Selective logging makes forest floor light conditions bright. This blight light condition leads us to an idea that trees inhabiting selectively logged forests show a different tree performance (growth, mortality, and fecundity) and population dynamics from those inhabiting primary forest. But little is known how tree performance and population dynamics differ between them.

We compared tree performance between an unlogged forest and a selectively logged forest that was logged 50 years ago under the Malayan Uniform System in the Pasoh Forest Reserve, Malaysia. We used 10-year demographic data for five dipterocarp species that appeared abundantly in both forests and constructed population matrix models to analyze population dynamics.

Population structures were largely different between the forests.Although growth and mortality were not significantly different, recruitment were significantly different between them. Population growth rate was not significantly different from the logged and the unlogged forest. Moreover, LTRE revealed that populate dynamics only subtly differed between them.