Gorilla Journal 32, June 2006

The Silverback Mugaruka

Nowadays park activities are not limited to community conservation - they also and especially include activities for the protection of the gorillas. In this article, we would like to report on one silverback whose life has already made history.
Those who have the chance to visit the Kahuzi-Biega National Park will recognize the silverback Mugaruka by his missing right hand. Born in 1987, into the Mushamuka family, he got his hand caught in a snare in 1991. He carried the snare around with him until his hand withered and fell off. In 1997, the male Nindja left the group peacefully (i.e. without interaction) taking with him 4 females, one of which was Mugaruka's mother.
On October 30th, 1997, Nindja was killed near Kakala by a Rwandan soldier who had stayed in the Tshivanga guard post the previous night. The surviving gorillas re-grouped under the lead of a female called Mugoli (which means "queen") because Mugaruka was not yet old enough to lead the family.
In 1999, Mugoli conceded power to Mugaruka even though he was still a blackback male. In the same year, his family started to tolerate the presence of human visitors. Several representatives and actors from international television channels have visited the family since.
During the period from 2000 to 2004, the peace and quiet of the Mugaruka family was disturbed, when the silverback male Chimanuka attacked Mugaruka several times. During these skirmishes, Mugaruka lost several members of his family. On May 9th, 2000, 2 of Mugaruka's females decided to stay with Chimanuka. On October 21st, 2002, all his remaining females transferred to Chimanuka, except for Lushasha, the mother of the young Chubaka. On January 7th, 2004, Chimanuka returned and left with this last female, too.
For a while, Mugaruka lived alone with his son Chubaka. On May 19th, 2004, he succeeded in taking over the surviving Mishebere family and in forming a new group of 10 individuals.
On July 17th 2005, Mugaruka separated himself from all his new females and Chubaka. For reasons yet unknown he became solitary.
On January 20th, 2006, Mugaruka interacted with a group of females who had been abandoned in July 2005 and who were led by a blackback male called Mankoto. Very curiously, this interaction was entirely peaceful: Mankoto submitted himself to Mugaruka's dominance.
The reader might wonder how we succeed in collecting a family history like that of Mugaruka. As mentioned above, the work of park staff is not limited to development activities, but also includes surveillance of the gorillas. Our guides and trackers follow these gorillas every single day. An identification kit based on nose-prints (diagrams of the distinctive shape of each gorilla's nose) has been developed to help recognize individuals.
This daily work can be conducted only if security within the park is guaranteed. For this reason we appeal to everybody concerned (i.e. donors and decision-makers, both political-administrative and military) to contribute to the restoration of peace in general, and within the park in particular - each according to their means and abilities. This will help to guarantee the protection of the Kahuzi-Biega National Park.

Robert Mulimbi

Latest news of Mugaruka: occasionally he joins his old family led by the blackback male Mankoto, who seems to become stronger and stronger. At times the group splits, leaving Mugaruka and Mankoto each leading some of the females, whilst at other times they live peacefully in one big group or Mugaruka ranges on his own.
We all wait to see how the situation will develop when Mankoto will grow up to a silverback; most probably he will defend his own group and not tolerate Mugaruka in the same family.

Article by David Jay and John Kahekwa

Robert Mulimbi is the chef de guides for the ranger teams who lead tourists to the gorillas in the Kahuzi-Biega National Park.
 

Kahuzi-Biega overview

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