Adaptasi bekantan (Nasalis larvatus Wumb) terhadap hutan karet: Studi kasus di Kabupaten Tabalong, Kalimantan Selatan)

ADAPTASI BEKANTAN (Nasalis larvatus
Wunnb) TERHADAP HUTAN KARET:
STUDI KASUS 01 KABUPATEN
TABALONG, KALIMANTAN SELATAN

MOCHAMAD ARIEF SOENDJOTO

SEKOLAH PASCASARJANA
INSTITUT PERTANIAN BOG OR
BOGOR
2005

PERNYATAAN MENGENAl DISERTASI DAN SUMBER INFORMASI
Dengan in! says menyatakan bahwa diser1asi Adaptasl Bakentan (Hasa/is
/aMJfus Wunnb) tarh.clap Hutan Karat: Studl Kaaua di Kabupaten

Tabalong, Kalimantan Setatan adaIah karya saya sandiri dan beJum diajukan

dalam bentuk spa pun kepada perguruan tinggi mana pun. Sumber infonnasi
yang berasal atau dikutip dari kerya


yang dHerbilkan maupun tidak diterbHkan

oSeh penulis lain telah disebutkan dalam leks dan dicantumkan dalsm Daftar

Pustaka di bagian akhir disertasi ini.

Bogar, Agustus 2005

Machamad Alief Soendjoto

E 016010041

ABSTRACT
MOCHAMAD ARIEF SOENDJOTO. Adaptation of the Proboscis Monkey (Nasalis
larvatus Wunnb) to Rubber Forests: A Csse Study in TabaJong District, South
Kalimantan Province.
Under supervised HADI SUKADI AUKODRA,
MOHAMMAD BISMARK, HERU SETIJANTO.
The proboscis monkey (Nasalis lalVatuS Wutmb) was confined to peat swamp
forest. mangrove ヲッイ・ウセ@

and riverine forest of the coastal Iowtands. Many aspects
related /0 the probo$Cis monkey cJweUing rubber _
were poorty known. The
research aimed to study the adaptation of the proboscis monkey to rubber forest
The adapta60n was explored through approaches of popula60n distribu6on,
relation between the presence of the proboscis monkey and water source,
vegetation, daily activity pattem, food soun::es and nutrition content, proboscis
monkey's population and sharing of space and food w;th sympatric species, and
vocalization. The successfulness of adaptation of the ptDboscis monkey to rubber
forest was showed mainly by many rubber fotested locations dwelled by the
proboscis monkey and inhabitance long of the ptOboscis monkey in rubber forest
Other parameters showing this successfulness wete moderate sex ratio and
relatively high density of the proboscis monkey. The proboscis montcey adapted
to rubber forest through /eaming. The leaming lasted as long as the

environmentsl changes did not misplace water availability and vegetation
heterogeneity. The causing faclor of such change was stepping, ゥュー・イ。ョセ@
and shifljng treatments of the people on vegetation. The successfulness of
adaptation aiso was supported by complex stomach of the probo$Cis monkey
making this primate able to consume food mainly consisting of leaves. In addition

to /earning, there was no other adaptation. I did not agree hypotheses that the
proboscis monkey was absent inland becaUse of lack of nufrllion. Stepping,
ゥュー・B。ョセ@
and shifljng treatments of the people on vegetation could be
developed as a consetvation model in a cultivated area.
Keywords: rubber BGイ・ウセ@

adaptation, dls/ttbulion, population, vegeta60n, activity,

proboscis monkey

ABSTRAK
MOCHAMAD ARIEF SOENDJOTO. Adaplasi BeIamIan (Nasalis lafVlJ/us WUfTIlb)
terlladap Hutan Karel: Studl Kasus di Kabupaien TabaIong, Kalimantan Selalan.
Dlbimbing oIeh HADI SUKADI AUKODRA. MOHAMMAD BISMARK, HERU
SETIJANTO.
Selama ini bekantan (Nasalis IBrvatus Wurmb) diketahui hidup di huta" rawa
gambul, hUlan mangrove, dan hulan riparian (pesisil). Banyak aspek yang
berkaHan dengan bekantan di tipe habitat hutan taret belum diketahui. Penelffian
berlujuan untuk mengungkap adaptasi bekantan leII1adap hulan karet

Pengungkapan adaptasi dilakukan melalui pendekalan pelS_ran populasi,
hubungan kehadiran bekantan dengan perairan, vegetasi, pols aktivitas harian,
sumber paka" dan kandungan nutrisi. populasi bekantan dan pengandilan ruang
dan pakan dengan spesies simpatrik, serta I«xnunikasi '-1. KeberI1asilan
adaptasi bekantan terhadap huts" karet ditunjukkan terutama oIeh banyaknya
Iokasi berhutan taret yang dihuni oIeh bekantan dan lamanya kepenghunian
bekantan di hutan karet. Parameter lain yang juga menunjukkan keberhasitan itu
adalah rosio kelamin yang mode