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Author Flauger, B.; Krueger, K.; Gerhards, H.; Moestl, E.
Title Measurement of glucocorticoid metabolites in horse faeces: the validation of different group specific enzymeimmunoassays and extraction methods. Type Book Chapter
Year (down) 2009 Publication Proceeding of the 102. Annual meeting of the Deutsche Zoologische Gesellschaft (DZG). Abbreviated Journal
Volume Issue Pages 166
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Publisher Dt. Zoologische Ges Place of Publication München Editor Cremer,S.;Schrempf,A.;Heinze,J.
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ISSN ISBN 978-3-00-028368-0 Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5718
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Author Krueger, K.; Flauger, B.
Title Social feeding decisions in horses (Equus caballus) Type Journal Article
Year (down) 2008 Publication Behavioural Processes Abbreviated Journal Behav. Process.
Volume 78 Issue 1 Pages 76-83
Keywords Feeding decision; Horse; Rank; Social behaviour
Abstract Like many other herbivores, in a natural environment equids feed on rather evenly distributed resources. However, the vegetation in their vast habitats constantly changes. If food is plentiful only little competition occurs over food, and in non-competitive situations domestic horses tend to return to the same feeding site until it is overgrazed. In contrast, they compete over limited food for which the social status of the individuals appears to be important. Especially in ruminants several studies have proved an influence of social organisations, rank, sex and the depletion of feeding sites on the feeding behaviour of individuals. However, it is not yet understood whether and how social aspects affect horses“ feeding decisions. Curiosity about the influence of social rank on the horses” feeding decisions between two, equally with high-quality surplus food-filled buckets placed in different social feeding conditions, led us to create the test below. The observer horses were alternately tested with a dominant and a subordinate demonstrator placed in one of the three different positions. We conclude that domestic horses use social cognition and strategic decision making in order to decide where to feed in a social feeding situation. When possible they tend to return to the same, continuously supplied feeding site and switch to an “avoidance tendency” in the presence of dominant horses or when another horse is already feeding there. Thus, the social rank and the position of conspecifics affect the feeding strategy of horses.
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4394
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Author Flauger, B.; Krueger, K.
Title Ecology and evolution of equine cognitive abilities Type Conference Article
Year (down) 2008 Publication IESM 2008 Abbreviated Journal
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Abstract The cognitive abilities of social ungulates, in particular horses, have widely been neglected. Preliminary results suggest that horses are capable of social cognition which they acquire through social learning. They gain information from the observation of the interaction of a conspecific and a human experimenter, and adjust their own behaviour towards the experimenter with respect to the observed horse"s reaction and relative dominance status (Krueger and Heinze, 2007). Horses are a highly social species that still exists in different evolutionary stages: domestic horses, feral horses and wild horses (Przewalski horses). Additionally, domestic and wild horses differ in their individual social behaviour. For example, in social interactions Przewalski horses appear to act significantly more aggressively than domestic horses. Therefore studies on horses are particularly suitable to investigate whether convergent social evolution favours convergent cognitive evolution. By a comparative study concerning their reasoning abilities in a specific situation, we will attempt to determine the influence of domestication and feralisation on the evolution of social cognition and to investigate possible differences in their abilities to cope with stressful situations. We started to observe the behaviour of domestic and wild horses, in particular during the integration into new social groups, especially in relation with their knowledge of the social structure of new groups and their own relative social status. Selected agonistic interactions will be measured and statistically evaluated. Additionally, the stress level of the horses will be determined by an analysis of stress hormone levels, particularly cortisol metabolites, in plasma, saliva and faeces.
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Corporate Author Flauger, B. Thesis
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Area Expedition Conference IESM 2008
Notes Poster IESM 2008 Approved yes
Call Number Equine Behaviour @ team @ Serial 4500
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Author Krueger, K.; Flauger, B.
Title Social learning in horses from a novel perspective Type Journal Article
Year (down) 2007 Publication Behavioural Processes Abbreviated Journal Behav. Process.
Volume 76 Issue 1 Pages 37-39
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Notes Approved no
Call Number refbase @ user @ Serial 625
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