ANTH 225 Lecture Notes - Lecture 11: Evolutionary Arms Race, Homo Heidelbergensis, Rela
25 Oct 2016
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Document Summary
Global shifts in climate cause environmental shifts, which in turn cause evolutionary shifts. Population level competition is more significant than external environmental factors. Significant faunal turnover events coincide with periods of global climatic change. Significant global climatic changes occurred 2. 5, 1. 8, and 0. 9 mya. These coincide with the appearance of the robust australopiths, h. erectus, and h. heidelbergensis. Ecology the study of the interactions of organisms with one another and their environment. Key-indicator species animal species with very particular habitat requirements. The ecology of modern organisms is used to interpret the ecology of ancient and extinct closest relatives. Difficult when trying to interpret ecology of extinct ancestors. How an animals dental and skeletal morphology relate to its environment and ecology. Folivores tend to have a long, narrow scratches. Frugivores tend to have pitted teeth (more pits on hard object feeders)
