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Author |
Ninomiya, S. |
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Title |
Social leaning and stereotypy in horses |
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Journal Article |
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Year |
2007 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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76 |
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22-23 |
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refbase @ user @ |
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620 |
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Author |
Heitor, F.; Vicente, L. |
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Title |
Learning about horses: What is equine learning all about? |
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Journal Article |
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Year |
2007 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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76 |
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1 |
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34-36 |
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no |
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refbase @ user @ |
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627 |
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Author |
Hall, C. |
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Title |
The impact of visual perception on equine learning |
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Journal Article |
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Year |
2007 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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76 |
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29-33 |
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refbase @ user @ |
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619 |
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Author |
Hothersall, B.; Nicol, C. |
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Title |
Equine learning behaviour: accounting for ecological constraints and relationships with humans in experimental design |
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Journal Article |
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Year |
2007 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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76 |
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1 |
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45-48 |
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no |
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refbase @ user @ |
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632 |
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Author |
Leblanc, M.-A.; Duncan, P. |
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Title |
Can studies of cognitive abilities and of life in the wild really help us to understand equine learning? |
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Journal Article |
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Year |
2007 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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Volume |
76 |
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Pages |
49-52 |
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no |
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refbase @ user @ |
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621 |
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Author |
Murphy, J.; Arkins, S. |
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Title |
Synthesizing what we know of equine learning behaviour |
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Journal Article |
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Year |
2007 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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76 |
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57-60 |
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no |
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876 |
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Author |
Sigurjónsdóttir , H. |
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Title |
Equine learning behaviour: The importance of evolutionary and ecological approach in research |
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Journal Article |
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Year |
2007 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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76 |
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40-42 |
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no |
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refbase @ user @ |
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624 |
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Author |
Linklater, W.L. |
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Title |
Equine learning in a wider context--Opportunities for integrative pluralism |
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Journal Article |
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Year |
2007 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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Volume |
76 |
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Pages |
53-56 |
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no |
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refbase @ user @ |
Serial |
635 |
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Author |
Schloegl, C.; Kotrschal, K.; Bugnyar, T. |
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Title |
Modifying the object-choice task: Is the way you look important for ravens? |
Type |
Journal Article |
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Year |
2008 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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Volume |
77 |
Issue |
1 |
Pages |
61-65 |
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Keywords |
Gaze; Modification; Object-choice task; Raven |
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Abstract |
Most animals seem to have difficulties in using gaze cues to find hidden food in object-choice tasks. For instance, chimpanzees usually fail in these tests, even though they are capable of following other's gaze geometrically behind barriers. Similar to chimpanzees, common ravens are skilled in tracking other's gaze but fail in object-choice tasks. We here explored whether procedural modifications, which had been used successfully in chimpanzees, would also yield positive results in ravens. In our modifications (a) the experimenter approached the cup while gazing at it, (b) the gaze cue was accompanied by a sound and (c) the experimenter could actually see the food while giving the gaze cue. Two out of seven birds performed above chance level in some of these conditions. However, we ascribe this improvement to the individuals' learning ability rather than to an understanding of the communicative nature of the task. This interpretation is further supported by results of a follow-up experiment suggesting that ravens may not rely on conspecifics' gaze cues for finding food caches in a natural foraging context. In sum, our results suggest that ravens may not transfer their gaze follow abilities to foraging situations involving hidden food. |
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Equine Behaviour @ team @ |
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4505 |
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Author |
Feh, C.; Munkhtuya, B. |
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Title |
Male infanticide and paternity analyses in a socially natural herd of Przewalski`s horses: Sexual selection? |
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Journal Article |
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Year |
2008 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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Volume |
78 |
Issue |
3 |
Pages |
335-339 |
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Keywords |
DNA paternity analysis; Human disturbance; Male infanticide; Przewalski's horse (Equus ferus przewalskii); Sexual selection |
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Abstract |
The sexual selection hypothesis explains infanticide by males in many mammals. In our 11-year study, we investigated this hypothesis in a herd of Przewalski's horses where we had witnessed infanticidal attacks. Infanticide was highly conditional and not simply linked to takeovers. Attacks occurred in only five of 39 cases following a takeover, and DNA paternity revealed that, although infanticidal stallions were not the genetic fathers in four cases out of five, stallions present at birth did not significantly attempt to kill unrelated foals. Infanticide did not reduce birth intervals; only in one case out of five was the infanticidal stallion, the father of the next foal; mothers whose foals were attacked subsequently avoided associating with infanticidal stallions. Therefore, evidence for the sexual selection hypothesis was weak. The “human disturbance” hypothesis received some support, as only zoo bred stallions which grew up in unnatural social groups attacked foals of mares which were pregnant during takeovers. |
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Equine Behaviour @ team @ |
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4632 |
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