| 要旨トップ | 目次 | 日本生態学会第59回全国大会 (2012年3月,大津) 講演要旨
ESJ59/EAFES5 Abstract


一般講演(ポスター発表) P2-054J (Poster presentation)

Difference in population dynamics between logged and unlogged forests in a lowland rain forest in peninsular Malaysia - for the implementation of biodiversity oriented REDD plus -

*Moriwaki,Y.,Yamada,T.,Okuda,T.(Hiroshima Univ.),Rahman Kasim,Abd.(FRIM)

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.


日本生態学会