Sperm protection and mate assessment in the bushcricket Coptaspis sp. 2

Article Abstract:

Lengthy copulations in the bushcricket Coptaspis sp. 2 were studied to elucidate their mate assessment and sperm protection functions. Results of the experimental manipulation of the spermatophore attachment duration demonstrated that the latter is linked to the quantity of transferred sperm, thereby indicating that the purpose of copulation duration is to guarantee that the transfer of the male's ejaculate is consummated. Compared to virgin females, copulation of males with nonvirgins is longer.

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Male age, mating status and nuptial gift quality in a bushcricket

Article Abstract:

The effects of male age and male history on male reproductive investment are examined. It is concluded that the female E. ephippiger probably prefer the songs of younger males because this preference correlates with male mating history.

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Variation in the cost to females of the sexual conflict over mating in the seed bug, Lygaeus equestris

Article Abstract:

A study on reproductive conflict mating between males and females with relation to frequency of mating in seed bug, Lygaeus equestris, is presented.

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