Changes in growing seasons and shifts in the boundaries between grasslands, forests, and shrublands are projected results of changing temperature and precipitation regimes. Increased levels of carbon dioxide in the atmosphere may result in a decline in food values of grasses for herbivores.

a broad category of land characterized by native plant communities that are often associated with grazing. Rangelands are managed by ecological rather than agronomic methods.

native grasslands, shrublands and woodlands that cover a large proportion of the arid and semi-arid regions, and also include tropical savanna woodlands; regular cropping is not practised and the predominant agricultural use, if any, is grazing of sheep and cattle on native vegetation