Records |
Author |
Hasenjager, M.J.; Dugatkin, L.A. |
Title |
Social Network Analysis in Behavioral Ecology |
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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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Author |
Earley, R.L.; Druen, M.; Alan Dugatkin, L. |
Title |
Watching fights does not alter a bystander's response towards naive conspecifics in male green swordtail fish, Xiphophorus helleri |
Type |
Journal Article |
Year |
2005 |
Publication ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
Volume |
69 |
Issue |
5 |
Pages |
1139-1145 |
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Abstract |
Bystanders are capable of extracting cues from signalling interactions between others and appear to use information gained via eavesdropping when confronted with the watched individuals. A question that has gained little attention is whether observing fights affects bystander behaviour outside the context of interacting with the watched individuals. Our aim was to determine whether watching fights elicits general changes in bystander aggression levels in Xiphophorus helleri. We manipulated the bystanders' ability to witness encounters using clear, one-way-mirror and opaque partitions. After watching (or not watching) an initial contest, the bystanders were pitted against naive conspecifics instead of the animals they had seen fight. Observing fights did not alter the bystanders' propensity to initiate aggression, escalate, or win against naive individuals, indicating that bystanders do not experience general changes in aggressive behaviour after watching a fight. Earlier work in this species, however, has shown that bystanders respond in predictable ways to individuals they have witnessed winning or losing a fight. Taken together, these data support the notion that bystanders consistently modify their behaviour towards previously watched winners or losers in response to information gained via eavesdropping. We discuss our results in light of some recent work on the behavioural and endocrinological responses triggered by watching fights and suggest that comparative approaches to understanding networking phenomena may be productive. |
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refbase @ user @ |
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394 |
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Author |
Wilson, D.S.; Dugatkin, L.A. |
Title |
A reply to Lombardi & Hurlbert |
Type |
Journal Article |
Year |
1996 |
Publication ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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52 |
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2 |
Pages |
423-425 |
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refbase @ user @ |
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475 |
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Author |
Dugatkin, L.A.; Wilson, D.S. |
Title |
Choice experiments and cognition: a reply to Lamprecht & Hofer |
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Journal Article |
Year |
1994 |
Publication ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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47 |
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6 |
Pages |
1459-1461 |
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refbase @ user @ |
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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 ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
Volume |
54 |
Issue |
3 |
Pages |
551-557 |
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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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no |
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refbase @ user @ |
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480 |
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Author |
Dugatkin, L.A. |
Title |
Tit for Tat, by-product mutualism and predator inspection: a reply to Connor |
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Journal Article |
Year |
1996 |
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Animal Behaviour. |
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Anim. Behav. |
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51 |
Issue |
2 |
Pages |
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 |
Year |
2005 |
Publication ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
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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refbase @ user @ |
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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 ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
Volume |
49 |
Issue |
6 |
Pages |
1427-1433 |
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Abstract |
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 ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
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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Author |
Dugatkin, L.A. |
Title |
A comment on Lafleur et al.'s re-evaluation of mate-choice copying in guppies |
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Year |
1998 |
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Animal Behaviour. |
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Anim. Behav. |
Volume |
56 |
Issue |
2 |
Pages |
513-514 |
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1812 |
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