European StudBook (ESB)
The Jerusalem Biblical Zoo is a member of the European Association of Zoos and Aquaria (EAZA). Animals kept in member zoos are subject to population management programs which aim to conserve healthy populations of animals in captivity as well as to protect genetic diversity. These programs provide a future for some of the world’s most vulnerable species.
There are two levels of breeding program within EAZA. The ESB (European StudBook) is less intensive than the EEP programme. The studbook keeper who is responsible for a certain ESB collects all the data on births, deaths, transfers, etc., from all the EAZA zoos and aquariums that keep the species in question. These data are entered in special computer software program, which allow the studbook keeper to carry out analyses of the population of that species. EAZA zoos may ask the studbook keepers for recommendations on breeding or transfers. By collecting and analyzing all the relevant information on the species, the studbook keeper can judge if it is doing well in EAZA zoos and aquariums, or if maybe a more rigid management is needed to maintain a healthy population over the long term. In that case, the studbook keeper may propose that the species be managed as an EEP programme.