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17-1: Biodiversity

17-1: Biodiversity. What’s biodiversity?. Variety of species ~1.5 million species named & identified so far ~2-100 million yet to discover Do we want lots or a little? Why? Macroevolution, Campbell CD Activity 14C. Taxonomy: a hierarchy. D K P C O F G S. BIGGER. SPECIES.

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17-1: Biodiversity

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  1. 17-1: Biodiversity

  2. What’s biodiversity? • Variety of species • ~1.5 million species named & identified so far • ~2-100 million yet to discover • Do we want lots or a little? • Why? • Macroevolution, Campbell CD Activity 14C

  3. Taxonomy: a hierarchy • D • K • P • C • O • F • G • S

  4. BIGGER SPECIES SPECIES SPECIES SPECIES SPECIES SPECIES SPECIES

  5. More Vocab!

  6. What’s Taxonomy? • Pangolin’s more related to... • Crocodile? • Dog? • Anteater?

  7. Scientific Names • used world-wide • based on Greek/Latin Why do we need scientific names? • Who’s this??

  8. Scientific Names • Mt. Lion, puma, cougar, panther…yes to all— • Lots of common names (confusing) • Only ONE scientific name: Felisconcolor

  9. Scientific Names Scientific name for humans? • Homosapiens Dogs? • Canisfamiliaris Cats? • Feliscatus

  10. Binomial Nomenclature Carolus Linnaeus Swedish botanist, 18th century Developed 2-word naming system RULES: 1. ALWAYS underline or italicize • capitalize 1st word (GENUS), never the 2nd (SPECIES) huntbot.andrew.cmu.edu

  11. More Examples: 3 Bears Which two are most closely related? 1-Ursusarctos grizzly bear 2-Ursusmaritimus polar bear 3-Ailuropodamelanoleuca panda bear SAME GENUS!!! www.esew.org, www.raydoan.com

  12. Classification System Kingdom Phylum Class Order Family Genus species Animalia Chordata Mammalia Carnivora Ursidae Ursus arctos Animalia Chordata Mammalia Carnivora Ursidae Ursus maritimus Animalia Chordata Mammalia Carnivora Ursidae Ailuropoda melanoleuca Kings Play Chess On Fine Gold Silk

  13. What about us??? Kingdom Phylum Class Order Family Genus species Animalia Chordata Mammalia Primates Hominidae Homo sapiens

  14. p. 339 #4,5,8 Salamander Dichotomous Key

  15. 17-2 Systematics

  16. What’s Systematics?? • Who does it? • Related to “phylogeny”...

  17. Phylogenetic Systematists • SEVERAL types of evidence:

  18. Phylogenetic Trees • Structures • Homologous • Analogous

  19. Phylogenetic Trees • Relationships, cladistics • Shared • Derived

  20. Using Molecular Data • Amino acids! • Chromosomes!

  21. Say What? • Lots of info • Physical features, embryos, genes, mtDNA, rRNA, amino acids • More research, revise

  22. Try it!—We’ll use physical characteristics:

  23. HW Check--p. 345 #1,3,4,8 & Friday’s Cladogram Activity

  24. Please list the EIGHT levels of taxonomy, in order, and what’s all of that for humans?!?!?!

  25. 17-3: Classification Campbell cd Activity 15C!!

  26. What are the 6 Kingdoms? • Archaebacteria • Eubacteria • Protista • Fungi • Plantae • Animalia

  27. What are DOMAINS???? BIGGER than kingdoms!

  28. Tree of Life • http://www.sciencemag.org/feature/data/tol/

  29. p.350 # 1-3,6,8

  30. Let’s Review…

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