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	Author	Dugatkin, L.A.
	Title	A comment on Lafleur et al.'s re-evaluation of mate-choice copying in guppies			Type	Journal Article
	Year	1998	Publication	Animal Behaviour.	Abbreviated Journal	Anim. Behav.
	Volume	56	Issue	2	Pages	513-514
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number				Serial	1812
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	Author	Dugatkin, L.A.; Alfieri, M.
	Title	Guppies and the TIT FOR TAT strategy: preference based on past interaction			Type	Journal Article
	Year	1991	Publication	Behavioral Ecology and Sociobiology	Abbreviated Journal	Behav. Ecol. Sociobiol.
	Volume	28	Issue	4	Pages	243-246
	Keywords
	Abstract	The evolution of cooperation requires either (a) nonrandom interactions, such that cooperators preferentially interact with other cooperators, or (b) conditional behaviors, such that individuals act cooperatively primarily towards other cooperators. Although these conditions can be met without assuming sophisticated animal cognition, they are more likely to be met if animals can remember individuals with whom they have interacted, associate past interactions with these individuals, and base future behavior on this information. Here we show that guppies (Poecilia reticulata), in the context of predator inspection behavior, can identify and remember (for at least 4 h) the “more cooperative” among two conspecifics and subsequently choose to be near these individuals in future encounters.
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	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
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	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3397
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	Author	Dugatkin, L.A.
	Title	Bystander effects and the structure of dominance hierarchies			Type	Journal Article
	Year	2001	Publication	Behavioral Ecology	Abbreviated Journal	Behav. Ecol.
	Volume	12	Issue	3	Pages	348-352
	Keywords
	Abstract	Prior modeling work has found that pure winner and loser effects (i.e., changing the estimation of your own fighting ability as a function of direct prior experience) can have important consequences for hierarchy formation. Here these models are extended to incorporate “bystander effects.” When bystander effects are in operation, observers (i.e., bystanders) of aggressive interactions change their assessment of the protagonists' fighting abilities (depending on who wins and who loses). Computer simulations demonstrate that when bystander winner effects alone are at play, groups have a clear omega (bottom-ranking individual), while the relative position of other group members remains difficult to determine. When only bystander loser effects are in operation, wins and losses are randomly distributed throughout a group (i.e., no discernible hierarchy). When pure and bystander winner effects are jointly in place, a linear hierarchy, in which all positions (i.e., {alpha} to {delta} when N = 4) are clearly defined, emerges. Joint pure and bystander loser effects produce the same result. In principle one could test the predictions from the models developed here in a straightforward comparative study. Hopefully, the results of this model will spur on such studies in the future.
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	Language		Summary Language		Original Title
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	Notes	10.1093/beheco/12.3.348			Approved	no
	Call Number	refbase @ user @			Serial	441
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	Author	Mesterton-Gibbons, M.; Dugatkin, L.A.
	Title	Toward a theory of dominance hierarchies: effects of assessment, group size, and variation in fighting ability			Type	Journal Article
	Year	1995	Publication	Behavioral Ecology	Abbreviated Journal	Behav. Ecol.
	Volume	6	Issue	4	Pages	416-423
	Keywords
	Abstract	We introduce assessment to the analysis of dominance hierarchies by exploring the effect of an evolutionarily stable fighting rule when there is variation in resource holding potential (RHP) and RHP is not a perfectly reliable predictor of the outcome of a fight. With assessment, the probability of a linear hierarchy decreases with group size but can remain appreciable for groups of up to seven or eight individuals, whereas it decreases virtually to zero if there is no assessment. The probability of a hierarchy that correlates perfectly with RHP is low unless group size is small.
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	Language		Summary Language		Original Title
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	Notes	10.1093/beheco/6.4.416			Approved	no
	Call Number	refbase @ user @			Serial	447
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	Author	Wilson, D.S.; Dugatkin, L.A.
	Title	A reply to Lombardi & Hurlbert			Type	Journal Article
	Year	1996	Publication	Animal Behaviour.	Abbreviated Journal	Anim. Behav.
	Volume	52	Issue	2	Pages	423-425
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	Abstract	No abstract
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	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
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	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	refbase @ user @			Serial	475
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	Author	Dugatkin, L.A.; Wilson, D.S.
	Title	Choice experiments and cognition: a reply to Lamprecht & Hofer			Type	Journal Article
	Year	1994	Publication	Animal Behaviour.	Abbreviated Journal	Anim. Behav.
	Volume	47	Issue	6	Pages	1459-1461
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	Abstract
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
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	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	refbase @ user @			Serial	479
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	Author	Mesterton-Gibbons, M.; Dugatkin, L.A.
	Title	Cooperation and the Prisoner's Dilemma: towards testable models of mutualism versus reciprocity			Type	Journal Article
	Year	1997	Publication	Animal Behaviour.	Abbreviated Journal	Anim. Behav.
	Volume	54	Issue	3	Pages	551-557
	Keywords
	Abstract	For the purpose of distinguishing between mutualism and reciprocity in nature, recent work on the evolution of cooperation has both oversimplifed and undersimplified the distinction between these two categories of cooperation. This article addresses the resulting issues of model testability, clarifies the role of time and argues that the category of `pseudo-reciprocity' is an unnecessary complication.
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	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	refbase @ user @			Serial	480
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	Author	Dugatkin, L.A.; Hoglund, J.
	Title	Delayed breeding and the evolution of mate copying in lekking species			Type	Journal Article
	Year	1995	Publication	Journal of Theoretical Biology	Abbreviated Journal	J. Theor. Biol.
	Volume	174	Issue	3	Pages	261-267
	Keywords
	Abstract	Recent experimental evidence indicates that females may copy the mate choice of others. Here, we present a model for the evolution of mate copying strategies in lekking species. In the model, all females (copiers and non-copiers) assess male quality, but a copier's assessment of a male's quality increases after males have mated with other females. The model demonstrates that mate copying is favored when breeding late in the season has a relatively high cost. We hope that our results will spur empirical work quantifying the time constraints associated with breeding, thus allowing more direct tests of the model's predictions.
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	refbase @ user @			Serial	482
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	Author	Dugatkin, L.A.
	Title	Tit for Tat, by-product mutualism and predator inspection: a reply to Connor			Type	Journal Article
	Year	1996	Publication	Animal Behaviour.	Abbreviated Journal	Anim. Behav.
	Volume	51	Issue	2	Pages	455-457
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	Abstract
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	refbase @ user @			Serial	487
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	Author	Godin, J.-G.J.; Herdman, E.J.E.; Dugatkin, L.A.
	Title	*Social influences on female mate choice in the guppy, Poecilia reticulata: generalized and repeatable trait-copying behaviour*			Type	Journal Article
	Year	2005	Publication	Animal Behaviour.	Abbreviated Journal	Anim. Behav.
	Volume	69	Issue	4	Pages	999-1005
	Keywords
	Abstract	In vertebrates, the mating preferences of individual females can be flexible and the probability of a female mating with a particular male can be significantly increased by her having previously observed another conspecific female affiliate and mate with that same male. In theory, such mate-choice-copying behaviour has potentially important consequences for both the genetic and social (`cultural') transmission of female mating preferences. For copying to result in the `cultural inheritance' of mating preferences, individual females must not only copy the mate choice decisions of other females but they also should tend to repeat this type of behaviour (i.e. make similar mating decisions) subsequently and to generalize their socially induced preference for a particular male to other males that share his distinctive characteristics. Here, we show experimentally that individual female guppies, Poecilia reticulata, not only copy the observed mating preferences of other females for particular males, but that the preference now assumed via copying is subsequently repeated and generalized to other males of a similar colour phenotype. These results provide empirical evidence for social enhancement of female preference for particular phenotypic traits of chosen males rather than for the particular males possessing those traits, and thus have important implications for our understanding of the role of social learning in the evolution of female mating preferences and of male epigamic traits.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	refbase @ user @			Serial	490
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