---
COMMENSALISM - A symbiotic relationship in which one organism benefits while the other is neither harmed nor benefited.
Examples of commensalism:
Moss growing on trees benefits by being raised above forest floor competition, while the tree doesn't get much out of the deal either way.
A desert holly shrub provides shade for young creosote bush.
A cactus wren builds its nest in a cholla cactus to protect its young from predators such as raven. There is no harm to the cactus.
Also see: MUTUALISM, PARASITISM, SYMBIOTIC,
More information:
Creosote bush
Creosotebush uses white bursage as a nurse plant. Generally all young creosotebush were rooted beneath the canopies of live white bursage or positioned next ...
A fringe-toed lizard living in an abandoned rat hole, the lizard benefits from shelter, while the rat has moved on.