Surili

Abstract: The current terminology for the colobine monkeys of Java is incorrect. The appropriate term for the West Javan surili is Presbytis comataDesmarest,1822, and that for the Javan and Bali/Lombok lutung is Trachypithecus auratusE. Geoffroy St. Hilaire, 1812.

Abstract: The grey-backed langurs Presbytis hosei sensu lato are little-known colobines from northern Borneo. Comprising one, two or possibly three distinct species, the attention these taxa have received from conservationists or from the primatological community is limited. Some people may be familiar with the species from Leo Berenstain’s “The Wind Monkey and other stories” published in 1994, in which P. (h.) canicrus is the wind monkey referred to in the title. This same taxon gained some fame when it was included as Miller’s Grizzled Surili on the 2004-2006 “Top 25 Most Endangered Primates” (Brandon-Jones 2005). While Brandon-Jones (2005) indicated that the species was known only from the north-east Indonesian part of Borneo, the sorry state of the forest in Kutai National Park, the only protected area of its recorded range, led him to suggest that P. (h.) canicrus was probably Critically Endangered or even Extinct. Reflecting the lack of attention to the species, he did indicate that no surveys had been undertaken. Apart from Indonesia - P. (h). hosei, P. (h.) canicrus and possibly P. (h.) sabana- grey-backed langurs occur in the Malaysian State of Sarawak and the Brunei Sultanate - P. (h.) hosei- and in the Malaysian State of Sabah - P. (h). hosei and P. (h.) sabana.

Abstract: Miller's grizzled surili, Presbytis hosei canicrus, is the rarest of the four hosei subspecies, all endemic to the island of Borneo. From 5 March to 6 April 2008, we carried out a survey to examine the status of this monkey in the eastern part of Borneo, most particularly in Kutai National Park. We were unable to find any evidence for the continued existence of Presbytis hosei in the park. We were able to locate just one group occupying the riverbank habitat of Baai River, isolated by oil palm plantations in the District of Karangan, East Kalimantan. Forest fires, particularly in 1997–1998, and hunting for food and for their bezoar stones are probably the main causes of the probable extirpation of P. hosei in the Kutai National Park. Forest loss due to extensive oil palm plantations is the main threat to this species in the areas of Sangkulirang and Karangan.

Abstract: Java has been experiencing deforestation due to high population pressure. A lot of natural forests which play an important role as wildlife habitat are loss. The remaining natural forest distribute in mountainous areas in the form natural conservation area, meanwhile the others have been converted into settlement andinfrastructure, food crops, cash crops plantation, estate and private forest plantation. Javan langur (Presbytiscomata) is an endemic species of Java and used to utilize natural forest as their habitat. However, in a recent observation the species isfound inside plantation forest in Kuningan district, West Java. This is a unique finding, due to the fact that a plantation forest is not suitable habitat for Javan langur. The research is aimed to develop Habitat Suitability for this species based on physical, biological and human disturbance factors. Data on Javan langur presence and its habitat component were derived from field observation and secondary data/map. Result showed HSI could be developed based on 4 PC and showed that the study area mostly is occupied by low HIS Index or not suitable area for surili.