Early in primary succession,lichens and mosses colonize bare rock and become the first ecological community.Why are they critical to later stages of succession?

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Lichens and mosses are critical to later stages of succession because they help create soil by decomposing and accumulating organic matter. The soil created by lichens and mosses provides a foundation for larger and more complex plant communities to grow, ultimately leading to a climax community.

Early in Primary Succession,lichens and Mosses Colonize Bare Rock and Become