Habitat
and edaphic preference of Rafflesia R. Br. plant communities in Royal Belum
State Park, Perak, Peninsular Malaysia
A.K.N. Hayati1,
K. Shamsul1*, W.A.W. Juliana2,3, F.S. Mohd. Taib1,
M.N. Shukor1, M.H. Shahril4 and E.A. Filza4
1Department of
Biological Sciences and Biotechnology, Faculty of Science and Technology,
Universiti Kebangsaan Malaysia,Bangi, 43600, Malaysia
2Department of
Earth Sciences and Environment, Faculty of Science and Technology, Universiti
Kebangsaan Malaysia, Bangi, 43600, Malaysia
3Institute for
Climate Change, Universiti Kebangsaan Malaysia, Bangi, 43600, Malaysia
4TNB Research Sdn.
Bhd., No. 1, Lorong Ayer Itam, Kawasan Institusi Penyelidikan, Kajang, 43000,
Malaysia
*Corresponding Author Email : shamsulk@ukm.edu.my
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Abstract
Aim:
To investigate the relationship between the microhabitat conditions and soil
physico-chemical characters of Rafflesia plant communities and to
determine similarities across Rafflesia habitats in Royal Belum State
Park, Perak, Peninsular Malaysia.
Methodology: The site of Rafflesia population and its
microhabitat condition was collected by referring to the previous studies, in
addition to interviewing the related parties. A plot study was constructed in
each Rafflesia habitat in Royal Belum State Park, Perak and the soil
sample was collected for estimating their characteristics.
Results:
Rafflesia population is distributed between 207 - 386 m asl, with the
surface slope of 8 to 58° and located 1.0-450.0 m from nearby
water sources. The percentage of clay has a strong influence in X-Ray and
distance to water source affected the habitat in Sg. Ruok-Papan. Ca2+
was an important soil component in Sg. Kooi while in Sg. Gadong 2 and Sg.
Selantan, nitrogen was the most important soil attribute. The dendrogram
reveals Sg. Kooi and Sg. Gadong 1 were the most similar habitats while Sg.
Ruok differed significantly in terms of the microhabitat and soil
physicochemical conditions tested.
Interpretation: This study shows that different plant
communities favoured different conditions in terms of microhabitat condition
and the physico-chemical characteristics of soil, despite being located
within the same forest range. Since this study covered only small forest
range, large sampling size which cover different forest area is needed to
come to a conclusion regarding preference of Rafflesia plant communities
towards its habitat.
Key
words:
Ecological study, Microhabitat condition, Royal Belum State Park, Soil
physicochemical characters
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