| http://www.w3.org/ns/prov#value | - Worldwide an estimated 80% of endangered species could suffer losses due to competition with or predation by invasive species.[28] Pimentel also reports that introduced species, such as corn, wheat, rice, and other food crops, and cattle, poultry, and other livestock, now provide more than 98% of the U.S. food system at a value of approximately $800 billion per year.[28] As highly adaptable and g
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