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| Author |
Stephens, D.W.; Anderson, J.P.; Benson, K.E. |
| Title |
On the spurious occurrence of Tit for Tat in pairs of predator-approaching fish |
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Journal Article |
| Year |
1997 |
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Animal Behaviour. |
Abbreviated Journal  |
Anim. Behav. |
| Volume |
53 |
Issue |
1 |
Pages |
113-131 |
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An experimental analysis of the movements of predator-approaching fish is presented. The experiments evaluated two competing hypotheses. (1) Predator-approaching fish play the game-theoretical strategy Tit for Tat. Alternatively, (2) the movements of predator-approaching fish superficially resemble Tit for Tat, because fish independently orient to a predator and simultaneously attempt to stay close together. Experimental subjects were mosquito fish,Gambusia affinisapproaching a green sunfish,Lepomis cyanellusTwo experiments were performed. Experiment 1 replicated results of Milinski (1987) and Dugatkin (1991), showing thatGambusiacome closer to a visible predator when a mirror is oriented parallel to their direction of travel. Experiment 2 attempted to separate the effects of common orientation and social cohesion in accounting for the frequency of Tit-for-Tat-like motions in pairs of predator-approachingGambusia. Results of experiment 2 suggest that a simple additive combination of the effects of (1) social cohesion in the absence of a visible predator and (2) orientation to a visible predator in the absence of a visible companion can account for the observed frequency of Tit-for-Tat-like motions for pairs of predator-approachingGambusia. It is concluded that predator approach in shoaling fishes is probably a simple by-product mutualism, rather than cooperation maintained by reciprocity in a Prisoner's Dilemma. |
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486 |
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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 |
| Year |
1996 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
51 |
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2 |
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455-457 |
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487 |
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Hare, J.F. |
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Lee Alan Dugatkin, Principles of Animal Behavior, Norton, New York (2004) Pp. xx+596. Price $80.00 |
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Journal Article |
| Year |
2005 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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69 |
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1 |
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247-248 |
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489 |
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Godin, J.-G.J.; Herdman, E.J.E.; Dugatkin, L.A. |
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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 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
69 |
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4 |
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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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490 |
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Godin, J.-G.J.; Dugatkin, L.A. |
| Title |
Variability and repeatability of female mating preference in the guppy |
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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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492 |
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Feh, C. |
| Title |
Alliances between stallions are more than just multimale groups: reply to Linklater & Cameron (2000) |
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Journal Article |
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2001 |
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Animal Behaviour. |
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Anim. Behav. |
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61 |
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F27-F30 |
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513 |
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WAYNE L. LINKLATER & ELISSA Z. CAMERON |
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Distinguishing cooperation from cohabitation: the feral horse case |
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Journal Article |
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2000 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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59 |
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F17-F21 |
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514 |
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Rutberg, A.T.; Keiper, R.R. |
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Proximate causes of natal dispersal in feral ponies: some sex differences |
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Journal Article |
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1993 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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46 |
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5 |
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969-975 |
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Abstract. Fifteen years of data on natal dispersal age and the context of dispersal for the feral ponies of Assateague Island, Maryland are presented. Ninety-seven per cent of males and 81% of females dispersed from their natal groups by 5 years of age. For animals that left their natal group, average age of dispersal was 20[middle dot]8 months for males and 24[middle dot]6 months for females. Male dispersal age was strongly and significantly correlated with number of peers in the natal group, and males dispersing with peers were significantly older than males dispersing without peers, suggesting that males delayed dispersal when peers were available for interaction. Female dispersal age was not influenced by number of peers, but was correlated with age of first reproduction. Factors not influencing dispersal age in either sex were presence of a younger sibling, maternal band transfers, and maternal age and dominance rank. The relatively high frequency of females failing to disperse from their natal groups is puzzling in light of data showing diminished fecundity in non-dispersing pony mares. |
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518 |
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Caro, T.M.; Graham, C.M.; Stoner, C.J.; Vargas, J.K. |
| Title |
Adaptive significance of antipredator behaviour in artiodactyls |
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Journal Article |
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2004 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
67 |
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2 |
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205-228 |
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We used comparative data to test functional hypotheses for 17 antipredator behaviour patterns in artiodactyls. We examined the literature for hypotheses about auditory and visual signals, defensive behaviour and group-related antipredator behaviour in this taxon and derived a series of predictions for each hypothesis. Next, we documented occurrences of these behaviour patterns and morphological, ecological and behavioural variables for 200 species and coded them in binary format. We then pitted presence of an antipredator behaviour against presence of an independent variable for cervids, bovids and all artiodactyls together using nonparametric tests. Finally, we reanalysed the data using Maddison's (1990, Evolution, 44, 539-557) concentrated-changes tests and a consensus molecular and taxonomic phylogeny. We found evidence that snorting is both a warning signal to conspecifics and a pursuit-deterrent signal, lack of evidence that whistling alerts conspecifics and indications that foot stamping is a visual signal to warn group members. Evidence suggested that tail flagging was a signal to both conspecifics and predators, that bounding, leaping and stotting were used both as a signal and to clear obstacles and that prancing functioned similarly to foot stamping. Analyses of tail flicking, zigzagging and tacking were equivocal. We confirmed that inspection occurs in large groups, freezing enhances crypticity, and species seeking refuge in cliffs tend to be small. Entering water and attacks on predators had few correlates. Finally, group living, a putative antipredator adaptation, was associated with large body size and species living in open habitats, confirming Jarman's (1974, Behaviour, 48, 215-267) classic hypothesis. Bunching and group attack apparently deter predators. Despite limitations, comparative and systematic analyses can bolster adaptive hypotheses and raise new functional explanations for antipredator behaviour patterns in general. |
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522 |
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McLeod, P.G.; Huntingford, F.A. |
| Title |
Social rank and predator inspection in sticklebacks |
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Journal Article |
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1994 |
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Animal Behaviour. |
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Anim. Behav. |
| Volume |
47 |
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5 |
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1238-1240 |
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