Petrone, A., Pereira, F., Elias, R. B., & Borges, P. A. V. (2025). Mapping Vascular Plant Diversity on São Jorge Island under the PRIBES project. Version 1.0. Universidade dos Açores. Samplingevent dataset. DOI:10.15468/drbja9
This study was conducted on São Jorge Island, part of the Central Group of the Azores Archipelago in the North Atlantic Ocean. The island is a narrow volcanic ridge approximately 55–56 km long and 6.5–8 km wide, with an area of about 237–246 km². Its highest elevation is Pico da Esperança (1,053 m a.s.l.) (Madeira & Brum da Silveira, 2003). A total of 243 vascular plant taxa were recorded across São Jorge Island, encompassing 8 classes, 40 orders, and 89 families. These records correspond to 4,524 individual plant occurrences, including repeated observations of the same species across different sites. As each photographic observation is tied to unique geographic coordinates, all recorded specimens represent new spatial records for the island’s flora. Among the taxa, 53 are considered endemic to the Azores, 131 are introduced, 58 are native and one species (Dracaena draco) is of indeterminate status. These correspond to 1,774 individual occurrences of endemic taxa, 1779 introduced, 970 native and one with indeterminate status. At the family level, 31 families include endemic taxa, 63 include introduced taxa, 34 include native taxa, and one family contains a taxon of indeterminate status.
