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Reed, P.; Skiera, F.; Adams, L.; Heyes, C.M. |
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Title |
Effects of Isolation Rearing and Mirror Exposure on Social and Asocial Discrimination Performance |
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1996 |
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Learning and Motivation |
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Learn. Motiv. |
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27 |
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2 |
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113-129 |
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Four experiments examined the effects of rearing in isolation on rats performance on discrimination-based and social learning tasks. After demonstrating that the rearing procedures produced similar results in an open field task to those previously established (Experiment 1), rats were subjected to two discrimination tasks: an instrumental occasion setting procedure (Experiment 3) and a nonspatial win-stay/lose-shift versus win-shift/lose-stay procedure (Experiment 4). Deficits in acquisition of the necessary discriminations were noted in the rats raised in isolation, but there were no differences between isolation-reared and socially reared subjects in response acquisition per se. In Experiment 2, rats were presented with an observational learning task using the bidirectional control procedure. Socially reared rats had a tendency to imitate the behavior they had observed, but rats raised in isolation performed the opposite behavior to that observed, indicating a failure to use a conspecific as a reference point in the task. The presence of a mirror during rearing in isolation was also investigated, but was found to have little effect in attenuating the above deficits in behavior. |
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725 |
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Duncan, P.; Vigne, N. |
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Title |
The effect of group size in horses on the rate of attacks by blood-sucking flies |
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Journal Article |
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1979 |
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Animal Behaviour. |
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Anim. Behav. |
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27 |
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Part 2 |
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623-625 |
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763 |
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Sayigh, L.S.; Tyack, P.L.; Wells, R.S.; Solow, A.R.; Scott, M.D.; Irvine, A.B. |
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Title |
Individual recognition in wild bottlenose dolphins: a field test using playback experiments |
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Journal Article |
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1999 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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57 |
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1 |
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41-50 |
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We conducted playback experiments with wild bottlenose dolphins, Tursiops truncatus, to determine whether there is sufficient information in their individually distinctive signature whistles for individual recognition. We conducted experiments with members of a resident community of dolphins in waters near Sarasota, Florida, during temporary capture-release projects. We used a paired playback design, wherein the same two whistle sequences were predicted to evoke opposite responses from two different target animals. This design controlled for any unknown cues that may have been present in the playback stimuli. We predicted that mothers would respond more strongly to the whistles of their own independent offspring than to the whistles of a familiar, similar-aged nonoffspring. Similarly, we predicted that independent offspring would respond more strongly to the whistles of their own mother than to the whistles of a familiar, similar-aged female. Target animals were significantly (P<0.02) more likely to respond to the predicted stimuli, with responses measured by the number of head turns towards the playback speaker. In bottlenose dolphin societies, stable, individual-specific relationships are intermixed with fluid patterns of association between individuals. In primate species that live in similar 'fission-fusion' type societies, individual recognition is commonplace. Thus, when taken in the context of what is known about the social structure and behaviour of bottlenose dolphins, these playback experiments suggest that signature whistles are used for individual recognition. Copyright 1999 The Association for the Study of Animal Behaviour. |
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Department of Biological Sciences and Center for Marine Science Research, University of North Carolina at Wilmington |
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0003-3472 |
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PMID:10053070 |
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767 |
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Pongrácz, P.; Miklósi, Á.; Kubinyi, E.; Gurobi, K.; Topál, J.; Csányi, V. |
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Title |
Social learning in dogs: the effect of a human demonstrator on the performance of dogs in a detour task |
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Journal Article |
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2001 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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62 |
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6 |
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1109-1117 |
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We recorded the behaviour of dogs in detour tests, in which an object (a favourite toy) or food was placed behind a V-shaped fence. Dogs were able to master this task; however, they did it more easily when they started from within the fence with the object placed outside it. Repeated detours starting from within the fence did not help the dogs to obtain the object more quickly if in a subsequent trial they started outside the fence with the object placed inside it. While six trials were not enough for the dogs to show significant improvement on their own in detouring the fence from outside, demonstration of this action by humans significantly improved the dogs' performance within two-three trials. Owners and strangers were equally effective as demonstrators. Our experiments show that dogs are able to rely on information provided by human action when confronted with a new task. While they did not copy the exact path of the human demonstrator, they easily adopted the detour behaviour shown by humans to reach their goal. |
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847 |
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Chase, I.D.; Tovey, C.; Murch, P. |
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Title |
Two's Company, Three's a Crowd: Differences in Dominance Relationships in Isolated Versus Socially Embedded Pairs of Fish |
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2003 |
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Behaviour |
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Behaviour |
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140 |
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10 |
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1193-1217 |
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We performed experiments with cichlid fish to test whether several basic aspects of dominance were the same in isolated pairs as in pairs within a social group of three or four. We found that the social context, whether a pair was isolated or within a group, strongly affected the basic properties of dominance relationships. In particular, the stability of relationships over time, the replication of relationships in successive meetings, and the extent of the loser effect were all significantly less in socially embedded pairs than in isolated pairs. We found no significant winner effect in either isolated or socially embedded pairs. These findings call into question many current approaches to dominance that do not consider social context as an important factor in dominance behavior. These findings also cast serious doubt on the validity of empirical and theoretical approaches based on dyadic interactions. Among these approaches are game theoretic models for the evolution of aggressive behavior, experimental designs evaluating how asymmetries in attributes influence the outcome of dominance |
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857 |
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Albers, P.C.H.; de Vries, H. |
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Title |
Elo-rating as a tool in the sequential estimation of dominance strengths |
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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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2 |
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489-495 |
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858 |
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McLean, I.G.; Schmitt, N.T.; Jarman, P.J.; Duncan, C.; Wynne, C.D.L. |
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Title |
Learning For Life: Training Marsupials To Recognise Introduced Predators |
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Journal Article |
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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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Duncan, P. |
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Determinants of the use of habitat by horses in a mediterranean wetland |
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1983 |
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J. Anim. Ecol. |
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93-109 |
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from Professor Hans Klingels Equine Reference List |
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1031 |
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Labneaux D, P.E. |
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Embryo TransferAre pony and larger mares similar as recipients for non-surgical transfer of Day 7 embryos? |
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Embryo Transfer |
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from Professor Hans Klingels Equine Reference List |
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1335 |
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Author |
Penzhorn,B.L.; Novellie, P.A. |
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Title |
Some behavioural traits of Cape mountain zebras and their implications for the management of asmall conservation area |
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1991 |
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Applied Animal Behaviour Science |
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Appl. Anim. Behav. Sci. |
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29 |
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1-4 |
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293-299 |
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The social organisation of mountain zebras (Equus zebra zebra) consists of breeding herds (1 male, 2.4 females (range 1–5) and their offspring) which remain stable over many years, and bachelor groups. Foals leave their maternal herds of their own accord. In a free-ranging population the behaviour of the foals in leaving the herd is probably an adequate mechanism to prevent inbreeding, but inbreeding may occur in confined populations. Individual recognition by means of stripe pattern allows a check to be kept.
Seasonal movement of mountain zebras is associated with a relative change in diet quality (as indicated by crude protein contents of preferred food plants and of faeces) between summer and winter habitats. Any conservation area should be large and varied enough to include both summer and winter habitats. Mountain zebras favour taller grass than most antelope species, harvesting their food at 50–150 mm from the ground. The existence of large populations of antelope could, therefore, be detrimental to zebras. |
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from Professor Hans Klingels Equine Reference List |
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1465 |
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