EAZA Yearbook 2007/2008

Golden-headed lion tamarin
EEP Annual Report 2007 - 2008
* Non-EAZA Institutions 5.5.0 0.2.0 (0.0.0) 0.0.0 0.0.0 0.0.0 0.0.0 1.1.0 4.6.0
Discrepancy notes
Golden-headed lion tamarin
Leontopithecus chrysomelas
Summary
Notes
ASCHERSLEBEN_NE The status on 1 January 2007 is 0.3.0 instead of 0.4.0 as listed on 31 December 2006.
KOLN The status on 1 January 2007 is 1.0.0 instead of 1.1.0 as listed on 31 December 2006.
At the end of 2008 there were 229 (118.106.5) animals in the EEP population (47 institutions, including Tenerife Zoo). The European population is
slightly above target population size and the growth was 5% in 2008. 96% of the genetic diversity is still retained in this population founded by 43
individuals (MK= 0.034). In 2008 a new Loan Agreement was provided by ICMBio but no new members have been officially approved yet.
During 2007, one new institution was added (Schmiding) and Newchurch received new animals. At the end of 2007 there were 218 (108.93.17)
animals in the EEP population (45 institutions). 97% of the genetic diversity is still retained in this population (MK= 0.032). The European population
has gone down a bit the past years but is now back at target population size.
The goal for the golden-headed lion tamarin captive population is to keep a stable population size on a world scale. For this, intensive management
of the number of breeding pairs at any one time is necessary.
Neither of the present subpopulations can by themselves retain 90% gene diversity for 100 years. This is in itself not a problem as the goals stated
during the 1997 PHVA are for the world population as a whole. However, as some Brazilian institutions are struggling with too many GHLTs and as
more input of confiscated wild GHLTs is expected, we do have the potential to also improve the genetic status of the larger subpopulations and
create space in Brazil for some of the confiscated GHLTs. It would be recommended to:
- import some GHLTs into Asia from North America and/or Brazil
- import some GHLTs into North America from Europe and/or Brazil
- import some GHLTs into Europe from Brazil
Bringing in 2 founders every 20 years would have a significant effect on the genetic status of the subpopulations. These founders can enter the
populations in the form of descendants from founders already represented in one subpopulation but not yet in another subpopulation. If the space
problem in Brazil is/becomes acute there is also the potential to start a small subpopulation in South Africa where there are interested institutions.
There are already GLTs in this region also.
EEP