The American Chestnut's fight for survival

Podobni Video posnetki:
Ice Kingdom | Iceland Jökulsárlón
Jokulsarlon is one of Iceland's natural crown jewels.Jokulsarlon Glacier Lagoon ...
Landing carousel show Full | Prague International Airport
A four-year-old video I found in the archive shows traffic at Václav Havel Inter...
Time Lapse | Foggy morning in my city | PRAGUE
Foggy Sunday morning today in Prague from the window of our apartment. Timelapse...
Large circuit around the island | Iceland
A big circuit around Iceland in June 2022. Of course, the video does not include...
Midnight sun ICELAND Time-Lapse
Timelapse of the midnight sun at the northernmost point of Iceland in 4K.Časosb...
Opis:
While hiking on the Appalachian Trail in Shenandoah National Park I am confronted with fight of the American Chestnut (Castanea dentata) for survival. The chestnut blight (Cryphonectria parasitica) destroyed forty billion trees that had towered over eastern forests for 40 million years in a mere forty years. The tree, while 'functionally' extinct continues to sprout from root stocks that maybe over a hundred or more years old. Walk with me through the Appalachian forest as I show you how to recognize these trees that sprout up but are killed by the blight before they can reproduce. I explain the history of this tree and how its loss caused a profound impact on the peoples of the Appalachians. I conclude with a visit to the largest native chestnut tree I have ever seen in my life that is actually a few hundred yards from my home. I end with a discussion of the 3 prongs of research that are moving toward restoring this iconic tree to its original range.