Foraging Tactics - PowerPoint PPT Presentation

1 / 16
About This Presentation
Title:

Foraging Tactics

Description:

Black Ducks vs. Mallards. Song Sparrows vs. Swamp Sparrows. Neotropical Warblers ... http://nationalzoo.si.edu/ConservationAndScience/MigratoryBirds/Research ... – PowerPoint PPT presentation

Number of Views:89
Avg rating:3.0/5.0
Slides: 17
Provided by: brian154
Category:
Tags: foraging | tactics

less

Transcript and Presenter's Notes

Title: Foraging Tactics


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
b
a
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
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
  • Neophobia
  • Black Ducks vs. Mallards
  • Song Sparrows vs. Swamp Sparrows
  • Neotropical Warblers
  • Generalists vs. Specialists
  • http//nationalzoo.si.edu/ConservationAndScience/M
    igratoryBirds/Research/Neophobia/duck_neophobia3.s
    wf
  • http//nationalzoo.si.edu/ConservationAndScience/M
    igratoryBirds/Research/Neophobia/duck_neophobia4.s
    wf
Write a Comment
User Comments (0)
About PowerShow.com