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Table 1 Differences in gaster size and ovary development across three castes of A. gracilipes

From: Worker reproduction of the invasive yellow crazy ant Anoplolepis gracilipes

Female castes Ants dissected Gaster width (mm) Number of ovarioles/individual Number of yolky oocytes per ovariole Total number of yolky oocytes
Normal workers n = 90 1.09 ± 0.03 [0.90–1.30] 1.62 ± 0.12 [1–4] 1.73 ± 0.12 [1–4] 2.81 ± 0.31 [1–8]
Physogastric workers n = 90 1.53 ± 0.02 [1.40–1.70] 2.51 ± 0.09 [2–5] 4.46 ± 0.10 [1–9] 11.21 ± 0.48 [6–27]
Z   -5.475 −5.652 −10.416 -8.290
P   * < 0.01 * < 0.01 * < 0.01 * < 0.01
Queens n = 9 2.77 ± 0.06 [2.60–3.00] 47.33 ± 1.23 [44–52] 2.00 ± 0.04 [1–3] 94.50 ± 6.63 [69–116]
  1. Notes: Data are presented as mean ± standard deviation [range]; *p, statistically significant using Mann-Whitney U-test; Queens were not subjected to analysis due to its small sample size