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The geomorphic influences of beaver dams and failures of beaver dams

Dams and geomorphology. Special issue

Auteurs :
BUTLER, D.R.
MALANSON, G.P.
BEYER, P.J.

Description :
The AA. examine the zoogeomorphological influences of the construction of beaver dams. They restrict their discussion to North America and the species C. canadensis. Removal of beavers by overtrapping in the 16th-19th centuries severely reduced their number and the number of ponds and dams. Partial recovery of beaver populations in the 20 th century has allowed reoccupation of the entirety of the pre-contact range, but at densities of only one-tenth the numbers. During the past 20 years, numerous cases of dams failure have been documented that resulted in outburst floods.


Type de document :
Article de monographie

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 2005, vol. 71, n°. 1-2, p. 48-60, nombre de pages : 13, Collation : Illustration, Références bibliographiques : 45 ref.

Date :
2005

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier

Langue :
Anglais
Droits :
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