When restoring land, one question returns again and again: When do we step back and let nature run its course, and when do we step in to protect what’s already there?
This balance between allowing change, even stepping in to accelerate it, and safeguarding the irreplaceable, is at the heart of every decision we make at Oxygen Conservation. This balance between allowing change and even stepping in to accelerate it, and safeguarding the irreplaceable, is at the heart of every decision we make at Oxygen Conservation.This balance between allowing change and even stepping in to accelerate it, and safeguarding the irreplaceable, is at the heart of every decision we make at Oxygen Conservation. And at Kinrara, the question recently moved from theory to reality.
For years, we’ve celebrated the return of beavers to the British landscape. After centuries of absence, their re-emergence is, without doubt, one of the most hopeful signs of ecological recovery. These animals have the extraordinary ability to reshape whole catchments. They slow and store water, create wetlands, fell riverside trees, and bring back the dynamic, messy, life-rich habitats that our rivers desperately need. Their influence is, in many ways, a quiet revolution.
Yet for landowners, their return also raises deeper questions about what it means to restore a landscape. At Kinrara, we’ve recently seen that a family of beavers began feeding on a small group of veteran aspens. These particular trees are important; they host rare epiphytic lichens and microhabitats that take decades, sometimes centuries, to form. Their loss would mean the disappearance of a unique ecological community that cannot easily or quickly be replaced.
Local naturalists who know these aspens well reached out after spotting the beaver activity. They suggested a straightforward and non-intrusive solution: protective mesh placed at the base of the most vulnerable trees. Their depth of knowledge and care for the estate’s ecology was immediately evident, and we are grateful for their willingness to look so closely at what is happening on the ground. Their insight prompted a much wider conversation within Oxygen Conservation about the responsibilities that come with restoring land.
The central question was not whether beavers are beneficial. The evidence from Scotland, England, Europe, and North America is overwhelming. Where beavers have space to work, they bring water back to landscapes, increase biodiversity, build resilience to flood and drought, and restore natural processes long suppressed by human activity. The question instead was how to balance these long-term, landscape-scale benefits with the risk of losing something as irreplaceable as a handful of veteran aspens.
This dilemma is not unique to Kinrara.
Around the world, there are examples that illustrate the complexity of knowing when to intervene. When wolves returned to Yellowstone, nature rebounded in extraordinary ways: long-suppressed ecological dynamics returned, leading to the recovery of woody vegetation, the expansion of beaver colonies, and a renaissance of ecological diversity along the riverbanks. When sea otters returned to the Pacific coast, it unleashed the regrowth of vast kelp forests by reducing urchin grazing pressure. In both cases, stepping back allowed nature to heal itself in ways no management plan could have replicated.
But there are lessons from the opposite direction too. At Oostvaardersplassen in the Netherlands, a well-intentioned attempt to restore large herbivore grazing systems within a fenced landscape resulted in ecological and welfare challenges when the system became too constrained to support the animals during harsh winters. And early Iberian lynx reintroductions into Spain faltered because prey populations and habitat connectivity were not yet ready. These examples demonstrate that stepping back too early, or without the right ecological foundations in place, can create stress rather than recovery.
In a world where Natural Capital and environmental action are under constant scrutiny, we can’t afford unforced errors. We are on a mission to prove the value of our actions, and therefore, we can’t afford not to learn from the past.
Restoration, therefore, demands judgment rather than ideology. Intervening and not intervening are both active choices. Neither carries moral neutrality. Both shape outcomes. These are decisions we constantly navigate at Oxygen conservation, balancing what the environment can recover from itself, and where action is needed to restore balance.
After careful consideration, Oxygen Conservation reached a conclusion about how best to respond at Kinrara. The veteran aspens will be protected because the epiphytic species they support are extremely rare, and because losing them would mean the loss of something truly special in the estate’s ecological fabric. The protective measures required are small, local, and targeted, and they do not limit the beavers’ broader ecological role. At the same time, the beavers will be welcomed and allowed to continue their engineering elsewhere on the estate, where there are plenty of other trees and where their work will bring widespread benefits over time.
It is a compromise, nobody wants to see wire mesh wrapped around trees, but in this instance, it allows us to safeguard a precious part of the estate’s ecological history while embracing the beavers’ role in its ecological future. And one day, when healthy aspen woodland is more widespread, losing an occasional veteran tree to a beaver may feel like a normal part of a thriving ecosystem, rather than a risk we can’t take.
We have gladly permitted and are supporting the local naturalists who raised the issue to carry out the physical protection of these trees. Their involvement reflects the kind of collaborative stewardship that effective landscape restoration relies upon.
But the ease of this specific decision should not distract from the larger challenge that faces anyone working to regenerate land. Every day brings new questions about when to let nature take its course, when to step in, and how to balance the value of what already exists with the possibilities of what could return.
Restoring a landscape is not a matter of choosing sides. It is an ongoing practice of discernment, of holding complexity, and of recognising that both intervention and non-intervention have their place. At Kinrara and across all of Oxygen Conservation’s work, the aim is to act with the humility and care required to honour the past while giving full room for the wild future to grow.
Author: Will Lister, Siblyback Estate Manager