Sentences with phrase «allopatric speciation»

But the climate change still had a deep impact on anthropoid evolution, because habitat fragmentation and an increased level of allopatric speciation took place as a result.

Just for a laugh some time, you should look up the research on allopatric speciation, the only proposed mechanism for the existing fossil record stasis / rapid change..

@ME II «Perhaps I'm wrong but wasn't allopatric speciation exactly what Gould was proposing, or at least built upon, for Punctuated Equilibrium?»

It's off the mark at every step (which I guess is why allopatric speciation remains the ONLY theory on how punctuated equilibrium occurs): — it requires that a mutation be present in the population and not get weeded out, which is not what is seen at all (gene pools wobble about the genetic mean for long periods of time).

Allopatric speciation happens when a geographical change — a river changing course for example or a new mountain range — splits a species in two.

If most evolution happens in these rare instances of called allopatric speciation, then evidence of gradual evolution should be rare.

Allopatric speciation holds that species with large central populations are stabilized by their large volume and the process gene flow.

Speciation by vicariance is widely regarded as the most common form of speciation; and is the primary model of allopatric speciation.

Colin... Allopatric speciation is another argument in the quiver of intelligent design.

which is exactly why the ONLY theory on the table (allopatric speciation) as a research field is an utter backwater.

«you should look up the research on allopatric speciation,» «You'll quickly see (as did Gould), that to believe it just requires a willful suspension of disbelief» Perhaps I'm wrong but wasn't allopatric speciation exactly what Gould was proposing, or at least built upon, for Punctuated Equilibrium?

the bizarre thing about the athiest / naturalistic stance on natural selection / purely random genetic mutation, allopatric speciation and stasis / rapid change is that there is simply no harmony there..

«That environmental patchiness seems to have promoted what we call «allopatric speciation.»

There are three main ideas concerning the emergence of new species (Modes of Speciation), each based on the degree to which populations undergoing this process are geographically isolated from one another (allopatric speciation, sympatric speciation, parapatric speciation).

It's purpose is to look at the genetic differences from isolates of similar microbes from across the globe to understand the degree to which populations of microbes are isolated and whether this isolation suggests an allopatric speciation model for prokaryotes.

Allopatric speciation (meaning geographic speciation) is speciation that occurs when biological populations of the same species become separated owing to such geographical events as mountain building or social changes such as migration or emigration.

Its small size is a result of insular dwarfism, a form of allopatric speciation.