By Jill Pruetz | Director, Fongoli Savanna Chimpanzee Project
On a trip to the Fongoli Savanna Chimpanzee Project (FSCP) field site in Senegal, we were able to witness the Fongoli community of chimpanzees expanding their home range in what appears to be a response to human pressure from the opposite side of the range.
Since the gold mining boom really took off in 2009, the Fongoli chimpanzee community has lost access to some of their eastern home range, where artisinal gold mines as well as the expansion of the town of Kedougou puts these chimps in close contact to more and more people. The Fongoli chimps have used what we call the Potchokon area less and less and in December 2024, we recorded them moving into the neighboring chimpanzee community's home range - the Bantan chimp group - where they stayed for about 3 weeks.
Lead FSCP researcher, Michel Sadiakho, was with a large subgroup of the Fongoli chimps when they snuck up on the Bantan group and had a physical battle with them. After that, the Fongoli chimps pushed farther and farther into Bantan's home range, traplining baobab trees for fruit, which is their main food resource during the early dry season. While I always anticipated this, I didn't expect it to happen so soon. We believe the Bantan chimp group is smaller and will likely continue to be displaced. A question is, where will they go? We plan on continuing to monitor the Bantan group via nest surveys and genetic sampling from droppings in order to try and understand how the pressure from the Fongoli chimps as well as the existence of a very large gold mine at the other side of their range will ultimately effect them.
One development we also saw in late 2024, was the activity of eco-ranger patrols. Eco-rangers come from each village in the Tomboronkoto District, and they patrol the area looking for illegal activities, such as charcoal making and tree cutting. They have made significant strides in helping to preserve the natural resources in this area, which benefits local people as well as chimps and other wildlife.
Thank you for all your support of our varied projects devoted to conserving chimpanzees in southeastern Senegal and providing for the wellbeing of the people that live alongside them. We truly could not do it without you!
By Dr. Jill Pruetz | Director and Project Leader
By Dr. Jill Pruetz | Director and Project Leader
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