Which phenotypic effects does crowding have on the migratory locust? How are these changes adaptive?
What will be an ideal response?
ANSWER: Migratory locusts can develop into either solitary or migratory forms. Crowding induces a
transformation to the migratory form with more body fat and longer wings. These changes
are adaptive because dispersal reduces competition in the original environment and may
establish new populations in unoccupied environments.
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