Before revision: A number of recent studies show that several northern regions (above latitudes >45° N) supported low-density boreal and temperate tree populations during the late-glacial or Early Holocene [e.g.
After revision: A number of recent studies indecate that several northern regions (above latitudes >45° N) supported low-density boreal and temperate tree populations during the late-glacial or Early Holocene [e.g.