Examples of habitat destruction include deforestation, filling wetlands and mowing fields. Habitat loss or destruction caused by population growth and expansion and the needs of people on the planet lead to loss of plant and animal species.
Agricultural needs drive much of the habitat loss in the United States. To grow more crops, lands are clear cut, wetlands are filled, and prairie grasses are cut so the land can be cultivated. Excessive grazing of cattle and over-fishing also damage habitats on the land and in water. Changes to the area's natural water system for crop irrigation also cause habitat destruction.
Development of previously unused lands causes a great deal of habitat loss. Forests are cut down, fields are cut and stripped of their grasses, and flowers and animals are blocked from their natural habitats by roads and shopping malls. Logging may start the destruction process, and building high-rise apartments or strip malls furthers the habitat loss.
The use of water, and meeting the needs of the growing population, leads to habitat destruction. Dams change the flow of rivers, changing the ecology downstream. Diverting water for human use and pollution from cities and farms have a serious impact on the habitats around the water source. The water chemistry changes, the water level is altered, and the habitats and ecosystems downstream can be destroyed.