Evolution of the monkeyflowers
Spring has finally come to us here in the North, and it's time to start thinking about planting. So, when I went to a seminar yesterday by John Willis, it w...
All posts tagged with Dobzhansky
A view on human differences
I'm doing some research for an essay, which relies quite a bit on the work of Dobzhansky and a few of his contemporaries. There are some great quotes that I...
Dobzhansky on Weidenreich's species concept
I found this passage in the discussion following T. Dale Stewart's paper, "The problem of the earliest claimed representatives of Homo sapiens," from the 19...
Genetic discord
I ran across this paper from a few years ago by John Avise and DeEtte Walker, which considers the implication of reticulation-based species concepts for mt...
Dobzhansky on continuing human evolution
On a bit of a writing junket for his book, Mankind Evolving, in 1963 Theodosius Dobzhansky put an essay in Current Anthropology titled "Anthropology and the...
Connectedness
Lawrence Krauss has commentary in the NY Times about the recent Kansas State Board of Education elections:
If hybrid zones are transient, what are the likely outcomes? One possibility is that hybrid zones represent secondary contact and neutral diffusion, that the...
Why are hybrids usually bad?
Two hypotheses, discussed by Burke and Arnold (2001):