Fig 1.
A worker of Tetramorium tsushimae transporting a seed of Lamium amplexicaule into its nest.
Fig 2.
Illustration of the experimental apparatus.
Fig 3.
Effects of treatments on (a) the sum of the number of seeds sucked by two burrower bugs (left to right; n = 18, 14, 13, 16 trials) and (b) their feeding duration per sucked seed per two burrower bugs per hour (left to right; n = 7, 9, 4, 12 trials).
Black and grey bars denote the treatment and control, respectively, and significant differences between them are denoted by asterisks. Bars indicate the standard errors.
Fig 4.
The relationship between feeding duration (min) and seed mass in the seeds sucked by (a) nymphal and (b) adult burrower bugs.
The data on intact seeds (n = 18) are shown by the white plots. Note that the same data are used for the intact seeds in both (a) and (b).