Studi Keanekaragaman Hayati Di Areal Perizinan Berusaha Pemanfaatan Hutan Pt. Korintiga Hutani Kabupaten Lamandau Dan Kabupaten Kotawaringin , Provinsi Kalimantan Tengah

Abstract

The PBPH-HT concession of PT Korintiga Hutani in Central Kalimantan represents a complex production landscape dominated by 72,533 ha of industrial Eucalyptus plantations interspersed with secondary forest fragments, mixed agroforestry patches, shrublands, and riparian habitats. This study aimed to assess the biodiversity status and ecological function of flora and fauna within the concession, using rapid assessment methods, line-transect observations, and interviews with local communities, company personnel, and BKSDA officers. Primary data on species presence, habitat characteristics, and indirect wildlife signs were combined with secondary data and cross-checked with IUCN Red List, CITES Appendices, and national protection regulations (P.106/2018). The survey recorded eight native plant species, four of which are classified as threatened. Wildlife assessments documented 14 mammal species, including two threatened taxa, 20 bird species, and four herpetofauna species. Critically important species such as the Bornean orangutan (Pongo pygmaeus, CR) and red langur (Presbytis rubicunda, VU) were confirmed in natural forest remnants, notably in Bukit Telawih and Bukit Panjang, which retain structurally complex vegetation and function as high-quality habitat patches. Ecologically, these forest fragments act as biodiversity reservoirs within a plantation matrix, supporting essential processes such as seed dispersal, pollination, nutrient cycling, and trophic regulation. They also function as source habitats and movement corridors that facilitate gene flow and enhance landscape connectivity. The presence of threatened and endemic species indicates that these fragments maintain conservation value equivalent to semi-natural forests elsewhere in Borneo. Overall, the findings underscore the necessity of integrating biodiversity conservation into industrial plantation management through the protection of residual forests, enhancement of ecological corridors, and implementation of wildlife-friendly silvicultural practices.