Skip navigation

Tree species-area and species-diameter relationships at three lowland rain forest sites in Sumatra

Tree species-area and species-diameter relationships at three lowland rain forest sites in Sumatra

Rennolls, Keith and Laumonier, Yves (1999) Tree species-area and species-diameter relationships at three lowland rain forest sites in Sumatra. Journal of Tropical Forest Science, 11 (4). pp. 784-800. ISSN 0128-1283

Full text not available from this repository.

Abstract

Data from three forest sites in Sumatra (Batang Ule, Pasirmayang and Tebopandak) have been analysed and compared for the effects of sample area cut-off, and tree diameter cut-off. An 'extended inverted exponential model' is shown to be well suited to fitting tree-species-area curves. The model yields species carrying capacities of 680 for Batang Ule, 380 species for Pasirmayang, and 35 for Tebopandak (tree diameter >10cm). It would seem that in terms of species carrying capacity, Tebopandak and Pasirmayang are rather similar, and both less diverse than the hilly Batang Ule site. In terms of conservation policy, this would mean that rather more emphasis should be put on conserving hilly sites on a granite substratum. For Pasirmayang with tree diameter >3cm, the asymptotic species number estimate is 567, considerably higher than the estimate of 387 species for trees with diameter >10cm. It is clear that the diameter cut-off has a major impact on the estimate of the species carrying capacity. A conservative estimate of the total number of tree species in the Pasirmayang region is 632 species! In sampling exercises, the diameter cut-off should not be chosen lightly, and it may be worth adopting field sampling procedures which involve some subsampling of the primary sample area, where the diameter cut-off is set much lower than in the primary plots.

Item Type: Article
Uncontrolled Keywords: statistics, trees, rain forest, Sumatra, species-area curves, species-diameter curves non-linear modelling
Subjects: Q Science > QA Mathematics > QA76 Computer software
S Agriculture > SD Forestry
Pre-2014 Departments: School of Computing & Mathematical Sciences
School of Computing & Mathematical Sciences > Department of Computer Science
School of Computing & Mathematical Sciences > Statistics & Operational Research Group
Related URLs:
Last Modified: 14 Oct 2016 08:59
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/236

Actions (login required)

View Item View Item