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Is That Really You?

Insect Camouflage, Mimicry, and Defense. Is That Really You?. Insects Are a Nutritious and Abundant Source of Food. How do you defend against being eaten? Exoskeleton Flight Large population numbers “Hide” Develop defenses and advertise them. Crypsis. Olfactory Auditory

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Is That Really You?

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  1. Camouflage, Mimicry, and Defense Insect Camouflage, Mimicry, and Defense Is That Really You?

  2. Camouflage, Mimicry, and Defense Insects Are a Nutritious and Abundant Source of Food • How do you defend against being eaten? • Exoskeleton • Flight • Large population numbers • “Hide” • Develop defenses and advertise them

  3. Camouflage, Mimicry, and Defense Crypsis

  4. Camouflage, Mimicry, and Defense Olfactory Auditory Orientation and Attitude Crypsis can be morphological or behavioral • Shape • Color • Pattern • Contour

  5. Camouflage, Mimicry, and Defense CamouflageLooking like your environment

  6. Camouflage, Mimicry, and Defense Moth larvae Camouflage

  7. Camouflage, Mimicry, and Defense Camouflage Katydids

  8. Camouflage, Mimicry, and Defense Camouflage “Bird dropping katydid “Pebble” grasshopper

  9. Camouflage, Mimicry, and Defense Disruptive patterns Lateral flaps Reduction of shadow

  10. Camouflage, Mimicry, and Defense Orientation and Lateral Flaps

  11. Camouflage, Mimicry, and Defense Orientation

  12. Camouflage, Mimicry, and Defense Aposematic or Warning Coloration“I am Dangerous!” May incorporate: vivid colors large, colorful aggregations distinctive sounds “flaunting” behavior

  13. Camouflage, Mimicry, and Defense Warning Colorationred, yellow, pink, black Coral snake Poison arrow frog

  14. Camouflage, Mimicry, and Defense Monarch Butterfly Larvae feed on milkweed

  15. Camouflage, Mimicry, and Defense Warning Coloration Yellowjackets Moth caterpillar

  16. Camouflage, Mimicry, and Defense Mimicry“I am Someone Else” • One species (the mimic) resembles another (the model) • The model is dangerous (usually toxic - unpalatable) - the mimic is not dangerous (it is palatable) • Usually more models than mimics (but not necessarily) • Species must occur together

  17. Camouflage, Mimicry, and Defense Batesian MimicryTraditional Model/Mimic SituationModel is unpalatable or dangerousMimic is palatable or not dangerous

  18. Camouflage, Mimicry, and Defense Monarch and Viceroy

  19. Camouflage, Mimicry, and Defense Batesian Mimicry Beetle and Moth Fly and Bee

  20. Camouflage, Mimicry, and Defense Batesian Mimicry Moth Yellowjacket

  21. Camouflage, Mimicry, and Defense Mullerian Mimicry Unpalatable or dangerous (unrelated) species evolve to look like each other •Butterfly complexes •Stinging insects

  22. Camouflage, Mimicry, and Defense Mullerian MimicryButterfly Complexes

  23. Camouflage, Mimicry, and Defense Passive and Systemic Chemical Defenses“I am not tasty” Remember allomones - benefit the sender! Remember how important chemical signals are to insects!

  24. Camouflage, Mimicry, and Defense Monarch Butterfly Larvae feed on milkweed

  25. Camouflage, Mimicry, and Defense Spines on caterpillars

  26. Camouflage, Mimicry, and Defense Urticating Hairs Severe Reaction

  27. Camouflage, Mimicry, and Defense Reflex Bleeding

  28. Camouflage, Mimicry, and Defense Enteric Discharge

  29. Camouflage, Mimicry, and Defense Turning the Tables - Attack! Osmetaria

  30. Camouflage, Mimicry, and Defense Startle Behavior - I may not be what I want you to “think” Eye spots

  31. Camouflage, Mimicry, and Defense Startle behavior - Flash Coloration Often accompanied by sound

  32. Camouflage, Mimicry, and Defense Alligator-head Insect

  33. Camouflage, Mimicry, and Defense Attack!Bombardier Beetle

  34. Camouflage, Mimicry, and Defense Yellowjackets

  35. Camouflage, Mimicry, and Defense Group Defense And warning coloration

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