Antipredator behavior

7 important questions on Antipredator behavior

What is cryptic coloration?

body coloration that matches the color of the environment and is used to avoid being killed by predators

What is reduced activity by antipredator behaviour?

can reduce detection by predators who often use motion detection to find prey

Viligance, selfish herd and confusion effect are being use as antipredator behaviour. what are they ?

  • Viligance: scanning the surroundings for predators
  • selfish herd: aggregation of individuals reduces the risk for any particular individual in the group 
  • confusion effect: aggregation of animals makes it difficult for a predator to choose a prey to attack
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What is startle display?

abrupt changes in behaviour

What is an example of behavioral trade off?

sacrificing one activity for another

How do social groups lower predation risk? name 2

  • dilution effect: the probability if any one individuals dying is diluted by the presence of others
  • selfish herd hypothesis: a predator is more likely to kill a member of the outside of the group because it will encounter outside individuals first

What is the group size effect?

the vigilance behaviour of each individual decreases ad the number of individuals in its group increases

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