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1 May 2004 COLONY SEX RATIOS IN THE FACULTATIVELY POLYGYNOUS ANT PHEIDOLE PALLIDULA: A REANALYSIS WITH NEW DATA
Ken R. Helms, Denis Fournier, Laurent Keller, Luc Passera, Serge Aron
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Abstract

A recent study by Fournier et al. (2003) provides important new information on sex allocation in the ant Pheidole pallidula, and proposes a new scenario for sex-ratio evolution in P. pallidula and similar species. However, Helms proposed to the authors that two important conclusions of the study were questionable because of potential problems with the analyses. Here we provide new data and a reanalysis that strengthens the conclusion that colony sex ratio is associated with breeding system (i.e., polygyny or monogyny). However, the proposal that colonies shift from monogyny to polygyny when they become larger and more productive is weakened because there is substantial overlap in productivity between monogynous and polygynous colonies.

Ken R. Helms, Denis Fournier, Laurent Keller, Luc Passera, and Serge Aron "COLONY SEX RATIOS IN THE FACULTATIVELY POLYGYNOUS ANT PHEIDOLE PALLIDULA: A REANALYSIS WITH NEW DATA," Evolution 58(5), 1141-1142, (1 May 2004). https://doi.org/10.1554/03-648
Received: 6 November 2003; Accepted: 2 February 2004; Published: 1 May 2004
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KEYWORDS
ants
colony productivity
Pheidole pallidula
queen-worker conflict
sex ratio
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