Why Bison May Hold the Future of Britain’s Forests

Britain is now officially one of the most nature-depleted countries on Earth, with more than one in six species at risk of extinction . That statistic is no longer abstract. It is visible in the thinning of woodlands, the silence of once-familiar birds and the steady simplification of ecosystems that once functioned without human intervention.

Against that backdrop, an unlikely animal is re-entering the conversation. The European bison, or zubr, is not just a conservation success story – it is increasingly seen as a living ecological tool.

In the ancient forest of Białowieża, straddling the border of Poland and Belarus, that idea is already playing out in real time. This is one of the last remaining fragments of Europe’s primeval woodland, a place where ecological processes have continued with minimal interruption. It is also where the European bison was pulled back from extinction.

By 1927, the species had vanished from the wild entirely. What remained was a fragile population of just a few dozen animals in captivity. Today, there are thousands roaming freely once again, all descended from a genetic bottleneck of just 12 individuals . The recovery is remarkable. But the more compelling story lies in what these animals do when left to shape a landscape.

Bison are not passive inhabitants of forests. They are agents of disturbance, and in ecological terms, disturbance is often where life begins again.

As they move through woodland, they break branches, strip bark and push through dense undergrowth. These actions open up the canopy, allowing light to reach the forest floor. Seeds that have lain dormant begin to germinate. A patch of uniform woodland starts to fragment into a mosaic of habitats.

Dead wood accumulates and remains in place, rather than being cleared. This matters. In Białowieża, thousands of species depend on decaying timber for at least part of their life cycle . Fungi, insects and microorganisms colonise fallen trunks, creating a layered ecosystem that supports birds, mammals and plant life in turn.

The presence of bison accelerates and diversifies this process. They act, in effect, as ecosystem engineers.

Their grazing patterns prevent any single plant species from dominating. Their hooves disturb soil, creating niches for new growth. Their dung disperses seeds and fertilises the ground. Even their absence leaves a trace, as paths and clearings persist long after a herd has moved on.

What emerges is not a neatly managed forest but a dynamic one. A place defined by variation, unpredictability and resilience.

For Don, a bison ranger working with Wildwood Trust in Kent, witnessing this system first-hand was transformative. His visit to Białowieża, captured in the film Zubr, is less about encountering a rare animal than about recognising a different way of thinking about land.

The forest operates without the constant corrective hand of human management. There is no attempt to tidy, optimise or control. Instead, ecological processes are allowed to unfold, shaped by species interactions rather than external design.

That realisation carries weight when brought back to the UK.

In Kent, the Wilder Blean project is attempting something that would have seemed improbable just a decade ago: the reintroduction of free-roaming European bison into British woodland. It is the first time in thousands of years that such animals have shaped these landscapes.

The early results are already visible. Dense, uniform woodland begins to open. Glades appear. Light filters through. Insects return. Birds follow. What was once a relatively static environment becomes animated again.

Importantly, this is not just an ecological experiment. It is a social one.

In Białowieża, local communities live alongside bison as a matter of course. Encounters that might feel extraordinary to visitors are woven into daily life. That relationship has evolved over time, shifting from fear and conflict to a more balanced coexistence.

The same question now faces Britain. Can large wildlife exist alongside people in a modern, densely populated landscape?

Projects like Wilder Blean suggest that the answer may be yes, but not without adjustment. It requires changes in land use, in expectations and in how success is defined. A forest that looks “messy” may, in ecological terms, be thriving.

There is also a deeper cultural shift at play. Rewilding is often framed as a technical process, involving species reintroduction and habitat restoration. Yet its success depends just as much on public perception.

When people see bison moving through woodland, the effect is immediate. It is not an abstract concept but a tangible experience. The scale of the animal, the sound of its movement, the visible impact it leaves behind. These encounters create a sense of connection that data alone cannot achieve.

As Don reflects in the programme, that connection is where change begins. People protect what they understand and value.

There are, of course, limits. Nature is resilient but not infinite. The conditions that allow ecosystems to recover must still be protected. Space, time and continuity are essential. Rewilding cannot simply be imposed. It must be supported and sustained.

Yet the presence of bison offers a glimpse of what recovery might look like if those conditions are met.

Not a return to a fixed past, but the re-establishment of processes that allow landscapes to evolve again. A shift from managing nature as a static resource to participating in it as a dynamic system.

The lesson from Białowieża is not that Britain can replicate an ancient forest overnight. It is that the principles underlying that forest still apply.

Disturbance can be constructive. Complexity can be restored. And sometimes, the most effective intervention is to step back and allow species to do the work they evolved to do.

In that sense, the European bison is more than a symbol. It is a mechanism.

And in a country searching for ways to rebuild its natural systems, that may be exactly what is needed.

Click Here To Watch Zubr

External Links
IUCN European Bison Conservation
Rewilding Europe

First published in the Ecoflix newsroom.