Lecture 11- Individual Variation in Behaviour Flashcards

1
Q

examples of different behavioural phenotypes

A

producer and scrounger- finding food vs taking food others have found- under negative frequency-dependence based on fitness

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2
Q

where has this producer/scrounger model been tested

A

in birds- one side for each behaviour- can see how birds distribute themselves
more scroungers in the uncovered patch- possibly a more advantageous behaviour, as food is more easily available?

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3
Q

how does the separation occur

A

end up with a binomial distribution of phenotypes, can see very quick separation out into types

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4
Q

example of a conditional strategy

A

different ‘morphs’- e.g. in common side-blotched lizard- ‘rock paper scissors’ type OBY colour morphs
size morphs in marine isopods
male tactic morphs in blue-gill sunfish (parental, sneaker, satellite)

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5
Q

genetic characteristics of morphs

A

often a single gene region which is important- helpful in selection, often obvious- good to see what the situation is

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6
Q

what is a behavioural syndrome

A

set of correlated traits, e.g. ‘aggressive’ or ‘dispersal’ behaviour

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7
Q

mechanisms of variation

A

may not be genetic- found no genetic correlation in a species of fish- individuality can emerge in a variety of ways

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8
Q

example of a behavioural structure which can change based on the environment

A

fewer behavioural correlations in predator-free environments- less need for a proper ‘aggressive phenotype’

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