Published online by Cambridge University Press: 24 August 2009
Ecological interrelationships are far less complex in the desert biome than they are in grassland or forest but, even so, they are little understood. Some of the better known are described, but none of them is relevant to desertification. Harmful insects, such as locusts, grasshoppers, and termites, are unlikely to be responsible for extension of desert, except when they intensify environmental changes that have already been initiated by Man. Similarly, mammalian herbivores, even if protected and allowed to attain far greater population sizes than at present, are most unlikely to cause harm, as they are highly nomadic and always on the move.
These relationships hold true despite the fact that the natural predators of desert mammalian herbivores have largely been eliminated by human activities.