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Title: Relationships between herb layer and canopy composition in a tropical rain forest successional mosaic in Singapore
Authors: Turner, I.M. 
Tan, H.T.W. 
Chua, K.S.
Keywords: Detrended correspondence analysis
Herb flora
Tropical rain forest
Tropical secondary forest
Issue Date: Nov-1996
Citation: Turner, I.M.,Tan, H.T.W.,Chua, K.S. (1996-11). Relationships between herb layer and canopy composition in a tropical rain forest successional mosaic in Singapore. Journal of Tropical Ecology 12 (6) : 843-851. ScholarBank@NUS Repository.
Abstract: Clusters of four circular forest plots, 0.2 ha in total area, were inventoried for canopy tree (≥30 cm gbh) and terrestrial herb floristic composition at 46 sites in the Central Catchment Nature Reserve, Singapore. The Nature Reserve covers a complex mosaic of lowland tropical forest of different successional stages, with much of the area covered in secondary forest 50-100 years old developed on exhausted agricultural soils. A total of 449 species of tree and 59 species of terrestrial herb were recorded from the clusters. Facultatively-terrestrial epiphytes were excluded from the analysis. Possible reasons for the low herb diversity are discussed. There was a marked similarity between ordinations (detrended correspondence analysis) of the clusters based on tree canopy composition weighted by species relative contribution to cluster total basal area and the herb flora composition, with a highly significant correlation between first axis scores of the two ordinations. Both ordinations showed the three clusters from freshwater swamp forest to be highly distinctive from the rest. The two forest strata exhibited a parallel response to the successional gradient, though the low diversity and patchy distribution of the herb flora blurred the distinction between primary and secondary communities more clearly seen in canopy composition.
Source Title: Journal of Tropical Ecology
ISSN: 02664674
Appears in Collections:Staff Publications

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