Attempted resurrection of the peppered moth (Evolution)

by David Turell @, Friday, November 28, 2008, 18:02 (5837 days ago)

An excellent article has appeared reviewing the position of the peppered moth in the studies of microevolution, that is, changes in a species to respond to changes in the environment. Kelllewell did the original studies to suggest that dark moths appeared and survived because pollution darkened the trees on which they rested and birds could not spot them. Majerus described the errors in K's study and the moths were dropped from textbooks on Darwin. Majerus has restudied the issue in an attempt to re-establish the moth as an example, by undoing K's errors. He has succeeded to some degree. Please read this review: http://www.newscientist.com/article/mg19626330.500-reclaiming-the-peppered-moth-for-sci... It is evenhanded.

Attempted resurrection of the peppered moth

by dhw, Sunday, November 30, 2008, 08:16 (5836 days ago) @ David Turell

David has drawn our attention to the resurrection of the peppered moth. - Thank you for another interesting reference. I found the example in Peter Brooks' comment (turquoise moths gradually giving way to brown moths when the building was repainted) much simpler but just as illuminating. However, Brooks himself points out that while these examples are great illustrations of how natural selection works, they tell us nothing about the origin of species. This has provoked an irate reaction from two other respondents, who insist that such small changes over time do lead to new species. David, you yourself specify that the moth illustrates "changes in a species to respond to changes in the environment", which again is not the same thing as an endorsement of the whole theory of evolution. Perhaps you and our other scientists could comment.

Attempted resurrection of the peppered moth

by George Jelliss ⌂ @, Crewe, Sunday, November 30, 2008, 11:23 (5835 days ago) @ David Turell

This is a year-old article and has nothing new.
We have discussed the subject before: - http://www.agnosticweb.com/index.php?id=180

Attempted resurrection of the peppered moth

by David Turell @, Sunday, November 30, 2008, 22:39 (5835 days ago) @ George Jelliss

This is a year-old article and has nothing new.
> We have discussed the subject before:
> 
> http://www.agnosticweb.com/index.php?id=180 - George I know that, but I thought that since we have new readers and new members it might be good to review it again, with this evenhanded article, since Darwin aficionados had made such a 'raving model' about the moths in the past as showing a major example of evolution, until the errors in scientific method were shown. I know Darwin folks would like them back fully accepted, but all the moths show is microevolution, just as Darwin's finches' beaks do. We know about Reznick's guppies, and we know that there are mechanisms in organisms that drive rapid adaptation to enviromental change, change that is not by chance. - I hope this also answers dhw's request.

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