AMERICAN ZOO AND AQUARIUM ASSOCIATION Species Survival Plan Taxon Advisory Group Fauna Interest Group Scientific Advisory Group
TO: Anne Zimmerman, Director San Gabriel Zoo San Gabriel, New Mexico FROM: Barry Grady, Coordinator Sumatran Tiger Species Survival Plan Association of Zoos and Aquariums RE: Breeding plans for Sumatran tiger

The numbers look good on a Jambi-Sasha mating. If two cubs were born, the net change in gene diversity for all of captive Sumatran tigers would increase by 0.10%, rising from 91.41 (that is, 91.41% of the original gene diversity still retained) to 91.51. And because Sasha comes from Dallas--a nearby,warm-weather zoo--she would suffer few ill effects from the transfer and probably breed successfully.

While other females might produce a higher gene diversity, our management group agrees that Sasha is the best choice. We recommend Sasha's transfer from Dallas to San Gabriel as soon as possible, so breeding can begin.

Good work!