Showing 20 posts tagged trees
With soil temperatures along the East Coast now above the mid-60’s, the Brood II cicadas are up and chirping! Check out WNYC/Radiolab’s real-time Cicada Tracker map to see where they have been observed:
The video above is a jaw-droppingly superb look at the rise of the magicicada from its underground lair, their mass ascent to the trees, their monstrous metamorphosis into adults, and their brief mission to avoid being eaten and reproduce…
More cicada stuff:
- Why do these periodic cicadas only pop up ever 13 or 17 years (depending ont he exact brood)? I was a guest on New Hampshire public radio to talk about the evolutionary advantage of prime numbers and enormous populations.
- Illustrated cicada emergence in GIF form!
- Time-lapse video of a Brood XIX cicada emerging
If any of you on the East Coast have photos or video of abandoned shells, climbing juveniles, or chirping adults, I’d love to see them! Tweet me or email them to itsokaytobesmart at gmail dot com.
To know how food is grown — and how to grow it — to know who grows it, how it’s processed and shipped, and how far it might be coming from to get to our plates… we like finding videos that chronicle how these systems happen.
The Perennial Plate is a great resource for not only learning about food’s origins, but how people eat and endeavor in cultures around the world. Chef Daniel Klein and camerawoman Mirra Fine are currently traveling the globe to tell these stories.
MF: For the people of Sri Lanka, the coconut is really a source of life. Not only because it is an ingredient that is found in most Sri Lankan foods, but also because the coconut tree itself, from the trunk to the leaves to the actual nut, is used in non-food elements of their life…
DK: They are selling really every part of the coconut. They are selling the toddy to a toddy producer, they are selling their husks to a rope producer, they are selling the oil to an oil producer, and then they use the coconuts for their own cooking and also to build huts and things like that.
Watch another Perennial Plate video: Lifen Yang’s small farm to table restaurant in Kunming, China, and then spend time on some farms around the globe.
“Magicicada Brood II will make its 17-year appearance when the ground 8” down is a steady 64°F,” reports Radiolab in this excellent Cicada Tracker DIY project page. And why 17 years underground? From Scientific American:
The curious phenomenon of the cicada’s periodical life cycle is the subject of much debate among scientists, who are limited to no small extent by the infrequency of the insect’s visits to the surface. Most agree, however, that climate shifts — notably the rapid warming following the end of the last ice age — have played a role.
There are seven species of periodical cicadas in North America, four bound to a 13-year cycle, three in a 17-year cycle. All are characterized by black and orange bodies, and males woo their mates with species-specific choruses that can be deafening in large numbers.
The genetic similarity of these seven species suggests a common ancestor in the last 8,000 years. And because emergence seems closely linked to soil temperature and moisture, it is likely that climate has played a role in both regulating their life cycles and cueing their appearance.
Cicadas don’t sting or bite. After a few weeks making noise up in the trees (measured at 94 decibles), eggs will be laid and will hatch. After feeding on sap, these hatchlings will drop down to burrow and live underground, next seen in the year 2030.