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Variation of Sperm Precedence in the Rove Beetle Aleochara curtula (Coleoptera: Staphylinidae)

T. Benken, A. Knaak, C. Gack, M. Eberle and K. Peschke
Behaviour
Vol. 136, No. 9, Genetic Analysis of Social Systems (Oct., 1999), pp. 1065-1077
Published by: Brill
Stable URL: http://www.jstor.org/stable/4535661
Page Count: 13
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Variation of Sperm Precedence in the Rove Beetle Aleochara curtula (Coleoptera: Staphylinidae)
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Abstract

In order to quantify the outcome of sperm competition in the mating system of the rove beetle Aleochara curtula we performed three different mating experiment series. Paternity was established by DNA fingerprinting with oligonucleotide probes. We found a precedence of the last male with a proportion of eggs fathered by the last male of 87% (median). Nevertheless, we observed a large variation of ${\rm P}_{2}\text{-values}$ in A. curtula and cases of mixed paternity were documented as well as cases of 100% or 0% paternity of the last male. The variation of ${\rm P}_{2}\text{-values}$ correlates with the efficiency of spermatophore and sperm transfer.

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