| Records |
| Author |
Flauger, B.; Krueger, K. |
| Title |
Ecology and evolution of equine cognitive abilities |
Type |
Conference Article |
| Year |
2008 |
Publication  |
IESM 2008 |
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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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Flauger, B. |
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Conference |
IESM 2008 |
| Notes |
Poster IESM 2008 |
Approved |
yes |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4500 |
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| Author |
Krueger, K. (ed) |
| Title |
Proceedings of the International Equine Science Meeting 2008 |
Type |
Conference Volume |
| Year |
2008 |
Publication |
IESM 2008 |
Abbreviated Journal |
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| Keywords |
Equine Ecology; Equine Sociality; Equine Learning; Equine Cognition; Equine Welfare |
| Abstract |
Target group: Biologists, Psychologists, Veterinarians and Professionals
Meeting target: Because the last international meeting on Equine Science took place a couple years ago, there is an urgent need for equine scientists to exchange scientific knowledge, coordinate research provide knowledge for practical application, and discus research results among themselves and with professionals who work with horses. Additionally, dialog concerning the coordination of the study “Equitation Science” in Europe is urgently needed. Coordination and cooperation shall arise from the meeting, enrich the research, and advance the application of scientific knowledge for the horses` welfare. |
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| Publisher |
Xenophon Verlag |
Place of Publication |
Wald |
Editor |
Krueger, K. |
| Language |
English |
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ISBN |
978-3-9808134-0-2 |
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no |
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Equine Behaviour @ team @ |
Serial |
4508 |
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| Author |
Fuchs, K.; Götz, K.; Manschel, K.; Pohl, L.; Preisendanz, L.; Weil, S.; Weiß, V.; Wittum, J.; Krueger, K. |
| Title |
Vergleich der Interaktionen von Pferden in Boxenhaltung mit Weidegang und Pferden in Offenstallhaltung |
Type |
Conference Article |
| Year |
2013 |
Publication |
Göttinger Pferdetage’13 |
Abbreviated Journal |
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Issue |
13 |
Pages |
65 |
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978-3-88542-782-7 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5948 |
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| Author |
Ruess, M.; Schmelz, A.; Krueger, K. |
| Title |
Einfluss vitomechanischer Schwingungen auf das Muskuloskeletalsystem der Pferde |
Type |
Conference Article |
| Year |
2013 |
Publication |
Göttinger Pferdetage’13 |
Abbreviated Journal |
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Issue |
13 |
Pages |
111 |
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978-3-88542-782-7 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5949 |
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| Author |
Krueger, K. . |
| Title |
Soziales Lernen der Pferde |
Type |
Book Chapter |
| Year |
2011 |
Publication |
Göttinger Pferdetage '11: Zucht, Haltung und Ernährung von Sportpferden |
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Pages |
51 |
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FN Verlag |
Place of Publication |
Warendorf |
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ISBN |
978-3885427582 |
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no |
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Equine Behaviour @ team @ |
Serial |
5719 |
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| Author |
Schanz, L.; Krueger, K.; Hintze, S. |
| Title |
Sex and Age Don't Matter, but Breed Type Does--Factors Influencing Eye Wrinkle Expression in Horses |
Type |
Journal Article |
| Year |
2019 |
Publication |
Frontiers in Veterinary Science |
Abbreviated Journal |
Front. Vet. Sci. |
| Volume |
6 |
Issue |
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Pages |
154 |
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| Abstract |
Identifying valid indicators to assess animals' emotional states is a critical objective of animal welfare science. In horses, eye wrinkles above the eyeball have been shown to be affected by pain and other emotional states. From other species we know that individual characteristics, e.g. age in humans, affect facial wrinkles, but it has not yet been investigated whether eye wrinkle expression in horses is systematically affected by such characteristics. Therefore, the aim of this study was to assess how age, sex, breed type, body condition and coat colour affect the expression and/or the assessment of eye wrinkles in horses. To this end, we adapted the eye wrinkle assessment scale from Hintze et al. (2016) and assessed eye wrinkle expression in pictures taken from the left and the right eye of 181 horses in a presumably neutral situation, using five outcome measures: a qualitative first impression reflecting how worried the horse is perceived by humans, the extent to which the brow is raised, the number of wrinkles, their markedness and the angle between a line through both corners of the eye and the topmost wrinkle. All measures could be assessed highly reliable with respect to intra- and inter-observer agreement. Breed type affected the width of the angle (F2, 114 = 8.20, p < 0.001), with thoroughbreds having the narrowest angle (M = 23.80, SD = 1.60), followed by warmbloods (M = 28.00, SD = 0.60), and coldbloods (M = 31.00, SD = 0.90). None of the other characteristics affected any of the outcome measures, and eye wrinkle expression did not differ between the left and the right eye area (all p-values > 0.05). In conclusion, horses' eye wrinkle expression and its assessment in neutral situations was not systematically affected by the investigated characteristics, except for 'breed type', which accounted for some variation in 'angle'; how much eye wrinkle expression is affected by emotion or perhaps mood needs further investigation and validation. |
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2297-1769 |
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Approved |
no |
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Equine Behaviour @ team @ |
Serial |
6578 |
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| Author |
Krueger, K. |
| Title |
“Pferdehaltung und Ethologie der Pferde” im Bachelorstudiengang Pferdewirtschaft |
Type |
Book Chapter |
| Year |
2014 |
Publication |
Forschendes Lernen initiieren, umsetzen und reflektieren |
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Pages |
54-81 |
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UniversitätsVerlag Webler |
Place of Publication |
Bielefeld |
Editor |
: S. Lepp und C. Niederdrenk-Felgner |
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10: 3-937026-91-6 |
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no |
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Equine Behaviour @ team @ |
Serial |
5944 |
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| Author |
Krueger, K. |
| Title |
Perissodactyla Cognition |
Type |
Book Chapter |
| Year |
2017 |
Publication |
Encyclopedia of Animal Cognition and Behavior |
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Issue |
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Pages |
1-10 |
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Springer International Publishing |
Place of Publication |
Cham |
Editor |
Vonk, J.; Shackelford, T. |
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978-3-319-47829-6 |
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no |
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Equine Behaviour @ team @ Krueger2017 |
Serial |
6187 |
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| Author |
Krueger, K.; Marr, I.; Farmer, K. |
| Title |
Equine Cognition |
Type |
Book Chapter |
| Year |
2017 |
Publication |
Encyclopedia of Animal Cognition and Behavior |
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Issue |
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Pages |
1-11 |
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Springer International Publishing |
Place of Publication |
Cham |
Editor |
Vonk, J.; Shackelford, T. |
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978-3-319-47829-6 |
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no |
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Equine Behaviour @ team @ Krueger2017 |
Serial |
6181 |
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| Author |
Krueger, K. |
| Title |
Social Ecology of Horses |
Type |
Book Chapter |
| Year |
2008 |
Publication |
Ecology of Social Evolution |
Abbreviated Journal |
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Issue |
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Pages |
195-206 |
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| Abstract |
Horses (Equidae ) are believed to clearly demonstrate the links between ecology and social organization. Their social cognitive abilities enable them to succeed in many different environments, including those provided for them by humans, or the ones domestic horses encounter when escaping from their human care takers. Living in groups takes different shapes in equids. Their aggregation and group cohesion can be explained by Hamilton“s selfish herd theory. However, when an individual joins and to which group it joins appears to be an active individual decision depending on predation pressure, intra group harassment and resource availability. The latest research concerning the social knowledge horses display in eavesdropping experiments affirms the need for an extension of simple herd concepts in horses for a cognitive component. Horses obviously realize the social composition of their group and determine their own position in it. The horses exceedingly flexible social behavior demands for explanations about the cognitive mechanisms, which allow them to make individual decisions. ”Ecology conditions like those that favour the evolution of open behavioural programs sometimes also favour the evolution of the beginnings of consciousness, by favouring conscious choice. Or in other words, consciousness originates with the choice that are left open by open behavioural programs." Popper (1977) |
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Springer Verlag |
Place of Publication |
Heidelberg |
Editor |
j. Korb and J. Heinze |
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no |
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Equine Behaviour @ team @ |
Serial |
4387 |
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