Decadeslong effort revives ancient oak woodland

Vestal Grove in Cook County, Illinois, looks nothing like the scrubby, buckthorn-choked tangle that first confronted restoration ecologists 37 years ago. Thanks to the efforts of a dedicated team that focused on rooting up invasive plants and periodically burning, seeding native plants and culling deer, the forest again resembles its ancient self, researchers report in the journal PLOS ONE.