SPECIES ASSEMBLY AND SITE PREFERENCE OF TREE SPECIES IN A PRIMARY SERAYA-RIDGE FOREST OF PENINSULAR MALAYSIA

Authors

  • Azizi Ripin

Keywords:

Cluster analysis, ordination, indicator species, seraya-ridge forest, Malaysia

Abstract

The paper describes the use of main species as the criteria to classify forest sites using multivariate methods. The main objective is to clarify indicator species and its site preferences in a typical primary seraya-ridge forest. The sample is based on 150 subplots (20 x 20 m), from a six-hectare plot (200 x 300 m). Groups of
sites were differentiated using hierarchical clustering analysis and ranked using
ordination methods. Indicator species analysis determined the characteristic species of particular site group. Eight site groups were identified. The ordination results showed a strong correlation with elevation gradient. Most of the characteristic species showed strong association with elevation gradient and topographic positions, while generalist species showed weak correlation. The indicator values of 39 characteristic species at each step of hierarchical structure were computed and tested with the mean indicator value obtained from a Monte Carlo randomisation procedure at p = 0.01. The characteristic species which had broad niche breadths in the higher elevation included Shorea curtisii, Lithocarpus wallichianus and Eurycoma longifolia while in the lower elevation, the characteristics species included Pimelodendron griffithianum, Antidesma
cuspidatum and Artocarpus lanceifolius. Several species such as Drypetes polyneura and Gironniera parvifolia had been identified as requiring narrower site preferences. The diagram of hierarchical cluster and associated indicator species provides a simple and intuitive way to describe species assemblages, while the ordination helps in explaining their site preferences.

Downloads

Download data is not yet available.

Downloads

Published

2022-08-23

How to Cite

Azizi Ripin. (2022). SPECIES ASSEMBLY AND SITE PREFERENCE OF TREE SPECIES IN A PRIMARY SERAYA-RIDGE FOREST OF PENINSULAR MALAYSIA. Journal of Tropical Forest Science (JTFS), 14(3), 287–303. Retrieved from https://jtfs.frim.gov.my/jtfs/article/view/1287

Issue

Section

Articles
Bookmark and Share