Low cost of reproduction in female stalk eyed flies, Cyrtodiopsis dalmanni.

Piedad Reguera, Andrew Pomiankowski, Kevin Fowler, Tracey Chapman

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

We investigated the effect of exposure to males on female longevity and egg production in the stalk-eyed fly, Cyrtodiopsis dalmanni. In this species, females typically mate several times each morning over a lifetime that can span several months. We hypothesised that high costs of mating with males would be incompatible with the life history of this species. We predicted that 1) female longevity costs of exposure to males would be low, and 2) that the magnitude of mating-induced fecundity increases in C. dalmanni, if present, would also be low. We tested the predictions by comparing the longevity and lifetime fecundity of virgin and mated females. In line with prediction 1), the longevity difference between virgin and fully reproductive females was small and of borderline significance. In line with prediction 2), egg production was not significantly higher in females continually exposed to males than for virgin females. Our results suggest that costs of reproduction resulting from exposure to males are low in species that mate promiscuously at high rates.
Original languageEnglish
Pages (from-to)103-108
Number of pages6
JournalJournal of Insect Physiology
Volume50
Issue number1
DOIs
Publication statusPublished - Jan 2004

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