Table 2: Interrupted matings of D. willistoni at
different times during copulation between flies from parental
populations (P) and mattings involving sterile hybrids (SH). Proportion
of females with visible seminal fluid mass inside the bursa (Prop SF)
and with sperm within the ejaculate (Prop Sperm) are shown. P-values are
from Fisher Exact test comparisons between proportions in parental
crosses (P) and crosses with sterile male hybrids (SH).