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Biology Allopatric vs Sympatric Speciation01:10

Biology Allopatric vs Sympatric Speciation

Allo6d4884a29bdf6510b8d59d4546e68f-allopatry

A similar graphic showing allopatry from ScienceBlogs.com

Symbab22f74d7897d44fc6df6a56a2142f7-Sympatry

An easy to understand example of sympatry, from ScienceBlogs.com

There are several different types of speciation (how a new plant or animal species comes to be). Two of these types include allopatry and sympatry.

AllopatryEdit

Allopatric speciation happens when a species is divided into 2 separate groups which do not come into contact with one another (they become isolated groups) (Nat Geo Education).

A physical barrier (like a valley or a river) could isolate the two groups, which would cause each group to evolve separately, unable to breed with the individuals of the other group.

SympatryEdit

This type of speciation occurs when similar species develop in the same habitat, and there are no physical barriers present (Nat Geo Education).

ReferencesEdit

Basic concepts: Allopatry and sympatry – Evolving Thoughts. (n.d.). Retrieved November 21, 2013, from http://scienceblogs.com/evolvingthoughts/2007/03/11/basic-concepts-allopatry-and-s/

speciation - National Geographic Education. (n.d.). Retrieved November 21, 2013, from http://education.nationalgeographic.com/education/encyclopedia/speciation/?ar_a=1

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