Alvars have shallow soil, less than 20cm deep on top of bedrock. With less than 25% tree cover.
There are at least 22 vascular plant species, 4 species of lichens, 5 mosses, 4 reptiles, 7 molluscs and numerous insects found on the alvars of the Bruce Peninsula that are globally or provincially rare.
Publications and Factsheets
CAP: Alvars and Bedrock Fact Sheet
Source: Nature Conservancy Canada