North Saanich’s Garry Oak Ecosystems Are Among the Rarest on Earth. Here Is Why That Matters.
Garry oak ecosystems (also known as Prairie-Oak meadows or Coastal Oak ecosystems) are one of the defining natural features of North Saanich and among the rarest ecological environments on earth. Garry oak trees and the ecosystems they support exist within a distinctive near-Mediterranean climate shaped by the rainshadow of surrounding mountains, producing dry summers, moderate temperatures and a landscape that is a mosaic of woodlands, meadows, grasslands, and open rocky areas. Found across the territory of the Coast Salish peoples, from Vancouver Island across the Salish Sea to Washington State, these ecosystems reach their peak of colour in spring before the summer dry period sets in. They support over 800 insects including more than 250 species of native bees, along with birds, mammals, reptiles and amphibians. Less than 5% of Garry Oak systems remain in near-natural condition across Canada, with more than 100 species now officially listed as at risk.
The loss in North Saanich is staggering in its scale. In 1800 there were 1,040 hectares of Garry oak meadows here. By 1997, only one hectare remained. Garry oak meadows are sacred cultural landscapes shaped over millennia by Indigenous stewardship through controlled burns that nurtured camas meadows, sustaining food, medicine, ceremony and spiritual connections. North Saanich sits within the Coastal Douglas-fir biogeoclimatic zone, the smallest, most at-risk, and most biologically diverse zone in Canada, and what little remains faces ongoing pressure from development and invasive species. Protecting what is left is not a niche environmental concern. It is one of the most urgent conservation responsibilities on the entire peninsula.
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