REPRODUCTIVE STRATEGIES OF THE EXOTIC PHARAOH ANT, MONOMORIUM-PHARAONIS (L) (HYMENOPTERA, FORMICIDAE) IN BRAZIL
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1993-08-01
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Int Science Services/balaban Publishers
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The production of sexual forms in laboratory colonies of Monomorium pharaonis was followed over a 19-month period. Cycles of production occurred at intervals of 4 months, with male investment inversely proportional to the number of gynes produced. There was a tendency for colonies to produce only males or females as total sexual production increased. Sperm counts of known-aged males suggest that they mate twice, in contrast to European populations. Sex-ratio was heavily female-biased, contrary to predictions for polygynous ant species.
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Invertebrate Reproduction & Development. Rehovot: Int Science Services/balaban Publishers, v. 23, n. 2-3, p. 235-238, 1993.
