To get into town from my home, I walk past century-old stone walls. The rocks are shaded velvety green by moss, and plumes of ferns spring from crevices with starry pink flowers hovering above.

To lichens and moss, the wall’s dry stones are surfaces where plants can’t compete. For plants, such walls are edges that separate patches of ground into zones that are sunny or shady, windward or ...

Stone walls can be found here and there in other ... in his neighborhood depend on it as a unique habitat. To lichens and moss, the wall’s dry stones are surfaces where plants can’t compete.

These soil surfaces on the Great Wall are covered by a ... Past studies have found lichen and moss biocrusts to be a destructive threat to modern heritage stone structures due to the microbial ...

Stone walls can be found here and there in other ... in his neighborhood depend on it as unique habitat. To lichens and moss, the wall’s dry stones are surfaces where plants can’t compete.