Clutch size: A major sex ratio determinant in fig pollinating wasps?

Finn Kjellberg, Judith L Bronstein, Glen van Ginkel, Jaco M. Greeff, Jamie C. Moore, Nathalie Bossu-Dupriez, Malia Chevolot, Georges Michaloud

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Under local mate competition, sex ratio theory predicts that increasing numbers of ovipositing females (foundresses) on a site should lead to higher proportions of males in their broods. Fig pollinators have confirmed this prediction. It is also predicted that with decreasing clutch size, solitary foundresses should produce increasing proportions of sons. We show this to be true. Further, when several females compete, brood size decreases. As a result, the proportion of males increases, and this could provide a mechanistic explanation of sex ratio response to numbers of colonizing females. Therefore, sex ratio data on fig wasps need to be reassessed to determine whether females 'count' other foundresses, as is generally accepted, or whether they simply 'count' the number of eggs that they lay.

Original languageEnglish (US)
Pages (from-to)471-476
Number of pages6
JournalComptes Rendus - Biologies
Volume328
Issue number5
DOIs
StatePublished - May 2005

Fingerprint

Clutch Size
Ficus
Wasps
Clutches
Sex Ratio
figs
pollinating insects
clutch size
sex ratio
Agaonidae
Eggs
prediction

Keywords

  • Brood size
  • Evolution
  • Ficus
  • Fig wasps
  • Sex ratio

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Developmental Biology

Cite this

Kjellberg, F., Bronstein, J. L., van Ginkel, G., Greeff, J. M., Moore, J. C., Bossu-Dupriez, N., ... Michaloud, G. (2005). Clutch size: A major sex ratio determinant in fig pollinating wasps? Comptes Rendus - Biologies, 328(5), 471-476. https://doi.org/10.1016/j.crvi.2004.11.005

Clutch size : A major sex ratio determinant in fig pollinating wasps? / Kjellberg, Finn; Bronstein, Judith L; van Ginkel, Glen; Greeff, Jaco M.; Moore, Jamie C.; Bossu-Dupriez, Nathalie; Chevolot, Malia; Michaloud, Georges.

In: Comptes Rendus - Biologies, Vol. 328, No. 5, 05.2005, p. 471-476.

Research output: Contribution to journalArticle

Kjellberg, F, Bronstein, JL, van Ginkel, G, Greeff, JM, Moore, JC, Bossu-Dupriez, N, Chevolot, M & Michaloud, G 2005, 'Clutch size: A major sex ratio determinant in fig pollinating wasps?', Comptes Rendus - Biologies, vol. 328, no. 5, pp. 471-476. https://doi.org/10.1016/j.crvi.2004.11.005
Kjellberg, Finn ; Bronstein, Judith L ; van Ginkel, Glen ; Greeff, Jaco M. ; Moore, Jamie C. ; Bossu-Dupriez, Nathalie ; Chevolot, Malia ; Michaloud, Georges. / Clutch size : A major sex ratio determinant in fig pollinating wasps?. In: Comptes Rendus - Biologies. 2005 ; Vol. 328, No. 5. pp. 471-476.
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