| Records |
| Author |
Hasenjager, M.J.; Dugatkin, L.A. |
| Title |
Social Network Analysis in Behavioral Ecology |
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Book Chapter |
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Animal personalities; Animal social networks; Collective behavior; Cooperation; Dynamic networks; Emergent properties; Network theory; Social behavior; Social learning; Social structure |
| Abstract |
Abstract In recent years, behavioral ecologists have embraced social network analysis (SNA) in order to explore the structure of animal societies and the functional consequences of that structure. We provide a conceptual introduction to the field that focuses on historical developments, as well as on novel insights generated by recent work. First, we discuss major advances in the analysis of nonhuman societies, culminating in the use of SNA by behavioral ecologists. Next, we discuss how network-based approaches have enhanced our understanding of social structure and behavior over the past decade, focusing on: (1) information transmission, (2) collective behaviors, (3) animal personality, and (4) cooperation. These behaviors and phenomena possess several features—e.g., indirect effects, emergent properties—that network analysis is well equipped to handle. Finally, we highlight recent developments in SNA that are allowing behavioral ecologists to address increasingly sophisticated questions regarding the structure and function of animal sociality. |
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Academic Press |
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Advances in the Study of Behavior |
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Equine Behaviour @ team @ Hasenjager |
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5863 |
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Wilson, D.S.; Dugatkin, L.A. |
| Title |
A reply to Lombardi & Hurlbert |
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Journal Article |
| Year |
1996 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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52 |
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2 |
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423-425 |
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no |
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refbase @ user @ |
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475 |
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Dugatkin, L.A.; Wilson, D.S. |
| Title |
Choice experiments and cognition: a reply to Lamprecht & Hofer |
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Journal Article |
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1994 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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47 |
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6 |
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1459-1461 |
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no |
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refbase @ user @ |
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479 |
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Mesterton-Gibbons, M.; Dugatkin, L.A. |
| Title |
Cooperation and the Prisoner's Dilemma: towards testable models of mutualism versus reciprocity |
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Journal Article |
| Year |
1997 |
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Animal Behaviour. |
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Anim. Behav. |
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54 |
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3 |
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551-557 |
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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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refbase @ user @ |
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480 |
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Dugatkin, L.A. |
| Title |
Tit for Tat, by-product mutualism and predator inspection: a reply to Connor |
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Journal Article |
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1996 |
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Animal Behaviour. |
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Anim. Behav. |
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51 |
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2 |
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455-457 |
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refbase @ user @ |
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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 |
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Journal Article |
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2005 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
69 |
Issue |
4 |
Pages |
999-1005 |
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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. |
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no |
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refbase @ user @ |
Serial |
490 |
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| Author |
Godin, J.-G.J.; Dugatkin, L.A. |
| Title |
Variability and repeatability of female mating preference in the guppy |
Type |
Journal Article |
| Year |
1995 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
49 |
Issue |
6 |
Pages |
1427-1433 |
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Models of inter-sexual selection generally assume heritable variation in mating preferences among females within populations. However, little is known about the nature of such variation. The aim of this study was to characterize quantitatively the phenotypic variation in female preference for a sexually selected male trait, body colour pattern, within a population of the Trinidadian guppy, Poecilia reticulata. Significantly more female guppies preferred the more brightly coloured of two similar-sized males presented simultaneously as potential mates. Mating preference scores for individual females were significantly and positively correlated between two repeated trials on successive days. Females were thus individually consistent in their particular choice of mates, and the calculated repeatability of their mating preference was relatively high. Notwithstanding the aforementioned, significant variation existed among females in the degree of their preference for brightly coloured males. Individual mating preference scores were not normally distributed, but were rather skewed to the right (i.e. towards greater values). These results suggest that additive genetic variation for mating preferences based on male colour pattern is maintained, and the opportunity for the further evolution of both bright male colour patterns and female preference for this trait appears to exist in the study population from the Quare River, Trinidad. |
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refbase @ user @ |
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492 |
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| Author |
Chase, I.D.; Bartolomeo, C.; Dugatkin, L.A. |
| Title |
Aggressive interactions and inter-contest interval: how long do winners keep winning? |
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Journal Article |
| Year |
1994 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
48 |
Issue |
2 |
Pages |
393-400 |
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Abstract. Considerable evidence across many taxa demonstrates that prior social experience affects the outcome of subsequent aggressive interactions. Although the 'loser effect', in which an individual losing one encounter is likely to lose the next, is relatively well understood, studies of the 'winner effect', in which winning one encounter increases the probability of winning the next, have produced mixed results. Earlier studies differ concerning whether a winner effect exists, and if it does, how long it lasts. The variation in results, however, may arise from different inter-contest intervals and procedures for selecting contestants employed across previous studies. These methodological differences are addressed through a series of experiments using randomly selected winners and three different inter-contest intervals in the pumpkinseed sunfish, Lepomis gibbosus. The results indicate that a winner effect does in fact exist in pumpkinseed sunfish, but that it only lasts between 15 and 60 min. Based on these results, predictions about the behavioural dynamics of hierarchy formation are discussed, and it is suggested that it may be impossible, in principle, to predict the outcome of dominance interactions between some individuals before they are actually assembled to form a group. Finally, the possible mechanisms underlying the winner effect are explored. |
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refbase @ user @ |
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873 |
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Dugatkin, L.A. |
| Title |
A comment on Lafleur et al.'s re-evaluation of mate-choice copying in guppies |
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Journal Article |
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1998 |
Publication |
Animal Behaviour. |
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Anim. Behav. |
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56 |
Issue |
2 |
Pages |
513-514 |
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1812 |
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| Author |
Dugatkin, L.A. |
| Title |
Bystander effects and the structure of dominance hierarchies |
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Journal Article |
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2001 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
Behav. Ecol. |
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12 |
Issue |
3 |
Pages |
348-352 |
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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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10.1093/beheco/12.3.348 |
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441 |
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