Annual cycles of changing daylength are important cues that influence many animals. Photoperiodism is the scientific term for the responses of organisms to the relative length of day and night. Such responses allow animals to synchronize their behavior with favorable environmental conditions, which leads to greater survival and reproductive success. Many animals respond both behaviorally and physiologically to changes in daylength, which regulates seasonal activities including migration, reproduction, molting, and hibernation.
Animals must begin migration before conditions have deteriorated where they are, or they will miss the optimal conditions at their destination. Photoperiodic changes not only cue animals to depart but also influence physiological changes that prepare them for extended travel, such as the accumulation of fat and changes in muscle mass.
Karen B. London, Ph.D. is a Certified Applied Animal Behaviorist, Certified Professional Dog Trainer, and an author of seven books about animals, including Treat Everyone Like a Dog: How a Dog Trainer’s World View Can Improve Your Life.
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The Flagstaff Police Department and Coconino County Sheriff's Office would like to make the following sex offender notifications: Read moreSex offender notification
