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Coast Forest Region Version 6 Provincial Biogeoclimatic Zones


Variant: CDFmm Coastal Douglas-fir,Moist Maritime
Description: DISTRIBUTION: The CDFmm is restricted to low elevations along southeast Vancouver Island from Bowser to Victoria, the Gulf Islands south of Cortes Island, and a narrow strip along the Sunshine Coast near Halfmoon Bay. Elevational limits range from sea level to approximately 150 m.

CLIMATE: The CDFmm lies in the rainshadow of the Vancouver Island and Olympic mountains resulting in warm, dry summers and mild, wet winters. Growing seasons are very long and feature pronounced water deficits on zonal and drier sites. The CDFmm represents the mildest climate in Canada.

VEGETATION: Forests on zonal sites are dominated by Fd, as well as Bg and Cw. The understorey is dominated by salal, dull Oregongrape, ocean-spray, and Kindbergia oregana. Less prominent species include baldhip rose, snowberry, western trumpet honeysuckle, vanillaleaf, and Rhytidiadelphus triquetrus. Drier sites are characterized by the presence of Garry oak and arbutus, as well as numerous members of the lily family.


Area (Ha): 889922.77  
TEM Area (Ha): 404.09  
% of Prov BEC w/ TEM: 0.05  
  For lists of red and blue listed communities and species in this subzone, please search within the Ministry of Environment's BC Species and Ecosystems Explorer
Further Links:
  1. Download Special Report Series 6 [Chapter 5] in PDF Format
  2. The Ecology of the Coastal Douglas-fir Zone - Brochure 30
  3. A Field Guide to Site Identification and Interpretation for the Vancouver Forest Region
  4. TEM Website