Why is the CDF at Risk

Why is the CDFCP Region at Risk

treefrog TEThe CDFCP Region is at risk of losing many of the species, relationships, and healthy ecosystems that define it.  Confined to a small area on south eastern Vancouver Island and the Sunshine Coast, the natural ecosystems are competing with human pressures, including development, industrial landscape use, increasing numbers and frequency of invasive species, and increased recreational use. Some of the ecosystems associated with the CDFCP Region, such as Coastal Bluffs, Garry Oak ecocystems, and wetland ecosystems, have lost well over 75% of their former area.

  • The Coastal Douglas-fir biogeoclimatic zone (CDF zone) is the smallest and most at risk zone in BC and is of conservation concern (Biodiversity BC, 2008). 
  • The CDF zone is home to the highest number of species and ecosystems at risk in BC, many of which are ranked globally as imperiled or critically imperiled (BC CDC, 2012). 
  • The global range of the CDF lies almost entirely within BC, underscoring both its global uniqueness and BC’s responsibility for its conservation. 
  • Of all the zones in BC, the CDF has been most altered by human activities.  Less than 1% of the CDF remains in old growth forests (Madrone, 2008) and 49% of the land base has been permanently converted by human activities (Hectares BC, 2010). 
  • The trend of deforestation and urbanization continues and has resulted in a natural area that is now highly fragmented with continuing threats to remaining natural systems. 
  • Approximately 9% of the CDF zone is protected in conservation areas (MFLNRO, 2011). 
  • The extent of disturbance combined with the low level of protection places the ecological integrity of the CDF zone at high risk (Holt, 2007).