With just 53 Cat Ba langurs in the wild and two in captivity at the Endangered Primate Rescue Centre of Cuc Phuong National Park, the Cat Ba Langur Conservation Project was started in 2000 by Munster Zoo and the Zoological Society for the Conservation of Species and Populations (ZGAP). Given the cause of the langur's decline, the main aim of the project was to halt poaching, with the additional intention of promoting conservation awareness amongst the inhabitants of Cat Ba Island. The project has been extremely successful in dramatically reducing deaths as a result of poaching, bringing the number from 30 deaths in the eight months prior to its start, to three deaths in the first four years of the project. In this time nine langurs were born and have survived. The langurs are closely monitored and protection measures are in place, particularly in the newly created langur sanctuary within the National Park. This highly protected area is home to 20 individuals from a large, reproducing group, which are protected by a rotation of 20 rangers – an incredible ratio of one ranger to one langur. The sanctuary is visibly marked around its circumference and is inaccessible to tourists. The Cat Ba Langur Conservation Project has constructed two new ranger stations, provided boats to ease patrols and has even seen the voluntary relocation of several local, floating households to support the rangers (3). The Cat Ba langur also has the support of Flora and Fauna International's Flagship Species Fund (5) and the Cat Hai District Women's Union, who implemented a project entitled 'Contributing to Biodiversity Conservation in Cat Ba National Park through Community Activity' (7). Following the finding of a decline in the white-headed black langur in China, efforts were made to conserve this subspecies. With funding from the Asian Development Bank, a survey in January 2003 showed evidence of some recovery in the Fusui populations (5), and numbers in Chongzuo have seen a rise from less than 100 to more than 200 individuals since Professor Pan Wenshi of Peking University began a research program in 1996 that concentrated on the subspecies (5). Tourism has become central to economy of both Vietnam and China, and now must be controlled to prevent the disturbance of recovering habitats and species in the Conservation International's Indo-Burmese Biodiversity Hotspot (7).
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