pdf 15 Muskrat Habitat Suitability Popular

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Muskrat suitability was classified in a GIS by:

  • Selecting waterbodies greater than 10000m2 (assumed

    this is the minimum size at which ponds are deep enough to avoid complete freezing over winter; also represents the minimum size of waterbodies selected by muskrats in previous YG muskrat habitat surveys).

  • Calculating the % cover of herbaceous vegetation within a 50m buffer surrounding suitably-sized waterbodies (assumed the presence of herbaceous species surrounding the waterbodies was positively related to the presence of herbaceous species within the waterbody).

  • Suitable waterbodies were ranked as follows (probability of muskrat occurrence): <10% cover (none), 10-30% cover (low), 30-50% cover (moderate), >50% cover (high). 

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