Glacier Bay in Alaska Is a Fjord Whose Lowlands Were

question 50

Multiple Choice

Glacier Bay in Alaska is a fjord whose lowlands were covered by glacial ice until around 230 years ago. As the glacier retreated, it left behind sediment that was exposed to plant colonization; remarkably (and fortunately for generations of ecologists) , the location of the tip of the retreating glacier has been frequently documented since the late 1700s. This means that scientists have been able to develop a detailed timeline of the changes in the plant community, or _____ in Glacier Bay over time.

• A)ecological succession
• B)niche diversification
• C)niche divergence
• D)competitive exclusion
• E)None of the answer options is correct.

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