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TSOS | The Sense of Silence Foundation

Key species for humankind

African great apes serve as evolutionary models for an array of traits which might have characterized our last common ancestor and early humans. Furthermore, apes are considered keystone species to local biodiversity. Therefore, their disappearance would cause permanent damage to local ecosystems, and also impede the understanding of our evolutionary origins. It is crucial to conserve the last remaining wild populations.

Gorillas
Chimpanzés
3000
Great apes lost every year in Africa
90%
of their habitat will be damaged by 2030

The primates of Africa face a multitude of critical threats

They are conservation flagships: yet all four species - bonobos, chimpanzees, eastern and western gorillas - are threatened by habitat loss, bushmeat hunting, and illegal wildlife trade. During the past 30 years, there have been alarming declines in great ape populations: human population densities, hunting, logging and mining activities are now rapidly increasing, destroying ape habitat in their wake.

The bushmeat trade, the illegal and unsustainable hunting, buying, and selling of wildlife for meat, is common in many areas of Africa.
70%
of the gorilla population gone in the past 20 years
As humans expand into and encroach upon wild habitats, primates are caught in the crosshairs.
The expansion of oil palm is a major factor in deforestation in Africa.

Each Node allows the real-time tracking and conservation of one habitat of great apes

The Sense of Silence Foundation has joined forces with the Pan African Sanctuary Alliance (PASA) to preserve the natural habitats of these primates. Our program aims at installing a network of acoustic observatories covering the entire areas of the 27 African sanctuaries, offering a unique solution to protect great apes by continuously monitoring their population, thus contributing to preserve the African biodiversity. PASA is the largest association of wildlife sanctuaries in Africa, with 23 members in 13 countries, securing a future for Africa’s apes.

27
African sanctuaries
13
Countries
540
Nodes
A Node deployed
Our team mounting the Nodes

This initiative is supported by: