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Vascular Plants of Samar Island Natural Park (SINP), Samar, Philippines. Version 1.2. UNIVERSITY OF SANTO TOMAS HERBARIUM. 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for this study covered key areas across Samar Island Natural Park (SINP), located in the center of Samar Island. Surveys included the northern municipality of Las Navas (secondary growth forests); the eastern municipalities of Can-Avid and Taft (old-growth primary, secondary, and forests over limestone/ultramafic rock); and the central/southern municipalities of Basey, Calbiga, Motiong, Paranas, Pinabacdao, and San Jose de Buan (forests over limestone and old-growth primary forests). The highest point on the island, Mt. 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Sites included diverse forest types, such as secondary growth, old-growth primary, and forests over limestone and ultramafic rock (in the municipalities of Las Navas, Can-Avid, Taft, Basey, Motiong, Paranas, Pinabacdao, and San Jose de Buan).","relatedProjects":[],"abstract":"Samar Island Natural Park (SINP) is the Philippines' largest protected area, featuring extensive karst and significant old-growth forests. Its nomination as a UNESCO World Heritage Site underscores the urgent need for conservation. To support this, and to address the lack of floristic data, this work compiles a comprehensive vascular plant list for SINP using herbarium records, fieldwork, online databases, and existing literature."},"samplingDescription":{"studyExtent":"Fieldwork covered Samar Island Natural Park (SINP) in the center of Samar Island, strategically sampling across northern, eastern, central, and southern municipalities. Sites included diverse forest types, such as secondary growth, old-growth primary, and forests over limestone and ultramafic rock (in Las Navas, Can-Avid, Taft, Basey, Motiong, Paranas, Pinabacdao, and San Jose de Buan). The surveys also included Mt. Huraw, the island's highest point.","sampling":"Two fieldwork expeditions were conducted: the first from October to November 2021 and the second in July 2022. The collection followed an opportunistic method, involving the gathering of at least three to five branches from plants that were bearing reproductive parts (flowers or fruits). For each specimen, detailed ecology, morphological characteristics, and GPS coordinates were recorded, along with photographs taken in the natural habitat. The reproductive structures were preserved separately in 70% ethanol, and all resulting herbarium specimens were deposited at the University of Santo Tomas Herbarium (USTH).","methodSteps":["1. Field Expeditions and Specimen Collection\n2. Specimen Identification\n3. Species Listing and Data Compilation"]},"countryCoverage":[],"collections":[{"name":"Vascular Plants of SINP","identifier":"USTH:SINP","specimenPreservationMethod":"ALCOHOL","curatorialUnits":[]}],"dataDescriptions":[],"dataLanguage":"eng","pubDate":"2026-08-06T00:00:00.000+00:00","maintenanceUpdateFrequency":"AS_NEEDED","maintenanceDescription":"","license":"http://creativecommons.org/licenses/by/4.0/legalcode","dwca":{"coreType":"http://rs.tdwg.org/dwc/terms/Occurrence","extensions":[],"modified":"2026-08-06T08:18:55.979+00:00"},"approximateCounts":{"occurrenceCount":515}}