EDP Foz-Tua: Bonneli’s Eagle Prey Species: Columba spp., Alectoris rufa and Oryctolagus cuniculus (line transects) – Compensatory Measures Program, Compensatory Measure MC46B (Management of Raptors’ Feeding Habitats) [2018-2020]

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 384 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

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Cabral J A, Travassos P, Barros P, Carvalho D, Gomes C, Braz L, Duro V, Múrias T (2023). EDP Foz-Tua: Bonneli’s Eagle Prey Species: Columba spp., Alectoris rufa and Oryctolagus cuniculus (line transects) – Compensatory Measures Program, Compensatory Measure MC46B (Management of Raptors’ Feeding Habitats) [2018-2020]. Version 1.0. EDP - Energias de Portugal. Samplingevent dataset. http://ipt.gbif.pt/ipt/resource?r=edp_tua_bird_prey_tr_2018-20&v=1.0

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est EDP. 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 : 8b9d9c28-61df-4b06-81da-850dc8658f55.  EDP publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Portugal.

Mots-clé

Birds; rabbit; prey species; Bonelli’s Eagle; Aquila fasciata; occurrence; winter; spring; observations; transects; compensatory measure MC46B: exploration phase: Foz-Tua dam

Contacts

Couverture géographique

The data were collected within a 5-km buffer around the two territories of the Bonelli’s Eagle (Aquila fasciata) in lower valley of the River Tua (Northeast Portugal), up to 45 km from the mouth, in the municipalities of Alijó, Carrazeda de Ansiães, Vila Flor and Mirandela.

Couverture taxonomique

The taxonomic coverage of this dataset spans 1 phylum, 2 classes, 3 orders, 3 families, 3 genus and 4 species.

Couverture temporelle

Données sur le projet

The dataset contains records of terrestrial birds (Aves) and European rabbit (Oryctolagus cuniculus) collected in the two breeding territories of Bonelli’s Eagle (Aquila fasciata) in the lower valley of the River Tua and included in the Compensatory Measure MC46B (“Management of Raptor’s Feeding Habitats”) (2018-2020) of the Compensatory Measures Program of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected in late spring (June-July) and autumn (September-October) of 2018-2020 during field visits to 64 sampling transects: 30 “intervention” points (identified with a “I”) located near the structures purposely built to promote the occurrence/fixation of the prey species (deforested areas, feeders and drinkers for birds, artificial shelters for rabbits) in the two territories, and 34 “control” points (identified with a “c”) located in the vicinity of the intervention areas. All bird observations were made with binoculars and/or telescopes, whereas the presence of the European Rabbit was assessed both directly (observations) and indirectly (latrines, feaces, tracks). The occurrence of the target taxa (Columba spp., Alectoris rufa and Oryctolagus cuniculus)) was documented through 384 observation events. In total, 334 observations were identified to the species rank. The most abundant species were Oryctolagus cuniculus, with 275 records (22 of live individuals, and 253 of presence – latrines), followed by Columba palumbus (42 records), Alectoris rufa (16) and Columba livia (1).

Les personnes impliquées dans le projet:

Méthodes d'échantillonnage

Sampling was designed to compare the abundances of the target species inside (“intervention” points) and outside (“control” points) the areas were actions of the Compensatory Measure MC46B took place, in the known breeding territories of the Bonelli’s Eagle in the lower Tua valley. A total of 64 sampling transects (30 in intervened areas - 10 in deforested areas, 10 in feeders/drinkers, 10 in artificial shelters – and 34 in non-affected areas (“controls”) were set, which are to be surveyed in the long term. All transects were sampled at least once in late spring and autumn, in the early morning or late afternnon. Each transect had a length of 250 m, in which all birds from the target species and all evidences from O. cuniculus were recorded. In the case of birds, species identification and assessment of age and sex (when possible) were made “in loco”, with the help of appropriate field guides.

Description des étapes de la méthode:

1. To be completed

Métadonnées additionnelles