Male parentage in the five analyzed colonies of the neotropical bumblebee Bombus wilmattae. Shown is the proportion of males, which were either queen (Q) or worker (W) derived in the single as well as double mated (#) colonies. The proportion of male offspring is given without correction for assignment error (Ae; black bars) and with correction for assignment error (white bars). The numbers of analyzed males are shown in brackets.
Huth-Schwarz et al. Frontiers in Zoology 2011 8:13 doi:10.1186/1742-9994-8-13