A decade of canopy-tree seedling survival and growth in two Bornean rain forests: Persistence and recovery from suppression

被引:36
作者
Delissio, LJ
Primack, RB
Hall, P
Lee, HS
机构
[1] Salem State Coll, Dept Biol, Salem, MA 01970 USA
[2] Boston Univ, Dept Biol, Boston, MA 02215 USA
[3] Aarhus Univ Herbarium, DK-8000 Aarhus C, Denmark
[4] Forest Dept, Kuching 93660, Malaysia
关键词
age structure; dipterocarps; growth; Lambir Hills National Park; mortality; population dynamics; resilience; Sarawak; shade-tolerant tree seedlings; tropical rain forest;
D O I
10.1017/S0266467402002420
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The population dynamics of 8500 shade-tolerant tree seedlings of 13 tree species were followed for 10 years at rain forests in Lambir Hills National Park and Bako National Park, Malaysian Borneo. Since these dipterocarp forests have lower rates of canopy gap formation than do rain forests elsewhere, tree seedling biology was predicted to differ. Approximately 50% of seedlings present in 1986 were still alive in 1996. Seven out of thirteen had seedling populations composed predominantly of individuals that were at least 10 years old. These seedlings can undergo alternating periods of relatively rapid and slow growth. Many seedlings that grew rapidly in the first census interval survived through a period of suppression in the second census interval, and conversely many seedlings with a history of suppression had exceptionally high growth in the final census interval. Seedlings of South-East Asian forest tree species arc long-lived and appear to be adapted to long periods of suppression in the understorey.
引用
收藏
页码:645 / 658
页数:14
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