Phenology (FALL/SEASONS) with Libby Ellwood
Ologies with Alie Ward
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What's a Phenophase?
Phenophase is an observable stage in the annual life cycle of a plant or animal that can be defined by a start and end point. It has to do with chemical changes in the leaf that are probably mostly impacted by the changing levels of light. A tree will be able to sense that the light levels are changing, that it's getting lighter later and darker earlier. That will be a sign for them to start making chlorophyll. As the chlorophyll amount concentration decreases in the leaf, it'll be less green. And therefore, the other colors that are naturally in the leaf will become more visible and more vibrant.
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