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Barriers


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Re: Population ecology

If there are barriers the three populations could speciate, but, especially with reptiles and amphibians size is mostly dependent on availability of food. Where food is plentiful and good, size reaches an optimum. Other factors ...

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by animartco
Sun May 18, 2014 1:13 pm
 
Forum: Ecology
Topic: Population ecology
Replies: 1
Views: 524

Re:

... these Homo make long-reaching sticks with knifed tips that sever the fruits fromt he branches. If this population can establish reproductive barriers across the two environments, then the grassland and forest will strongly favor bulkiness and lightweightedness, respectively. Females in each ...

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by wildfunguy
Sat Oct 19, 2013 3:13 pm
 
Forum: Evolution
Topic: Is complexity inevitable?
Replies: 16
Views: 9441

Is complexity inevitable?

... be a high probability for the emergence of traits that trascend the requirements of specific niches. I agree, but I don't see how the reproductive barriers have anything to do with it. I think I heard somewhere that homo sapiens may have come from a very small group of humanoids who had to cope ...

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by cakrit
Sat Oct 19, 2013 1:50 pm
 
Forum: Evolution
Topic: Is complexity inevitable?
Replies: 16
Views: 9441

Re: Is complexity inevitable?

... responsiveness. More to the point, I speculate that the evolution of such responsiveness could be driven by an inability to establish reproductive barriers between popoulations. Normally, if different populations are exposed to different environments, the differing selection pressures push the ...

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by wildfunguy
Fri Oct 18, 2013 1:55 am
 
Forum: Evolution
Topic: Is complexity inevitable?
Replies: 16
Views: 9441

Re: Apology to DNLee

... whole. Women struggle for respect, fair compensation, and credibility in the workforce, and the scientific community is not beyond its own gender barriers. There is a notable lack of gender diversity in the field of science, and men have always dominated it. To be an accredited woman AND Black ...

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by BTWay
Mon Oct 14, 2013 7:22 pm
 
Forum: General Discussion
Topic: Apology to DNLee
Replies: 11
Views: 67602
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