Abstract
Winner and loser effects have now been documented in a number of species. To our knowledge, experimental work, however, has focused exclusively on pairwise interactions, and not the extent to which winner and loser effects impact hierarchy formation. We report the results of experimentally manipulated winner and loser effects on hierarchy formation in a socially living species, the green swordtail, Xiphophorus helleri. Our results demonstrate that randomly chosen winners in pairwise aggressive contests were more likely to emerge as top-ranked individuals in a hierarchy, whereas randomly chosen losers were more likely to emerge as the lowest-ranking individuals, and that 'winner-neutral-loser' hierarchies were significantly overrepresented.
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Selected References
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- Bonabeau E., Theraulaz G., Deneubourg J. L. Dominance orders in animal societies: the self-organization hypothesis revisited. Bull Math Biol. 1999 Jul;61(4):727–757. doi: 10.1006/bulm.1999.0108. [DOI] [PubMed] [Google Scholar]
- Earley Ryan L., Dugatkin Lee Alan. Eavesdropping on visual cues in green swordtail (Xiphophorus helleri) fights: a case for networking. Proc Biol Sci. 2002 May 7;269(1494):943–952. doi: 10.1098/rspb.2002.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hemelrijk CK. Towards the integration of social dominance and spatial structure. Anim Behav. 2000 May;59(5):1035–1048. doi: 10.1006/anbe.2000.1400. [DOI] [PubMed] [Google Scholar]
- Mesterton-Gibbons M. On the evolution of pure winner and loser effects: a game-theoretic model. Bull Math Biol. 1999 Nov;61(6):1151–1186. doi: 10.1006/bulm.1999.0137. [DOI] [PubMed] [Google Scholar]