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The top 25 Most Endangered Primates in the world

Sumatran Orangutan

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Sumatran Orangutan Pongo abelii Lesson, 1827Indonesia(2000, 2002, 2004)
The Sumatran orangutan is one of two species of the genus Pongo. While the viability of both is in question, the Sumatran orangutan faces a more immediate extinction risk than the Bornean, Pongo pygmaeus (Linnaeus, 1760), and is considered Critically Endangered The species is endemic to the Indonesian island of Sumatra, and is now restricted almost entirely to forests in the lowlands of Nangroe Aceh Darussalam (NAD) and provinces in North Sumatra. More than 1,500 orangutans remain in the Singkil swamp. Sumatran orangutans are estimated to total about 7,500 individuals (based largely on 2002 satellite images), living in 13 fragmented habitat units stretching from northern NAD south to the Sibolga-Tarutung-Padangsidempuan area. It has been suggested that the southernmost population may be genetically distinct from its northern relatives. The largest populations live within NAD province, where recent political turmoi…

Pagai Pig-tailed Snub-nosed Monkey or Simakobu

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Pagai Pig-tailed Snub-nosed Monkey or Simakobu Simias concolor Miller, 1903Indonesia (2002, 2004)The genus Simias is known only from Indonesia’s MentawaiIslands, a small archipelago situated off the west coast of central Sumatra. Until humans arrived approximately two millennia ago, its only predators were probably large constricting snakes and birds of prey. Today, however,hunting and forest conversion are two substantial threats to the four indigenous Mentawaiprimates, all of which are endemic to these islands. Simias concolor was originally considered monotypic, but is now believed to include two subspecies, S. c. concolor from the Pagai islands and Sipora, and S. c. siberu Chasen and Kloss, 1927 from the island of Siberut. The common English name of this large monkey is derived from its short pig-like tail and its shortened nose, which very much resembles that of the Tonkin snub-nosed monkey (Rhinopithecus avunculus) of Vietnam, another Critically Endangered species. S. concolor

Miller’s Grizzled Surili

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Miller’s Grizzled Surili Presbytis hosei canicrus Miller, 1934Indonesia (E. Central Kalimantan) (2004)

All four subspecies of the Asian colobine monkey Presbytis hosei are endemic to north Borneo. The high forehead and crest linking it with the white-fronted surili (P. frontata) from the southern part of the island, mark the crested grizzled surili, P. h. sabana (Thomas, 1893) from eastern Sabah (East Malaysia) as the most divergent subspecies. Its western neighbor, Everett’s grizzled surili, P. h. everetti (Thomas, 1893) is unique to the genus in being sexually dichromatic. The bandanna-like white tract of hair across the forehead of juveniles and male adults is reduced to a white spot in female adults. In the south-eastern subspecies, Miller’s grizzled surili (P. h. canicrus), all adults and juveniles much resemble adult female P. h. everetti, but have no frontal white spot. P. h. canicrus is known only from the north-east Indonesian part of Borneo as far south as the KutaiNational P…

The Most Endangered Primates in Indonesia

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The Most Endangered Primates in Indonesia
Adapted from: Primates in Peril, the World’s 25 Most Endangered Primates 2004–2006, (Mittermeier, et.al , 2005)
1. Miller’s Grizzled Surili (Presbytis hosei canicrus Miller, 1934)
2. Pagai Pig-tailed Snub-nosed Monkey or Simakobu (Simias concolor Miller, 1903)
3. Sumatran Orangutan (Pongo abelii Lesson, 1827) References:

Russell A. Mittermeier, Cláudio Valladares-Pádua, Anthony B. Rylands,
Ardith A. Eudey, Thomas M. Butynski, Jörg U. Ganzhorn, Rebecca Kormos,
John M. Aguiar & Sally Walker. 2005 .PRIMATES IN PERIL The World’s 25 Most Endangered Primates 2004 – 2006, IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS),Conservation International (CI)

Supriatna J., Wahyono, E.H. 2000. Panduan Lapangan Primata Indonesia. Yayasan,Obor Indonesia. Jakarta.

Ilustration:
1. Interactive CD “Primata Indonesia” published by CI Indonesia,2003

“Susahnya menangkap monyet liar di hutan gunung slamet

“Susahnya menangkap monyet liar di hutan gunung slamet – Sebuah pengalaman fotografi satwaliar“Foto atau gambar dapat mengungkapkan apa yang tidak dapat di tuliskan oleh kata-kata. Ribuan kata dapat terwakili dengan adanya sebuah foto, dan hal ini akan sangat bernilai dalam upaya konservasi satwaliar. Pengalaman ini di tulis oleh sahabat dan patner saya selama “berburu“ monyet-monyet pemakan daun di Jantung pulau jawa. Satuhal yang dapat di simpulkan dari pengalaman ini adalah, pemahaman dan pengetahuan akan ekologi perilaku satwa, akan sangat berguna dalam menghasilkan foto-foto yang berkualitas, selain penguasaan teknik fotografi di alam., SEMOGA ADA MANFAATNYA....Dokumentasi adalah kegiatan merekam suatu obyek atau peristiwa / kejadian secara nyata dengan menggunakan beberapa alat untuk tujuan tertentu. Dalam sebuah penelitian tentunya memiliki tujuan dasar dokumentasi yaitu, sebagai pendataan (data base) secara nyata dengan visual dua dimensi dan hasil dokumentasi baik berupa foto…

Carnivorous plants in the heart of Java

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I found these Nepenthes in the South and Eastern slope of Mt.Slamet, Central Java, Indonesia, during research on endemic primates in there. Kantong semar is the vernacular name of Nepenthes in Mt.Slamet. I have one of the transects that I called “Jalur Kantong Semar”, because I found so many Nepenthes in this area. Nevertheless, the nepenthes are has been facing to get vanish in Mt.slamet, massive hunting on this carnivorous plants are problem that affect on to Mt.Slamet biodiversity.

A pace to save the heart of Java

a pace to save the heart of Java through species conservation, download here for 2005-2006 activities.

“Rangefinder-Pengukur jarak digital”

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Pada tulisan terdahulu, saya pernah menulis tentang senjata ampuh tanpa tanding yakni “Binocular”, pada kesempatan ini saya akan senjata yang lain lagi yang saya gunakan dalam penelitian primata di Gunung Slamet Jawa Tengah-“Jantung Pulau Jawa”. Sejata ini juga masih termasuk alat optic juga, masih ada prinsip prinsip kerja binokuler dalam alat ini. Saat ini, penggunaan teknologi terbaru dan canggih memang sangat membantu dalam penelitian satwaliar dan managementnya. Penggunaan alat memang sangat diterkait dengan metode yang akan digunakan untuk mencapai tujuan dalam suatu penelitian. 3 tahun terakhir ini, penelitian di gunung Slamet masih terkait dengan estimasi populasi Rekrekan yang ada disana. Penelitian ini menggunakan metode “line transect” . Untuk metode penelitian munkin akan kita bahas tersendiri nanti. Beberapa metode analisis data yang sering digunakan dalam line transek adalah jarak antara pengamat dengan satwa (Observer to animal distance) atau jarak tegak lurus antara jal…