A phenotypic view of evolution Evolution in Structured Populations

Indirect effects, Individual Traits and Contextual Traits

Another pure essay post.  I was surprised that last weeks post didn’t generate any controversy.  I guess that that proves that the only people who read my posts are people who agree with me.  Sigh.  As the song goes “I’d love to change the world, but I don’t know what to do, so I’ll leave …

Measuring the heritability of contextual traits.

First a plug for an upcoming conference.  If you are interested in artificial life there is a conference, Alife 14, being run by, among others, a friend of mine, Hiroki Sayama.  There is one week left submit abstract, and a good time should be had by all.  .  This meeting will take place in New …

Griffing, Associate effects, and heritability.

Last week I talked about the effects of localized mating on heritability.  If you remember we discovered the effect was small, at least for weedy species like Plantago lanceolata.  This week I would instead like to talk about the effect of interaction structure on the heritability of traits.  Much of what I will be talking …

Mating structure, Interaction structure, and Selection structure

Many years ago when I was a graduate student, Mike Wade  suggested that we need to consider two distinct types of population structure, mating structure and interaction structure.  At the time I was quite naïve and I constructed my own meaning around that idea.  I doubt he was thinking about it in the way I …

Some Initial Thoughts on Breeding Designs

This week I don’t particularly have any papers to review, just some thoughts.  In the past few weeks I have been showing the power of contextual analysis as a means of measuring the strength of multilevel selection in natural populations.  The problem, of course, is that a selection analysis is, correctly, strictly a phenotypic analysis …

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