Genetic distance and FST

First off, I did a search for papers that used contextual analysis in some form or another to analyze experimental data. This is the list I came up with. It seems pretty pitiful for a statistical method that (1) works and (2) with the exception of Heisler and Damuth using a very small data set […]

Hiatus announcement and group selection 1 and 2.

The main piece of sad news this week is that I am just simply overwhelmed, and I am going to have to take a hiatus from writing. I will try to post occasionally, but look for once or twice a month rather than weekly. The reason is that I signed a book contract. I need […]

Variance in a structured world

So far I have been writing about things that in some sense I fancy I know something about the answer. Today, all I have is conundrum. The conundrum I have is this: one of the unspoken themes of this blog is that the “mean field approximation” is inadequate, and yet I am failing to provide […]

On partitioning fitness

I realized last week that I should probably explain more clearly what I meant by temporal components of fitness. As a result, a discussion of variance will have to wait until next week (I actually am flying to California for a National Academies Keck Futures Initiative meeting next week, so the next update may be […]

A conversation with a physicist: Some thoughts on fitness

This past week I went over to the university at a nearby city, and talked to some physicists interested in complex systems, and among other things, biology. As seems to be the nature of physicists turned biologists, I was impressed with some of their ideas, but also impressed with their lack of knowledge of biology, […]

Spider Group Selection

I could keep going on what an individual is, but at least at this point I have put out the main points I have been thinking about. It may be a subject we will return to in the future. What I really should talk about a bit is our recent paper, “Site-specific group selection drives […]

Individuals as Multispecies Entities

I am feeling a bit schizophrenic these days, splitting my time between developing models of species differentiation, experimental design to measure the genetics of species differentiation – yes, it can be done, and blogging. The last is a bit confusing because it starts me wondering, when did I become a philosopher.   And lets just say, […]

Heritability and the individual

First off, an ad from a former graduate student I used to work with. Josh Payne, who was an author on the speciation in continuous populations paper I discussed some time ago , is looking for students and a postdoc to study evolution and robustness. Check out his ad if you are interested. To summarize to […]

Selection and Individuality

Apparently I have shifted to an every other week post. It is not that I am lazy, just that my life is a bit chaotic. A week ago Saturday my daughter got married, and this week I am flying back to Brazil. Somewhere in the haze last weeks post simply didn’t happen. blame the lack […]

What is an individual (Part 2): An arbitrary definition

Last week I discussed why defining the individual is so difficult. Having put you in an existential crisis over whether or not you are an individual, it is time to pick up the pieces and see if we can come up with a useful phenotypically based definition of an individual. At the very least perhaps […]