Distribution and Conservation Status of Dipterocarpus retusus in Mount Tilu Forest, West Java
DOI:
10.29303/jbt.v26i4.12894Published:
2026-11-02Downloads
Abstract
This study aimed to describe the distribution and conservation status of Dipterocarpus retusus in Gunung Tilu Forest, West Java, Indonesia, using secondary data from the Forum Pohon Langka Indonesia (FPLI). The study employed a descriptive approach based on a database containing 217 records of various tree species, including records of D. retusus collected during field surveys in 2025. The unit of analysis was each recorded individual, grouped by discovery location. The analysis identified 78 records of D. retusus across six locations: Capar, Gompong, Cimanglayang, Jadria, Ebeg-ebeg, and Panenjoan. Ebeg-ebeg had the highest number of records (18), whereas Gompong had the lowest (6). The recorded locations varied in environmental conditions, with elevations of 545–955 m above sea level, air temperatures of 16–29 °C, relative humidity of 54–86%, light intensity of 227–833 lux, and soil pH values of 4.0–7.0. These data describe the range of conditions recorded at sites where the species was documented but do not establish causal relationships between environmental factors and its distribution. D. retusus was classified as Endangered (EN) in the IUCN Red List assessment published in 2017. A separate study reported seedlings and saplings of the species along the Cimanglayang and Jadria routes, providing evidence of natural regeneration at those surveyed locations. However, the available secondary data are insufficient to determine the overall status, population trend, or long-term regeneration dynamics of D. retusus throughout Gunung Tilu Forest. These findings provide baseline information to support further population monitoring and conservation planning.
Keywords:
Biodiversity Conservation status Dipterocarpus retusus Species distribution Tropical forestReferences
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