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| Traylor-Holzer, K. | |
| Analysis of the Regional and Global Captive Populations of Sumatran Tigers _(Panthera tigris sumatrae)_ - 1999 | |
| 1999 Full Book | |
The purpose of this analysis is to assess the current status of the captive Sumatran tiger population and to determine the importance of the PKBSI tiger population to the management of the other regional programs and to the global captive population. The goal of retaining 90% gene diversity for 100 years, as recommended in the Tiger GCS, will be used as a benchmark, although the projections will allow for alternate program goals. Several scenarios will be investigated, including: a) no further importation of tiger founders from Indonesia; b) limited importation of tigers from Indonesia; and c) frequent importation from Indonesia. The following objectives will be addressed in this analysis: 1. To assess the current genetic status of: a. Each regional program (ASMP, SSP, EEP, and PKBSI) b. Sumatran tiger population outside of Indonesia (ASMP, SSP and EEP collectively) c. Global tiger population (all four regional programs combined) 2. To predict the retention of gene diversity in the various populations above given current management strategies and with various levels of immigration of new genetic founders. The results of the analyses in Objective 1 will guide the parameter values to be used in these projections, and various management scenarios (including incorporation of new founders) will be evaluated to determine the effects on the retention of gene diversity in these captive populations. 3. To identify individual tigers as potential candidates for transfer among regional programs and evaluate the effects of such transfers on both the donor and recipient populations. This analysis will identify tigers whose transfer will produce the greatest immediate benefit on the receiving population with minimal detrimental effect on the donating population. This will include an evaluation of the value of the currently available captive-born tigers in Indonesia. The results of these analyses should provide a sense of the status of each subset of the global population, how each is likely to succeed (in terms of retention of gene diversity) with and without transfer of animals, and which tigers might be the best candidates for possible transfer in the immediate future. |
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