Snake ban: 4 constrictors prohibited from import by US Wildlife Service

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Burmese python caught at Everglades National Park.
Burmese python caught at Everglades National Park.

CONCORD, NH – The U.S. Fish and Wildlife Service has declared the reticulated python, DeSchauensee’s anaconda, green anaconda and Beni anaconda as “injurious” under the Lacey Act. A fifth snake, the boa constrictor, has been removed from consideration for listing as an injurious wildlife species.

The listing will prohibit import of the four snakes into the U.S. and its territories, as well as transport across state lines for snakes already in the country, and is intended to help restrict the snakes’ spread in the wild. Following opportunities for public comment, an economic analysis and an environmental assessment, the Service produced the final rule, which was published in the Federal Register March 10, 2015. The prohibitions in the rule will go into effect 30 days after publication and apply to live individuals, gametes, viable eggs or hybrids of the four snakes.

“Large constrictor snakes are costing the American public millions of dollars in damage and placing at risk 41 federally and state-listed threatened or endangered species in Florida alone,” said Service Director Dan Ashe during an event to announce the rule at the Arthur R. Marshall Loxahatchee National Wildlife Refuge in Florida. “Today’s action will help prevent humans from contributing to the spread of these snakes.”

In March 2010, the Service proposed listing nine species of large constrictor snakes not native to the United States as injurious wildlife. The listing was finalized in 2012 for four species: Burmese python, yellow anaconda, and northern and southern African pythons. In 2014, the Service reopened the public comment period for the remaining five species, including the boa constrictor. Although the boa constrictor can be damaging to U.S. wildlife, the circumstances surrounding the species, which include widespread private ownership and domestic breeding, render importation and interstate transport prohibitions less effective.

The reticulated python and the green anaconda, considered the two largest snakes in the world, are traded commercially as pets. Some of these powerful snakes have been intentionally released into the wild, while others escape from poorly secured enclosures. Small numbers have been found in the wild in Florida, putting at risk native wildlife unprepared to defend itself against these giant and efficient predators. Prohibiting additional importation and interstate transportation could reduce opportunities for future releases into the wild.

The Beni and DeSchauensee’s anacondas are not known to be in the United States. The Service determined an injurious listing now is the most effective way to prevent future problems like those occurring with the Burmese python. In Florida, Burmese pythons are preying on native wildlife species, including those that are endangered or threatened. Scientists have not found any way of eradicating invasive constrictor snakes once they become established in the wild.

Species are added to the list of injurious wildlife to prevent their introduction or establishment and to protect the health and welfare of humans; the interests of agriculture, horticulture or forestry; and the welfare and survival of wildlife resources.

The Service considered a variety of factors when evaluating these snake species for listing as injurious, such as the species’ survival capabilities and ability to spread geographically, their impacts to threatened and endangered species, and resource managers’ ability to control and eradicate the species.

Most people who own any of these four species will not be affected by this regulation. Those who own any of these species will be allowed to keep them if allowed by state law. However, they will not be allowed transport or sell them across state lines. Those who wish to export these species out of the United States may do so from a designated port within their state after acquiring appropriate permits from the Service.

The final rule, supporting documents and questions and answers about this action are located here.


For more information on the injurious wildlife provisions of the Lacey Act, please read this fact sheet.


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About Carol Robidoux 5122 Articles
Journalist and editor of ManchesterInkLink.com, a hyperlocal news and information site for Manchester, NH.