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Ecological effects of beaver habitat abandonment in the Colorado Rockies



Ecological effects of beaver habitat abandonment in the Colorado Rockies



Jour Wildlife Management 21(1): 80-84



Abandonment by beavers of numerous pond sites on Chavez Creek, Saguache County, Colorado, was studied in relation to its effects on vegetative recovery and production, wildlife use, and the physical environment of the sites. Comparison was made to a nearby stream, Nutras Creek, that still supported a large beaver population. Abandonment resulted in nearly complete loss of the aquatic environment in spite of the highly stable glaciated terrain. Trout and aquatic wildlife were abundant on the occupied stream, rare on abandoned sites. Water storage capacity of the abandoned ponds was nil. Vegetative recovery was rapid in drained ponds, which produced more herbaceous vegetation but less browse (Salix spp.) than comparable occupied pond sites.

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Accession: 024523956

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DOI: 10.2307/3797684


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