Video: What is Phenology?
How does a bear know when it’s time to hibernate? Why do April showers bring May flowers? Plants and animals don't have calendars or watches, but many of them take cues from the changing seasons.
Changes in weather with the seasons, such as temperature and precipitation, signal many organisms to enter new phases of their lives. For example, buds form on plants as temperatures warm in the spring. As temperatures cool in the fall, deciduous trees and shrubs lose their leaves and become dormant. The study of the timing of these changes is called phenology.
In this video, Dr. Paul Alaback introduces us to the science of phenology.