Summary The gut microbiota of social bees is relatively simple and dominated by a set of core taxa found consistently in individuals around the world. Yet, variation remains and can affect host health. We characterized individual‐ and regional‐scale variation in honeybee ( Apis mellifera ) gut microbiota from 64 colonies in North‐West England by sequencing the V4 region of the 16S rRNA gene and asked whether microbiota were in...

Variation in susceptibility to infection has a substantial genetic component in natural populations, and it has been argued that selection by pathogens may result in it having a simpler genetic architecture than many other quantitative traits. This is important as models of host–pathogen co‐evolution typically assume resistance is controlled by a small number of genes. Using the Drosophila melanogaster multiparent advanced int...