ESPM 152 Lecture Notes - Lecture 3: Background Extinction Rate

• School: Berkeley
• Department: Environmental Science, Policy, And Management
• Course: ESPM 152
• Professor: Erica Rosenblum

Document Summary

1/24 background extinction rate : standard any- term avq rate of ext in bio. !history mass extinctions : rapid, affect more life have been 5 take ( ted diff proportions of lik over 751. sp . lost evolutionary radiations : speciation and extinction rate " have always varied a biotic cases. : pred . loss hey innor ex ( of of land by plants ex : dino extinction radiation of mammals. Human ewl : chimps tbonobos are our sister. Share common ancestor w/ each group early sp . notatways our direct ancestors humans + neanderthals. Prediction: less dna our time high ancestry in europe. Over time the ant of neanderthal dna in gnomes dreamed in eurasians from 4-21. Could be selected against neanderthals shared some natural solution.