Knowra Beaver Beaver A large semiaquatic rodent in the genus Castor, native to the Northern Hemisphere. Beavers shape waterways by felling trees and building dams, lodges, and canals.
Beaver dam : A barrier of wood, mud, and vegetation built by beavers across a stream to create or enlarge a pond. Dams raise water levels, protecting entrances and creating habitat around beaver lodges.
North American beaver : Castor canadensis, a beaver species native to North America and introduced in parts of Europe and South America. It is one of the two living species in the genus Castor.
Beaver dam analog : A human-built stream structure designed to imitate some effects of a beaver dam. Restoration projects use these structures to encourage ponding and wetland formation where beavers are absent.
Beaver pond : A body of water formed or enlarged when a beaver dam impounds a stream. Ponds create the aquatic habitat at the center of many beaver-influenced landscapes.
Canadian beaver : A national symbol of Canada, appearing on coins, stamps, and the country's five-cent coin. The animal's place in the fur trade helped make it a durable Canadian emblem.
Beaver lodge : A beaver-built shelter of sticks and mud with underwater entrances and a dry chamber above water. Lodges provide protected living space within the ponds beavers create.
Eurasian beaver : Castor fiber, a beaver species native to Eurasia that was once reduced to scattered populations by hunting. It is the other living species in the genus Castor.
Beaver deceiver : A flow device that lets water pass through a beaver dam while limiting beaver access to the intake. It can reduce flooding without requiring removal of the dam.
Beaver-related wetland : A wetland created or altered by beaver activity, including dams, ponds, and flooded vegetation. Beavers expand wetland area and can sustain habitat mosaics along waterways.
Beaver Wars : A series of seventeenth-century conflicts in northeastern North America involving Indigenous nations and European colonial powers. Competition for beaver-fur trade was a major factor in these conflicts.
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