The thirteen-lined ground squirrel is a burrower. It digs tunnels up to 6 meters (about 20 ft.) long. From November to March, it hibernates underground. In late May, the female gives birth to as many as nine young. This ground squirrel eats seeds, other plant parts, and insects.
Creeping Juniper ([i]Juniperus horizontalis[/i])
Creeping juniper is a typical plant of the Illinois dunes – at the southern limit of its range. It is adapted to dry, open habitats such as dunes. Its spreading branches and roots form large mats, making it an excellent ground cover and soil stabilizer. Many birds and mammals eat its berry-like cones.
Common Juniper ([i]Juniperus communis[/i]
Here on the dunes, it only grows to about 1.5 meters (about 5 ft.) tall. It stabilizes the sand and helps build soil so other plants can grow here.