MinuteEarth

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The human lifespan might be limited, in part, because natural selection just stops working late in life.

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Video Keywords:
Mortality plateau: the leveling out of the mortality rate that is observed at late ages in various species
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Credits (Twitter handles):
Script Writer: Kate Yoshida (@KateYoshida)
Script Editor: Alex Reich and David Goldenberg
Video Illustrator: Arcadi Garcia Rius
Video Director: David Goldenberg and Emily Elert
Video Narrator: Emily Elert (@eelert)
With Contributions From: Henry Reich, Alex Reich, Ever Salazar, Peter Reich
Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder
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References:

De Grey, A (Sept 2016, personal communication)

Horiuchi S, Wilmoth JR (1998) Deceleration in the Age Pattern of Mortality at Older Ages. Demography 35: 4. https://link.springer.com/article/10....

Mueller, LD, Rose MR (1996) Evolutionary theory predicts late-life mortality plateaus. PNAS 26:15249-15253. https://doi.org/10.1073/pnas.93.26.15249

Rose MR, Rauser CL, Mueller LD, Benford G. (2006) A revolution for aging research. Biogerontology 7:269-77. https://www.ncbi.nlm.nih.gov/pubmed/1...

Rose, MR, Flatt, T, Graves, JL, Greer, L, Martinez, DE, Matos, MM, Mueller, LD, Shmookler Reis, RJ, and P. Shahrestani. 2012. What is aging? Frontiers in Genetics 3:134. https://www.frontiersin.org/articles/...

Rose, M. (Sept 2016, personal communication)

Direct download: How_Long_Can_We_Live.mp4
Category:general -- posted at: 5:15pm EDT

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Every once in a while, all the oaks or spruces or other plants in a region suddenly produce a tremendous bounty of seeds – up to 100 times more than usual. But why do they do it, and how do they all manage to sync up?
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To learn more about mast seeding, start your googling with these keywords:

Mast Year: A year in which all the plants of a particular species in a region ramp up their seed production.

Predator Satiation Hypothesis: The hypothesis that mast seeding is a strategy plants use for controlling the population of squirrels and other seed-eating animals.
___________________________________________


Subscribe to MinuteEarth on YouTube: http://goo.gl/EpIDGd
Support us on Patreon: https://goo.gl/ZVgLQZ
And visit our website: https://www.minuteearth.com/

Say hello on Facebook: http://goo.gl/FpAvo6
And Twitter: http://goo.gl/Y1aWVC

And download our videos on itunes: https://goo.gl/sfwS6n
___________________________________________

Credits (and Twitter handles):
Script Writer: Emily Elert (@eelert)
Script Editor: Alex Reich (@alexhreich)
Video Illustrator: Ever Salazar (@eversalazar)
Video Director: Alex Reich (@alexhreich)
Video Narrator: Emily Elert (@eelert)
With Contributions From: Henry Reich, Kate Yoshida, Peter Reich, David Goldenberg
Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder
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References:

Fletcher, Quinn E., Stan Boutin, Jeffrey E. Lane, Jalene M. LaMontagne, Andrew G. McAdam, Charles J. Krebs, and Murray M. Humphries. 2010. “The Functional Response of a Hoarding Seed Predator to Mast Seeding.” Ecology 91 (9): 2673–83.

Kelly, Dave, and Victoria L. Sork. 2002. “Mast Seeding in Perennial Plants: Why, How, Where?” Annual Review of Ecology and Systematics 33 (1). Annual Reviews: 427–47.

Kelly, D. 1994. “The Evolutionary Ecology of Mast Seeding.” Trends in Ecology & Evolution 9 (12): 465–70.

LaMontagne, J. 2018. Personal Communication.

Direct download: When_Trees_Go_Nuts.mp4
Category:general -- posted at: 5:02pm EDT

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