4Nov09_antipredat - 144: Anti-Predation The Prey Fight Back...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
144: Anti-Predation 4 Nov 09 1 The Prey Fight Back • How not to be seen –Crypticity • How to survive if you’re seen – Sel±sh Herd – Redirect attack – Poison attacker Cryptic = Form + Behavior 1. Mimic background 2. Mimic something dangerous Studying spiders in Hawaii Tetragnatha quasimodo Tetragnatha kukuhaha
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
144: Anti-Predation 4 Nov 09 2 How to survive if you’re seen: take the other guy • SelFsh Herd (W.D. Hamilton) –Large group, individual safer • Pursuit Avoidance Signal Costly signal given to predator Pursuit Avoidance Signal in Ungulates –Mule Deer –Thomson Gazelle • Stare • Stamp • Snort • Walk, ±agging tail • Stot Cheetahs abandon hunts more often when gazelles stot How to survive: Attack predator
Background image of page 2
144: Anti-Predation 4 Nov 09 3 Why Mobbing Works 1. Lose ambush advantage 2. Damage predator poop defense 3. Confusion effect capture rate decreases California Ground Squirrel Infrared Tail Signal -- given to pit vipers, not others Ground squirrel
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/11/2010 for the course IB Animal Beh taught by Professor Lacey during the Fall '09 term at University of California, Berkeley.

Page1 / 5

4Nov09_antipredat - 144: Anti-Predation The Prey Fight Back...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online