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Tautz for schumacher college 2011

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Transcript

  • 1. 1. Time & task as contextual cues
    Honeybee cognition:how bees perceive the worldand communicate about it
    Jürgen Tautz
    BEEgroup, Würzburg University
    October 11, 2011
  • 2. Index
    Introduction
    Vision
    Communication
    Learning experiments
    Numerosity discrimination
    Navigation
  • 3. 1. Introduction
    170000 species of flowering plants are pollinated by honeybees
  • 4. Index
    Introduction
    Vision
    Communication
    Learning experiments
    Numerosity discrimination
    Navigation
  • 5. 2. Vision
  • 6. 2. Vision
  • 7. 2. Vision
    Human vision
    300nm
    bee vision
  • 8. 2. Vision
  • 9. 2. Vision
    daylight
    UV light
    cinquefoil
  • 10. Karl von Frisch( 1886-1982 )
    10
  • 11. 2. Vision
    Karl von Frisch: der Farben- und Formensinn der Bienen, 1915
  • 12. Index
    Introduction
    Vision
    Communication
    Learning experiments
    Numerosity discrimination
    Navigation
  • 13. 3. Communication
    Karl von Frisch ( 1886-1982 )
  • 14. 3. Communication
  • 15. 3. Communication
  • 16. 3. Communication
  • 17. 3. Communication
  • 18. 3. Communication
  • 19. 3. Communication
    dance signals
    round dance
    6m
  • 20. 3. Communication
    dance signals
    round dance
    6m
    6m
    waggle dance
  • 21. 3. Communication
    dance signals
    round dance
    6m
    6m
    waggle dance
    6m
    round dance
  • 22. 3. Communication
    Dance languageisambiguous
  • 23. Forthedancecommunication
    in order tofunctionthefollowingstepsareimportant:
    1. The dancerhasfirsttocollecttheinformationitwantsto pass on
    2. Danceranddancefollower must meeteachother
    3. Dancer (sender) must pass on theinformation
    4. Dance follower (receiver) must receivetheinformation
    5. Dance follower must makeuseoftheinformation
  • 24. How do danceranddancefollowersmeet?
  • 25.
  • 26. Whatarethesignpostsforthedancefloor?
  • 27. Wax chemistry is highly complex – more than 300 components
  • 28. 8
    The antennaof a workerbee
  • 29.
  • 30.
  • 31. How do dance followers detect the dancer
    in a totally noisy environment?
  • 32. Karl von Frisch suspected almost 80 years ago: comb vibrations?
  • 33. Mechanical properties of the comb
  • 34.
  • 35. The dancingbeeassender
  • 36. 270 Hz bursts
  • 37.
  • 38. Are the gaps really only passages?
  • 39. After a few months …
  • 40. After a few months…
  • 41. Index
    Introduction
    Vision
    Communication
    Learning experiments
    Numerosity discrimination
    Navigation
  • 42. 4. Learning experiments
    Maze learning
    Proboscis extension response
  • 43. How can we show that bee can distinguish between waxes?
  • 44. Ivan Pawlow (1849 – 1936)
    http://paedpsych.jk.uni-linz.ac
  • 45. A
    stimulus
    response
    www.regiosurf.net/.../lernen/ kkondit/kkondit.htm
  • 46. B
    no reaction
    Neutral stimulus
    www.regiosurf.net/.../lernen/ kkondit/kkondit.htm
  • 47. C
    response
    Neutral stimulus
    +
    stimulus
    www.regiosurf.net/.../lernen/ kkondit/kkondit.htm
  • 48. D
    response
    former neutral stimulus
    www.regiosurf.net/.../lernen/ kkondit/kkondit.htm
  • 49. Back to the honeybee
  • 50.
  • 51. A
    Proboscis extension response
  • 52. Wax sample
    B
    No spontaneous response
  • 53. Wax sample
    C
    Proboscis extension response
  • 54. Conditioned proboscis extrension response
    Wax sample
    D
  • 55. Learning thedifference
    www.regiosurf.net/.../lernen/ kkondit/kkondit.htm
  • 56. Discriminationlearning in bees
    Old wax
    New wax
    PER
    no PER
  • 57. Bees descriminate waxes
  • 58. Labyrinth lernen
    58
  • 59. 4. Learning: Maze navigation
    Zhang SW, Bartsch K, Srinivasan MV (1996) Maze Learning by Honeybees. Neurobiology of Learning and Memory 66: 267-282.
  • 60. 4. Learning: face recognition
    Dyer AG, Neumeyer C, Chittka L (2005) Honeybee (Apismellifera) vision can discriminate between and recognise images of human faces. J ExpBiol 208: 4709-4714.
  • 61. Index
    Introduction
    Vision
    Communication
    Learning experiments
    Numerosity discrimination
    Navigation
  • 62. 62
  • 63. 63
  • 64. 64
  • 65. 5. Numerosity discrimination
    Spatial frequency control
    Total area control
    Novel objects
    Randomized dots
    Sample & choice different
    HJ Gross, M Pahl, A Si, H Zhu, J Tautz, SW Zhang (2009) PLoS ONE 4(1): e4263.
  • 66. Index
    Introduction
    Vision
    Communication
    Learning experiments
    Numerosity discrimination
    Navigation
  • 67. 6. Navigation
    Can experienced foragers find back to the hive after blind displacement?
    If so, which navigational information do they use?
    M Pahl, H Zhu, J Tautz, SW Zhang (2011) PLoSONE, in press
  • 68. 6. Navigation
    M Pahl, H Zhu, J Tautz, SW Zhang (2011) PLoSONE, in press
  • 69. 6. Navigation
    64 bit RFID chip
    Tagged pollen forager
    M Pahl, H Zhu, J Tautz, SW Zhang (2011) PLoSONE, in press
  • 70. 6. Navigation
    M Pahl, H Zhu, J Tautz, SW Zhang (2011) PLoSONE, in press
  • 71. 6. Navigation
    • Homing rate, homing time and the maximum return distance depend on direction
    • 72. Global landmarks facilitate homing
    • 73. Bess could use the entire skyline panorama to find back home
    M Pahl, H Zhu, J Tautz, SW Zhang (2011) PLoSONE, in press
  • 74. The end
    Thank you for your attention!