BISC 316 Lecture Notes - Evolutionary Taxonomy, Phenetics, Carl Linnaeus

• School: Simon Fraser University
• Department: Biological Sciences
• Course: BISC 316
• Professor: Tammy Mc Mullan

Document Summary

Lecture 2 bisc 316 vertebrate biology summer 2011. Classification = grouping of organisms taxonomy = the naming and classification of species phylogeny = the evolutionary history of a species or group of related species systematics = the study of biological diversity in an evolutionary context. Why are we concerned with the classification of. Species: the basic unit; a group of naturally interbreeding populations that are genetically isolated from other groups. Rules for classification: "narrow" taxa - subsets of "broader" taxa. > each higher taxon is an assemblage of evolutionary related lower taxa. > at order level and above - shared structural features www. notesolution. com: broader taxa have fewer characteristics common to all members of the taxon. > ancestral features: broader taxa originated earlier in evolutionary time. Two significant structural features: location of the branch point. > relative time of origin of different taxa: extent of divergence between the two taxa.