background

synopsis of topic

For this topic we will focus on current status of local beaver population and the stream environment.  Lectures include:

• Past, current, & future beaver populations.
• Limiting factors for beaver:
  • Overview of Population Regulation for Beaver
  • Hydrology/Plumbing
  • Predation
  • Metapopulation Dynamics
  • Interspecific competition with grazers
  • Human Interactions
• Assesing limiting factors and potential with population models: an example
• Inventory of physical potential for restoration

Physical Mapping

Joe assessing beaver dam site at Bridge Creek

why we're covering it

ItThe outcome of conservation and restoration efforts are highly dependent on past and current conditions.  An awareness of these conditions and how to evaluate them will improve the likelihood that these efforts are successful.   ​

learning outcomes

​A working understanding of considerations in restoration designs using beaver;

• An introduction of how to develop dynamic designs utilizing beaver

resources

slides & handouts

Choose Workshop for Slides:

• 2011 ICRRR
• 2012 ICRRR
• 2012 UWCC

 Relevant or Cited LiteratureCompatibility with Ungulate Browsing

• Hood, G. A. and S. E. Bayley (2009). "A comparison of riparian plant community response to herbivory by beavers (Castor canadensis) and ungulates in Canada's boreal mixed-wood forest." Forest Ecology and Management 258(9): 1979-1989.
• Grand Canyon Trust. 2011. Beaver Habitat Assessment of North Creek - Escalante River Watershed.
• Wolf EC, Cooper DJ and Hobbs NT. 2007. Hydrologic regime and herbivory stabilize an alternative state in yellowstone national park. Ecological Applications. 17(6): 1572-1587. 
  
  

Living With Humans

• Boyles SL and Savitzky BA. 2008. An Analysis of the Efficacy and Comparative Costs of Using Flow Devices to Resolve Conflicts with North American Beavers Along Roadways in the Coastal Plain of Virginia. In: Madon RMTaMB (Editor), Proc. 23rd Vertebr. Pest Conf. UC Davis: Davis, CA, pp. 6.

Population Models

• Adler GH, Reich LM and Tamarin RH. 1984. Demography of the Meadow Jumping Mouse (Zapus hudsonius) in Eastern Massachusetts. American Midland Naturalist. 112(2): 387-391. 
  
  

Relevant LinksHabitat Models for Beaver

• BRAT - Beaver Restoration Assessment Tool

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Living With Beavers

• Living with Beavers - From Beaver Wetlands and Wildlife
• Articles on Beaver Flow Devices (e.g. beaver decievers and Castor Master) - From Beaver Wetlands and Wildlife