Study

Translocation and introduction of the Zanzibar red colobus monkey: success and failure with an endangered island endemic

  • Published source details Struhsaker T.T. & Siex K.S. (1998) Translocation and introduction of the Zanzibar red colobus monkey: success and failure with an endangered island endemic. Oryx, 32, 277-284.

Actions

This study is summarised as evidence for the following.

Action Category

Translocate (capture & release) wild primates from development sites to natural habitat elsewhere

Action Link
Primate Conservation
  1. Translocate (capture & release) wild primates from development sites to natural habitat elsewhere

    A before-and-after trial in 1977-1996 in mixed tropical forest in Masingini Forest Reserve on Unguja Island, Tanzania found that groups of Zanzibar red colobus monkeys Procolobus kirkii survived translocation from an unprotected area to protected areas. Twenty-one of 23 translocated monkeys survived the three translocation events in 1977-1978. In 1981, 13 colobus monkeys were translocated into the Zanzibar Forest Reserve. A census in 1994 revealed the presence of 56-64 colobus monkeys, meanings a population increase of 56-78%. However, no statistical tests were carried out to determine whether this increase was significant. Monkeys were caught in nets and by hand while sleeping and were transferred directly to the release site. Surveys were conducted on eight partial days in 1991, 1994, 1995 and 1996. During another translocation of 13 colobus monkeys in 1978 to Kichwele Forest Reserve, two individuals died during the process and no surveys were conducted post-release.

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