Mahale Mountains,

An agroforestry project entirely funded by 


hectares over 5 years (target)


million trees growing (target)

0 +

species planted through agroforestry


villages benefiting


mammal species identified

The Greater Mahale Ecosystem is home to one of the largest remaining populations of eastern chimpanzees, and is the only known place where chimpanzees and lions coexist. However, it is also an area where rising populations, poverty, and dependence on unsustainable use of natural resources is driving deforestation and forest degradation. 

This project aims to deliver positive impacts for people and nature by introducing agroforestry systems that provide local people with vital timber and non-timber forest products, reduce pressure on natural forests, and help prevent forest fragmentation.

Why and how we’re working here

Severe deforestation and degradation has resulted in fragmented forest patches, loss of habitat for wildlife including chimpanzees, and massive soil erosion which pollutes Lake Tanganyika and causes sedimentation of fish breeding sites.

Working with 5000 smallholder farmers on 2500 hectares of land, the project will support the development of agroforestry systems with three core benefits: 

  • Improve on-farm species diversity, overall tree cover and soil quality 
  • Reduce deforestation pressures on natural forests
  • Improve household income generating opportunities and nutrition


The aim is for 5000 farmers to be trained in agroforestry practices and provided with agroforestry seedlings over 5 years, and as  the average household size in Tanzania is 4.6, the project will directly reach around 23 000 people.


Greater Mahale Ecosystem, Tanzania

Restoration approaches

Agroforestry on smallholder farms and riverbanks

restoration partners

Friends of Lake Tanganyika (FOLT)

16+ species to be planted through agroforestry approaches


Eastern chimpanzees, yellow baboon, Angolan colobus

The project’s impact on people and nature

Smallholder farms in the 15 focus villages will receive training on sustainable agricultural land management practices, primarily agroforestry, and access to agroforestry tree seedlings. Environmental education will promote behaviour change that protects wildlife and their habitats while strengthening sustainable livelihoods.

Explore the interactive map

Who’s funding the Mahale Mountains project?

Updates from our Special Projects

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