Pollen preserved within lake sediments can be used to reconstruct historical changes in the geographic ranges of plant species.

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Pollen analysis, also known as palynology, is a commonly used method for reconstructing past changes in vegetation and climate. Pollen grains are very resistant and are often well-preserved in lake sediments, providing a record of the plant species present in the surrounding landscape. By analyzing the types and amounts of pollen in sediment cores from different depths, scientists can identify changes in the geographic ranges of plant species over time.

Pollen Preserved Within Lake Sediments Can Be Used to Reconstruct