Africa, which has also been prone to a great deal of drought conditions during its natural cycles exhibits all of these same impacts by the native wildlife to water sources, vegetation and soils. The attempts to single out wild equid populations as the only species that create these impacts is both prejudicial and inaccurate.
Some examples of native species in their native habitat have been included to help illustrate this point and as can be clearly seen, the "natives" are documented as severely impacting all phases of environmental health and ecosystem functions through soil compation, destruction of stream banks, soil erosion, water fouling, denuding of vegetation and heavy fecal matter within the area.
Native Gazelles at waterhole at Etosha National Park - Zambia
A large herd of native Cape Buffalo - Tanzania
Native Cape Buffalo - Kenya
Native Wildebeests and Zebras - Amboseli, Kenya
Native Zebras - Etosha National Park - Zambia
Native Zebras - Botswana
Text from Encylopedia Britannica