Botanical data for the conservation of the Victoria-Anepahan Mountain Range, Palawan, Philippines

Abstract

The Victoria-Anepahan Mountain Range (VAMR) in Palawan, Philippines, is a botanically significant yet threatened mountain range that harbors a rich diversity of plant species. This paper reviewed the botanical studies conducted in VAMR, collated published species data and produced a consolidated and updated species list of plants in VAMR. Analysis of temporal and spatial distribution of botanical studies showed that research activities have been sporadic, with periods of high activity followed by gaps. The dominant focus has been on new species discovery, accounting for over 70% of the studies. In contrast, floristic surveys and ethnobotanical studies have been relatively limited. Consolidation of data from 18 studies resulted in a list comprised of 255 species representing 187 genera and 93 families. The findings revealed a significant number of endemic plant species (91), many of which are assessed as threatened (51). Critical knowledge gaps were identified, such as the lack of comprehensive floristic surveys in specific areas in VAMR, and insufficient species threat assessments. The geographical coverage of plant species discovery efforts has been limited in the municipality of Narra, while other areas within the larger VAMR, such as Aborlan, Quezon, and Puerto Princesa City, remain underexplored. Additionally, ethnobotanical research has been confined to only two Tagbanua communities, leaving out valuable traditional ecological knowledge from other areas in the region. Addressing these gaps by expanding the geographical and taxonomic scope of botanical and ethnobotanical studies could deepen the understanding of the mountain range’s unique plant biodiversity and its traditional uses.