Final answer:
Various combinations of species are used in forage production for different purposes, such as using invasive aquatic plant species as livestock feed and stocking certain fish species as forage for predator species. Forage crops like corn and switchgrass are also used in the production of ethanol.
Step-by-step explanation:
In forage production, various combinations of species are used for different purposes. Various combinations of species are used in forage production for different purposes, such as using invasive aquatic plant species as livestock feed and stocking certain fish species as forage for predator species. Forage crops like corn and switchgrass are also used in the production of ethanol.
For example, in freshwater ecosystems, invasive aquatic plant species are often employed as livestock feed due to their rampant growth. In the US, fish species such as shads, chubs, dace, and Golden Shiner are stocked as forage for other predator species. Additionally, forage crops like corn, switchgrass, and wood are used in the production of ethanol, while soybean and sunflower are used for biodiesel production.