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Pollination biology in a lowland dipterocarp forest inSarawak, Malaysia. I. Characteristics of the plant-pollinator communityin a lowland dipterocarp forest.
The dominance of social bees and beetles among pollinators is discussed in relation to the general flowering observed in dipterocarp forests of West Malesia and long-distance-specific pollinators were uncommon compared with the Neotropics. Expand
Plant reproductive phenology over four years including an episode of general flowering in a lowland dipterocarp forest,Sarawak, Malaysia.
Possible causes for general flowering, such as promotion of pollination brought about by interspecific synchronization and paucity of climatic cues suitable for flowering trigger, are proposed, in addition to the predator satiation hypothesis of Janzen (1974). Expand
Impact of severe drought associated with the 1997–1998 El Niño in a tropical forest in Sarawak
Both the species composition and structure are totally affected by such an episodic drought even in a per-humid tropical forest, indicating a change in the size-class structure of the forest. Expand
Environmental correlates of tree biomass, basal area, wood specific gravity and stem density gradients in Borneo's tropical forests
Aim Tropical forests have been recognized as important global carbon sinks and sources. However, many uncertainties about the spatial distribution of live tree above-ground biomass (AGB) remain,Expand
Large trees drive forest aboveground biomass variation in moist lowland forests across the tropics
Aim Large trees (d.b.h. 70 cm) store large amounts of biomass. Several studies suggest that large trees may be vulnerable to changing climate, poten- tially leading to declining forest biomassExpand
Irregular droughts trigger mass flowering in aseasonal tropical forests in asia.
It is shown that this phenomenon is most likely triggered by irregular droughts based on 10 years of observations, and changes in the ENSO cycle resulting from global warming, may have serious ramifications for forest regeneration in this region. Expand
Impact of introduced honeybees, Apis mellifera, upon native bee communities in the Bonin (Ogasawara) Islands
It is suggested that competition for nectar and pollen of the native flowers between honeybees and native bees favors honeybees on the disturbed islands, which are thoroughly invaded by alien nectariferous, sometimes aggressive, weedy plants. Expand
A floristic analysis of the lowland dipterocarp forests of Borneo
Aim To (1) identify floristic regions in the lowland (below 500 m a.s.l.) tropical dipterocarp rain forest of Borneo based on tree genera, (2) determine the characteristic taxa of these regions, (3)Expand
An estimate of the number of tropical tree species
It is shown that most tree species are extremely rare, meaning that they may be under serious risk of extinction at current deforestation rates, and a methodological framework for estimating species richness in trees is provided that may help refine species richness estimates of tree-dependent taxa. Expand
Dioecy in the endemic genusDendrocacalia (Compositae) on the Bonin (Ogasawara) Islands
Dendrocacalia crepidifolia Nakai (Compositae, Senecioneae), the only species of this arboreal genus endemic to Haha Island in the Bonin Islands, was found to be dioecious. Male flowers differ fromExpand