Dictionary » S » Speciation



noun, plural: speciations

The process in which new genetically distinct species evolve usually as a result of genetic isolation from the main population.


Due to Genetic Isolation, the differences in gene pools among species become so great that they cannot reproduce through interbreeding. As a result, new species are formed with a genome that is genetically distinct from the main population.

The ways in which new species are formed are as follows:

Word origin: from Latin speciēs, a seeing, kind, form + L -ātiōn- (s. of -ātiō), action or process.
Related forms: speciate (verb), speciational (adjective).

See also: Genetic isolation.

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New theory of evolution

... In 1972 J.S.Gould and N.Eldredge proposed new conception of evolution (arising of specieses) called Punctuationalism. In this theory speciation, takes place very quickly in not large populations. Can last thousands and even hundreds of years, what in scales of the geologic time counted ...

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by SystemRGB
Fri Nov 14, 2014 11:45 pm
Forum: Evolution
Topic: New theory of evolution
Replies: 0
Views: 815

Please check my answers.

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by moondisyko
Fri Apr 04, 2014 9:00 pm
Forum: Evolution
Topic: Please check my answers.
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Microevolution verus Macroevolution

... would falsify evolutionary theory wholesale, namely a cat giving birth to a dog. This, of course, doesn't happen. What does happen, though, is speciation, and in fact there is a beautiful example of extinction and speciation in a single event, namely an extinction event in a ring species. If ...

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by hackenslash
Thu Mar 06, 2014 8:57 am
Forum: Evolution
Topic: Microevolution verus Macroevolution
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Speciation and Evolution

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by 1357
Mon Nov 25, 2013 4:01 am
Forum: Evolution
Topic: Speciation and Evolution
Replies: 6
Views: 7586

Re: Is complexity inevitable?

... if you have genes that manifest differently in different environments. Thus such responsiveness to the environment could be an alternative to speciation. Furthermore, if there are some situations where reproductive barriers cannot be established, those situations may even drive the evolution ...

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by wildfunguy
Fri Oct 18, 2013 1:55 am
Forum: Evolution
Topic: Is complexity inevitable?
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