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Goodwin, D.; McGreevy, P.D.; Heleski, C.; Randle, H.; Waran, N. |
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Equitation science: The application of science in equitation |
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2008 |
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Journal of Applied Animal Welfare Science |
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11 |
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3 |
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185-190 |
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School of Natural Sciences, Unitec, New Zealand |
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Export Date: 13 November 2008; Source: Scopus |
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Equine Behaviour @ team @ |
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4656 |
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De Cremer, D.; van Dijk, E. |
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Title |
Leader--Follower Effects in Resource Dilemmas: The Roles of Leadership Selection and Social Responsibility |
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2008 |
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Group Processes Intergroup Relations |
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11 |
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3 |
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355-369 |
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followers, leadership selection, resource allocations, resource dilemmas, social responsibility |
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Previous research on the allocation of scarce resources shows that when people are assigned labels of leader or follower in their group, leaders allocate more of the scarce resources to themselves than followers do. In three laboratory studies, we examine the idea that how people are selected for the leader role (i.e. election or appointment) determines whether leaders take more or equal shares (relative to followers) from a common resource. In a first experiment, we show that participants were more accepting of norm violating behavior by an appointed versus elected leader. In a second experiment, we show that when participants were assigned to a leader or follower role, allocations of appointed leaders differed significantly from those of elected leaders and followers, whereas there was no difference between the two latter conditions. Moreover, elected leaders were shown to feel more social responsibility than both appointed leaders and followers. In a final experiment, we show that when participants were primed with the concept of social responsibility (relative to a neutral condition) no difference in allocations between appointed and elected leaders emerged. |
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Equine Behaviour @ team @ |
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4805 |
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Subiaul, F.; Vonk, J.; Okamoto-Barth, S.; Barth, J. |
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Do chimpanzees learn reputation by observation? Evidence from direct and indirect experience with generous and selfish strangers |
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2008 |
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Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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11 |
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4 |
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611-623 |
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Abstract  Can chimpanzees learn the reputation of strangers indirectly by observation? Or are such stable behavioral attributions made exclusively by first-person interactions? To address this question, we let seven chimpanzees observe unfamiliar humans either consistently give (generous donor) or refuse to give (selfish donor) food to a familiar human recipient (Experiments 1 and 2) and a conspecific (Experiment 3). While chimpanzees did not initially prefer to beg for food from the generous donor (Experiment 1), after continued opportunities to observe the same behavioral exchanges, four chimpanzees developed a preference for gesturing to the generous donor (Experiment 2), and transferred this preference to novel unfamiliar donor pairs, significantly preferring to beg from the novel generous donors on the first opportunity to do so. In Experiment 3, four chimpanzees observed novel selfish and generous acts directed toward other chimpanzees by human experimenters. During the first half of testing, three chimpanzees exhibited a preference for the novel generous donor on the first trial. These results demonstrate that chimpanzees can infer the reputation of strangers by eavesdropping on third-party interactions. |
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Equine Behaviour @ team @ |
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4837 |
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Dacke, M.; Srinivasan, M. |
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Evidence for counting in insects |
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2008 |
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Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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11 |
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4 |
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683-689 |
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Abstract  Here we investigate the counting ability in honeybees by training them to receive a food reward after they have passed a specific number of landmarks. The distance to the food reward is varied frequently and randomly, whilst keeping the number of intervening landmarks constant. Thus, the bees cannot identify the food reward in terms of its distance from the hive. We find that bees can count up to four objects, when they are encountered sequentially during flight. Furthermore, bees trained in this way are able count novel objects, which they have never previously encountered, thus demonstrating that they are capable of object-independent counting. A further experiment reveals that the counting ability that the bees display in our experiments is primarily sequential in nature. It appears that bees can navigate to food sources by maintaining a running count of prominent landmarks that are passed en route, provided this number does not exceed four. |
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Equine Behaviour @ team @ |
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4938 |
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Gaunet, F. |
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How do guide dogs of blind owners and pet dogs of sighted owners ( Canis familiaris ) ask their owners for food? |
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Journal Article |
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Year |
2008 |
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Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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11 |
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3 |
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475-483 |
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Abstract Although there are some indications that dogs (Canis familiaris) use the eyes of humans as a cue during human–dog interactions, the exact conditions under which this holds true are unclear. Analysing whether the interactive modalities of guide dogs and pet dogs differ when they interact with their blind, and sighted owners, respectively, is one way to tackle this problem; more specifically, it allows examining the effect of the visual status of the owner. The interactive behaviours of dogs were recorded when the dogs were prevented from accessing food that they had previously learned to access. A novel audible behaviour was observed: dogs licked their mouths sonorously. Data analyses showed that the guide dogs performed this behaviour longer and more frequently than the pet dogs; seven of the nine guide dogs and two of the nine pet dogs displayed this behaviour. However, gazing at the container where the food was and gazing at the owner (with or without sonorous mouth licking), gaze alternation between the container and the owner, vocalisation and contact with the owner did not differ between groups. Together, the results suggest that there is no overall distinction between guide and pet dogs in exploratory, learning and motivational behaviours and in their understanding of their owner’s attentional state, i.e. guide dogs do not understand that their owner cannot see (them). However, results show that guide dogs are subject to incidental learning and suggest that they supplemented their way to trigger their owners’ attention with a new distal cue. |
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Equine Behaviour @ team @ |
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5008 |
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Bates, L.A.; Lee, P.C.; Njiraini, N.; Poole, J.H.; Sayialel, K.; Sayialel, S.; Moss, C.J.; Byrne, R. |
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Do Elephants Show Empathy? |
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2008 |
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Journal of Consciousness Studies |
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J Conscious Stud |
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15 |
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10-11 |
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204-225 |
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Elephants show a rich social organization and display a number of unusual traits. In this paper, we analyse reports collected over a thirty-five year period, describing behaviour that has the potential to reveal signs of empathic understanding. These include coalition formation, the offering of protection and comfort to others, retrieving and 'babysitting' calves, aiding individuals that would otherwise have difficulty in moving, and removing foreign objects attached to others. These records demonstrate that an elephant is capable of diagnosing animacy and goal directedness, and is able to understand the physical competence, emotional state and intentions of others, when they differ from its own. We argue that an empathic understanding of others is the simplest explanation of these abilities, and discuss reasons why elephants appear to show empathy more than other non-primate species. |
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yes |
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Equine Behaviour @ team @ |
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5057 |
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Gould, J.L. |
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Animal Navigation: The Evolution of Magnetic Orientation |
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2008 |
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Current Biology |
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18 |
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11 |
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R482-R484 |
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Summary Animals have several types of magnetic organ, often separately specialized for determining direction versus location. Recent results offer hints about how these once-unimaginable detectors may have evolved. |
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0960-9822 |
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Equine Behaviour @ team @ |
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4770 |
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King, A.J.; Douglas, C.M.S.; Huchard, E.; Isaac, N.J.B.; Cowlishaw, G. |
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Dominance and affiliation mediate despotism in a social primate |
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2008 |
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Current Biology : CB |
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Curr Biol |
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18 |
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23 |
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1833-1838 |
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Animals; *Authoritarianism; Behavior, Animal/*physiology; Cooperative Behavior; *Decision Making; Feeding Behavior; Female; *Group Processes; Male; Papio ursinus/*psychology; *Social Dominance |
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Group-living animals routinely have to reach a consensus decision and choose between mutually exclusive actions in order to coordinate their activities and benefit from sociality. Theoretical models predict “democratic” rather than “despotic” decisions to be widespread in social vertebrates, because they result in lower “consensus costs”-the costs of an individual foregoing its optimal action to comply with the decision-for the group as a whole. Yet, quantification of consensus costs is entirely lacking, and empirical observations provide strong support for the occurrence of both democratic and despotic decisions in nature. We conducted a foraging experiment on a wild social primate (chacma baboons, Papio ursinus) in order to gain new insights into despotic group decision making. The results show that group foraging decisions were consistently led by the individual who acquired the greatest benefits from those decisions, namely the dominant male. Subordinate group members followed the leader despite considerable consensus costs. Follower behavior was mediated by social ties to the leader, and where these ties were weaker, group fission was more likely to occur. Our findings highlight the importance of leader incentives and social relationships in group decision-making processes and the emergence of despotism. |
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Institute of Zoology, Zoological Society of London, Regent's Park, London, NW1 4RY, UK. andrew.king@ioz.ac.uk |
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0960-9822 |
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PMID:19026539 |
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Equine Behaviour @ team @ |
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5124 |
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Sueur, J.; Aubin, T.; Simonis, C. |
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Seewave: a free modular tool for sound analysis and synthesis |
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2008 |
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Bioacoustics |
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18 |
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Equine Behaviour @ team @ Sueur2008 |
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6490 |
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Smith, B.R.; Blumstein, D.T. |
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Fitness consequences of personality: a meta-analysis |
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2008 |
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Behavioral Ecology |
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Behav. Ecol. |
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19 |
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2 |
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448-455 |
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The study of nonhuman personality capitalizes on the fact that individuals of many species behave in predictable, variable, and quantifiable ways. Although a few empirical studies have examined the ultimate consequences of personality differences, there has been no synthesis of results. We conducted a formal meta-analysis of published studies reporting fitness consequences of single personality dimensions to identify general trends across species. We found bolder individuals had increased reproductive success, particularly in males, but incurred a survival cost, thus, supporting the hypothesis that variation in boldness was maintained due to a “trade-off” in fitness consequences across contexts. Potential mechanisms maintaining variation in exploration and aggression are not as clear. Exploration had a positive effect only on survival, whereas aggression had a positive effect on both reproductive success and, not significantly, on survival. Such results would suggest that selection is driving populations to become more explorative and aggressive. However, limitations in meta-analytic techniques preclude us from testing for the effects of fluctuating environmental conditions or other forms of selection on these dimensions. Results do, however, provide evidence for general relationships between personality and fitness, and we provide a framework for future studies to follow in the hopes of spurring more in-depth, long-term research into the evolutionary mechanisms maintaining variation in personality dimensions and overall behavioral syndromes. We conclude with a discussion on how understanding and managing personality traits may play a key role in the captive breeding and recovery programs of endangered species. |
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10.1093/beheco/arm144 |
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Equine Behaviour @ team @ |
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5226 |
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