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. 2021 Oct 28;11:21252. doi: 10.1038/s41598-021-00674-z

Figure 2.

Figure 2

Colony size at (A) 14 months and (B) 20 months after two soil treatments. (average number of individuals ± SE, king and queen not presented). Total colony growth in sand condition was marginal (× 1.26 population increase, P = 0.032, t test), while substantial in organic soil (× 9.65 population increase, P < 0.001, t test). Comparisons of the average number of individuals for each independent castes at 20 month were all significantly higher in organic soil than in sand (t test, α = 0.05).