How These Trees Reach 400 Feet

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Ever wonder how Redwoods get so tall? Look no further.

The Coastal Redwood (Sequoia Sempervirens) is the tallest tree species in the world, the largest individual being 379.7 feet (115.7 m) tall. How do these trees reach this enormous height? A clue is given in their name, COASTAL. These giants can only be found in a 450 mile stretch along the California coast, and that is because their existence is strongly tied to the presence of marine fog. Fog slows down water loss for these trees by reducing heat in the summertime, allowing them to grow non-stop. Fog water can either be absorbed straight into the leaf or condense to form droplets and rain down to the soil, benefiting Redwoods and other organisms. In today's video, we explore what other mechanisms are tied to Redwood height and how fog affects not only the trees but the entire ecosystem.


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Gear list

Film:
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00:29 Intro
00:41 Opening
01:11 Understanding water movement
01:39 Transpiration, gas exchange, water movement
02:57 Secret #1: Irregular stomata
04:33 Secret #2: Fog
06:10 Secret #3: Upwelling
07:33 How fog is made
09:05 Final thoughts