Chimpanzees are classified as Endangered by the International Union for Conservation of Nature (IUCN), with some populations classified as Critically Endangered. Numbers have fallen sharply over the past century, from an estimated one million individuals across Africa in 1900 to roughly 170,000–300,000 today. The causes aren't a single dramatic event — they're a set of compounding, everyday pressures.
This is the single biggest threat. As agriculture, logging, and settlement expand across chimpanzee range countries, forest is cleared and what remains is broken into smaller, disconnected fragments. In Western Uganda, where the Bulindi Chimpanzee & Community Project works, wild chimpanzees now survive in exactly this kind of patchwork — remnant forest islands surrounded by farmland, with communities forced to travel between fragments to find enough food and mates.
As forest shrinks, chimpanzees and farming communities are pushed into closer contact, and often direct competition, over the same land. Chimpanzees may raid crops when natural food is scarce, which damages farmers' livelihoods and can escalate into retaliatory harm toward the chimps. This conflict is a two-sided problem — it threatens chimpanzee survival and threatens the livelihoods of the people living alongside them, which is why effective conservation has to address both sides at once.
Because chimpanzees are so genetically close to humans, they're vulnerable to many of the same respiratory illnesses. As chimpanzee habitat increasingly overlaps with human settlement, the risk of disease transmission — in either direction — rises. A single respiratory outbreak can be devastating to a small, already fragmented chimpanzee community.
Chimpanzees are rarely the deliberate target of hunters in most regions, but they are frequently caught and injured or killed by snares set for other bushmeat species. Infant chimpanzees are also sometimes captured for the illegal pet trade, an act that typically involves killing the mother.
As roads and other infrastructure are built through or near remaining forest, chimpanzees face new physical dangers. A multi-year study of the Bulindi chimpanzee community, using video-recorded road crossings, documented the specific behavioural strategies these chimps use to reduce collision risk crossing a busy road through their territory — and found that some individuals, especially males, are becoming more tolerant of that danger as traffic increases, a genuinely worrying trend.
Estimates vary by region and survey method, but the total wild population across Africa is generally put at somewhere between 170,000 and 300,000 individuals — down from an estimated one million a century ago. Some subspecies are faring far worse than others: the Nigeria-Cameroon and Western chimpanzee subspecies are considered Critically Endangered, with the Western chimpanzee population having declined by an estimated 80% over the past few decades. Populations in fragmented, human-dominated landscapes like Western Uganda's forest patches are typically small and isolated by definition, making them especially vulnerable to any single shock — a disease outbreak, a bad snaring season, or a sudden loss of remaining forest.
None of these threats has a single, simple fix, which is why effective chimpanzee conservation tends to work on several fronts simultaneously:
This is the model the Bulindi Chimpanzee & Community Project runs in Western Uganda — conservation and community development treated as one problem, not two. It's slower and less dramatic than a single big intervention, but it's the approach that actually holds up over years, in a landscape where chimpanzees and people are never going to be fully separated from each other again.
Large-scale threats like habitat loss can feel too big for an individual to affect, but funding for organisations working directly on the ground — running forest enrichment programmes, supporting local livelihoods, and monitoring specific chimpanzee communities day to day — has a direct, measurable effect at the local level where these threats actually play out. Even modest, recurring donations add up over a year into the kind of stable funding that lets a field team keep monitoring a chimpanzee community daily rather than scaling back to occasional visits. Consistency, more than any single large gift, is what field conservation programmes rely on most to plan and sustain their work year after year.
You can help sustain this work by supporting the Bulindi Chimpanzee & Community Project.