Social Facilitation and Development in Ephestia kühniella Z

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Science  22 Feb 1974:
Vol. 183, Issue 4126, pp. 747-748
DOI: 10.1126/science.183.4126.747


Total time required for larval and pupal development in Ephestia kühniella Z. was significantly modified when habitable space of the food mass was increased by dilution with a nontoxic sawdust. Doubling the living space resulted in an increased developmental rate, presumably due to a reduction in the number of larval interactions. Tripling the living space, however, produced a somewhat unexpected delay in development, accompanied by a marked increase in variance about the means for both males and females.