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Click on a world region to learn more about the global spread of nutria. |
Jacoby Carter
USGS National Wetlands Research Center, 700 Cajundome Blvd., Lafayette, La. 70506
The large semiaquatic rodent, the nutria (Myocastor coypus), also called
coypu, has been introduced from South America to every continent except Australia
and Antarctica. Although the nutria is perceived as a pest species in many regions
because its feeding activity may destroy marsh vegetation and damage water control
structures and crops, it is considered a valuable furbearing resource in some
regions. The distribution of nutria outside its home range in South America
is mainly the result of attempts to breed it for its fur. In favorable habitats
nutria have often escaped and become feral. In some countries nutria have been
deliberately released and managed in a semicaptive state, meaning they are not
caged but placed in areas where the habitat is intensely managed for their benefit.
In other countries escaped nutria have not survived in the wild. After assessing
the economic and environmental burden that uncontrolled wild nutria have placed
on their societies, some countries have labeled it a pest species and attempted
to eradicate it. This map provides links to regional and national summaries
of nutria introduction, distribution, control, and eradication. For methods
about the collection of data used to create this map, see Carter, J. and Leonard,
B.P., 2002, A review of the literature on the worldwide distribution, spread
of, and efforts to eradicate the coypu (Myocastor coypus): Wildlife
Society Bulletin, v.30, no.1, p. 162-175. The data on nutria distribution presented
in Carter and Leonard (2002) have been updated in these Web pages.
A tanka form poem transliterated from Japanese: The English translation: |
Africa - East Asia - Europe - Central Asia and Middle East - North America - South America