HOPE Report No.24, 26th, March 2005.
Program No.24 (Joint research)
Ecological and sociological study of wild bonobos in Wamba, DR Congo
Yasuko Tashiro Research associates Primate Research Institute, Kyoto
Period of visit: 8 January, 2005 － 8 March, 2005
Places of visit: Kinshasa and Wamba, Democratic Republic of Congo
The research of wild bonobos in Wamba was started 1970's. After the
interruption by the civil war, the research was reopened in
2003. Previous study in 2004 revealed that the main study group still
inhabits in Wamba. However, the detailed data of inter-individual
relationships and their habitat use have not been collected.
I met Dr. Mwanza Ndunda, director of CREF (Centre de Recherche en
Ecologie et Foresterie), and discussed about the cooperative research of
bonobos in Wamba. We discussed about the method of data collection and
data analysis to develop the field research.
I stayed in Wamba from 19th January to 28th March, 2005. I followed the
main study group (E1-group) with local research assistants, and recorded
ecological and sociological data of wild bonobos. I identified two females
and their children, that were not observed in previous study period.
In 1996, we identified all children of E1-group, and understood
inter-individual relationships. Young females were supposed to emigrate to
other groups. Young males might stay in their natal group (E1), but it was
difficult to recognize which individual survive. So, I collected fecal
samples of all members of E1-group. I will analyze these samples to
compare the mitochondrial DNA sequences between mothers and young males to
know their relationships.
I followed E2-group, which is another study group in Wamba, and
observed three known individuals. It was confirmed that E2 group changed
their home range greatly. Field tracks of P-group were observed. I could
not find any signs of other groups of bonobos around the Wamba forest.
Eating Diarium zenkeri