Why Is Bear-Human Conflict Rising on the Appalachian Trail? A Bear Researcher Explains

Why It Matters

The trend underscores the need for better food‑storage practices and education to protect both hikers and bear populations, preventing costly wildlife removals and safety incidents.

Key Takeaways

• 2025 bear reports on AT jumped 75% to 42 incidents.
• U.S. black bear population exceeds 800,000, double other species.
• Just 13.6% of thru‑hikers use bear canisters.
• Food‑conditioned bears may become aggressive and face removal.
• Group, bear spray, and slow retreat prevent 99.9% of attacks.

Pulse Analysis

Bear‑human encounters on the Appalachian Trail surged in 2025, with the Appalachian Trail Conservancy reporting a 75 percent jump to 42 documented sightings. While the absolute number sounds modest, the spike reflects two converging trends: a thriving black‑bear population—estimated at over 800,000 individuals, more than twice the combined total of all other North American bear species—and a boom in outdoor recreation. More hikers mean more opportunities for overlap, and occasional climate‑driven food shortages, such as poor berry crops, push bears to search beyond their natural foraging zones, increasing the likelihood of contact with people.

Two behavioral pathways drive the risk: habituation and food conditioning. A habituated bear tolerates human presence but still relies on natural foods, posing limited danger. In contrast, a food‑conditioned bear that has accessed unsecured meals can gain thousands of calories from a single snack, prompting it to take greater risks, follow hikers, and potentially attack. The problem is amplified by lax food‑storage practices—only 13.6 percent of thru‑hikers on the AT use certified bear canisters, while a third admit to keeping provisions inside their tents. Such habits not only endanger hikers but also increase the odds that wildlife officials will have to euthanize problem bears.

The simplest mitigation strategy is education combined with proper gear. Experts recommend three actions whenever a bear is sighted: stay in a group, have bear spray ready, and retreat slowly while facing the animal. These steps deter both black and grizzly bears in over 99 percent of cases. Trail managers are responding by expanding mandatory canister zones and increasing signage about food conditioning. As hiker numbers keep rising, consistent compliance will be essential to prevent further escalation of conflicts and avoid the costly removal of bears that become human‑dependent. Ultimately, responsible recreation protects both visitor safety and the long‑term viability of the Appalachian bear population.