Abstract
Inquilines, workerless social parasites, frequently show advanced adaptations to their parasitic life style that indicate a long co-evolutionary history with their host. Ectatomma parasiticum, the first inquiline described in the poneromorph group, usurps established colonies of E. tuberculatum and produces only sexuals. In laboratory colonies, parasites were specifically attacked by the host workers, showing a failure in their social integration. Social interactions were frequent between parasites and their hosts, especially antennation, interpreted as attempts to promote colonial odor transfer. Inquilines destroyed eggs laid by the other queens (67 out of 209 eggs laid), including conspecific parasites, which is unusual. Such partial integration into the host colony and potential parasite virulence argue for a recent evolution of social parasitism in E. tuberculatum.
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References
Altmann J (1974) Observational study of behaviour: sampling methods. Behaviour 49:221–267
Bolton B (2003) Synopsis and classification of Formicidae. Mem Amer Entomol Inst 71:1–370
Bourke AFG, Franks NR (1991) Alternative adaptations, sympatric speciation and the evolution of parasitic, inquiline ants. Biol J Linn Soc 43:157–178
Brandt M, Foitzik S, Fischer-Blass B, Heinze J (2005) The coevolutionary dynamics of obligate ant social parasite systems—between prudence and antagonism. Biol Rev 80:251–267
Buschinger A (1986) Evolution of social parasitism in ants. Trends Ecol Evol 1:155–160
Buschinger A (1990) Sympatric speciation and radiative evolution of socially parasitic ants—heretic hypotheses and their factual background. Z Zool Syst Evol Forsch 28:241–260
Crozier RH, Dix MW (1979) Analysis of two genetic models for the innate components of colony odor in social Hymenoptera. Behav Ecol Sociobiol 4:217–224
Feitosa RM, Hora RR, Delabie JHC, Valenzuela J, Fresneau D (2008) A new social parasite in the ant genus Ectatomma F. Smith (Hymenoptera, Formicidae, Ectatomminae). Zootaxa 1713:47–52
Franks N, Blum M, Smith RK, Allies AB (1990) Behavior and chemical disguise of cuckoo ant Leptothorax kutteri in relation to its host Leptothorax acervorum. J Chem Ecol 16:1431–1444
Hölldobler B, Wilson EO (1977) The number of queens: an important trait in evolution. Naturwiss 64:8–15
Hora RR, Fénéron R, Valenzuela J, Favila ME, Fresneau D (2001) Queen-size dimorphism in the ant Ectatomma tuberculatum (Hymenoptera: Formicidae: Ponerinae). Sociobiology 38:407–420
Hora RR, Doums C, Poteaux C, Fénéron R, Valenzuela J, Heinze J, Fresneau D (2005a) Small queens in the ant Ectatomma tuberculatum: a new case of social parasitism. Behav Ecol Sociobiol 59:285–292
Hora RR, Vilela E, Fénéron R, Pezon A, Fresneau D, Delabie J (2005b) Facultative polygyny in Ectatomma tuberculatum (Formiciade: Ectatomminae). Insect Soc 52:194–200
Hora RR, Poteaux C, Doums C, Fresneau D, Fénéron R (2007) Egg cannibalism in a facultative polygynous ant: conflict for reproduction or strategy to survive? Ethology 113:909–916
Lambardi D, Dani FR, Turillazzi S, Boomsma JJ (2007) Chemical mimicry in an incipient leaf-cutting ant social parasite. Behav Ecol Sociobiol 61:843–851
Lenoir A, D’Ettorre P, Errard C, Hefetz A (2001) Chemical ecology and social parasitism in ants. Annu Rev Entomol 46:573–599
Monin T, Peeters C (1999) Dominance hierarchy and reproductive conflict among subordinates in a monogynous queenless ant. Behav Ecol 10:323–332
Passera L, Gilbert M, Aron S (2001) Social parasitism in ants: effects of the inquiline parasite Plagiolepis xene St. on queen distribution and worker production of its host Plagiolepis pygmaea Latr. Insect Soc 48:74–79
Rüppell O, Heinze J (1999) Alternative reproductive tactics in females: the case of size polymorphism in winged ant queens. Insect Soc 46:6–17
Sanetra M, Buschinger A (2000) Phylogenetic relationships among social parasites and their hosts in the ant tribe Tetramoriini (Hymenoptera: Formicidae). Eur J Entomol 97:95–117
Wilson EO (1971) The insect societies. Belknap Press of Harvard University Press, Cambridge
Zinck L, Jaisson P, Hora RR, Denis D, Poteaux C, Doums C (2007) The role of breeding system on ant ecological dominance: genetic analysis of Ectatomma tuberculatum. Behav Ecol 18:701–708
Acknowledgments
We are grateful to Jorge Valenzuela, Mario Favila, and the INECOL (Xalapa, Mexico) staff for their assistance during the fieldwork. R.R. Hora received financial support from CAPES, Project CAPES/COFECUB No. 244/98-II and FAPEMIG, Brazil.
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Hora, R.R., Blatrix, R., Fresneau, D. et al. Social interactions between an inquiline ant, Ectatomma parasiticum, and its host, Ectatomma tuberculatum (Formicidae, Ectatomminae). J Ethol 27, 285–288 (2009). https://doi.org/10.1007/s10164-008-0119-7
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DOI: https://doi.org/10.1007/s10164-008-0119-7