Floristic Study in Orchards - Mafra and Torres Vedras, Portugal

Study Extent

The geographic scope of this study focuses on the central area of mainland Portugal, in the municipalities of Mafra and Torres Vedras.

Sampling

Two sampling methods were used simultaneously: 1 - The one adopted by G. Barralis, from the Laboratoire de Malherbologie in Dijon defined by its scales - coefficient of abundance and scale of phenological states. 2 - The one defined by Braun-Blanquet (School of Zurich-Montpellier), defined by its scales - abundance/covered scale and sociability scale.

Quality Control

All initial data was inserted in a specific relational database built specifically for the project, which implemented several quality control methods. In the preparation of the dataset for GBIF publication, data consistency was verified using cluster algorithms using OpenRefine.

Method steps

1. The data was transferred to digital format. In the events table, the locations were georeferenced through GeoLocate (WGS84). After obtaining all the coordinates, the remaining fields of the location were extracted using the Location Extractor application. The entire event table was placed in DwC format. In the case of the occurrences table, after digitizing the data, the csv was run through the Species Extractor application, to update the scientific names and fill in the remaining fields. The matchType field was revised and the taxonomicStatus column was added where typos or scientific name updates were indicated. All mandatory columns were added, and the respective data filled.

This dataset includes 636 records referring to specimens of 39 different families, 113 genera and 151 species/subspecies, in 24 event sites.

1. Plantae
   rank: kingdom
2. Tracheophyta
   rank: phylum
3. Magnoliopsida
   rank: class
4. Liliopsida
   rank: class
5. Polypodiopsida
   rank: class

The sample events are in mainland Portugal, in the municipalities of Mafra and Torres Vedras.