ANT102H5 Lecture Notes - Lecture 4: Ecological Niche, Allele Frequency, Macroevolution

• School: UTM
• Department: Anthropology
• Course: ANT102H5
• Professor: sherry Fakawuza

Document Summary

Evolutionary anthropology (paleoanthropology: the evolution towards modern humans through fossil remains. Human diversity is seen as the result of microevolutionary forces small changes in allele frequencies acting on the human gene pool: vs macroevolution: appearance of new species due to many generational changes in allele frequencies. Systematics: traditional approach, categorize/compare organisms based on homologous traits. Determine ancestral versus derived (modified) homologous traits to determine lineage. Clade: a group of organisms with a common ancestor: difference: divide up the homologies according to whether they are ancestral derived, derived: modified from ancestral form. Divergent: a single ancestral species and diverge to 2 or more descendant species, physical & social barriers, e. g. wall falls on half of class example. Convergent: two phylogenetically unrelated organisms develop greater similarities, similar environments. Ecological niche: a species way of life considered in the context of its environment (haviland &