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Absence of sex-differential brood raising by workers in Diacamma sp. from Japan
Authors:Kensuke Nakata
Affiliation:(1) Department of Zoology, Faculty of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan e-mail: ken@ecol.zool.kyoto-u.ac.jp, Tel.: +81-75-7534077, Fax: +81-75-7534101, JP
Abstract:To optimally allocate resources between workers, reproductive females, and males, ant workers have to be able to identify the sex of larvae and raise them differently. The ability of workers to discriminate between the sexes in the brood was tested in colonies of queenless ponerine ants, Diacamma sp., from Japan. The ratio of male eggs in the egg pile was increased experimentally. This manipulation resulted in a corresponding increase in the ratio of adult males, suggesting that Diacamma workers do not raise the sexes differently. Received: 4 November 1997 / Accepted after revision: 14 March 1998
Keywords:Sex discrimination  Sexual deception  Queenless ponerine  Diacamma
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