Bruce Walsh

I'm a professor of Ecology and Evolutionary Biology (with a joint appointment in the College of Public Health, and adjunct appointments in Plant Sciences, Animal Sciences, and Molecular and Cellular Biology) at the University of Arizona.

I'm a biologist with a strong interest in genetics, evolution, mathematical modeling, and statistics. I'm also an amateur Lepidopterist, having described around two dozen new species of moths and have several species named after me. The moth on the cover of Walsh and Lynch (2018) is Lithophane leeae, a pink moth named after my wife, Lee, who drives a bright pink pickup (the rabbit is also hers). The logic behind the cover layout is that while the book is rather technical in a number of places, the mathematics and statistics all have direct bearing on discovering the processes that shape organismal form and function (hence the intermixing of equations and pictures of organisms).

Lynch and Walsh (1998), aka Volume 1, covers the basic features of quantitative genetics (QG) has been updated (in two parts). The first part is Walsh, Visscher, and Lynch (2025), which covers QG up through GWAS and quantitative genomics. The second part, covering estimating estimation, prediction, and several closing multivariate topics (not covered in Walsh and Lynch 2018) is in preparation. Walsh and Lynch (2018), aka Volume 2, covers population genetics, selection response, and evolution quantitative genetics. Together, WVL (Parts I and II) and Walsh & Lynch span the whole enterprise of modern quantitative genetics, from statistic methods (such as FDR, Bayesian, meta-analysis, and mixed linear models) to genomics tools (such as marker-based estimation, GWAS, GWS, and functional genomics) that are reverent to human genetics, applied breeding (crop, tree, and animal), genetics, population genetics, evolution, ecology, and behavior.