The Mountain Beaver (Aplodontia rufa) is a semi-fossorial rodent limited in range to the Pacific Northwest states and British Columbia (B.C.). It was designated as Special Concern by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) because its range has decreased following habitat destruction through forestry and urbanization. It is listed as Special Concern in Canada on Schedule 1 of the Species at Risk Act (SARA). Based on recent genetic analyses the two previously recognized subspecies (A. rufa rufa and A. rufa rainieri) have been combined into one northern subspecies (A. rufa olympica). Mountain Beaver is ranked S3 (special concern) by the Conservation Data Centre and is on the provincial Blue list. The B.C. Conservation Framework ranks the Mountain Beaver as a priority 1 or 21 under goal 2 (prevent species and ecosystems from becoming at risk)....
Threats to this species are habitat destruction through soil compaction and disturbance by heavy machinery during forestry activities and urbanization (including road building) for locations in the lower Fraser Valley.
The management goal is to maintain the current distribution of all subpopulations in B.C., and to maintain or improve the current abundance of each Mountain Beaver subpopulation in B.C.
The following are the management objectives:
1. To protect and/or maintain Mountain Beaver habitat within its occupied range.
2. To assess and mitigate the impacts of ongoing threats, particularly timber harvest/silviculture, and residential urban development and road building.
3. To address identified key knowledge gaps for Mountain Beaver including population abundance, locations of suitable habitat, and population viability.
Ministry of Environment. 2013. Management Plan for the Mountain Beaver (Aplodontia rufa) in British Columbia. Province of BC
Scientific Name: Aplodontia rufa
English Name: Mountain Beaver
Other Identifier: QL737.R626 M36 2013/333.95'935/C2013-980006-9
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