ARCH 1030 Lecture Notes - Lecture 5: Brachiation, Old World Monkey, Ape
25 Feb 2017
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Macroevolution: first part of chapter 6, to understand how primates evolved, we must first look at how the evolutionary forces (discussed last class) can lead to macroevolutionary change. Microevolution: changes in allele frequencies of population. Macroevolution: focusses on formation of new species and on the evolutionary relationships among species, speciation. Suggests that populations naturally change or evolve over time. A model of macroevolutionary change that suggests evolution occurs via long periods of stability or stasis punctuated by periods of rapid change: adaptation, stasis, extinction. Species interdependence in evolution: evolutionary processes are dependent on interactions between species. As fitness increases in one system, it will decrease in another. Taxonomy: homo sapiens: kingdom: anamalia, phylum: chordata, class: mammalia, order: primates, family: hominidae, genus: homo, species: sapiens. Primate taxonomy: option 1: order: primates, suborder: prosimii. Primate taxonomy: option 2: order: primates, suborder: strephsirhini, suborder: haplorhini. Diet-related traits: unspecialized dentition, reduction in number and size of incisors and premolars.
