On May 18, 1980, Mount St. Helens experienced a major eruption that had devastating effects on the ocal ecosystem. Prior to the eruption, the mountain had a series of earthquakes and steam-venting episodes, causing an injection of magma at shallow depths of the mountain on the north side. This esulted in the north side of the mountain giving way, allowing lava and rock to explode northwards owards Spirit Lake and beyond. This leveled about 600 square kilometers (235 square miles) of fores (a) Identify and explain the type of succession that occurred after the eruption. (b) Describe what the community structure might look like one year after the eruption and today. (c) By 1989, the Mt. St. Helens ecosystem had started to really take off. Describe the species diversity the community. (d) Predict the Mt. St. Helens community after 2004. Justify your response.

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