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IMAGE: Photographs showing a non-invaded area [left] and an area invaded by Urochloa brizantha [palisade grass, right] / Gabriella Damasceno)
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Credit: Gabriella Damasceno
 Invasive alien species, defined as animals and plants that breed and disperse in a landscape beyond their native range, have negative environmental, social, and economic impacts. One example among many is the forage grass genus Brachiaria, originally African and introduced to Brazil to form cattle pasture. It has become a major threat to the survival of native species and biodiversity at several spatial scales. 
Complete eradication of invasive species is often impracticable. Attempts to do so have had undesirable consequences and even been damaging because merely withdrawing an invasive species does not restore the original environment, as in the areas of Cerrado (Brazilian savanna) invaded by pines. Instead of eradication, therefore, the goal should be continuo ....

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