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Macroevolution

Macroevolution. New Species. Macroevolution. Is concerned without how new taxonomic groups came to be I.e. how did mammals evolve from ancestral reptiles. The Taxonomic Groups. Domain Kingdom Phylum Class Order Family Genus Species. Human Taxonomy. Domain Kingdom Phylum Class

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Macroevolution

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  1. Macroevolution New Species

  2. Macroevolution • Is concerned without how new taxonomic groups came to be • I.e. how did mammals evolve from ancestral reptiles

  3. The Taxonomic Groups • Domain • Kingdom • Phylum • Class • Order • Family • Genus • Species

  4. Human Taxonomy • Domain • Kingdom • Phylum • Class • Order • Family • Genus • Species • Eukarya • Animalia • Chordata • Mammalia • Primate • Hominidae • Homo • Sapiens

  5. Pneumonic Device • Dude • Kings • Play • Chess • On • Fancy • Gold • Sets

  6. Microevolution Macroevolution • Usually a population gets separated • Different populations encounter different environments and accumulate different traits • When they are so different they can’t reproduce- they are considered a new species

  7. Adaptive Radiations • Frequently one really advantageous trait leads to the development of many new species • i.e. wings allowed birds to fly- and many species of bird evolved from one ancestor

  8. A few notes • There are a LOT of species • Phylogenetic trees get really, really complicated and extremely detailed

  9. How do we make the trees? • We look for anatomical similarities • Similarities in the amino acids in their proteins • Similarities in DNA sequence • Similarities in behavior • Similarities in development • Similarities to fossil record

  10. Usually • The top means modern-day species • As you go lower you have the ancestors of that species • Branching means the populations split into two different groups • The more recently the groups branched, the more closely related • The higher on the tree you group things, the more specific the group

  11. Example

  12. As a Class We Will Make Our Own Phylogenetic Tree • Each group will cover a major branch on the Tree of Life • Identify the unique features of that group, anything important or interesting about them, and examples of members. • Present them to the class • You will be quizzed on the main points on all of the groups

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