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Pleistocene Extinction
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Effects
- Migration differences
- Shifts of food chain
- Climate change
- New species
- Changed Food Chain
Extinct Life & New Life
- The old food chain was destroyed and a new form arises.
The Pleistocene Extinction
Before;
- higher variety of mammals were alive before
- Wild life was flourishing
- The food chain was different
The Pleistocene Extinction
During;
"Approximately 11,000 years ago a variety of animals went extinct across North America. These were mostly mammals larger than approximately 44 kg (about 100 pounds)." - Illinois State Museum
Examples;
- Saber-teethed cats
- Mammoths
- Giant beavers
Causes
Selection
Decline of animals
Increase of Humans
The species that went extinct made more room for newer species and to allow Humans to 'take over' to so to speak
The Pleistocene Extinction
After
- 3/4 of the large ice age animals died out (wooly mammoths, mastodons, saber-toothed tigers, and giant bears)
- The food chain changed drastically
Extra Information
"The name Pleistocene is the combination of two Greek words: pleistos- (meaning “most”) and kainos- (meaning “new” or “recent”). It was first used in 1839 by Sir Charles Lyell, a British geologist and lawyer." -livescience.com
Citations
Pleistocene Extinction
http://exhibits.museum.state.il.us/exhibits/larson/lp_extinction.html
http://web.stanford.edu/group/journal/cgi-bin/wordpress/wp-content/uploads/2012/09/Gibbons_NatSci_2004.pdf
http://www.livescience.com/40311-pleistocene-epoch.html