Thank you for the stunning photographs. I enjoyed reading about the colors of the trees and why and how they occur. Thank you for permitting those of us quarantined at home to see the beauty of fall. The Eastern Sierra are such a special place. You are welcome, Margaret. Thank you for reading the article and your kind words. I am glad you have experienced the Eastern Sierra. I think it is one of the most stunning landscapes in North America.
Thank you Ed, for this article and the beautiful pictures. One by one, they are superb, and the blog is very informative. Never knew why some trees turn red maybe one year and not the next. I hope you stay healthy and wish you the best for the season and New Year. Looking forward to another workshop, maybe??? Corry, it is great to hear from you. I will begin doing some private tours soon, social distancing where each client drives in their own vehicles, no indoor sessions during the workshop, and masks required.
I will let those who subscribe to my mailing list know in advance of when this will happen. Stay safe, and I hope you are able to get out and enjoy nature during these challenging times. Hello, Thank you for this excellent post. I have shared it with my Wenatchee Washington readers. Thank you, Susan. I hope you are seeing some great fall colors. This year in the southern Rocky Mountains and San Juan Mountains there was a good show of red aspens. Your email address will not be published.
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More than yellow! Chlorophyll — Green Leaf. Carotene — Yellow Leaf. Anthocyanin — Red Leaf. Follow In Light of Nature. Early notification of future photography workshops? Lynn Reply. Corry Reply. I have shared it with my Wenatchee Washington readers Reply. Leave a Reply Want to join the discussion? Feel free to contribute! And, of course, along with them migrated their insect 'enemies' too.
Thus the war for survival continued there uninterrupted. In Europe, on the other hand, the mountains — the Alps and their lateral branches — reach from east to west, and therefore no protected areas were created. Many tree species that did not survive the severe cold died, and with them the insects that depended on them for survival. At the end of the repeated ice ages, most tree species that had survived in Europe had no need to cope with many of the insects that had become extinct, and therefore no longer had to expend efforts on producing red warning leaves.
According to the scientists, evidence supporting this theory can be found in the dwarf shrubs that grow in Scandinavia, which still color their leaves red in autumn. Unlike trees, dwarf shrubs have managed to survive the ice ages under a layer of snow that covered them and protected them from the extreme condition above. Under the blanket of snow, the insects that fed off the shrubs were also protected — so the battle with insects continued in these plants, making it necessary for them to color their leaves red.
Materials provided by University of Haifa. Note: Content may be edited for style and length. Science News. Story Source: Materials provided by University of Haifa. ScienceDaily, 17 August University of Haifa. Retrieved November 10, from www. But it turns out that the beauty of those leaves could be skin-deep -- and that's a good thing.
Most anthocyanins are produced in the autumn, in response to bright light and excess plant sugars within leaf cells. Carotenoids are responsible for the yellows, golds, oranges and browns in both leaves and in corn, carrots, bananas, and buttercups.
Anthocyanins give cranberries, plums, cherries, blueberries, and strawberries their distinct hues. Though more anecdotal than scientific, we DO think that the Aspen leaves at camp have more sugars in them than they normally would at this point in the fall because of both the late rains and the very warm days.
Additionally, because of the late rains, the Aspen seem to be a little behind schedule…. It is almost as though the trees are celebrating this gorgeous end of summer and early fall—and trying to postpone the inevitable long, cold winter days ahead.
We hope YOU will continue the celebration with us as we post more fall photos on our Facebook and Instagram pages. Together, we will virtually enjoy these beautiful fall days and, if you are in the area, come on up for a visit…the Aspen will be blazing the trail home.
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