The world needs to focus less on where food is grown (i.e., small farms vs large farms) and more on how food is grown (i.e., sustainably and efficiently). Small farmers can preserve biodiversity by using more sustainable techniques, such as rotating crops, inter cropping, alley farming, and using several varieties of a single crop. They can also use herds or flocks of several species and breeds as a strategy for maintaining high diversity.
Furthermore, small farms are more likely to spend their rands in the community on farm-related items (e.g.,machinery, seeds, farm supplies, and so forth.). Also, food grown locally, processed locally, and distributed locally can generate jobs and help stimulate local economies.