Losing Sight of Forest Ecology

Challenging the Forest Service’s Post-Fire Restoration Narrative

In a recent U.S. Forest Service webinar, agency scientists and land managers gathered to discuss post-fire restoration strategies. The speakers claimed there is an urgent need for intervention after wildfire and rested on the troubling assumption that high-intensity burned forests—areas where most or all of the trees were killed by fire— are inherently degraded and require intensive restoration.

Their recommendations—centered largely on these high-intensity burn patches—focused on promoting post-fire logging of vast areas of vital wildlife habitat created by patches of high-intensity fire, as well as eliminating and suppressing native shrubs with heavy machinery and herbicides. They also encouraged creating tree plantations after wildfires by planting what they called “climate-informed” trees and moving seed sources upslope to “better align our ecosystems” with projected future climates. The underlying premise suggests that high-intensity burned forests represent a threat to forest health that must be addressed by replacing supposedly undesirable natural ecological processes with human-designed disturbances.

Yet, decades of ecological research suggest the opposite: high-intensity burned forests are a natural and essential component of disturbance regimes that shape healthy forest ecosystems. In fact, dozens of scientific studies indicate that the unique forest habitat type created by high-intensity fire, known as “complex early seral forest”, is comparable to old-growth forest in terms of native biodiversity and wildlife abundance.

Across North America, forests evolved with natural disturbance processes such as wildfire and cycles of native insects like bark beetles. The scale and intensity of these processes varied widely in a dynamic dance of constant change, shaping forest structure and the life within it. These disturbances naturally thinned a portion of dense stands, removed weakened trees, opened space for new growth, created important wildlife habitat in the form of standing dead trees, or “snags”, and guided evolutionary pathways in ways human design cannot replicate.

During the webinar, panelists questioned the ecological value of the more intense end of natural disturbance regimes, specifically targeting high-intensity burn patches as places to prioritize large-scale habitat “restoration.” This perspective overlooks extensive research showing that high-intensity burned forests regenerate naturally, and often vigorously, without human intervention, that concerns about frequent transitions from forest to non-forest habitat are unsupported by empirical data, and that ecological change should be evaluated on ecologically meaningful timescales.

Even in the small percentage of areas where conifer regeneration is not immediate, this strengthens forests ecologically by creating a mosaic of heterogeneous structure and diversity that enhances resilience at multiple spatial scales. The contradiction is difficult to ignore: managers often advocate for mimicking high-intensity disturbance through logging or thinning to create openings, while simultaneously arguing that naturally created openings are problematic.

After high-intensity fire, research consistently shows that pioneering species quickly establish a dense growth of wildflowers and shrubs that rebuild soil fertility and stabilize slopes. Naturally regenerating trees take root while many plant and animal species reach peak abundance among the blackened snags, like the black-backed woodpecker, among many others. Some species, such as giant sequoia, even rely on intense fire to release seeds and create the large openings necessary for robust regeneration. And where conifer regeneration occurs more slowly, that means shrub-nesting birds and pollinators that depend upon flowering shrubs enjoy their necessary habitat just a bit longer. It is simply another expression of a healthy, adaptive ecosystem responding to disturbance on ecological timescales rather than human expectations.

While low- to moderate-intensity burn areas dominate most fire perimeters, they do not produce the essential habitat that ecologists call complex early seral forests. These structurally rich ecosystems form after high-intensity fire, often supporting greater plant species richness than unburned forests and providing critical wildlife habitat. Their diverse understories and ecological processes promote fierce natural resilience—the kind of resilience that preserves ecological integrity in a changing climate. Compared to historical records, this stage of forest succession is still significantly underrepresented in today’s forests.

During the webinar, post-fire “salvage” logging was promoted as a tool to recover economic value, reduce fuels, prepare sites for planting, and transition snag forest habitat toward manager-desired structures and compositions. Yet, this practice removes the very features that make burned forests ecologically valuable and reduces the availability of this rare type of habitat. Logging strips away snags and downed wood that support wildlife and nutrient cycling while heavy machinery compacts soil, killing and damaging the next generation of trees. What remains is a simplified landscape stripped of the structural complexity wildfire created. In reality, so-called “fuels reduction treatments” (a euphemism for logging) are some of the greatest threats to our forests, not natural disturbance itself.

Rather than attempting to engineer resilience, the most responsible approach is far simpler: allow natural processes to unfold without intervention. Forests possess their own adaptive mechanisms that have maintained healthy ecosystems through time. Intense natural disturbance processes, such as occasional insect outbreaks, act as natural selection events and favor individuals best suited to changing conditions in ways human management cannot predict. Where intervention is necessary, it should focus on reducing human impacts rather than expanding them—such as decommissioning road networks, reintroducing extirpated species, and strengthening protections so that burned landscapes can avoid the industrial “restoration” treatments proposed by panelists.

Naturally-ignited low-, moderate-, and high-intensity fire all play essential roles in forest ecosystems and any attempt to suppress these roles will degrade natural fire regimes. The real path to restoration lies not in controlling the aftermath of wildfire, but in addressing the source of human-induced climate change, allowing forests to grow to their full ecological potential, and restraining our desire to manage every detail of a forest. Intensely burned forests represent a vibrant stage of ecological succession that supports unique biodiversity, genetic adaptation, and long-term resilience. The healthiest future for our forests will not come from managing away high-intensity natural disturbance processes or designing every stage of succession to meet our desired conditions—it will come from refusing to lose sight of forest ecology and allowing wildness itself to guide forests forward.