Ice Caves No Longer Safe
The ice formations in Leelanau Township, north of the park, are no longer safe to visit. High winds have fractured the ice, moving it to the west. Huge cracks have formed in the cave arches, making them very unsafe and open water is now visible.
What a startling contrast we find between the open, sunny environment of the dunes and the lush, shady world of the beech-maple forest. Here plants must compete for the limited amount of sunlight. Shade-tolerance is the key to survival.
The dominant trees are sugar maple and American Beech. Both are able to survive in the shade of taller trees. However, if by chance a young tree gets enough sunlight, it experiences a burst of growth. By growing tall, it can reach the opening in the canopy of leaves. In addition to beech and maple, you will see black cherry, hemlock and basswood trees here. This is he climax forest of the area.
Other plant communities, given enough time, tend to phase into a beech-maple forest. Once established, this forest remains stable unless it experiences a setback such as forest fire or logging. Tune in all your senses. Maybe you will catch a glimpse of a squirrel or deer, or smell the odor of decaying leaves, or hear the flutelike song of the wood thrush.
Did You Know?
In the US, invasive species are the second biggest threat to native ecosystems after habitat loss. They reduce diversity, alter disturbance regimes, and have cascading effects on food webs, costing upwards of $140 Billion per year. More...