Rocks and Walls: Natural Versus Secondary Habitats

  title={Rocks and Walls: Natural Versus Secondary Habitats},
  author={Deana L{\'a}n{\'i}kov{\'a} and Zdeňka Lososov{\'a}},
  journal={Folia Geobotanica},
Walls are often considered secondary habitats for vegetation of natural rock surfaces. Compared with rocks, walls differ in many features, for example the presence of a binding material (mainly calcareous mortar), location in settlements and exposure to human impact. A data set of 1,205 phytosociological relevés recorded on horizontal wall tops, wall verticals and rock verticals in the Czech Republic was used to compare their vegetation with regard to i) species composition (frequent species… CONTINUE READING