EDP Foz-Tua: Diurnal Butterflies (Lepidoptera) - Ecological Monitoring Program (2014-2017)

Data Records

The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 210 records.

1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Costa H, Salgueiro N, Marques A T, Coelho H, Silva M, Caetano M, Romão F, Peixoto M, Múrias, T (2020): EDP Foz-Tua: Diurnal Butterflies (Lepidoptera) - Ecological Monitoring Program (2014-2017). v1. EDP - Energias de Portugal. Dataset/Samplingevent. http://ipt.gbif.pt/ipt/resource?r=edp_tua_lepidopetera_pme&v=1.0

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is EDP. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: d2909e7e-201a-4665-bf68-62d7ceb86a43.  EDP publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Portugal.

Keywords

Butterflies; Diurnal; Lepidoptera; terrestrial; occurrence; observations; captures; line transects; Samplingevent

Contacts

Geographic Coverage

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, and in a small stream in the Douro sub-basin (Ferradosa stream), in the municipalities of Carrazeda de Ansiães, Alijó, Murça, Vila Flor and Mirandela.

Taxonomic Coverage

The taxonomic coverage of this dataset spans 1 phylum, 1 class, 1 order, 5 families, 44 genera and 61 species and 1 subspecies.

Temporal Coverage

Project Data

The dataset contains records of diurnal Butterflies (Lepidoptera) along the lower Tua and Douro river valleys, and included in the Ecological Monitoring Program of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected between July 2014 and August 2017, during field visits to 33 sampling transects with favourable habitats for Lepidoptera within a 5-km buffer around the River Tua lower valley and in Ferradosa stream (Douro sub-basin). The occurrence of the target taxa was documented through 802 positive observation events, of which 40 where identified to the taxonomic level of order, 31 to family, 94 to genus and 637 to species. The most recorded species (≥40 individuals) were Plactynemis latipes (67 observations), Orthetrum coerulescens (54), Calopteryx haemorrhoidalis (45), Onychogomphus forcipatus (43) and Anax imperator (40).

The personnel involved in the project:

Sampling Methods

Sampling was designed to cover the main habitat types for diurnal butterflies 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). Each sampling transect, of about 500 m in lenght, was walked on foot at a constant speed and avoiding stops at hotspots (ie., places with a large influx of Lepidopterans) in order to avoid sampling biases. 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. All individuals observed or captured in 5 m buffer in front or to the sides of the observer (never to the backwards) were recorded, to avoid duplication of counts. Identification was performed by visual observation, using appropriated field guides. Although this method is optimized to monitor flying adults, whenever caterpillars or pupae were observed they were also recorded and photographed for later identification.

Method step description:

1. To be completed

Additional Metadata