Primary Succession: Begins where no life existed before, Ecosystem created from bare rock, Pioneer species is lichens and moss, Would occur when a volcanic island is establishing its first ecosystem, Secondary Succession: Occurs after a disturbance in an existing ecosystem, Rebuilding an existing ecosystem with soil present, Pioneer species is grasses and weeds, Would occur after a devastating forest fire,

Primary vs Secondary Succession

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恢復自動保存: ?