Lecture7_Sept_9_slides

Lecture7_Sept_9_slides - Trees trees and more beautiful...

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1 Trees, trees, and more beautiful trees… what to do with them? Phylogenetic trees are depicted many different ways Phylogenetic trees are depicted many different ways Phylogenetic trees are depicted many different ways Phylogenetic trees are depicted many different ways Phylogenetic trees are depicted many different ways
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2 Phylogenetic trees are depicted many different ways Phylogenetic trees are depicted many different ways Phylogenetic trees are depicted many different ways Phylogenetic Trees: What do we do with them? • Classification & Nomenclature • Molecular Clocks • BioGeography • Forensics • Studies of adaptation Using trees: Classification and Nomenclature Taxonomy: the process of biological classification (categorizing and naming biological diversity) Linnaean Classification • Hierarchical method of naming Species Genus Family Order Class Phylum Kingdom
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3 Even in the best-studied groups (birds and mammals) we are still discovering many unknown species Cercartetus sp. (Pygmy Possum). Western New Guinea, Indonesia • 2007 Yet-unnamed Barbet Discovered in Peru • October 2008 by Mike Harvey ‘08, Glenn Seeholzer ‘08, and Ben Winger ‘07 Species nomenclature in the Linnaean system A Latin binomial includes names of the genus and species: Canis familiaris Homo sapiens Sometimes the person originally describing the species is listed following the species name: Aquilegia formosa Fischer – western columbine Some conventions everybody should know: Genus and species are italicized Homo sapiens Sometimes the genus is abbreviated: H. sapiens
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Lecture7_Sept_9_slides - Trees trees and more beautiful...

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