Why do we say a forest consists of many micro habitats?
A habitat is a place where a home of many different species of plants and animals, it is made up of many habitats. The trunks of trees, branches, and leaf litter are all habitats to different species.
Each of these habitats, in turn, can be home to many different smaller life forms, or microhabitats. for example, when a woodpecker peaks a hole in a tree trunk, it becomes the home of a squirrel, which may enlarge it, so that later it becomes the home of an owl. Very soon, microscopic plants and organisms spring up in the decaying tissues of the hole, and insects come to feed on these organisms. If water collects in the hole, it becomes a tiny pond, and the life there will be aquatic, and include mosquitoes, round worms, even small frogs or toads.
In short, the hole made by a woodpecker gradually becomes a world in itself, which exists inside a tree that is a part of a forest or in other words, a micro- habitat.