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Foraging Tactics

Foraging Tactics. More on optimal foraging theory. Optimal Foraging Theory: Search Image. Optimal Foraging Theory: Search Image. Learned Response Specialists Volunteers. Optimal Foraging Theory. Central Place Foraging Distance vs. time vs. payoff. Optimal Foraging Theory. 0. f (T s ).

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Foraging Tactics

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  1. Foraging Tactics More on optimal foraging theory

  2. Optimal Foraging Theory:Search Image

  3. Optimal Foraging Theory:Search Image • Learned Response • Specialists • Volunteers

  4. Optimal Foraging Theory • Central Place Foraging • Distance vs. time vs. payoff

  5. Optimal Foraging Theory 0 f (Ts) A B b a TRAVEL SEARCHING Time

  6. Optimal Foraging Theory • Given equal patch quality & unequal distances • stay in ‘a’ longer • eat/collect more before moving f (Ts) b a Ts

  7. Optimal Foraging Theory 0 f (Ts)A f (Ts)B a b TRAVEL SEARCHING Time

  8. Optimal Foraging Theory f (Ts)A a f (Ts)B b Ts • Given unequal patch quality and equal distance • stay in ‘b’ longer • eat/collect same before moving

  9. f (Ts)A f (Ts)B Ts Optimal Foraging Theory • Models off a little • Nutrients • Predation Risk • Knowledge

  10. Foraging Tactics • Gleaning • Flycatching • Aerial plankton • Flush-pursuit • Trap-liners • Tool use

  11. Foraging Tactics • Gleaning • Flycatching • Aerial plankton • Flush-pursuit • Trap-liners • Tool use

  12. Foraging Tactics • Gleaning • Flycatching • Aerial plankton • Flush-pursuit • Trap-liners • Tool use

  13. Foraging Tactics • Gleaning • Flycatching • Aerial plankton • Flush-pursuit • Trap-liners • Tool use

  14. Foraging Tactics • Gleaning • Flycatching • Aerial plankton • Flush-pursuit • Trap-liners • Tool use

  15. Foraging Tactics • Gleaning • Flycatching • Aerial plankton • Flush-pursuit • Trap-liners • Tool use

  16. Foraging Tactics • Gleaning • Flycatching • Aerial plankton • Flush-pursuit • Trap-liners • Tool use

  17. Tool Use

  18. Foraging Tactics • Neophobia • Black Ducks vs. Mallards • Song Sparrows vs. Swamp Sparrows • Neotropical Warblers • Generalists vs. Specialists http://nationalzoo.si.edu/ConservationAndScience/MigratoryBirds/Research/Neophobia/duck_neophobia3.swf http://nationalzoo.si.edu/ConservationAndScience/MigratoryBirds/Research/Neophobia/duck_neophobia4.swf

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