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Table I

Recruitment and foraging distances for M. mandacaia trial. For comparison with van Nieuwstadt and Iraheta (), we give distances over which 75%, 95%, and 100% of total foraging activity occurred. Morphometric data show the average ± SD of head width (HW), interocular distance (ID), and intertegular distance (IT). Body size measurements give the mean ± 1 standard deviation of continuous, overlapping distributions.

Colony Maximum 50% 75% 95% 100% Body size
recruitment foraging foraging foraging foraging measurements
distance distance distance distance distance
(m) (m) (m) (m) (m) HW
ID
IT
1 1220 1000 900 1640 2100 3.8 ± 0.1 mm
(large 2.4 ± 0.1 mm
foragers) 2.9 ± 0.1 mm
2 620 500 900 1200 1840 3.4 ± 0.1 mm
(small 2.3 ± 0.1 mm
foragers) 2.6 ± 0.1 mm
3 1020 600 880 1180 1560 3.5 ± 0.1 mm
(small 2.3 ± 0.1 mm
foragers) 2.6 ± 0.1 mm