Local wind damage in Barito Ulu, Central Kalimantan: a rare but essential event in a lowland dipterocarp forest?

2001 ◽  
Vol 17 (3) ◽  
pp. 473-475 ◽  
Author(s):  
J. PROCTOR ◽  
F.Q. BREARLEY ◽  
H. DUNLOP ◽  
K. PROCTOR ◽  
SUPRAMONO ◽  
...  
Keyword(s):  
Large Scale ◽  
Peninsular Malaysia ◽  
Forest Damage ◽  
Local Wind ◽  
Central Kalimantan ◽  
Dipterocarp Forest ◽  
North East ◽  
Detailed Assessment ◽  
Lowland Dipterocarp Forest ◽  
Trail System

The importance of disturbances for the dynamics of tropical forests has been described by Whitmore & Burslem (1998). Among the phenomena which they classify as large scale disturbances are those caused by wind. The most extensive of these occur within the hurricane (cyclone) belt (10-20° from the equator) but outside this belt large blowdowns of trees are known to occur, perhaps most spectacularly in the Brazilian Amazon (Nelson et al. 1994). There is evidence that rare wind storms influence the dipterocarp rain forests of Peninsular Malaysia, 2-6°N. One famous storm in November 1880 which devastated hundreds of square kilometres of forests in Kelantan, north-east Malaya, was probably an aberrant cyclone (Wyatt-Smith 1954). Smaller windstorms which have blown down several hectares of forests have been reported from Malaysia including Borneo (Ashton 1993) but their frequency and extent have not been well documented (Whitmore & Burslem 1998). At Barito Ulu, Central Kalimantan, one such storm occurred recently and the fortuitous combination of a well patrolled trail system and the localization of the storm has allowed a detailed assessment of the forest damage.

Water and heat fluxes above a lowland dipterocarp forest in Peninsular Malaysia

2009 ◽  
pp. n/a-n/a ◽  
Author(s):  
Satoru Takanashi ◽  
Yoshiko Kosugi ◽  
Shinjiro Ohkubo ◽  
Naoko Matsuo ◽  
Makoto Tani ◽  
...  
Keyword(s):  
Peninsular Malaysia ◽  
Heat Fluxes ◽  
Dipterocarp Forest ◽  
Lowland Dipterocarp Forest

The influence of gibbon primary seed shadows on post-dispersal seed fate in a lowland dipterocarp forest in Central Borneo

2005 ◽  
Vol 21 (3) ◽  
pp. 255-262 ◽  
Author(s):  
Kim R. McConkey
Keyword(s):  
Seed Fate ◽  
Central Kalimantan ◽  
Fruit Abundance ◽  
Seed Shadow ◽  
Dipterocarp Forest ◽  
Lowland Dipterocarp Forest ◽  
Seed Shadows ◽  
Insect Predation ◽  
Dispersal Events

The natural seed shadow created by gibbons (Hylobates mulleri×agilis) in Central Kalimantan, Indonesia, was monitored over 11 mo to discern the role of gibbons and post-dispersal events in the spatial pattern of seed germination. Variability in the content and distribution of 183 scats was used to determine which, if any, scat characteristics influenced seed fate. Nine scat characters were evaluated: (1) seed number; (2) number of seed species per scat; (3) scat weight; (4) seed load; (5) rainfall; (6) scat density; (7) distance to nearest fruiting tree; (8) ripe fig abundance; (9) non-fig fruit abundance. More than 99% of monitored seeds were killed, removed, or had germinated during the monitoring period. Vertebrates killed or removed most seeds (86%) and the probability of them moving seeds was highly dependent on non-fig fruit abundance at the time of deposition; factors (2), (6) and (7) also influenced seed removal/predation by vertebrates, depending on whether seeds were deposited in peak or non-peak times of consumption. Insect predation (2% of seeds) occurred mainly in scats that were deposited in months of high ripe fig abundance, while the actual chance of a seed germinating (11% of seeds) was influenced by non-fig fruit abundance at time of deposition and number of species in the original scat. The gibbon-generated seed shadow was profoundly altered by post-dispersal events and variation in the characteristics of the shadow had little lasting impact on the probability of seeds germinating.

Regeneration of a Clear-Cut Plot in a Lowland Dipterocarp Forest in Pasoh Forest Reserve, Peninsular Malaysia

Pasoh ◽  
2003 ◽  
pp. 559-568 ◽  
Author(s):  
Kaoru Niiyama ◽  
Abdul Rahman Kassim ◽  
Shigeo Iida ◽  
Katsuhiko Kimura ◽  
Azizi Ripin ◽  
...  
Keyword(s):  
Peninsular Malaysia ◽  
Forest Reserve ◽  
Dipterocarp Forest ◽  
Clear Cut ◽  
Lowland Dipterocarp Forest ◽  
Pasoh Forest Reserve

Trophic structure of bat communities in the understorey of lowland dipterocarp rain forest in Malaysia

1990 ◽  
Vol 6 (4) ◽  
pp. 421-431 ◽  
Author(s):  
Charles M. Francis
Keyword(s):  
Rain Forest ◽  
Trophic Structure ◽  
Peninsular Malaysia ◽  
Bird Communities ◽  
Neotropical Forests ◽  
Dipterocarp Forest ◽  
Neotropical Forest ◽  
Lowland Dipterocarp Forest ◽  
Sampling Procedures ◽  
Foraging Ranges

ABSTRACTBat communities in the understorey of primary lowland dipterocarp forest in peninsular Malaysia and Sabah were sampled with mist nets and harp traps to estimate their trophic structure. Overall, 4 of 26 species (15%) at one site, and 6 of 33 species (18%) at the other site were frugivores, while the remainder were insectivores. In terms of individuals, 7–12% of all captures were frugivores. However, the true proportion of frugivores at both sites was probably closer to 1%, because the sampling procedures were strongly biased towards frugivores. In contrast, previously published studies indicate that frugivores comprise 34–48% of species, and up to 80% of individuals in bat communities in the understorey of Neotropical forest. These results support the hypothesis, developed from studies of bird communities, that the under-storey of Malaysian dipterocarp forest supports relatively few obligate frugivores, at least in non-masting years. However, further data are required on bats in the canopy, and on the foraging ranges of bats to compare the absolute densities of bats in Malaysian and Neotropical forests.

scholarly journals Effects of nitrogen and phosphorus fertilization in a lowland evergreen rainforest

1999 ◽  
Vol 354 (1391) ◽  
pp. 1825-1829 ◽  
Author(s):  
E. Mirmanto ◽  
J. Proctor ◽  
J. Green ◽  
L. Nagy ◽  
Suriantata
Keyword(s):  
Nutrient Addition ◽  
Phosphorus Fertilization ◽  
Nitrogen And Phosphorus ◽  
Central Kalimantan ◽  
Dipterocarp Forest ◽  
Separate Treatment ◽  
Lowland Dipterocarp Forest ◽  
The Difference ◽  
Set Up ◽  
Nutrient Addition Experiment

A nutrient addition experiment was set up in August 1993 in a species–rich primary lowland dipterocarp forest in Barito Ulu, Central Kalimantan, Indonesia. The following treatments were applied: control, +N, +P and +NP. There were five blocks of four 50 m times 50 m plots with a separate treatment for each plot. Fine litterfall was measured on all the plots from l May 1994 for 12 months. Litterfall mass and phosphorus concentrations were significantly higher in all the fertilizer treatments compared with the controls. All trees (greater than or equal to 10 cm dbh) were measured in August 1993 and in August 1998, and there was no significant girth increment response to fertilization in dipterocarps or non–dipterocarps. Dipterocarps of the red meranti group showed a doubling of girth increment in the +NP treatment, however, the difference from the control fell short of significance.

scholarly journals A checklist of amphibians at Lubuk Semilang Recreational Park, Langkawi Island, Kedah, Peninsular Malaysia

2020 ◽  
pp. 9-26
Author(s):  
O. Dasi ◽  
S. Shahriza
Keyword(s):  
Endemic Species ◽  
New Records ◽  
Peninsular Malaysia ◽  
Amphibian Species ◽  
Dipterocarp Forest ◽  
Lowland Dipterocarp Forest ◽  
Fejervarya Limnocharis

A study on amphibian fauna at the lowland dipterocarp forest of Lubuk Semilang Recreational Park, Langkawi, Kedah, Peninsular Malaysia was conducted between December 2018 and June 2019. We recorded 18 species of amphibians from 14 genera and 6 families. These include seven new records for Lubuk Semilang, which are Fejervarya limnocharis, Limnonectes hascheanus, Megophrys aceras, Kaloula pulchra, Microhyla butleri, Pulchrana laterimaculata, and Polypedates discantus. We also recorded a new anuran record for Langkawi Archipelago, Pulchrana laterimaculata, and two endemic species of Malaysia, Leptobrachium smithi and Limnonectes macrognathus. Results from this survey indicate the amphibian species of the Langkawi Archipelago has increased from 28 to 29 species. Data published through GBIF (Doi: 10.15470/f0diow)

Recruitment, growth and mortality of tree species in a lowland dipterocarp forest in Peninsular Malaysia

1987 ◽  
Vol 3 (4) ◽  
pp. 315-330 ◽  
Author(s):  
N. Manokaran ◽  
K. M. Kochummen
Keyword(s):  
Basal Area ◽  
Mortality Rates ◽  
Peninsular Malaysia ◽  
Recruitment Rate ◽  
Size Class ◽  
Tree Density ◽  
Pioneer Species ◽  
Forest Reserve ◽  
Dipterocarp Forest ◽  
Lowland Dipterocarp Forest

ABSTRACTChanges in the lowland dipterocarp forest structure and composition are described for a 34-year period between 1947 and 1981 in Sungei Menyala Forest Reserve, Peninsular Malaysia. Although tree density declined by about 10%, basal area changed little, averaging 32.4 m2 ha−1. Size class distributions in 1947 and 1981 were not significantly different. Mortality rates were independent of size class. Mortality exceeded recruitment during the first 16 years to 1963, but was thereafter almost exactly balanced by recruitment. Recruitment rate increased significantly for the latter part of the study.Mortality was greater than average for understorey species and lower for emergents. Pioneer and late seral species together showed significantly higher mortality rates. Amongst the commoner species, emergent, late-seral and pioneer species showed the highest annual diameter growth rates with species averages over all size classes exceeding 3 mm yr−1; rates for main-canopy species were between 1.5 and 2.5 mm yr−1, and understorey species generally less than 2 mm yr−1.Species richness was almost identical in 1947 and 1981 (243, 244 species), but a clear decline (to 229 species) between 1953 and 1971 was recovered by 1981. Most species showed little net change in density over the 34-year period, but eight of the 32 commoner species showed significant changes, all unidirectional. These changes in species composition are not negligible, but further analysis is needed to determine if, for example, they are related to disturbance of part of the plot in 1917.

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