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Aureli, F.; Cossolino, R.; Cordischi, C.; Scucchi, S. |
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Title  |
Kin-oriented redirection among Japanese macaques: an expression of a revenge system? |
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Year |
1992 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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44 |
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2 |
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283-291 |
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The ability to recognize the close associates of other group members may permit the display of redirected aggression against the relatives of the former aggressor. However, the dominance structure and the kin-based alliance system of macaque society are expected not to favour the occurrence of this kin-oriented redirection. Nevertheless, within 1 h of being the victim of an attack, Japanese macaques, Macaca fuscata, were more likely to attack the former aggressor's kin than without such a conflict. The conditions under which the victim redirected against the former aggressor's kin were investigated. This kin-oriented redirection did not occur preferentially either after conflicts between individuals with unstable and/or uncertain dominance relationships or after conflicts with individuals that were unlikely to intervene in favour of their kin. Victims redirected against individuals that were younger than the former aggressor and often subordinate to the victim. They also redirected in an opportunistic way by joining polyadic interactions against the former aggressor's kin. The possibility that this kin-oriented redirection may have a long-term function in changing the aggressive attitude of the aggressor towards the victim is also discussed. In addition, the victim's kin also displayed a form of kin-oriented redirection. They were more likely to attack the kin of an individual after it had attacked their own kin. |
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10.1016/0003-3472(92)90034-7 |
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Equine Behaviour @ team @ |
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4867 |
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Author |
Wells, D.L.; Millsopp, S. |
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Title |
Lateralized behaviour in the domestic cat, Felis silvestris catus |
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Journal Article |
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Year |
2009 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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78 |
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2 |
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537-541 |
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cat; Felis silvestris catus; handedness; laterality; paw preference |
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Lateralized behaviour in the felids has been subject to little investigation. We examined the paw use of 42 domestic cats on three tasks designed to determine whether the animals performed asymmetrical motor behaviour. The influence of the cats' sex and age on their paw preferences was also explored. The distribution of the cats' paw preferences differed significantly between the three tasks. Task 1, the most complex exercise involving retrieval of a food treat from an empty jar, encouraged the most apparent display of lateralized behaviour, with all but one animal showing a strong preference to use either their left or right paw consistently. Tasks 2 (an exercise involving reaching for a toy suspended overhead) and 3 (a challenge involving reaching for a toy moving along the ground) encouraged ambilateral motor performance. Lateralized behaviour was strongly sex related. Male and female cats showed paw preferences at the level of the population, but in opposite directions. Females had a greater preference for using their right paw; males were more inclined to adopt their left paw. Feline age was unrelated to either strength or direction of preferred paw use. Overall, the findings suggest that there are two distinct populations of paw preference in the cat that cluster strongly around the animals' sex. The results also point to a relationship between lateralized behaviour and task complexity. More apparent patterns of lateralized behaviour were evident on more complex manipulatory tasks, hinting at functional brain specialization in this species. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5377 |
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Robins, A.; Rogers, L.J. |
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Lateralized prey-catching responses in the cane toad, Bufo marinus: analysis of complex visual stimuli |
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2004 |
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Animal Behaviour. |
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Anim. Behav. |
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68 |
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4 |
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767-775 |
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We tested the responses of Bufo marinus to prey stimuli of varying visual complexity that were moved around the toads in either a clockwise or anticlockwise direction at 1.7 revolutions/min. Predatory responses directed at prey resembling an insect were frequent when the model insect moved clockwise across the visual midline into the right visual hemifield. In contrast, the toads tended to ignore such stimuli when they moved anticlockwise across the midline into the left hemifield. No such lateralization was found when a rectangular strip moved along its longest axis was presented in a similar way. The toads also directed more responses towards the latter stimulus than towards the insect prey. Hence, the results suggest that lateralized predatory responses occur for considered decisions on whether or not to respond to complex insect-like stimuli, but not for decisions on comparatively simple stimuli. We discuss similarities between the lateralized feeding responses of B. marinus and those of avian species, as support for the hypothesis that lateralized brain function in tetrapods may have arisen from a common lateralized ancestor. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5365 |
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Faria, J.J.; Dyer, J.R.G.; Tosh, C.R.; Krause, J. |
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Title |
Leadership and social information use in human crowds |
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Journal Article |
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2010 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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79 |
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4 |
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895-901 |
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collective animal behaviour; group; human; inadvertent social cue; information; leadership |
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One of the big challenges for group-living animals is to find out who in a group has pertinent information (regarding food or predators) at any moment in time, because informed individuals may not be obviously recognizable to other group members. We found that individuals in human groups were capable of identifying those with information, and this identification increased group performance: the speed and accuracy of groups in reaching a target. Using video analysis we found how informed individuals might have been identified by other group members by means of inadvertent social cues (such as starting order, time spent following and group position). Furthermore, we were able to show that at least one of these cues, the group position of informed individuals, was indeed correlated with group performance. Our final experiment confirmed that leadership was even more efficient when the group members were given the identity of the leader. We discuss the effect of information status regarding the presence and identity of leaders on collective animal behaviour. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5192 |
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Author |
Strayer, F.F. |
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Title |
Learning and imitation as a function of social status in macaque monkeys (Macaca nemestrina) |
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Journal Article |
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Year |
1976 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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24 |
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4 |
Pages |
835-848 |
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Learning and imitation were examined in animals selected from two groups of sixteen pigtail monkeys. There were significant differences in performance on a cued-alternation task as a function of both social status within the stable group, and prior exposure to a social model. High status animals responded more frequently, but were less successful in acquiring appropriate response delay. Exposure to the model improved response latencies and acquisition of response delay for all subjects. However, model exposure did not improve alternation performance. Results are discussed in terms of prior social experience of the subjects, general learning strategies, and differential sensitivity to multiple reinforcement contingencies. Findings are related to ethological concepts of imitation, and field reports on primate social learning. |
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refbase @ user @ |
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573 |
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Author |
Templeton, J.J. |
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Title |
Learning from others' mistakes: a paradox revisited |
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1998 |
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Animal Behaviour. |
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Anim. Behav. |
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55 |
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1 |
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79-85 |
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Some researchers have reported the paradoxical finding of enhanced social learning when naive observers learn from unskilled rather than skilled demonstrators, particularly in discrimination tasks. In two experiments with starlings,Sturnus vulgaris, I considered whether this enhanced learning is because the observer (1) sees incorrect responses only, (2) sees both correct and incorrect responses or (3) sees an increase in the proportion of correct responses over trials. In experiment 1, individual starlings observed a demonstrator bird perform multiple simultaneous discrimination tasks. In one group, the demonstrator always picked the correct stimulus; in another group, the demonstrator always picked the incorrect stimulus; in a third group, the demonstrator consistently picked the correct stimulus 50% of the time. Those subjects that observed only incorrect choices performed significantly better than the other two groups, but none of the birds achieved the 90% correct performance criterion. Experiment 2 involved a single discrimination task; thus, a fourth group was added to control for individual learning. Again, subjects that observed only incorrect responses learned the discrimination significantly more quickly than the other three groups. Subjects that observed the demonstrator make both correct and incorrect responses were equally likely to select the same (correct) or opposite (incorrect) stimulus when the demonstrator picked the correct stimulus. When the demonstrator picked the incorrect stimulus, however, these subjects were significantly more likely to pick the opposite (correct) stimulus. These findings suggest that when learning a discrimination problem, observing a foraging companion's lack of success is more informative than observing its success. |
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refbase @ user @ |
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567 |
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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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2005 |
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Animal Behaviour. |
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Anim. Behav. |
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69 |
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1 |
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247-248 |
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Hauser MD; Kralik J |
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Title |
Life beyond the mirror: a reply to Anderson & Gallup |
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1997 |
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Animal Behaviour. |
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Anim. Behav. |
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54 |
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1568 |
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Equine Behaviour @ team @ |
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3002 |
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Author |
Feh, C, |
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Long-term paternity data in relation to different aspects of rank for Camargue stallions, Equus caballus |
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1990 |
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Animal Behaviour. |
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Anim. Behav. |
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40 |
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5 |
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995-996 |
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from Professor Hans Klingels Equine Reference List |
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yes |
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1081 |
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Manson, J.H. |
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Title |
Male aggression: a cost of female mate choice in Cayo Santiago rhesus macaques |
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1994 |
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Animal Behaviour. |
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Anim. Behav. |
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48 |
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473-475 |
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10.1006/anbe.1994.1262 |
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Equine Behaviour @ team @ |
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4888 |
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