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https://doi.org/10.1023/A:1009789922595
Title: | The ecology of very small-seeded shade-tolerant trees and shrubs in lowland rain forest in Singapore | Authors: | Metcalfe, D.J. Grubb, P.J. Turner, I.M. |
Keywords: | Life-form Litter Mycorrhiza Nutrients Regeneration niche Seed size |
Issue Date: | 1998 | Citation: | Metcalfe, D.J., Grubb, P.J., Turner, I.M. (1998). The ecology of very small-seeded shade-tolerant trees and shrubs in lowland rain forest in Singapore. Plant Ecology 134 (2) : 131-149. ScholarBank@NUS Repository. https://doi.org/10.1023/A:1009789922595 | Abstract: | A study was made in Bukit Timah Nature Reserve of niche differentiation among 11 woody species that have very small seeds (22-460 μg) and establish in deep shade, i.e., where the indirect site factor (isf) under cloudy conditions is ≤2%, and one taxonomically related light-demander (seed mass 33 μg). Comparative observations were made on changing light requirement with age. The species varied from shrubs and treelets (Urophyllum) via small to medium-height trees (Ficus, Pternandra) to tall trees (Gynotroches and Pellacalyx). In general, the shorter species fruited in deep shade while the taller needed direct irradiance. All produced ripe fruit at least once a year. In 1-3% isf seedling mortality over 11 months was 24% for Urophyllum hirsutum and 57% for Pternandra echinata (two strongly shade-tolerant species); survivors produced appreciable new stem and leaf tissue. For two more light-demanding species (Ficus grossularioides and F. fistulosa) mean lamina area was much larger in small gaps (10% isf) than in the understorey ( | Source Title: | Plant Ecology | URI: | http://scholarbank.nus.edu.sg/handle/10635/101895 | ISSN: | 13850237 | DOI: | 10.1023/A:1009789922595 |
Appears in Collections: | Staff Publications |
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