`First arrival` hypothesis in Darwin`s finches gets some caveats
(PHYSorg.com Biology)

Being first in a new ecosystem provides major advantages for pioneering species, but the benefits may depend on just how competitive later-arriving species are. That is among the conclusions in a new study testing the importance of `first arrival` in controlling adaptive radiation of species, a hypothesis famously proposed for `Darwin`s Finches,` birds from the Galapagos Islands that were first brought to scientific attention by Darwin.