The Role of Epiphytic Algae and Grazing Snails in Stable States of Submerged and of Free-Floating Plants

Dominant floating and submerged rootless vegetation can be regarded as alternative stable states world-wide. The competition between these two vegetation types can be strongly influenced by epiphytic algae. These algae, on the other hand, are partially controlled by grazers like snails. However, how...

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