Why did prairie plants initially fail to grow at the North Branch restoration site?

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wetland restoration — ecological restoration Wetland restoration along the Târnava Mică (Tîrnava Mică) River in Romania. A former gravel mine (left) was transformed into a functional wetland (right).

At the North Branch restoration site in Illinois, the initial effort to replant prairie species failed because local animals consumed the small, growing plants.1

To overcome this challenge, volunteers implemented a natural fire regime through controlled burns. This intervention proved successful, allowing the original prairie plants to flourish while suppressing invasive weeds. This experience highlights a fundamental principle of ecological restoration: successful habitat management often requires restoring natural ecological processes—such as fire—to protect and sustain native species.1