Primary forest dynamics in lowland dipterocarp forest at Danum Valley, Sabah, Malaysia, and the role of the understorey

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
David M NewberyC E Ridsdale

Abstract

Changes in species composition in two 4-ha plots of lowland dipterocarp rainforest at Danum, Sabah, were measured over ten years (1986-1996) for trees > or = 10 cm girth at breast height (gbh). Each included a lower-slope to ridge gradient. The period lay between two drought events of moderate intensity but the forest showed no large lasting responses, suggesting that its species were well adapted to this regime. Mortality and recruitment rates were not unusual in global or regional comparisons. The forest continued to aggrade from its relatively (for Sabah) low basal area in 1986 and, together with the very open upper canopy structure and an abundance of lianas, this suggests a forest in a late stage of recovery from a major disturbance, yet one continually affected by smaller recent setbacks. Mortality and recruitment rates were not related to population size in 1986, but across subplots recruitment was positively correlated with the density and basal area of small trees (10-< 50cm gbh) forming the dense understorey. Neither rate was related to topography. While species with larger mean gbh had greater relative growth rates (rgr) than smaller ones, subplot mean recruitment rates were correlated with rgr among small trees. Sep...Continue Reading

References

Mar 29, 1994·Proceedings of the National Academy of Sciences of the United States of America·O L PhillipsR Vásquez

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Citations

Oct 19, 2011·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·William A FosterKalsum M Yusah
Jun 26, 2004·Journal of Environmental Management·Andreas HuthPeter Köhler
Dec 6, 2006·American Journal of Primatology·Marina Davila Ross, Thomas Geissmann
Dec 29, 2011·Personality and Social Psychology Review : an Official Journal of the Society for Personality and Social Psychology, Inc·Selin Kesebir

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