In relation to the stability hypothesis of diversity,which area provides the best evidence that glaciation reduced temperate tree diversity?

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Europe provides the best evidence that glaciation reduced temperate tree diversity. During the last glacial maximum, Europe experienced a significant loss of forest cover and reduced species diversity, particularly in deciduous tree species. This is supported by fossil pollen records and genetic studies of extant tree populations. In contrast, North America and Asia were less affected by glaciation and have higher levels of temperate tree diversity. Russia is not a significant source of evidence in this regard.

In Relation to the Stability Hypothesis of Diversity,which Area Provides