10-27_CultureIsAdaptation_3_-_6

10-27_CultureIsAdaptation_3_-_6 - Culture is an Adaptation...

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1 Culture is an Adaptation Why study adaptations Culture is derived Why culture is adaptive How (possibly) culture evolved Two more forces of cultural evolution Culture is an Adaptation Why study adaptations Culture is derived Why culture is adaptive How (possibly) culture evolved Two more forces of cultural evolution The world’s climate has become colder and more variable Cooler and drier Spread of grasslands Most ape species go extinct Replaced by monkeys 18–2 mya History of the human lineage. 0 4 6 2 Millions of Years Ago Chimpanzees Modern humans Australopithecines Bipedal locomotion Otherwise ape-like Small brains No tools Rapid development Sexually dimorphic Ardipithecus Plio-Pleistocene climates show cooling and increased variability. Warmer Colder (Redrawn from Opdyke 1995 & NGRIP 2004) History of the human lineage. 0 4 6 2 Modern humans Australopithecines Early Homo But, no cultural adaptation Restricted range No symbolic behavior Very simple tools Little variation in space or time
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2 Ice cores from Greenland provide detailed picture of climate over last 120,000 years. NGRIP, GRIP and GISP cores drilled Greenland Ice Sheet provide picture of climate for last 120 kyrs 18 O/ 16 O ratio gives indication of past temperatures Ca + gives indication of dust, aridity Very long cores (~ 3000 m) provide high resolution over long time period At top: 3,000 yr BP, ~ 1 month At bottom: 160 kyrBP, ~ 10 years Middle and Upper Pleistocene climates show large changes in short time periods.
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This note was uploaded on 10/31/2011 for the course ANTHRO 186P taught by Professor Boyd during the Fall '09 term at UCLA.

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10-27_CultureIsAdaptation_3_-_6 - Culture is an Adaptation...

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