Evolutionary biologists have long suspected that the diversification of a single species into multiple descendent species – that is, an “adaptive radiation” – is the result of each species adapting to a different environment. Yet formal tests of this hypothesis have been elusive owing to the difficulty of firmly establishing the relationship between species traits and evolutionary “fitness” for a group of related species that recently diverged from a common ancestral species.
Using radio transmitters, scientists have gained new insights into the behaviour of medium ground finches in the Galapagos Islands. A study led by McGill University researchers reveals daily movement patterns covering an area equivalent to the size of 30 soccer fields.
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Published on: 8 Jun 2022
