Perhaps the greatest threat that faces many species is the widespread destruction of habitat. Deforestation, farming, over-grazing and development all result in irreversible changes—soil compaction, erosion, desertification, and alteration of local climatic conditions. Such land use practices vastly alter or even eliminate wildlife habitat. In areas where rare species are present, habitat destruction can quickly force a species to extinction.
By protecting habitat, entire communities of animals can be protected together and when communities are kept intact, less conservation intervention is required to ensure species survival. Parks, reserves, and other protected lands are too often the only habitats left untouched by habitat destruction.