Yellow-backed duiker
These forest dwelling antelope feed selectively on plants or plant parts such as shoots, roots, leaves, and buds, but their diet is mainly made up of fruits. The yellow-backed duiker is more efficient at digesting poor quality food than most other duiker species. This allows them to eat large, low quality fruits. Their diet makes them very hard to keep in captivity as most domesticated fruits are not well suited to their low fiber requirements. They are considered concentrate selectors, meaning they eat "diets relatively low in fiber, have a well developed ability to forage selectively, a rumen bypass, a rapid passage and high fermentation rate for starch, and they frequently encounter toxins."
Atriplex nuttallii
It has fairly good nutritional forages for livestock and wildlife species throughout its range. Antelope, mule deer, rabbits, and mourning doves graze on it. Its leaves are an important food source during the winter because of their persistency. It is especially important for sheep because it contributes to the minimum nutritional requirement for maintenance of gestating female sheep.