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Islands and Evolution

Discussion of everything related to the Theory of Evolution.

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Islands and Evolution

Postby manohar » Tue Apr 21, 2009 6:45 am

Why are Islands better places to see and study evolution?
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Postby mith » Tue Apr 21, 2009 2:03 pm

better scenery, researchers get bored easily.
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Postby Darby » Tue Apr 21, 2009 4:11 pm

Consider that divergence in species is helped by reproductive isolation of groups.
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Postby alextemplet » Tue Apr 21, 2009 6:21 pm

In most cases, island species have evolved from mainland species that adapted to the unique environment of the island. Since the ancestral species usually still exists on the mainland, researchers are provided with a rare opportunity to study how a living species adapts to a new environment. This would not be possible if the ancestral species were not still extant in its original mainland habitat.
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Postby mcar » Thu Apr 23, 2009 11:30 am

That's also the very idea of Darwin's finches in Galapagos islands, right?
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Re: Islands and Evolution

Postby skeptic » Tue Apr 28, 2009 10:08 am

Sometimes islands come in groups, which permits you to see the way the same ancestor radiates into different forms under the different environmental conditions on different islands. This was very true for the Galapagos and Darwin's finches.
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