(May 9, 2014 at 12:14 pm)Chuck Wrote:(May 9, 2014 at 12:05 pm)Tonus Wrote: Thanks for that link, that's a pretty interesting article and does a nice job of clarifying where the differences are between micro/macro evolution and why it's not accurate to claim that macro is just lots and lots of micro.
Uh, no. The point made in the cited article is "while cummulative micro-evolution alone is already sufficient in itself to cause macro-evolution, other factors also contributed to the actual path taken by macroevolution".
It does not say "micro-evolution" is in principle insufficient to explain "macro-evolution".
In essence, macro-evolution is a series of micro-evolution, guided by conditions and changes in conditions of the ambient environment.
Help me out, I am trying to find where in the article it states what you quoted. Here are some quotes directly from the artice:
"Nobody denies that macroevolutionary processes involve the fundamental mechanisms of natural selection and random genetic drift, but these microevolutionary processes are not sufficient, by themselves, to explain the history of life."
"Since speciation is not a direct consequence of changes in the frequencies of alleles in a population, it follows that microevolution is not sufficient to explain all of evolution."