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Background

Declines of woodland caribou are linked to human-caused landscape changes that convert mature forests to early seral stands.

Early seral stands provide abundant forage that support high populations of primary prey (e.g., deer, moose, and elk). 

More primary prey within caribou ranges in turn leads to more predators (e.g., wolves).

Objectives

  1. Determine how timber harvesting regimes and silviculture practices could make cutblocks less favourable for primary prey.
  2. Provide land-use managers with information that can be used to reduce the impacts of timber harvesting on caribou by creating cutblocks less favourable to primary prey.

Methods                           

We will examine primary prey use of cutblocks as a function of cutblock attributes (e.g., site prep, planting, and tending) in west-central Alberta using a combination of data from GPS collars and remote cameras:

  • Collar 20 mule deer and 20 white-tailed deer within four caribou ranges
  • Use 60 remote cameras to monitor cutblock use by moose, elk, and predators

We will use collar and camera data to predict species-specific cutblock use as a function of ecological and silviculture attributes.

Applications

The results of this project can be used by forestry planners to benefit caribou recovery by informing best silviculture practices within caribou ranges, and specifically to identify:

  • Priority areas for restoration activities (i.e., target specific cutblocks associated with high probability of use by primary prey for early restoration).
  • Site prescriptions that are preferred by primary prey based on cutblock data within caribou ranges, and consider these site prescriptions in landscape planning.
  • Site prescriptions that are least favored by primary prey to guide restoration tactics that effectively reduce ungulate habitat within caribou ranges.

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