Effects of contact stimuli on the reproductive rate of <i>B. germanica</i> females.

<p>Newly-eclosed females were either reared in isolation (negative control), allowed to interact with glass beads that were moved to simulate social interaction (1), paired with a freshly-killed conspecific female that was replaced daily (2), allowed to interact with the antennae of a live, conspecific female whose body was tethered either outside the dish (3) or within the dish (4), or allowed to interact with the antennae of an American cockroach female whose body was outside the dish (5). Females paired with a conspecific female for the entire experiment represented the positive control. Mean basal oocyte length ± SE. ANOVA: <i>F</i>_{6, 136} = 25.97, <i>P</i><0.0001. Different letters above the bars indicate significant differences among treatments (LSD, <i>P</i><0.05).