Ch 17 Speciation - PowerPoint PPT Presentation

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Ch 17 Speciation

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  1. Ch 17 Speciation Lecture outline

  2. Speciation, species and linneaus

  3. Species concepts • Biological Species Concept: • Lineage Species Concept:

  4. Allopatric Isolation • http://wps.pearsoncustom.com/wps/media/objects/3014/3087289/Web_Tutorials/18_A01.swf

  5. Sympatric Isolation

  6. Prezygotic Isolation • Mechanical isolation

  7. Prezygotic Isolation • Temporal isolation

  8. Prezygotic Isolation • behavioral isolation

  9. Prezygotic Isolation • habitat isolation

  10. Prezygotic Isolation • gametic isolation

  11. Postzygotic Isolation • low hybrid zygote viability

  12. Postzygotic Isolation • low hybrid adult viability

  13. Postzygotic Isolation • hybrid fertility