensively prospected for 30 minutes for the presence of amphibians. All spotted individuals were recorded, discriminating between those that used the passage (i.e., observed inside, entering or leaving) and those that used the road above, but not considering the ones that were not associated to either structure. Sampling was always carried out in periods climatically favorable to amphibians, namely nights with precipitation or high relative humidity. The PH were checked once a month, in March, May and October, on three consecutive nights. The habitat restoration measure (MC10.4) included a component aimed to improve the habitat conditions for the amphibian populations by the restoration of riparian galleries. A total of 20 sampling points (10 intervened and 10 controls) was established to assess the effectiveness of this measure. In each point, an area of 100m x 2m along the water banks was systematically surveyed for a period of 30 minutes by two observers before the dip netting procedures. All individuals seen (adults or larvae) were recorded. Samplings were carried out in late spring (May/June) and autumn (September/October). The implementation of dedicated built ponds for amphibian conservation (MC10.5) also had the purpose to provide supplementary food resources to the Black Stork (Ciconia nigra) (MC2.4). A total of 28 ponds were used, of which 14 were newly built “impact” ponds and eight were controls (six common to the two MC). Sampling consisted of a systematic survey of amphibians around the perimeter of the pond to count specimens present on the margins, as well as for laying identification, complemented by dip netting (one netting per every 2m of pond perimeter) for larvae and adults (anura and urudels) sampling. Each pond was visited once late winter (March) and through spring (May-July).Quality Control
All individual identifications were performed by qualified technicians.Method steps
- To be completed
Taxonomic Coverages
The taxonomic coverage of this dataset spans 2 classes, 4 orders, 9 families, 14 genera and 21 species.
-
Chordatarank: phylum
-
Amphibiarank: class
-
Reptiliarank: class
-
Anurarank: order
-
Caudatarank: order
-
Squamatarank: order
-
Testudinesrank: order
-
Alytidaerank: family
-
Bufonidaerank: family
-
Hylidaerank: family
-
Pelobatidaerank: family
-
Ranidaerank: family
-
Salamandridaerank: family
-
Colubridaerank: family
-
Lacertidaerank: family
-
Geoemydidaerank: family
Geographic Coverages
Data were collected along the lower Sabor river valley and its tributaries, in a buffer of 5 km around the reservoir's margins, from the mouth to 42 km upstream, in the municipalities of Torre de Moncorvo, Alfândega da Fé, Mogadouro, Macedo de Cavaleiros, Vimioso and Bragança.
Bibliographic Citations
Contacts
João Alexandre Cabraloriginator
position: General 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 Travassos
originator
position: Operational 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
Hélia Vale-Gonçalves
originator
position: Fieldwork Coordination
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
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 Braz
originator
position: Technician
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de E
Vila Real
PT
Paulo Barros
originator
position: Technician
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de E
Vila Real
PT
Diogo Carvalho
originator
position: Technician
CITAB - Centro de Investigação e Tecnologias Agro-ambientais e Biológicas, Laboratório de E
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