Invasive exotic species are non-native species which have been introduced into an ecosystem, and, because of their aggressive growth habits and lack of natural predators, displace native species. For more information about how the FWS deals with invasive species, please visit http://www.fws.gov/invasives.
Several invasive species occur on the Complex. Some of the more prominent and obvious are feral hogs, coyote, nutria, and armadillo. These species were either accidentally released and became acclimated to living in the wild, were intentionally released for sport or trade, or have expanded their ranges. These invasive species have been sporadically suppressed by lethal means.
Invasive plants, insects, and smaller organisms are more difficult to recognize and monitor. The Complex does not have an invasive species monitoring program to detect initial introductions, rate of spread, and impacts. However, several invasive plants, such as alligator weed, kudzu, and cogongrass are known to occur, displacing native vegetation. Attempts at control have been opportunistic and sporadic, using both biological and chemical means.