Rarity Status and Habitat of Shorea laevis and Shorea leprosula in Muara Teweh, Central Kalimantan
Abstract: Forest exploitation
and conversion to other landuse may cause lost of biodiversity, including most
important dipterocarp trees species, i.e. Shorea leprosula and Shorea laevis.
The objective of this study was to determine the rarity status of the two
important shorea species, i.e. S. laevis and S. leprosula, based on IUCN
criteria, their habitat characteristics, and their association with other
species, as one of the basis for determining their conservation strategy as a
part of forest management. This study was conducted in three types of ecosystem
(virgin forest, secondary forest, and fragmented forest) in Muara Teweh, Central
Kalimantan. Methodology used in this
research includes vegetation and tree diversity analysis. Study results showed
that both S. laevis and S. leprosula were included within category of “low
risk” in the 3 types of ecosystem in the forest area being studied. Habitat characteristics which determined the
absence of S. laevis in the virgin forest habitat was the soil permeability
which was too low, whereas other soil chemical and physical properties in the
three types of ecosystems were relatively similar. Presence of S. laevis were positively
associated with species of S. uliginosa, Dialium platysepalum, Dipterocarpus
ibmalatus, Palaquium rostatum, Vatica rasak, Adinandra sp., and Memecyclon
steenis. On the other hand, S. leprosula were positively correlated with
S. kunstleri, Castanopsis sp., Shorea sp., Quercus bennettii, Castanopsis
argentea, and D. hasseltii.
Keywords: threatened species,
Shorea spp., habitat characteristic, ecosystems type, associated species
Author: Sri Wilarso Budi,
Iskandar Zulkarnaen Siregar, Ulfah Juniarti Siregar, Andi Sukendro, Prijanto
Pamoengkas, Tedi Yunanto
Journal Code: jpkehutanangg120014
