Description
The dataset contains records of Cabrera vole (Microtus cabrerae, Cricetidae) and other Microtus spp. collected in a buffer of 2 km around the lower valley of the River Tua, included in the Ecological Monitoring Program (2011-2017) of the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected between April 2012 and May 2017 during field visits to 55 known or presumed colonies of this species in the area of the lower Tua valley directly or indirectly affected by the Foz Tua dam. The occurrence of the species was assessed through the observation of characteristic evidences of presence (scats, trails, latrines, heaps of grass clippings) in plots with favorable habitat. The identification of the scats attributed to the genus Microtus was assessed with molecular analysis.
Enregistrements de données
Les données de cette ressource données d'échantillonnage ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 459 enregistrements.
1 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.
Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.
Versions
Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.
Comment citer
Les chercheurs doivent citer cette ressource comme suit:
Costa H, Salgueiro N, Marques A T, Coelho H, Ferreira C, Oliveira J, Pereira P, Sousa D, Puga J, Caetano M, Neves T, Brito A, Palminha G, Pereira F, Santos J, Queirós L, Múrias T (2019): EDP Foz-Tua: Cabrera vole (Microtus cabrerae) - Ecological Monitoring Program Baseline Studies [2011-2017]. v1. EDP - Energias de Portugal. Dataset/Samplingevent. http://ipt.gbif.pt/ipt/resource?r=edp_tua_cabrera_pme&v=1.0
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est EDP - Energias de Portugal. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.
Enregistrement GBIF
Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : e94838e6-ded0-498e-abc0-df89809999d1. EDP - Energias de Portugal publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Portugal.
Mots-clé
Cabrera vole; Microtus cabrerae; Microtus lusitanicus; small mammals; occurrence; indirect evidence; Rodentia
Contacts
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Couverture géographique
The data were collected within a 5-km buffer around the valley of the River Tua (Northeast Portugal), up to 45 km from the mouth, in the municipalities of Carrazeda de Ansiães, Murça, Vila Flor and Mirandela.
Enveloppe géographique | Sud Ouest [41,166, -7,567], Nord Est [41,507, -7,152] |
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Couverture taxonomique
The taxonomic coverage of this dataset spans 1 phylum, 1 class, 1 order, 1 family, 1 genus and 2 species.
Order | Rodentia |
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Family | Cricetidae |
Couverture temporelle
Date de début / Date de fin | 2012-04-22 / 2017-05-18 |
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Données sur le projet
The dataset contains records of the Cabrera vole (Microtus cabrerae) and other species of the genus Microtus collected in plots along the lower Tua River, 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 April 2012 and May 2017 during field visits to 55 known or presumed colonies of the species within a 5-km buffer around the River Tua lower valley. The occurrence of the target taxa was documented through 275 observation events in 165 sampling points distributed among the 54 known or potential colonies. In total, four taxa were identified, at family (1), genus (1) and species (2) levels. Microtus cabrerae was the most abundant species (188 indirect observations/signs of presence), followed by M. lusitanicus (6).
Titre | EDP Foz-Tua: Cabrera vole (Microtus cabrerae) - Ecological Monitoring Program Baseline Studies [2011-2017] |
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Identifiant | EDP Biodiversity Data |
Financement | The work was funded by EDP - Energias de Portugal, S.A. |
Description du domaine d'étude / de recherche | The study was conducted in part of the sub-basin of river Tua, during the construction and subsequent flooding of the lower part of this river’s valley by the Foz-Tua Hydroelectric Dam. The sampling was centered in suitable habitats for the Cabrera vole in a 2 km radius buffer around the future reservoir banks and up to 35 km from the Tua mouth. |
Description du design | The objective of the study was to monitor changes in the distribution patterns (colony locations) and abundances of the Cabrera vole and other Microtus species in the area of the Foz Tua Hydroelectric Dam during the dam construction (2012-2016), and in the subsequent flooding of the river valley (2016-2017). |
Les personnes impliquées dans le projet:
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Méthodes d'échantillonnage
Sampling was designed to cover all the potential habitats of the Cabrera vole (fallows, bushes, riverine habitats with low vegetation) in a buffer of 2 km around the lower Tua valley affected by the Foz Tua dam. All areas surveyed during the previous phases of the project (Environmental Impact Assessement and Baseline Studies) were included, and new potential places were added, using aerial photos and other cartographic means, followed by a visit to the area. The search for new potential areas was kept along the duration of the study period. This evaluation furnished a total of 55 areas of known, or presumed, colonies of Microtus cabrera (and other Microtidae). Within these areas, a total of 216 sampling plots was surveyed for signs of the presence of Microtidae (number of tracks, faeces, latrines and heaps of grass clippings) in spring/summer (April-May) and autumn (October-December) of 2012-2017. In each known or potential area surveyed, a detailed description of all the relevant biotopes was performed. This description included (a) the type of biotope, (b) the height of vegetation, (c) the characteristics of the landscape surrounding the demarked areas, namely in relation to the land-use and disturbance. Any changes in these parameters observed between sampling periods were recorded. In the first visit to a colony (or in the subsequent visits, if no faces were found) a feacal sample was collected and sent to laboratory to confirm the presence of the species through molecular analysis. This was performed using the PCR-chain reaction method with specific primers (MiKa1 and MiKa2) that amplify a control region (d loop) fragment of mitochondrial DNA to differentiate samples of Microtus cabrerae droppings from other species of the Arvicolidae family. The sequence detection was performed in the automatic sequencer ABIPRISM® 3730-XL DNA Analyzer from Applied BiosystemsTM, with the above mentioned primers
Etendue de l'étude | The data were collected within a 2-km buffer around the Tua lower valley (Northeast Portugal), up to 45 km from the mouth, in the municipalities of Carrazeda de Ansiães, Vila Flor, Murça and Mirandela. |
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Contrôle qualité | All identifications were performed by qualified technicians |
Description des étapes de la méthode:
- To be completed
Métadonnées additionnelles
Objet | 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. |
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Description de la fréquence de mise à jour | This resource will be regularly checked for accuracy. |
Identifiants alternatifs | http://ipt.gbif.pt/ipt/resource?r=edp_tua_cabrera_pme |