Agriculture

Farmers tend to grow a few species of crop plant and rear only a few species of animals. They select breeds and crops that give a high yield. This reduces biodiversity in the area.Deforestation occurs to make large areas of land available for farming. Hedgerows are removed so they can use large machinery.The use of pesticides and herbicides to kill pests and weeds reduces biodiversity.Usually farms grow only one crop. This is known as monoculture. This results in less biodiversity.