REPUBLIKA.CO.ID, MALANG -- The Java Langur Center (JLC) in Batu, East Java recorded a decline population of Javan langur (Trachypithecus auratus) in the last 36 years. The population of Javan lutung in its natural habitat also decreased due to poaching activities, decreasing habitat quality, as well as illegal trading.

"In 1999, Javan langur species is in category of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) because of its critical population," JLC Project Manager, Iwan Kurniawan said on Tuesday.

JLC released a group of Javan langur to the forests recently, consisted of one male and three females to prevent the extinction of the species. The four monkeys have been quarantined previously at Gunung Biru, Batu. The male is called Bobby, while the three females are Rose, Linseed and Diamond from England.

"Javan langur is arboreal animal, which is actively on tree. Majority of them live in groups between 6-23 monkeys," Kurniawan said.

JLC has released 73 Javan langurs for five times in a number of locations, such as Bromo Tengger Semeru National Park and Forest Park Conservation Area of R Soerjo in Batu. The monitoring result recorded that the monkeys could survive and breed well.

Javan langur is one of endemic primates from Java. Therefore, public should help to preserve the sustainability and did not buy the animal from any resource.

In online shop, Javan langur is usually offered at a price of 500,000 IDR and it can be more expensive up to 1.5 million IDR under the age of one month.

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