Biomes throughout North America
Throughout earth's history various climatic changes have resulted in the migration of vegetation world wide. Approximately 2.5 M years ago a cooling and considerable expansion of glaciers took place. From that point on, throughout the late Pliocene and Pleistocene, the mid-latitude glaciers existed and fluctuated. From the time of the last glacial maximum, approximately 20000 years ago, terrestrial vegetation has undergone numerous shifts to reach its present day state. It is the focus of this museum display to look at these significant shifts, and to discuss the mechanisms by which they occur.
The following topics will be discussed:
Factors Affecting Rate of Migration
Different Rates For Different Species
Response Time of Vegetation
Evidence for Vegetation Migration
TO HOOPER MUSEUM