Habitat fragmentation
discontinuities in an organism's environment causing population fragmentation and ecosystem decay
Habitat fragmentation happens when large habitats are divided into smaller ones, separating all the species that lived there and depended on each other.
Causes
changeHabitat fragmentation is not good because it involves some amount of habitat destruction. Plants and other organisms in these areas are destroyed and mobile animals escape from those places to find another habitat causing an excessive crowding and possible competitions among different animals.