Path of the reindeer

From summit to sea – reviving reindeer routes and grazing lands

Path of the reindeer

From summit to sea – reviving reindeer routes and grazing lands

Background to initiative

Reindeer play a central role in northern boreal forest ecosystems, but this is decreasing as a result of landscape fragmentation from forestry, industrial land use, and climate change. Migration routes have been cut off, natural grazing lands have been lost, and reindeer husbandry are becoming more reliant on supplementary feeding and truck transport. This has implications not only for the ecosystems that they contribute to creating and maintaining, but also for the viability of Sámi reindeer husbandry.

To address these challenges, Rewilding Sweden is in partnership with Sámi communities and the Vindelälven–Juhttátahkka Biosphere organisation. Together, we are striving to revitalise the reindeer’s ecological role by restoring and reconnecting forests in the Vindelälven, Laisälven, and lower Umeälven valleys. At the heart of this effort is a dedicated working group, made up of nominated members from each of the initiative’s partner organisations. The group meets on a regular basis to build trust, map out degraded areas, and come up with concrete restoration actions. The Sámi contribute detailed knowledge of reindeer needs and forest ecosystems. Ecological expertise is provided by Rewilding Sweden, and the Biosphere Reserve organisation offers an arena to engage local stakeholders. The partnership’s greatest strength is the potential to forge tighter links, both within and between Sámi groups, uniting behind a shared 2050 vision: to restore functional reindeer grazing corridors from the mountains on the Norwegian border in the west to the Baltic Sea in the east.

Funding: The Swedish Postcode Lottery Foundation, Private donations
Collaborating organisations: Vindelälven-Juhttátahkka Biosphere Organisation, Local Sámi communities, County Administrative Board of Västerbotten




Prerequisites and rewilding approach

The challenge

Reindeer grazing and migration in the boreal forests of northern Sweden are increasingly fragmented by planted production forests, advancing wind and hydropower development, and mining – pressures amplified by climate change. Old, variated forests, once rich in lichens have been fragmented and replaced by dense stands which restrict movement and reduce forage. Abandoned gravel quarries on formerly lichen-rich land prevent natural regeneration. Warmer winters now keep rivers from freezing solid, making crossing and ice migration no longer possible. Logging debris and repeated freeze-thaw cycles form hard ice layers that trap lichens beyond reach – forcing herders to rely on pellets, hay, and trucking. Forest degradation also undermines climate resilience: clearcuts and soil disturbance reduce carbon storage, and in some areas, boreal forests now release more carbon than they absorb. Together, these pressures damage ecosystems, accelerate global warming, and jeopardize the future of Sámi reindeer herding and its deep cultural connection to the land.

The solution

#1 Pinpointing barriers to grazing and migration

Together with Sámi reindeer herders, we identify specific areas – such as forest stands or migration passages – that pose challenges for grazing or movement. This allows us to move forward with contacting affected landowners, seeking funding, proposing and planning measures, and exploring alternative forestry methods and revenue streams.

At the heart of this work is the deep ecological knowledge held by the Indigenous Sámi – insight rooted in generations of living in close relationship with the Nordic Taiga landscape, attuned to its shifting seasons and bearing witness to the impacts of climate change and intensified land exploitation.

#2 Restoring forests to benefit reindeer

Many forest restoration efforts that support reindeer herding focus on thinning overly dense production forests. Today’s planted forests often contain up to 2,500 trees per hectare – far more than what benefits reindeer. Reindeer herders typically need forest density reduced to around 800–1,200 trees per hectare to allow for easier movement and better access to grazing areas. Thinning opens up the forest structure, making it more accessible to reindeer and more akin to the semi-open pine forests of traditional use in Sámi herding landscapes. Such interventions also provide room for other natural processes with significance to healthy forest ecosystems and cultural landscape values.

#3 Supporting landowners in adopting close-to-nature forestry

As an alternative to conventional clear-cutting practice in Sweden, we propose a close-to-nature forestry approach. Here, single trees are harvested and sold at a premium, while the forest as a whole is preserved. This provides the landowner with a permanent and long-term income, rather than a single payment every 60–80 years and then decades of environmental degradation.

There is good demand for quality wood in the market, so this approach is not only environmentally but also economically sound. In close-to-nature forestry, everybody wins – nature, climate, and landowners.

#4 Re-routing alternative migration pathways

Some of the migration routes traditionally used by Sámi reindeer herders are becoming increasingly difficult and hazardous due to climate change. Frozen rivers, once relied upon for long stretches of seasonal movement, are now often unsafe because of milder winters and fluctuating temperatures. At the same time, many forested areas along these routes have become degraded and offer poor grazing conditions.

By revisiting ancient pathways once used by previous generations of herders, new alternatives may become relevant for the future. We map these potential corridors and explore what restoration measures – particularly in forested areas – could help make them viable once again.

#5 Removal of forestry debris on lichen-rich ground

In thinning of forests, twigs and branches are generally deposited on the forest floor. They form thick mats which exclude light and suffocate ground lichens. Although the debris eventually decomposes, they also last sufficiently long to inflict permanent damage on lichen populations. When woody debris is left on lichen-rich ground, it also prevents reindeer from accessing this important winter forage. The problem is further exacerbated in winter, when fluctuating freeze-thaw conditions create ice layers that seal the lichens even further.

To balance this, we remove logging debris from delicate areas. To avoid depleting the ecosystem of nutrients, we look into methods of keeping them in the system.

#6 Re-lichening the forest floor

Ground lichens – especially reindeer lichens (Cladonia spp.) – are key components of northern boreal forests. These slow-growing species thrive in conditions that are rare in today’s dense conifer production forests: open, light-rich stands on dry, well-drained, nutrient-poor soils with minimal competition from other vegetation and mosses. While forest thinning and canopy opening are important restoration steps, natural lichen recovery is often too slow – or fails entirely – due to low starting populations, limited dispersal, and shifting climate conditions.

We work with specialists using cutting-edge methods to accelerate lichen recovery where nature struggles on its own. By helping these species recolonize restored forests, we strengthen the foundation for resilient ecosystems and improve winter forage for reindeer, which now face serious food shortages in many parts of the north.

#7 Removing Contorta Pine Stands

Extensive planting of lodgepole pine (Pinus contorta) in the 1970s to increase timber production in northern Sweden has had severe ecological and cultural impacts. The invasive tree species grows in dense, shaded stands that outcompete native understory vegetation, such as mosses, dwarf shrubs, and ground lichens – essential winter forage for reindeer. It also fragments the landscape and obstructs historical reindeer migratory routes, undermining Sámi herding practices.

To avoid its spread and reestablish natural forest processes, successful elimination requires a carefully planned, long-term strategy of mature stand clear-cutting, seed source removal, and repeated cycles of clearing regenerating seedlings to avoid re-establishment. All of this is critical to preventing P. contorta’s negative ecological impact and to recover biodiverse, open pine forests that sustain both wildlife and Sámi traditions.

#8 Facilitating hanging lichens

Hanging lichens are a keystone in boreal forests and a critical source of winter food for reindeer when ground lichens are out of reach. They help maintain forest diversity through habitat creation and moisture regulation. In planted production forests that, they are usually lacking due to an absence of old trees. Facilitated return and reintroduction can increase rewilding by restoring ecological processes.

A practical method is to pick lichen bundles from wind-felled trees and hang them on branches in restored areas. The best results are obtained in open, light conditions with older trees and a good air circulation. In time, fragments adhere naturally and begin to grow. Enabling the return of hanging lichens not only raises biodiversity – it helps reindeer survive winter and adds to the general well-being of the forest.

#9 Building local understanding of reindeer herding

To support both ecological restoration and sustainable reindeer herding, we work actively to inform local communities about the needs and rhythms of Sámi reindeer husbandry. Not many are aware of quite how sensitive reindeer are to disturbance, particularly at such critical periods as calving or during seasonal migration. Through dialogue, signage, and local outreach, we help spread practical information – such as when and where to avoid snowmobiling, skiing, or organising events that may disrupt herding.

By sharing knowledge, we aim to reduce misunderstandings and build acceptance around reindeer herding as a living and nature-based tradition that also depends on healthy ecosystems. When local residents and land users are better informed, it becomes easier to find shared solutions that respect both nature and culture.

#10 Promoting reindeer-sensitive forestry practices

There is a clear need to integrate the needs of reindeer into forest planning. That’s why we engage in dialogue with forest companies to promote reindeer-friendly logging practices. In these discussions, we raise points such as:

◆ Keeping pine forests open on dry, poor soils to support lichens and grazing
◆ Extending harvest cycles in lichen-rich forests to reduce fragmentation and boost lichen continuity
◆ Removing logging debris to improve access and lichen regrowth
◆ Promoting uneven multi-aged forests to protect hanging lichens
◆ Minimising soil disturbance to preserve ground lichens
◆ Avoiding planting lodgepole pine
◆ Not fertilising lichen-rich sites
◆ Improving forestry–Sámi dialogue and coordination

More on the ’Path of the Reindeer’ initiative

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