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P. K. McGregor,; T. M. Peake, |
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Title |
Communication networks: social environments for receiving and signalling behaviour |
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2000 |
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Acta ethologica |
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Acta. Ethol. |
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2 |
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2 |
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71-81 |
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Communication ? Network ? Eavesdropping ? Audiences ? Information |
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Communication and social behaviour are inextricably linked, with communication mediating important social behaviours such as resource defence and mate attraction. However, the social environment in which communication occurs is often ignored in discussions of communication behaviour. We argue that networks of several individuals are the common social environment for communication behaviour. The consequences for receivers and signallers of communicating in a network environment are the main subjects of this review. Eavesdropping is a receiving behaviour that is only possible in the environment of a network and therefore we concentrate on this behaviour. The main effect of communication networks on signallers is to create competition with other signallers for receiver attention. We discuss the consequences of such competition. To conclude, we explore the role of signals and signalling interactions as sources of information that animals exploit to direct their behaviour. |
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496 |
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WAYNE L. LINKLATER & ELISSA Z. CAMERON |
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Title |
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. |
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Anim. Behav. |
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59 |
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F17-F21 |
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514 |
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Aureli, Filippo; de Waal, F. B. M. |
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Title |
Natural conflict resolution |
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2000 |
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University of California Press |
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University of California Press. |
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Introduction FILIPPO AURELI & FRANS B. M. DE WAAL Menzel, C. R. 1993. van Schaik, C. P., & van Noordwijk, M. A. 1986. Communication by agonistic displays: What can games theory contribute to ethology? Chapais, B. 1995. Alliances as a means of competition in primates: Evolutionary, developmental, and cognitive aspects. Punishment in animal societies. Nature, 373: 209-216. |
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Berkley |
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533 |
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Goncalves, D.M.; Oliveira, R.F.; Korner, K.; Poschadel, J.R.; Schlupp, I. |
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Using video playbacks to study visual communication in a marine fish, Salaria pavo |
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2000 |
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Animal Behaviour. |
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Anim. Behav. |
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60 |
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3 |
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351-357 |
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Video playbacks have been successfully applied to the study of visual communication in several groups of animals. However, this technique is controversial as video monitors are designed with the human visual system in mind. Differences between the visual capabilities of humans and other animals will lead to perceptually different interpretations of video images. We simultaneously presented males and females of the peacock blenny, Salaria pavo, with a live conspecific male and an online video image of the same individual. Video images failed to elicit appropriate responses. Males were aggressive towards the live male but not towards video images of the same male. Similarly, females courted only the live male and spent more time near this stimulus. In contrast, females of the gynogenetic poecilid Poecilia formosa showed an equal preference for a live and video image of a P. mexicana male, suggesting a response to live animals as strong as to video images. We discuss differences between the species that may explain their opposite reaction to video images. |
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541 |
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Hare, B.; Call, J.; Agnetta, B.; Tomasello, M. |
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Title |
Chimpanzees know what conspecifics do and do not see |
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2000 |
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Animal Behaviour. |
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Anim. Behav. |
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59 |
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4 |
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771-785 |
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We report a series of experiments on social problem solving in chimpanzees, Pan troglodytes. In each experiment a subordinate and a dominant individual were put into competition over two pieces of food. In all experiments dominants obtained virtually all of the foods to which they had good visual and physical access. However, subordinates were successful quite often in three situations in which they had better visual access to the food than the dominant, for example, when the food was positioned so that only the subordinate (and not the dominant) could see it. In some cases, the subordinate might have been monitoring the behaviour of the dominant directly and simply avoided the food that the dominant was moving towards (which just happened to be the one it could see). In other cases, however, we ruled out this possibility by giving subordinates a small headstart and forcing them to make their choice (to go to the food that both competitors could see, or the food that only they could see) before the dominant was released into the area. Together with other recent studies, the present investigation suggests that chimpanzees know what conspecifics can and cannot see, and, furthermore, that they use this knowledge to devise effective social-cognitive strategies in naturally occurring food competition situations. |
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585 |
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B. Agnetta,; B. Hare,; M. Tomasello, |
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Title |
Cues to food location that domestic dogs (Canis familiaris) of different ages do and do not use |
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Journal Article |
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2000 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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3 |
Issue |
2 |
Pages |
107-112 |
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Dogs – Arctic wolves – Social cognition – Gaze following – Communication |
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Autoren
B. Agnetta, B. Hare, M. Tomasello
Zusammenfassung
The results of three experiments are reported. In the main study, a human experimenter presented domestic dogs (Canis familiaris) with a variety of social cues intended to indicate the location of hidden food. The novel findings of this study were: (1) dogs were able to use successfully several totally novel cues in which they watched a human place a marker in front of the target location; (2) dogs were unable to use the marker by itself with no behavioral cues (suggesting that some form of human behavior directed to the target location was a necessary part of the cue); and (3) there were no significant developments in dogs' skills in these tasks across the age range 4 months to 4 years (arguing against the necessity of extensive learning experiences with humans). In a follow-up study, dogs did not follow human gaze into “empty space” outside of the simulated foraging context. Finally, in a small pilot study, two arctic wolves (Canis lupus) were unable to use human cues to locate hidden food. These results suggest the possibility that domestic dogs have evolved an adaptive specialization for using human-produced directional cues in a goal-directed (especially foraging) context. Exactly how they understand these cues is still an open question.
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Key words Dogs – Arctic wolves – Social cognition – Gaze following – Communication |
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598 |
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Hemelrijk, C.K. |
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Towards the integration of social dominance and spatial structure |
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2000 |
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Animal Behaviour. |
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Anim. Behav. |
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59 |
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5 |
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1035-1048 |
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My aim was to show how individual-oriented (or artificial life) models may provide an integrative background for the development of theories about dominance by including effects of spatial structure. Dominance interactions are thought to serve two different, contrasting functions: acquisition of high rank and reduction of aggression. The model I present consists of a homogeneous virtual world inhabited by artificial agents whose actions are restricted to grouping and dominance interactions in which the effects of winning and losing are self-reinforcing. The two functions are implemented as strategies to initiate dominance interactions and the intensity of aggression and dominance perception (direct or memory based) are varied experimentally. Behaviour is studied by recording the same behavioural units as in real animals. Ranks appear to differentiate more clearly at high than at low intensity of aggression and also more in the case of direct than of memory-based rank perception. Strong differentiation of rank produces a cascade of unexpected effects that differ depending on which function is implemented: for instance, a decline in aggression, spatial centrality of dominants and a correlation between rank and aggression. Insight into the origination of these self-organized patterns leads to new hypotheses for the study of the social behaviour of real animals. |
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863 |
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De Vries, H.; Appleby, M.C. |
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Finding an appropriate order for a hierarchy: a comparison of the I&SI and the BBS methods |
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2000 |
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Animal Behaviour. |
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Anim. Behav. |
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59 |
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1 |
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239-245 |
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McLean, I.G.; Schmitt, N.T.; Jarman, P.J.; Duncan, C.; Wynne, C.D.L. |
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Learning For Life: Training Marsupials To Recognise Introduced Predators |
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2000 |
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Behaviour |
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Behaviour |
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137 |
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10 |
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1361-1376 |
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Raising endangered species in captivity for reintroduction necessarily results in animals that lack appropriate skills for coping with problems to be faced in the wild, such as predators. Using classical conditioning techniques involving linking fear of a live dog with the image of a fox, we demonstrate an adjusted fear response for two wallaby species (rufous bettongs Aepyprymnus rufescens, quokkas Setonix brachyurus). No differences in response to the fox were found for wild-caught and captive-born bettongs, even though wild-caught subjects were likely to have encountered canids prior to capture. Attempts to condition a fear response by quokkas to an odour were unsuccessful. An attempt to induce fear of the stuffed fox by linking to fear of humans in quokkas was unsuccessful, but quokkas generalised from fear of the dog to fear of the fox, despite a delay of several weeks. Trained dogs offer a valuable and ethically acceptable mechanism for improving the ability of captive-reared (or sequestered) animals to recognise and cope with predators. |
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Equine Behaviour @ team @ |
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2282 |
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Houpt, K.; Marrow, M.; Seeliger, M. |
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A preliminary study of the effect of music on equine behavior |
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2000 |
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Journal of Equine Veterinary Science |
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20 |
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11 |
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691-737 |
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1988 |
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