The population of medium ground finch population decreases.
- The medium ground finch population decreases on Daphne after the happening of the 1977 drought because small seeds on which medium ground finch population feeds are reduced.
- these medium ground finch population die due to hunger and the population of large beak finch increases due to the availability of big sized seeds so we can conclude that change occurs in the population of medium ground finch population.
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