The relationship between individual fat content (as a proportion of total dry body mass) and the relative depth at which the individual was collected (1 being deepest and 0 being the surface) for five colonies of <i>Dinoponera australis</i> (each colony is coded by a different color).
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Abstract
<p>Colonies differed in the slope of the relationship between fat content and relative depth (F<sub>4,267</sub> = 3.41, P = 0.01), but the relationship is highly significant (F<sub>1,267</sub> = 137.93, P<0.0001) and colonies did not differ in average individual fat content (F<sub>4,267</sub> = 1.27, P = 0.28). The inset shows brood (larvae and pupae) as a function of depth; only the deepest chambers contained brood.</p