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Science 22 February 1974:
Vol. 183. no. 4126, pp. 747 - 748
DOI: 10.1126/science.183.4126.747
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Articles

Social Facilitation and Development in Ephestia kühniella Z

William B. Cotter 1

1 Department of Anatomy, University of Kentucky, Lexington 40506

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.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)