CHDV 23249 Lecture Notes - Lecture 19: Lunar Phase
20 Feb 2017
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Document Summary
Crickets have an internal mechanism that acts independently of cues from the environment. Crickets regulate their behavior based on change in light intensity. Conclusion: crickets have an internal mechanism that is reset, or entertained, by the light environment. Circadian rhythm can be entertained by exposure to external cues. Has a period of approximately 24 hours in the absence of external cues. Exhibits temperature compensation (temperature affects the kinetics of cellular processes) Per gene and per protein sleep disorders in humans . External cues for long-term cycles: photoperiod lunar cycle. Why do animals migrate: seasonal food availability, seasonal water availability, seasonal weather changes.
