The melting and subsequent retreat of glaciers is a long process that may take centuries. Why is something so slow considered an extreme disturbance?
They leave behind bare rock with no established ecosystem
They strip away trees and destroy everything as they move
They will never grow back after they melt
They move giant boulders and change the physical shape of the landscape
They leave behind bare rock with no established ecosystem.
They strip away trees and destroy everything as they move.
They move giant boulders and change the physical shape of the landscape.