What is prairie pothole?

Prairie potholes are shallow depressions found primarily in the northern Great Plains of North America, formed by glacial activity during the last Ice Age. These wetlands play a crucial ecological role by providing habitat for diverse wildlife, particularly migratory birds, and supporting unique plant communities. They also contribute to water filtration and flood control, making them important for the surrounding ecosystems. Conservation of prairie potholes is vital due to their vulnerability to agricultural practices and climate change.