Abstract
The ecological success of ants results notably from their ability to derive several phenotypes from the same genotype. In higher ants, polyphenism can be extreme: high queen–worker size dimorphism and worker polymorphism allow for better success at colony founding by lone queens, better division of tasks, and ultimately access to new ecological niches. However in basal ants, polyphenism is much more limited, restricting them to narrow niches. It is often assumed that basal ants lack the ability to produce a pronounced polyphenism. In Amblyopone, most species nest and hunt centipedes in soil and leaf litter, and polyphenism is weak, e.g. A. pallipes. Here we studied A. australis, which forages and nests in rotten logs. Using analyses of morphometry and allometry, we showed that queen–worker dimorphism and worker polymorphism are much higher in A. australis than in A. pallipes. Workers of A. australis exhibit various sizes and shapes, and large individuals could be better adapted for digging galleries in rotten logs. Moreover, larger queens are probably more efficient during non-claustral colony foundation. We conclude that the evolution of advanced social traits typical of higher ants is also possible in basal ants, but it is not often selected for.



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Bolton B. and Fisher B.L. 2008. Afrotropical ants of the ponerine genera Centromyrmex Mayr, Promyopias Santschi gen. rev. and Feroponera gen. n., with a revised key to genera of African Ponerinae (Hymenoptera: Formicidae). Zootaxa 1929: 1-37
Brady S.G., Schultz T.R., Fisher B.L. and Ward P.S. 2006. Evaluating alternative hypotheses for the early evolution and diversification of ants. Proc. Nat. Acad. Sci. USA 103: 18172-18177
Brown W.L. 1960. Contributions toward a reclassification of the Formicidae. III. Tribe Amblyoponini (Hymenoptera). Bull. Mus. Comp. Zool. 122: 143-230
Crewe R., Peeters C. and Villet M. 1984. Frequency distribution of worker sizes in Megaponera foetens (Fabricius). S. Afr. J. Zool. 19: 247-248
Dejean A. and Lachaud J.P. 1994. Ecology and behavior of the seed-eating ponerine ant Brachyponera senaarensis (Mayr). Insect. Soc. 41: 191-210
Dejean A. and Fénéron R. 1996. Polymorphism and oligogyny in the ponerine ant Centromyrmex bequaerti (Formicidae: Ponerinae). Insect. Soc. 43: 87-99
Gotwald W.H. and Lévieux J. 1972. Taxonomy and biology of a new West African ant belonging to the genus Amblyopone (Hymenoptera: Formicidae). Ann. Entomol. Soc. Am. 65: 383-396
Haskins C.P. 1928. Notes on the behavior and habits of Stigmatomma pallipes Haldeman. J. N.Y. Entomol. Soc. 36: 179-184
Haskins C.P. 1970. Researches in the biology and social behavior of primitive ants. In: Development and Evolution of Behavior (L. Aronson, E. Tobach, D. Lehrman and J. Rosenblatt, Eds), Freeman, San Francisco. pp 355-388
Haskins C.P. 1978. Sexual calling behavior in highly primitive ants. Psyche 85: 407-416
Haskins C.P. and Haskins E.F. 1951. Note on the method of colony foundation of the ponerine ant Amblyopone australis Erichson. Am. Midl. Nat. 45: 432-445
Hölldobler B. and Wilson E.O. 1986. Ecology and behavior of the primitive cryptobiotic ant Prionopelta amabilis (Hymenoptera: Formicidae). Insect. Soc. 33: 45-58
Ito F. 1993a. Observation of group recruitment to prey in a primitive ponerine ant, Amblyopone sp. (reclinata group) (Hymenoptera: Formicidae). Insect. Soc. 40: 163-167
Ito F. 1993b. Social organization in a primitive ponerine ant: queenless reproduction, dominance hierarchy and functional polygyny in Amblyopone sp. (reclinata group). J. Nat. Hist. 27: 1315-1324
Ito F. 1993c. Queenless reproduction in a primitive ponerine ant Amblyopone bellii (Hymenoptera: Formicidae), in southern India. J. N.Y. Entomol. Soc. 101: 574-575
Ito F. 2010. Notes on the biology of the Oriental amblyoponine ant Myopopone castanea: queen-worker dimorphism, worker polymorphism and larval hemolymph feeding by workers (Hymenoptera: Formicidae). Entomol. Science (in press)
Longhurst C. and Howse P. 1979. Foraging, recruitment and emigration in Megaponera foetens (Fab.) (Hymenoptera: Formicidae) from the Nigerian Guinea savanna. Insect. Soc. 26: 204-215
Masuko K. 1993. Predation of centipedes by the primitive ant Amblyopone silvestrii. Bull. Assoc. Nat. Sci. Senshu 24: 35-44
Masuko K. 1996. Temporal division of labor among workers in the ponerine ant, Amblyopone silvestrii (Hymenoptera: Formicidae). Sociobiology 28: 131-151
Masuko K. 2003. Analysis of brood development in the ant Amblyopone silvestrii, with special reference to colony bionomics. Entomol. Science 6: 237-245
Masuko K. 2010. Nest density and distribution of subterranean ants in an evergreen broadleaf forest in Japan with special reference to Amblyopone silvestrii (Hymenoptera: Formicidae). Entomol. Science (in press)
Molet M., Peeters C. and Fisher B.L. 2007a. Permanent loss of wings in queens of the ant Odontomachus coquereli from Madagascar. Insect. Soc. 54: 174-182
Molet M., Peeters C. and Fisher B.L. 2007b. Winged queens replaced by reproductives smaller than workers in Mystrium ants. Naturwissenschaften 94: 280-287
Molet M., Peeters C., Follin I. and Fisher B.L. 2007c. Reproductive caste performs intranidal tasks instead of workers in the ant Mystrium oberthueri. Ethology 113: 721-729
Molet M., Fisher B., Ito F. and Peeters C. 2009. Shift from independent to dependent colony foundation and evolution of ‘multi-purpose’ ergatoid queens in Mystrium ants (subfamily Amblyoponinae). Biol. J. Linn. Soc. 98: 198-207
Paul J. and Gronenberg W. 1999. Optimizing force and velocity: mandible muscle fibre attachments in ants. J. Exp. Biol. 202: 797-808
Passera L. and Aron S. 2005. Les Fourmis. Comportement, Organisation Sociale et Evolution. Presses Scientifiques du CNRC, Ottawa, Canada. 480 pp
Peeters C. 1987. The diversity of reproductive systems in ponerine ants. In: Chemistry and Biology of Social Insects (J. Eder and H. Rembold, Eds), Verlag J. Peperny, Munich. pp 253-254
Peeters C. 1997. Morphologically “primitive” ants: comparative review of social characters, and the importance of queen-worker dimorphism. In: The Evolution of Social Behavior in Insects and Arachnids (J.C. Choe and B.J. Crespi, Eds), Cambridge University Press, Cambridge. pp 372-391
Peeters C. and Molet M. 2010. Colonial reproduction and life histories. In: Ant Ecology (L. Lach, C. Parr and K. Abbott, Eds), Oxford University Press, New York. pp 159-176
Shattuck S.O. 1999. Australian Ants—Their Biology and Identification. CSIRO Publishing, Melbourne. 256 pp
Thorne B.L. and Traniello J.F.A. 2003. Comparative social biology of basal taxa of ants and termites. Annu. Rev. Entomol. 48: 283-306
Traniello J. 1982. Population structure and social organization in the primitive ant Amblyopone pallipes (Hymenoptera: Formicidae). Psyche 89: 65-80
Villet M. 1990. Division of labour in the Matabele ant Megaponera foetens (Fabr.) (Hymenoptera Formicidae). Ethol. Ecol. Evol. 2: 397-417
Warton D.I. and Weber N.C. 2002. Common slope tests for bivariate errors-in-variables models. Biom. J. 44: 161-174
Wheeler W.M. 1933. Colony-Founding among Ants with an Account of Some Primitive Australian Species. Harvard University Press, Cambridge. 179 pp
Wheeler W.M. 1936. Ecological relations of ponerine and other ants to termites. Proc. Am. Acad. Arts Sci. 71: 159-243
Wilson E.O. 1971. The Insect Societies. Harvard University Press, Cambridge. 548 pp
Acknowledgments
We are grateful to Thibaud Monnin for collecting colonies of Amblyopone pallipes. We thank Fuminori Ito, Keiichi Masuko and Thibaud Monnin for valuable comments on this manuscript. Preliminary data were obtained while C. Peeters was in Ross Crozier’s laboratory, funded by the Australian Research Council (1985–1989). We are grateful to M. Bonner and the Caloundra City Council for allowing collection in Mary Cairncross Park. An export permit was issued by Environment Australia. Travelling funds were obtained from the CNRS (Direction Relations Européennes et Internationales).
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Peeters, C., Molet, M. Evolution of advanced social traits in phylogenetically basal ants: striking worker polymorphism and large queens in Amblyopone australis . Insect. Soc. 57, 177–183 (2010). https://doi.org/10.1007/s00040-010-0067-4
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DOI: https://doi.org/10.1007/s00040-010-0067-4


