BIOL-1040 Chapter Notes - Chapter 14 : Alpheidae, Polyploid, Allopatric Speciation
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14. 1 biological diversity: speciation: the process by which one species splits into two or more species. Each time speciation occurs, the diversity of life increases. 14. 2 allopatric speciation & geographic isolation: allopatric speciation: populations separated by a geographic barrier. Grand canyon there are 2 separate species of squirrels. One squirrel, the harris antelope squirrel inhabits the southern part of the canyon, while the white-tailed antelope squirrel inhabits the northern side. Some of the species of shrimp have divided living on 2 different parts of the atlantic, and or living in the pacific. 14. 8 isolated islands and speciation: adaptive radiation: evolution of many diverse species from a common ancestor. This can be seen on the galapagos islands with the finches that reside there, specifically looki(cid:374)g at their beak size a(cid:374)d shape. These birds" beaks have adapted over ti(cid:373)e to assist each species in their feeding habits.
