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 296 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.
Téléchargez la dernière version de la ressource en tant qu'Archive Darwin Core (DwC-A), ou les métadonnées de la ressource au format EML ou RTF :
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Les chercheurs doivent citer cette ressource comme suit:
Cabral J A, Barros P, Vale-Gonçalves H M, Bastos R, Santos R, Múrias, T (2019): EDP Foz-Tua: Small Mammals - Complementary Studies  & Monitoring Ecological Program . v1. EDP - Energias de Portugal. Dataset/Samplingevent. http://ipt.gbif.pt/ipt/resource?r=tua_small_mammals_ec43&v=1.0
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est EDP - Energias de Portugal. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.
Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 1134ee3f-56a1-4c58-b1ff-d2a8ddb2cbc1. EDP - Energias de Portugal publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Portugal.
Small mammals; occurrence; observations; captures; Sherman traps; Rodentia; Eulipotyphla
Personne ayant créé cette ressource:
Personne pouvant répondre aux questions sur la ressource:
Personne ayant renseigné les métadonnées:
The data were collected within a 5-km buffer around the valley of the River Tua (Northeast Portugal),up to 50 km from the mouth, in the municipalities of Carrazeda de Ansiães, Alijó, Murça, Vila Flor and Mirandela.
|Enveloppe géographique||Sud Ouest [41,144, -7,581], Nord Est [41,515, -7,144]|
The taxonomic coverage of this dataset spans 1 phylum, 1 class, 2 orders, 7 families, 8 genera and 10 species.
|Family||Muridae, Cricetidae, Gliridae, Erinacidae, Sciuridae, Talpidae|
|Date de début / Date de fin||2010-02-22 / 2011-10-28|
Données sur le projet
The dataset contains records of small mammals (Rodentia and Eulipotyphla) collected in plots along the lower Tua River valley and in Ferradosa stream (Douro sub-basin), included in the Complementary Studies of the Environmental Impact Assessment (2010) and in the Ecological Monitoring Program (2011) of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected between February and December 2010 (Complementary Studies) and October 2011 (Ecological Monitoring Program), during field visits carried out, respectively, in 29 and 18 sampling points with favourable habitats for small mammals (fallows, cork oak woodlands, bushes, riverine, abandoned orchards, reed beds, juniper woodlands, chestnut woodlands), within a 5-km buffer around the lower Tua River valley. The occurrence of the target taxa was documented through 319 observation/capture events in 47 sampling points. In total, 12 taxa were identified, of which 10 to the species rank and two to the genus rank. The most abundant species were Mus spretus (126 observation/capture events), Apodemus sylvaticus (94), and Crocidura russula (22).
|Titre||EDP Foz-Tua: Small Mammals - Complementary Studies  & Monitoring Ecological Program |
|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-basins of river Tua, prior to the construction and subsequent flooding of the lower part of this river valley by the Foz-Tua Hydroelectric Dam, and in Ferradosa stream (Douro sub-basin), which was used as a control site (only for the Ecological Monitoring Program). The sampling was centered in suitable habitats for small mammals (fallows, cork-oak woodlands, bushes, riverine, abandoned orchards, reedbeds, juniper woodlands, chestnut woodlands) in a 5-km radius buffer around the future reservoir banks, and up to 50 km from the Tua mouth.|
|Description du design||The objective of the study was to characterize the fauna of small mammals in a buffer of 5 km around the Tua lower valley before the dam construction, and to gather quality data to provide information needed to evaluate the impacts of dam construction on this community and to support the design and implementation of mitigation and/or compensation measures. The Ferradosa stream was used as a control site external do the Tua River valley.|
Les personnes impliquées dans le projet:
Sampling was designed to cover the main habitat types for small mammals (fallows, cork-oak woodlands, bushes, riverine, abandoned orchards, reedbeds, juniper woodlands, chestnut woodlands) in and around the lower Tua valley affected by the Foz-Tua dam and in the Ferradosa stream (Douro sub-basin). Each sampling plot was visited once during three consecutive days between February-March and October-December 2010 (Complementary Studies) or October 2011 (Ecological Monitoring Program). In January-February of 2010 a total of 29 sampling points were established in the framework of the Complementary Studies of the Foz-Tua dam to provide a preliminary assessment of the small mammal fauna in the area. These plots served as a baseline for the sampling grid of the Ecological Monitoring Program of this group, which was tested in October-November 2010, with 19 points (of which 14 were effectively used) set in a 2x2 km UTM grid (one plot per square) centered in the lower Tua River valley in the area affected by the dam. Based on the results of this experience, a final grid of 19 sampling plots (of which 17 were effectively used) was established in each 2x2 km square (and in three additional points located in the Ferradosa stream), in October 2011. Each plot was selected in function of its habitat suitability for small mammals, and a preliminary inspection looking for signs of the presence of small mammals (tracks, feces, latrines) was performed. When this inspection was positive, the information was recorded and the plot was earmarked for a capture session. Each capture session consisted in the installation of lines of 25 “Sherman” traps distributed every 2-5 m in open areas and 15 m in closed habitats (e.g., bushes and woodlands), covering the maximum number of suitable habitats in the sampling plot. Traps remained set for three days and three consecutive nights and during their activation period they were baited with apple, carrot and commercial cat food (for Soricidae) and were covered with vegetation carded cotton, to provide food and thermal comfort for captured individuals, respectively. Each trap was controlled at least twice a day (one in the morning and another in the late afternoon). All the captured specimens were administered with light volatile ethyl ether anesthesia, to ensure a correct and safe manipulation procedure. Each specimen was individually assigned a temporary marking (haircut), aiming to recognize the animal in the event of a recapture situation, aged and sexed (with the exception of shrews when non-lactating), measured and subsequently released. The following biometric parameters were taken: body length, tail length, hind leg length, ear length and weight. All identifications were made with appropriate keys (Gonçalves, 2006) and field guides (Blanco, 1998). The captures were carried out under the License No 378/2010 / CAPT, issued on October 26 2010, by the Institute of Nature and Forests Conservation (ICNF) to the senior field technician.
|Etendue de l'étude||The data were collected within a 5-km buffer around the lower Tua River valley (Northeast Portugal), up to 50 km from the mouth, and in Ferradosa stream (Douro sub-basin) in the municipalities of Carrazeda de Ansiães, Vila Flor, Alijó, Murça and Mirandela.|
|Contrôle qualité||All identifications were performed by qualified technicians|
Description des étapes de la méthode:
- To be completed
- Gonçalves, H. (2006). Inventariação e caracterização dos micromamíferos no Parque Natural do Alvão. Relatório final de estágio da Licenciatura em Ecologia Aplicada. Universidade de Trás-os-Montes e Alto Douro, Vila Real. 104p.
- Blanco, J. 1998. Mamíferos de España. Insectívoros, Quirópteros, Primates y Carnívoros de la Península Ibérica, Baleares y Canarias. Vol. I. Editorial Planeta. Barcelona
|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.|
|Description de la fréquence de mise à jour||This resource will be regularly checked for accuracy.|