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Class Aves: Feathers

Class Aves: Feathers. 25. BIRDS AND DINOSAURS. http://www.csicop.org/uploads/images/si/ph21.gif. 26. 27. ORIGIN OF FEATHERS: BIRDS. Archaeopteryx. ORIGIN OF FEATHERS: DINOSAURS. Caudipteryx , China, late Jurassic / early Cretaceous. Feathers. 2. WHY?. Why?. 52. Keratin.

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Class Aves: Feathers

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  1. Class Aves: Feathers 25

  2. BIRDS AND DINOSAURS http://www.csicop.org/uploads/images/si/ph21.gif 26 27

  3. ORIGIN OF FEATHERS: BIRDS Archaeopteryx

  4. ORIGIN OF FEATHERS: DINOSAURS Caudipteryx, China, late Jurassic / early Cretaceous

  5. Feathers 2

  6. WHY?

  7. Why? 52

  8. Keratin Alpha-Keratin Beta-Keratin

  9. Keratin Beta-Keratin Alpha-Keratin

  10. Pterylae Fig. 3-1 in Podulka et al. 2004

  11. Apteria 22 23

  12. Cassin’s Finch 24

  13. Variation in Apteria Occurrence 20 21

  14. Feather Structure (Outer Vane, Inner Vane, Shaft) 1

  15. Feather Vane Symmetry Fig. 3-3 in Podulka et al. 2004

  16. Vane Symmetry 14

  17. Feather Vane Symmetry Guam Rail

  18. Vane Symmetry Archaeopteryx (Jurassic Period) 3

  19. Shaft 1

  20. Shaft: Calamus (Quill) Proctor and Lynch 1993, p. 83

  21. Shaft: Rachis Proctor and Lynch 1993, p. 83

  22. Vane Structure: Barbs Velcro (Barb = a) Ramus, b) Barbules, c) Barbicels = Hooklet) Fig. 4-1 in Gill 2007

  23. Feather Maintenance Preening

  24. Feather Types Contour Feathers http://askabiologist.asu.edu/research/bird_feathers/images/feather_types.jpg

  25. I) Contour Feathers Fig. 1-10 in Podulka et al. 2004 1

  26. Contour Feather Adaptations

  27. Contour Feathers: Flight

  28. Contour Feathers: Remiges, Rectrices Fig. 3-7 in Podulka et al. 2004

  29. Regions of Contour Feather Vane Pennaceous, Plumulaceous

  30. Silent Owl Flight Fig. 3-12 in Podulka et al. 2004

  31. Silent Owl Flight http://drawingthemotmot.files.wordpress.com/2009/02/img_5589.jpg

  32. Contour Feathers: Breeding Plumage

  33. Contour Feathers: Afterfeather 9

  34. Contour Feather Structure Shaft Vane Symmetric Vane Asymmetric Vane Calamus Aftershaft = Afterfeather Rachis Pennaceous Vane Plumulaceous Vane Barb Ramus Distal Barbules Proximal Barbules Barbicels = Hooklets 1

  35. II) Down Feathers 29 30

  36. a) Natal Down Feathers 32 31

  37. “Naked as a Jaybird” 34 33

  38. b) Body Down Feathers 39 30 40 38

  39. Natal Down, Body Down 43

  40. 37 36 35

  41. III) Semiplume Feathers 45

  42. III) Semiplume Feathers

  43. 1 IV) 46

  44. V) Powder Down Feathers 48 47 49

  45. VI) Bristles 50) Fig. 3-14 in Podulka et al. 2004 51)

  46. Contour Down a) Natal Down b) Body Down Semiplume Filoplume Powder Down Bristles Feather Types:

  47. Origin of Feathers? “Evo Devo”: Evolution of Feathers Parallels Stages of Feather Development

  48. Next: Feather Development Fig. 3-25 in Podulka et al. 2004

  49. 1 http://www1.istockphoto.com/file_thumbview_approve/120142/2/ istockphoto_120142_eagle_s_feather.jpg 2 http://www.coincommunity.info/coin/0250/1912_obverse.gif 3 http://cas.bellarmine.edu/tietjen/images/Archaeopteryx0.jpg 4 http://cas.bellarmine.edu/tietjen/images/Archaeopteryx0.jpg 5 http://www.seaworld.org/animal-info/info-books/penguin/images/ pic-feathers.jpg 6 http://www.polarcruises.com/Images/art_Penguins_emperor_and_chick.jpg 7 http://people.eku.edu/ritchisong/554images/archaeopteryx_5.jpg 8 http://www.flyanglersonline.com/flytying/fotw2/hn4.jpg 9 http://www.interaktv.com/BIRDNET/featherwaftershftBd1898.GIF 10 http://i.pbase.com/u10/norman/upload/902851.eaglefeather.jpg

  50. 11 http://www.naturalsciences.org/education/treks/bonanza/images/Owl-feather.jpg 12 http://globalflyfisher.com/staff/luallen/new_anatomy.gif 13 http://www.sialis.org/images/tres_babies_size_difference.jpg 14 http://orn-lab.ekol.lu.se/birdmigration/standalone/flightlab/image/knotwing.jpg 15 http://www.mountvernon.org/images/store/MV_37MED.jpg 16 http://cache.viewimages.com/xc/3203778.jpg?v=1&c=ViewImages&k =2&d=C037F202D99E3099AB0670069F64B336A55A1E4F32AD3138 17 http://www.ics.uci.edu/~eppstein/pix/sdwap/GoldenEagle.html 18 http://www.bigcountryaudubon.org/wp-content/uploads/2006/05/ JAE_Painted_Bunting_Closeup.jpg 19 http://www.polarcruises.com/Images/art_Penguins_emperor_and_chick.jpg

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