Abstract

Rock pools are small eroded depressions that occur in a matrix of bedrock. Despite their size, they support diverse aquatic invertebrate communities. Hydroperiod is an important determinant of the species composition that can be found in a rock pool at a given moment. Species sorting, i.e., the distribution of species based on local environmental conditions, is a dominant structuring process in rock pool communities. Trade-offs between competition and predation tolerance are important underlying factors driving succession in these systems. As freshwater rock pools are unique habitats housing a surprisingly high diversity of specialist and endemic species, protection of these habitats is essential.

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