African forest elephants of Bwindi: the hidden giants of the impenetrable forest

Bwindi Impenetrable National Park is home to a population of African forest elephants (Loxodonta cyclotis) — classified as a species distinct from the African savannah elephant since 2010, and assessed as Critically Endangered by the IUCN in 2021, making them both ecologically distinct and more urgently threatened than the savannah elephants most safari visitors encounter in open grassland parks. Bwindi’s forest elephants are almost never seen by gorilla trekking visitors — their detection during a guided trek comes primarily from tracks, dung, bark-stripped trees, and the experience of a ranger guide stopping silently and raising a hand while the whole forest seems to hold its breath. Their presence is nonetheless ecologically critical: forest elephants are the architects of the trails through Bwindi that gorillas and humans both use. See Uganda safari packages.

Most visitors to Bwindi come for the gorillas and leave thinking the forest is primarily a primate habitat. But Bwindi Impenetrable National Park is home to one of Africa’s most elusive and poorly understood large mammals: the African forest elephant. Smaller than its savannah cousin, adapted to life in dense equatorial forest, and largely invisible to the casual observer, the forest elephant is the great unsung animal of Bwindi—present throughout the park, ecologically crucial, and encountered by only the luckiest of trekkers.

Forest elephant vs savannah elephant: what’s the difference?

For most of the twentieth century, the African forest elephant was classified as a subspecies of the African elephant—Loxodonta africana cyclotis versus the savannah elephant Loxodonta africana africana. Genetic studies published in 2001 and 2010 demonstrated that forest and savannah elephants are in fact entirely separate species, having diverged approximately 2.6 to 5.6 million years ago—a divergence time greater than that between Asian elephants and woolly mammoths. The forest elephant (Loxodonta cyclotis) is significantly smaller than the savannah elephant: adults stand about 2.2 to 2.5 metres at the shoulder rather than 3.2 to 4 metres, and weigh 1.75 to 2.75 tonnes versus the savannah elephant’s 4 to 7 tonnes. Their tusks are straighter and more downward-pointing—adapted for navigation through dense forest rather than the digging and bark-stripping common among savannah elephants. Their ears are smaller and more rounded, their skin darker, and their feet wider relative to body size, adapted for the soft, wet soils of the forest floor.

Forest elephants in Bwindi: what do they eat?

Bwindi’s forest elephants are primarily browsers—feeding on leaves, bark, fruit, and the soft pith of forest plants rather than the grasses that dominate savannah elephant diets. They are particularly attracted to specific forest fruits when available, moving significant distances to access seasonal fruiting events. Camera trap data from Bwindi and similar Albertine Rift forests show forest elephants consuming over 300 plant species, including many that are keystone resources for other forest animals. Their dietary breadth makes them important seed dispersers: seeds consumed and passed through the digestive system of an elephant are often scarified (the outer coating broken down) in ways that improve germination rates, and they are deposited in dung piles that provide a nutrient-rich germination bed. Some tree species in Bwindi depend on elephant gut-passage for their seeds to germinate—a relationship that has evolved over millions of years and that could be disrupted by elephant extirpation from the forest.

The forest elephant’s ecological role: creating clearings

Forest elephants are sometimes called “ecosystem engineers”—a term ecologists use for species that physically modify their habitat in ways that benefit other species. In Bwindi, elephants push over trees, strip bark, and create gaps in the canopy that allow light to reach the forest floor, stimulating the growth of understory plants that provide food for gorillas, buffalo, bushbuck, and a host of smaller animals. They also excavate mineral licks—areas where they dig for sodium and other mineral salts—that attract multiple species. Their trails through the dense undergrowth create pathways used by other animals and, occasionally, by gorilla trekking groups whose guides know that the easiest route through impenetrable vegetation is sometimes a path that an elephant has already broken.

Encounters with elephants on trek

Encountering an elephant in the forest is simultaneously one of the most exhilarating and one of the most dangerous situations a gorilla trekker can face. Unlike the open savannah where elephants are visible at distance and their movements are predictable, in dense forest an elephant can be hidden by vegetation at ten metres and can cover that distance in under two seconds. Rangers in Bwindi are trained in elephant encounter protocols and carry warning flares (not firearms) for deterrent purposes. If an elephant is encountered on the trail, the ranger will calmly redirect the group to a different route—the encounter may be brief and exciting or may require a significant detour. The key safety guidance: follow the ranger’s instructions exactly and immediately, avoid sudden movement or noise, and do not attempt to photograph the elephant from close range. The animals are generally wary of humans rather than aggressive, but a female with a calf or a male in musth is unpredictable.

Conservation status and threats

The African forest elephant is classified as Critically Endangered on the IUCN Red List—a status reflecting population declines of more than 86% over the last 31 years, driven primarily by ivory poaching and habitat loss. Forest elephants are particularly vulnerable to poaching because they live in dense, remote forest that is difficult to patrol and easy for poachers to operate in unseen. Their slow reproductive rate (one calf every 5 to 6 years, compared to the savannah elephant’s 4 years) means populations recover slowly from hunting pressure. In Bwindi, the elephant population is small—estimated at a few dozen individuals—and relies on the park’s protection for its survival. Anti-poaching patrols funded by gorilla permit revenue contribute directly to the protection of this population along with the gorillas.

Human-elephant conflict at the park boundary

Like the gorillas, Bwindi’s forest elephants do not observe the park boundary. They move seasonally into community agricultural land, raiding crop fields—particularly banana plantations—and causing significant economic damage to farming families whose livelihoods depend on those crops. Human-elephant conflict is one of the most serious conservation challenges at Bwindi, creating resentment toward the park and toward elephants specifically. Mitigation measures include beehive fences (elephants avoid bees; a strand of beehive fences along a field boundary deters encroachment effectively and has the added benefit of producing honey that families can sell), chilli pepper plots planted at field edges (elephants dislike the capsaicin irritant), and community compensation schemes for verified crop damage. These programmes are underfunded relative to the need but are producing measurable results in the communities that implement them.

Tracking forest elephants: signs to look for on trek

Even if you do not see a forest elephant on trek, you will almost certainly see their signs—and learning to read them transforms the trail from a route to the gorillas into a story of the forest’s recent history. Fresh elephant dung is the clearest sign—large, fibrous, grass-and-leaf filled, often warm. Pushed-over saplings and broken branches indicate elephant feeding activity. Debarked tree trunks—smooth stripped patches of pale wood surrounded by bark fragments on the ground—show where elephants have extracted nutrients from inner bark. Muddy wallows and stream banks show characteristic large round footprints and the drag marks of a heavy animal entering and leaving. The ranger guide will point these signs out; paying attention to them deepens your understanding of what the forest contains and how it works as an ecosystem.

Why forest elephants matter for Bwindi’s future

If the forest elephant disappears from Bwindi—through poaching, conflict killing, or slow attrition as the population fails to reproduce—the forest will change in ways that take decades to become visible. The clearings elephants create will close over. The tree species that depend on elephant gut-dispersal will fail to regenerate. The mineral licks that sustain multiple species will be unused and gradually reclaimed by vegetation. The forest will become denser, more homogeneous, and less productive for the other species it supports, including the mountain gorillas whose future is the reason most visitors come. Protecting Bwindi is not about protecting one species—it is about protecting an ecosystem where every species depends on every other, and where the removal of even a single giant reverberates through everything that remains.