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. 2013 Sep 15;216(18):3474–3482. doi: 10.1242/jeb.087403

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© 2013. Published by The Company of Biologists Ltd

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Fig. 2. — Effect of worker number on queen behavior. (A) Effect of manipulating worker number on brood-feeding behavior; x-axis, day of the experiment; y-axis, total number of brood-feeding events observed per day. Values are group means ± s.e.m.; 3-way ANOVA with stage of queen (early versus late), workers (+/−) and day (3,5,7) as factors: P_{workers(d.f.=1)}<0.0001, P_{workers×day(d.f.=1)}<0.05, other comparisons N.S. (B) Effect of manipulating worker number on queen egg-laying behavior; x-axis, group; y-axis, number of eggs in nests on day 7. Values shown are group means ± s.e.m.; letters represent results of post hoc pairwise t-tests; 2-way ANOVA with stage of queen and workers as factors: P_{stage(d.f.=1)}<0.01, P_{workers(d.f.=1)}<0.001, P_{stage×workers(d.f.=1)}<0.01. (C) Association between brood-feeding and reproductive behavior; x-axis, total number of brood-feeding events observed (summed across all days); y-axis, number of eggs in nests on day 7.