Research

Mating frequency and inclusive fitness in Drosophila melanogaster


Reference:

Priest, N. K., Galloway, L. F. and Roach, D. A., 2008. Mating frequency and inclusive fitness in Drosophila melanogaster. American Naturalist, 171 (1), pp. 10-21.

Related documents:

[img]
Preview
PDF (Priest_et_al.pdf) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (204kB) | Preview

    Official URL:

    http://dx.doi.org/10.1086/523944

    Abstract

    In many species, increased mating frequency reduces maternal survival and reproduction. In order to understand the evolution of mating frequency, we need to determine the consequences of increased mating frequency for offspring. We conducted an experiment in Drosophila melanogaster in which we manipulated the mating frequency of mothers and examined the survival and fecundity of the mothers and their daughters. We found that mothers with the highest mating frequency had accelerated mortality and more rapid reproductive senescence. On average, they had 50% shorter lives and 30% lower lifetime reproductive success (LRS) than did mothers with the lowest mating frequency. However, mothers with the highest mating frequency produced daughters with 28% greater LRS. This finding implies that frequent mating stimulates crossgenerational fitness trade-offs such that maternal fitness is reduced while offspring fitness is enhanced. We evaluate these results using a demographic metric of inclusive fitness. We show that the costs and benefits of mating frequency depend on the growth rate of the population. In an inclusive fitness context, there was no evidence that increased mating frequency results in fitness costs for mothers. These results indicate that cross-generational fitness trade-offs have an important role in sexual selection and life-history evolution.

    Details

    Item Type Articles
    CreatorsPriest, N. K., Galloway, L. F. and Roach, D. A.
    DOI10.1086/523944
    DepartmentsFaculty of Science > Biology & Biochemistry
    Research CentresCentre for Mathematical Biology
    Publisher StatementPriest_et_al._Am_Nat_revisions.doc: ©Chicago University Press. Priest, N., Galloway, L. F. and Roach, D. A., 2008. Mating Frequency and Inclusive Fitness in Drosophila melanogaster. The American Naturalist, 171 (1), pp. 10-21.; Priest_et_al.pdf: ©Chicago University Press. Priest, N., Galloway, L. F. and Roach, D. A., 2008. Mating Frequency and Inclusive Fitness in Drosophila melanogaster. The American Naturalist, 171 (1), pp. 10-21.
    RefereedYes
    StatusPublished
    ID Code27504

    Export

    Actions (login required)

    View Item

    Document Downloads

    More statistics for this item...