BIO120H1 Lecture Notes - Lecture 10: Carl Linnaeus, Willi Hennig, Binomial Nomenclature
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BIO120H1 Full Course Notes
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In july 1837, darwin began his notebook on the transmutation of species . Aside from discovering mechanism of natural selection, also very interested in genealogy. The one he put in the origin: the only figure in the origin. Genus and species: struggled to explain complexity of life, came up with classification. Name is a key to the literature on an organism. Without a name, hard to find stuff out about an organism. A taxonomic unity at any level (plural = taxa), neutral term. Systematics: the study of biodiversity and the evolutionary relationships among organisms. Phenetics (original): classifying species based solely on overall resemblance. In the 70s, all taxonomists were pheneticists, looked at morphology. Cladistics (new): classifying species on the basis of their phylogenetic relationships. Many sources of data (morphology, chromosome number, sequence data) The birth of cladistics and the building of phylogenetic trees.
