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Macroevolution

Definition

noun, plural: macroevolutions

Evolution happening on a large scale, e.g. at or above the level of a species, over geologic time resulting in the divergence of taxonomic groups.


Supplement

Macroevolution involves variation of allele frequencies at or above the level of a species, where an allele is a specific iteration of a given gene. It is an area of study concerned with variation in frequencies of alleles that are shared between species and with speciation events, and also includes extinction. It is contrasted with microevolution, which is mainly concerned with the small-scale patterns of evolution within a species or population.


Word origin: Greek makro-, from makrós, long + evolution.
Related forms: macroevolutionary (adjective).

Compare: microevolution.


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Microevolution verus Macroevolution

... of a given gene. Microevolution is defined as variations in the frequencies of alleles below species level, in a population of organisms. Macroevolution is defined as variations in the frequencies of alleles at or above species level, or in populations of populations. The easiest way to ...

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by hackenslash
Thu Mar 06, 2014 8:57 am
 
Forum: Evolution
Topic: Microevolution verus Macroevolution
Replies: 16
Views: 21059

What do you do when talking to creationists?

... -> wings with lots of little steps in between. In cases where a step is too difficult maybe God steps in? 2. Scientists don't have evidence for macroevolution, only microevolution. Scientists have all the evidence that is possible for them to have. What additional evidence could they obtain ...

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by FriarBroccoli
Sat Jan 18, 2014 2:40 am
 
Forum: Evolution
Topic: What do you do when talking to creationists?
Replies: 4
Views: 4461

What do you do when talking to creationists?

... but I can always use more to argue against this, so what do you use to argue against irreducible complexity? 2. Scientists don't have evidence for macroevolution, only microevolution. I usually point to webpages of transitional fossils such (I like the fish-tetrapod transitions a good deal), and ...

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by Dubnium105
Fri Jan 17, 2014 11:08 pm
 
Forum: Evolution
Topic: What do you do when talking to creationists?
Replies: 4
Views: 4461

Re: Microevolution verus Macroevolution

What is an example of Marcoevolution?

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by Gale2015
Thu Feb 28, 2013 6:52 pm
 
Forum: Evolution
Topic: Microevolution verus Macroevolution
Replies: 16
Views: 21059

Theories - Origin of Life

... for change is unlimited. Of course I can reply to this new statement as well, and I refer you to the pages I linked when we were discussing macroevolution above. If the rate of change is too fast, the species is unable to adapt and goes extinct. Climate has never changed as fast as it is ...

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by AstraSequi
Tue Mar 27, 2012 2:42 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 906953
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