![]() ![]() Flying foxes or fruit bats of the genus Pteropus are injurious species and are listed under the Lacey Act. Indian flying foxes ( Pteropus giganteus giganteus). The way the study measured success was by examining whether or not the species was established at the time of listing, if it has since been established, and if it subsequently spread to other states. A recent study found that in the case of preemptive listings, injurious species regulations were 100% effective at keeping injurious species out of the ecosystems (all 288 remained not established). Since 1952, 288 species have been identified as a potential threat and listed as an injurious species before they arrived in the U.S., and a total of 307 species are listed for invasiveness. Ninety-four percent of injurious species are listed preemptively, often limiting or eliminating the damage caused by that invasive species. However, these species are an exception to the rule, as they were added to the list after they had already become established, and causing harm in the U.S. Zebra mussels ( Dreissena polymorpha), Burmese pythons ( Python bivittatus), and some invasive carp are well-known examples of injurious species. By prohibiting the importation of potentially destructive species, the spread of invasive species can be prevented before they enter the environment. territory without a permit ( injurious wildlife provisions of the Lacey Act ). Once a species is added to the list of injurious wildlife, it becomes illegal to import it into or throughout the continental U.S., the District of Columbia, Hawaii, Puerto Rico, or any U.S. The list of injurious wildlife regulates species expected to cause harm if they were to become established in the U.S.
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