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This Expedition was organised by the Institute of Biodiversity and Environmental Conservation
(IBEC), UNIMAS
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ASEAN Review of Biodiversity and Environmental
Conservation
A Publication of
MIMCED All rights reserved (C) 1999-2002
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SCIENTIFIC
EXPEDITION TO
BARIO
THE
KELABIT HIGHLANDS OF SARAWAK
Articles published
from the expedition
Article
V
http://www.arbec.com.my/pdf/art1julaug99.pdf
FLORISTIC COMPOSITIONS AND
STRUCTURES OF FOREST AT BARIO HIGHLANDS, SARAWAK
I. B. Ipor, C.S. Tawan, J. Ismail & O. Bojo
Faculty of Resource Science & Technology Universiti Malaysia Sarawak
ABSTRACT
Four localities, viz., Bario Asal, Pa’ Ukat, Aur Bilak Ligan and Batu Lawi
were surveyed using 20m x 20m plots. The flonstic composition and structures
of the forest in this plots were determined. The types of forest associations
established from the survey included Cratoxylum formosum—Eugenia rugosa
association for Bario Asal, Gymnostoma nobile— Calophyllum griseum
association for Pa’ Ukat, Agathis borneensis—Myristica malaccensis
association for Aur Bilak Ligan and Agathis borneensis—Payena maingayi
association for Batu Lawi. The number and species diversity of trees surveyed
revealed that the degree of stratification and tree size varied between
localities. The biomass of these forests ranged between 74.24 tlha to 2,225.49
tlha. The total above ground biomass values from Batu Lawi (1650m a.s.l.) was
comparatively high compare to the forest of Bario Asal. The high value of
biomass at this particular location was mainly contributed by mature Agathis
borneensis trees.
Article VI
http://www.arbec.com.my/pdf/art2julaug99.pdf
SPECIFIC GRAVITY OF AGATHIS
BORNEENSIS WARB. OF THE KELABIT
HIGHLANDS
J. Ismail, I.B. Ipor & Cs. Tawan
Faculty of Resource Science and Technology, Universiti
Malaysia Sarawak
ABSTRACT
The dominant tree species, Agathis borneensis Warb., found in the Kelabit
Highlands is large, tall and straight. A study was carried out to evaluate the
specific gravity (SG) of its wood. Woods from thirty A. borneensis trees were
collected from two different locations of the Kelabit Highlands. Sapwood and
heartwood specific gravities were determined from thirty cores measuring 5.15mm
in diameter The specific gravity of sapwood from Pa’ Merario varied from 0.34
to 0.54 and while that of Batu Lawi ranged from 0.31 to 0.45. The SG of sapwood
from both sites however averaged at 0.37. For heartwood, the SG ranged from 0.35
to 0.56 and 0.34 to 0.52, for
cores taken from Pa’ Merario and Batu Lawi, respectively The average SG of the
heartwood was significantly higher than the sapwood. Variation in SG was due to
differences in wood types only SG did not differ significantly between tree
characteristics and locations. No correlation was found among SG, diameter at
breast height (DBH) and wood types.
Article VII
http://www.arbec.com.my/pdf/art3julaug99.pdf
PROVISIONAL ACCOUNT AND
CHECKLIST OF FERNS AND FERN-ALLIES IN BARIO, KELABIT HIGHLANDS, SARAWAK
Razali Jaman, K. Mat-Salleh
& A. Latiff,
Botany Department, Universiti Kebangsaan Malaysia
ABSTRACT
A total of 93 species in 51 genera and 24 families of pteridophytes are reported
within the Bario area. These represent approximately 15% of the pteridophyte
flora of Sarawak. The Marratia sambucina record is the first for Sarawak and
second for Malaysia. In addition, several field collections of Taenitis,
Diplazium and Christella are still awaiting identification to the species level.
Overall, specimens collected in the Bano expedition show that Polypodiaceae
constitutes the largest number of species, totalling 15 species.
Article VIII
http://www.arbec.com.my/pdf/art4julaug99.pdf
THE LICHENS IN BARIO
HIGHLANDS:
THEIR
NATURAL OCCURRENCE AND SECONDARY ETABOLITES
Laily B. Din’,
Ghazally Ismail’ & John A. Elix2
Universiti
Malaysia Sarawak,
2Australian
National University
ABSTRACT
A total of 36 lichen specimens from 13 genera was collected from the
heath forest of Barb Highlands. Thirty-five specimens were identified to species
level and one to generic level. Of the species identified, seven represented new
records for the island of Borneo. One species, Parmotrema acrotrychum was
previously known only from Papua New Guinea and Queensland, Australia and this
study had significantly extended its distribution range to the western region.
Three Asia-Australia species Parmotrema subcoral linum, Physcidia cylindrophora
and Relicina sublanea were also discovered in this study |