Why Leaves Change Colors in the Fall
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- Опубліковано 22 жов 2023
- The fall season is thoroughly upon us now! Many places are at or reaching peak fall colors, and before we know it, the fall colors will all be gone. But not before we bare witness to one of nature's great spectacles. An art show put on around the world for millions to see. It's truly something special. And for this episode, I wanted to dive into the science behind it all. To answer the question: why DO leaves change colors in the fall? What are the signals and cues and feedback loops that plants receive that cause them to put on this coordinated chromatic display ? We dive into it all. Enjoy!
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Sources and Resources:
• Why Do Leaves Change C...
• There's One Thing Abou...
• The Real Reason Leaves...
www.fs.usda.gov/visit/fall-co...
www.compoundchem.com/2014/09/...
www.npr.org/2009/10/30/114288...
Images and Music:
Storyblocks
Wikimedia Commons/Zephyris
Gabi Slizewska
Andy Brunning/Compound Interest 2023 - Розваги
Southern Live Oak trees are evergreen and don't have needles. They have very typical-looking leaves. Some Magnolia trees are also evergreen. Not all evergreens are the needled kind.
There are many evergreen oaks, manzanitas, and other broadleaf evergreens here in the Southwestern U.S. as well. There are many evergreen trees that aren’t conifers (ie hollies, eucalyptus, citrus, madrones, olives, etc)
This fits the channel perfectly ! Where I am from, we have our own festivities in October but there's nothing like the fall colours 🍂🍁 or stuff like Halloween 🎃🦇 so UA-cam is the only place where I get to enjoy this stuff
Oh man! Well, I'm glad I could bring you this little slice of fall! Thanks for watching!
Nice to see a deeper dive on this that doesn’t overcomplicate things. Until now all I knew was “leaf no have chlorophyll so no green so now other color show”
Also there’s nothing like a Wisconsin fall, with the vibrant colors one week followed by burnt colors the next, the autumn farms and corn mazes everywhere, the harvest culture. Though I am a bit bias.
Glad you like it, thanks for watching! Have yet to make it out that way, but I've heard lots of good things about the parks there, so I'll have to make the trip one of these days.
Absolutely facilitating! I love this channel. Thank You for the information in this short lecture so we can understand and appreciate ❤
Thanks so much for watching!
Northern NH on the border with Maine holds a special spot in my heart (remote camping on Lake Umbagog and hiking the near by mountains)
Oh man, one of these days I'm going to make it up to see the NE in the fall. Bucket list item for me!
Acadia National Park in Maine- one of my favorite places to visit for Fall colors!
A classic!
Excellent video! Seriously. Great job.
Thanks so much!
my favorite fall views are around cedar city, utah as its really the first time i've been able to see great fall colors, of course that is thanks mostly to the aspens, which are so beautiful. the maples and cottonwoods around here are also quite nice, especially all of these falls colors contrasted on the red rocks make it even better
I absolutely love the aspens in fall. Was in RMNP last year at the end of September and they were just showing off. Western Fall is different, but still so gorgeous.
Went to Holland, MI yesterday and saw some beautiful parks/ forest preserves. Heading down to Garden of The Gods in Southern' IL and I am excited. I've never gotten a chance to travel in this season.
Very nice, enjoy your trip!
Thank you for the awesome content and all the amazing videos!!!!
Thanks for watching!
We don’t have any National Parks near us in Western New York but we do have Letchworth State Park which is pretty awesome and better that some National Parks we’ve visited. It’s a beautiful place to visit any time of year.
Parks or not, I bet Western NY has some GREAT colors!
I have been going to the Allegheny National Forest in the fall for 55 years near the Kinzua Dam in Warren, PA. Have taken my kids there and now they camp there with my grandchildren. Beautiful spot!
Have heard so many good things about Allegheny! Gonna have to make the trip one of these days.
Very interesting and thanks for sharing! Excellent explanation! Nature is truly magical🍂🌲🍁
Thanks for watching!
I'm from Central New Jersey and always enjoyed fall colors along with the Pines.
Here in Ferndale, WA, we have deciduous trees ,but there are more Fir and giant pine related ones.
This is, after all THE Evergreen State.
Cheers,
Rik Spector
Thanks for sharing Rik!
My favorite place in the world to see fall colors is Zion National Park in Utah. The contrast of the blue-green evergreen live oaks, lime green evergreen manzanitas, vibrant red maples, yellow cottonwoods, and fire orange deciduous oaks is just magical. Of course the beautiful blue green yuccas, and prickly pear cacti loaded with fruit dotted throughout make it even better. And all of that with vibrant orange sandstone mesas as a backdrop!
So many colors! Totally agreed on all the contrasting colors - not just the leaves, but everything in the landscape playing off one another and creating this just unbelievable natural mosaic. Good stuff!
The leafs in eastern Kentucky right now are gorgeous
I bet! Great colors there!
Thanks for posting!!!
Thanks for watching!
@@NationalParkDiaries you’re very welcome!
"The spice is flowing" I see what you did there
😊
@@NationalParkDiaries⏳⏳⏳⏳⏳
Here in Texas, we have little color to see anywhere but we do have places to see a few Big Tooth maples in a few parks, they appear in Big Bend, Guadalupe National Parks and a state park in the center of the state called Lost Maples State Park. Since we don't have many places to see color in leaves these are special places for me. Big Tooth maples have the anthocyanins for reds. We were driving in Utah north of SLC and saw hillsides covered in reds and much of the color is from these maples so they do appear in large numbers outside of Texas.
Does Eastern Texas have better fall colors? Never been there during the fall, but it's more forested right? Either way, glad you have other parks to appreciate the fall colors!
No East Texas doesn't have colorful trees, at least near us. Mostly the leaves turn brown and fall off.
@@NationalParkDiaries
The pumpkin spice must flow!
🙌👆
Amen, Smokies, although when I can't go....either Brown County State Park in Indiana will give a run for the money and close to home, a quick jolt of Fall color at Lincoln Boyhood Home.
I visited Lincoln Boyhood last year, although it was in the middle of summer lol. Still, great park!
Which would be the best national parks to do some leaf-viewing? I think that does seem to be a pertinent question here :)
For me, I love Great Smoky Mountains National Park, but the Blue Ridge Parkway and the Appalachian Trail are also both excellent. Shenandoah is going to have great colors as well. I live near Congaree and it also has great colors, albeit they come a little later in the season. Out West, you'll never go wrong with any park where you can see the Aspens - I was in Rocky Mountain NP last year at the end of September and it was great. Those are just the ones I've visited though, so I can't speak for all of them!
Hey! Can you do a video on Mackinac Island, America’s second National Park?
Super interesting topic - great suggestion! Should have something out about it soon, but it won't be a full episode. Gonna save that for the future when I can travel there!
Then there’s the tamarack. Looks like an evergreen but loses its needles in the fall/winter.
The spice is flowing. On earth or on Arrakis?
Why not both??
I forgot exactly what it is but do you know what it is with taking a pine needle to taste how sweet or sour it is?
I've never heard of that actually!
Is it mainly connected to "amount of sunlight ☀️" or does decreasing temperatures also play a role in this system? Just curious
Temps can play a role, but decreasing sunlight as the days grow shorter is the major driver. For the plants, this is a variable that doesn't change a whole lot year to year and is easier to "plan" for.
@@NationalParkDiaries You are totally spot on. It just makes me curious about how the plants that are in locations where they are extra shaded or the landscape obscures when the sunlight drops to the point where the sun sets much earlier in those spots than everywhere else around there.. that's why I wondered if the connection between sunlight and temp could play a role?
That's a great point. And, to be honest, I don't know about that specific scenario. It make sense to me that other factors would come in to play there, but I can't say for certain. Good question!
Oddly enough Guadalupe Mountains NP
Huh! Wasn't expecting that, but I can believe it. Thanks!
I don't be-leaf it!
Well done.
...my pot turned purple.
They took all the trees
And put them in a mausoleum
Then charged the people
An arm and a leg just to see 'em
@ aprox 4 minutes he begins to answer the question....
cheat sheet: reduced sun light and temps.