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Author Granquist,S.M.; Sigurjónsdóttir, H; Thórhallsdóttir, A.G.
Title Social structure and interactions within groups of horses containing a stallion Type Conference Article
Year 2008 Publication IESM 2008 Abbreviated Journal
Volume Issue Pages
Keywords Social interactions,, Stallions, Hierarchy, Icelandic horses
Abstract Earlier research indicates that stallions might either prevent social interactions between mares in their

herds directly or indirectly by their presence (Feist and McCullough, 1976; Sigurjonsdottir et al.,

2003) The impact of stallions on the social interactions between harem members was studied in 6

groups of Icelandic horses in 2004, 2006 and 2007 for altogether 525 hours. Four of the groups were

permanently living together under semi-feral conditions, while two were temporary breeding groups. In

addition, temporary and permanent groups were compared and the effect of the stability of the group

on the social behaviour of horses was investigated .

The results show that stallions seldom intervene directly in social interactions between harem

members. However, the hierarchies were less rigid and fewer friendship bonds were found in the

groups compared to what has been found in groups without stallions in Iceland. These results give

some support to our prediction that the stallion does indirectly suppress social interactions of herd

members.

The stability of the group was found to affect the aggression rate, since a higher aggression rate was

found in the temporary groups compared to the permanent groups. The number of preferred

allogrooming partners of the horses was also affected to some extent, as a significantly lower number

of allogrooming partners was found in the most unstable group compared to all the other groups. The

results have significance for further research in the field of social structure of mammals, and may also

be applied in the management of horses and other domestic animals.
Address
Corporate Author Sigurjónsdóttir, H Thesis
Publisher Place of Publication Editor
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Series Editor Series Title Abbreviated Series Title
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ISSN (up) ISBN Medium
Area Expedition Conference IESM 2008
Notes Talk 15 min IESM 2008 Fullpaper Approved yes
Call Number Equine Behaviour @ team @ Serial 4487
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Author Proops, L.; McComb, K.; Reby, D.
Title Horse-human interactions: Attention attribution and the use of human cues by domestic horses (Equus caballus). Type Conference Article
Year 2008 Publication IESM 2008 Abbreviated Journal
Volume Issue Pages
Keywords social cognition; animal-human interaction; horses; attention
Abstract Recent research has shown that domestic dogs are particularly good at reading human attentional cues, often outperforming chimpanzees and hand reared wolves [1, 2]. It has been suggested that the close evolutionary relationship between humans and dogs has led to the development of this ability, however very few other species have been studied [3]. We tested the ability of 24 domestic horses to discriminate between an attentive and inattentive person when choosing whom to approach for food. While the attentive person faced forwards, the inattentive person either stood with their body turned 180° away from the subject (body orientation condition), stood with their body facing forwards but their head facing away (head orientation condition) or stood facing forwards but with their eyes closed (eyes closed condition). A fourth, mixed condition was included where the attentive person stood with their body facing away from the subjects but their head turned towards the subject while the inattentive person stood with their body facing the subject but their head turned away. Horses chose the attentive person significantly more often using the body cue (n = 24, k = 19, p = 0.003), the head cue (n = 24, k = 18, p = 0.011), and the eye cue (n = 24, k = 19, p = 0.003) but not the mixed cue (n = 24, k = 13, p = 0.42). In an additional pilot study, horses were tested in an object choice task. A human experimenter cued one of two buckets by either tapping the bucket (tap condition), orienting their body towards the bucket and pointing (body and point condition), pointing while facing forwards (point condition) or orienting their body towards the bucket (body condition). If the subjects chose the correct bucket they were rewarded. Subjects were able to use the tap cue (n = 31, k = 21, p = 0.035), body + point cue (n= 31, k = 21, p = 0.035) and the point cue (n = 30, k = 21, p = 0.021) but not the body cue (n = 31, k = 11, p = 0.076). These results taken together suggest that domestic horses are also very sensitive to human attentional cues, including gaze.

Keywords:

social cognition, animal-human interaction, horses, attention attribution, domestication

1. Hare, B., Brown, M., Williamson, C., and Tomasello, M. (2002). The domestication of social cognition in dogs. Science 298, 1634-1636.

2. Gacsi, M., Miklosi, A., Varga, O., Topal, J., and Csanyi, V. (2004). Are readers of our face readers of our minds` Dogs (Canis familiaris) show situation-dependent recognition of human’s attention. Animal Cognition 7, 144-153.

3. Hare, B., and Tomasello, M. (2005). Human-like social skills in dogs? Trends Cogn. Sci. 9, 439-444.
Address
Corporate Author Proops, L. Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) ISBN Medium
Area Expedition Conference IESM 2008
Notes Poster IESM 2008 Approved no
Call Number Equine Behaviour @ team @ Serial 4502
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Author Bourjade, M.; Moulinot, M.; Henry, S.; Richard-Yris, M.-A. Hausberger.M
Title Could Adults be Used to Improve Social Skills of Young Horses, Equus caballus? Type Journal Article
Year 2008 Publication Ethology Abbreviated Journal Ethology
Volume 50 Issue 4 Pages 408-417
Keywords horse • social influence • young-adult interaction • social development
Abstract We investigated the effects of the introduction of foreign adults on the behavior of young horses. First, we observed the behavior of 1- and 2-year-old domestic horses housed in same-age and same-sex groups (a standard housing system, but different from a natural situation). Then, two same-sex adults were introduced into each experimental group. Observations made before, during and after an introduction indicated that young horses reared in homogeneous groups of young had different behaviors compared to other domestic horses reared under more socially natural conditions. After the introduction of adults, young horses expressed new behaviors, preferential social associations emerged, positive social behavior increased and agonistic interactions decreased. These results have important implications both for understanding the influence that adults may have on the behavior of young horses, and in terms of husbandry, indicating the importance of keeping young horses with adults, although further studies are still necessary. © 2008 Wiley Periodicals, Inc. Dev Psychobiol 50: 408-417, 2008.
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Language Summary Language Original Title
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4800
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Author Wolff, A.; Hausberger, M.
Title Behaviour of foals before weaning may have some genetic basis Type Journal Article
Year 1994 Publication Ethology Abbreviated Journal Ethology
Volume 96 Issue 1 Pages 1-10
Keywords Locomotion; Suckling; Social behavior; Foraging behavior; Exploratory behavior; Interindividual comparison; Young animal; Genetic inheritance; Captivity; Social interaction; Feeding behavior; Perissodactyla; Ungulata; Mammalia; Vertebrata
Abstract In this preliminary study on foal behaviour, 13 French saddlebred foals (2-3 mo old) and their dams were observed on pasture. The most important findings are the interindividual quantitative differences in foal behaviour patterns as well as in the amount of mainly foal-initiated time spent at given distances from their mares. Interindividual differences seem in part due to a sire effect
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5022
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Author Heitor, F.; Vicente, L.
Title Dominance relationships and patterns of aggression in a bachelor group of Sorraia horses (Equus caballus) Type Journal Article
Year 2010 Publication Journal of Ethology Abbreviated Journal J. Ethol.
Volume 28 Issue 1 Pages 35-44
Keywords Horse – Equus – Dominance relationship – Rank – Agonistic interaction
Abstract Abstract  The influence of individual factors on dominance rank and the relationship between rank distance and patterns of aggression predicted by models of evolutionarily stable strategies (ESS) of animal conflict were investigated in a managed bachelor group of Sorraia horses, Equus caballus. The group was composed of four to six stallions 3- to 12-years-old during the study period. The dominance hierarchy was significantly linear and rank was not related to age, weight, height or aggressiveness. Frequency and intensity of agonistic interactions were low, but higher-ranking stallions did not receive lower aggressiveness than lower-ranking stallions. There was some evidence that dominance relationships were more contested among close-ranking stallions, as predicted. Agonistic-related interactions among close-ranking stallions served similar functions to those among distant-ranking stallions, but the latter interacted more frequently than expected for access to resting sites and/or resting partners. Therefore, we found some evidence that agonistic-related interactions among distant-ranking stallions play a larger role in providing access to valuable and defendable resources than those among close-ranking stallions. Nevertheless, the fact that space to escape from aggression was limited and breeding access was independent from dominance rank may have reduced the benefits relative to costs of aggression and therefore limited the occurrence of contests over dominance and resources.
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Corporate Author Thesis
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5099
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Author Genty, E.; Byrne, R.
Title Why do gorillas make sequences of gestures? Type Journal Article
Year 2010 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 13 Issue 2 Pages 287-301
Keywords Great ape – Gestural communication – Syntax – Semantics – Interaction regulation
Abstract Abstract  Great ape gestures have attracted considerable research interest in recent years, prompted by their flexible and intentional pattern of use; but almost all studies have focused on single gestures. Here, we report the first quantitative analysis of sequential gesture use in western gorillas (Gorilla gorilla gorilla), using data from three captive groups and one African study site. We found no evidence that gesture sequences were given for reasons of increased communicative efficiency over single gestures. Longer sequences of repeated gestures did not increase the likelihood of response, and using a sequence was seldom in reaction to communicative failure. Sequential combination of two gestures with similar meanings did not generally increase effectiveness, and sometimes reduced it. Gesture sequences were closely associated with play contexts. Markov transition analysis showed two networks of frequently co-occurring gestures, both consisting of gestures used to regulate play. One network comprised only tactile gestures, the other a mix of silent, audible and tactile gestures; apparently, these clusters resulted from gesture use in play with proximal or distal contact, respectively. No evidence was found for syntactic effects of sequential combination: meanings changed little or not at all. Semantically, many gestures overlapped massively with others in their core information (i.e. message), and gesture messages spanned relatively few functions. We suggest that the underlying semantics of gorilla gestures is highly simplified compared to that of human words. Gesture sequences allow continual adjustment of the tempo and nature of social interactions, rather than generally conveying semantically referential information or syntactic structures.
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5114
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Author Krueger, K; Farmer, K.
Title Laterality in the Horse [Lateralität beim Pferd ] Type Journal Article
Year 2011 Publication mensch & pferd international Abbreviated Journal mup
Volume 4 Issue Pages 160-167
Keywords Laterality, horse, information processing, training, welfare, human-animal interaction
Abstract Horses are one-sided, not only on a motor level, but they also prefer to use one eye, ear or nostril over the other under particular circumstances. Horses usually prefer using the left eye to observe novel objects and humans. This preference is more marked in emotional situations and when confronted with unknown persons. Thus the horse’s visual laterality provides a good option for assessing its mental state during training or in human-horse interactions. A strong preference for the left eye may signal that a horse cannot deal with certain training situations or is emotionally affected by a particular person.

Pferde benutzen für die Begutachtung von Objekten und Menschen bevorzugt eine bestimmte Nüster, ein Ohr oder ein Auge. So betrachten die meisten Pferde Objekte und Menschen mit dem linken Auge. Die Lateralitätsforschung erklärt diese sensorische Lateralität mit der Verarbeitung von Informationen unterschiedlicher Qualität in verschiedenen Gehirnhälften und zeigt auf, dass positive und negative emotionale Informationen sowie soziale Sachverhalte mit dem linken Auge aufgenommen und vorwiegend an die rechte Gehirnhälfte weitergegeben werden. In diesem Zusammenhang ermöglicht die visuelle Lateralität, den Gemütszustand des Pferdes im Training und im therapeutischen Fördereinsatz zu erkennen und zu berücksichtigen.
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Corporate Author Thesis
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5444
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Author Maros, K.; Boross, B.; Kubinyi, E.
Title Approach and follow behaviour – possible indicators of the human-horse relationship Type Abstract
Year 2010 Publication Interaction Studies Abbreviated Journal
Volume 11 Issue 3 Pages 410-427
Keywords Approach; Follow; Human– Horse Interaction
Abstract The aim of our study was to analyze the behavioural responses of horses (N = 51) to familiar humans and to find factors that may affect these responses in three tests: (1) approach to, (2) standing beside, and (3) following the familiar person. We investigated the impacts of horse-related factors (gender and age) and human-related factors (type of work, housing management, amount of handling, number of handlers and training to follow).<br xmlns=“http://pub2web.metastore.ingenta.com/ns/”></br> Horses with one handler needed less time to approach the human than horses with more handlers. Standing beside the human correlated positively with following. Following was mainly affected by training.<br xmlns=“http://pub2web.metastore.ingenta.com/ns/”></br> According to our results, the number of handlers has an important effect on horses' responses to familiar humans, especially regarding approach and follow behaviour. However, following behaviour is fundamentally determined by training.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5728
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Author Flauger, B.
Title The introduction of horses into new social groups with special regard to their stress level Type Manuscript
Year 2011 Publication Abbreviated Journal
Volume Issue Pages
Keywords Pferd; Equiden; Eingliederungstechnik; Integrationspferd; Stress; Cortisol; Endokrine Reaktion; Gruppenhaltung; Verletzungsgefahr; Aggression; Futterplatzwahl; Kot; Geruchssinn; Mensch-Pferd Interaktion; horse; equids; introduction technique; integration horse; stress; cortisol; endocrine response; group housing; injury risk; aggression; feeding decision; faecal sample; olfaction; human-horse interaction
Abstract Horses are a highly social species living in complex social systems which should require them to memorise and generalise social experiences and distinguish between familiar and unfamiliar conspecifics. In the main part of my thesis I concentrated on the specific conflict situation of a horse being introduced into a new social group, and investigated its behaviour and stress level. Horses were either introduced (1) immediately, (2) after an observation period, or (3) together with an integration horse after an observation period. Additionally, in the second part of my thesis I arranged several experiments to elaborate additional aspects which could affect the behaviour of horses during introductions. In this study I could describe a simplified method for measuring stress through the analysis of faecal GCMs in horses. An enzyme immunoassay (EIA) for 11-oxoaetiocholanolone using 11-oxoaetiocholanolone-17-CMO: BSA (3?,11-oxo-A EIA) as antigen showed high amounts of immunoreactive substances. The new assay increases the accuracy of the test and lowers the expenses per sample; also storing of samples at room temperature after collection is less critical. This is a big advantage both in the field of wildlife management of equids and in the field of equestrian sports (chapter 1). Comparing the different introduction techniques, the introduction with an integration horse led to significantly less total interactions and lower levels of aggression than the introduction of single horses, both immediately and after several days of observing the new group. Additionally, by observing the behaviour of the horses during everyday sociality I could develop a formula describing the interrelationship between expected aggression level and enclosure size per horse. The curve takes an exponential shape. Starting from a space allowance of 300 m2 and more per horse, the amount of aggressions per hour approaches zero. For the reduction of aggression levels and injury risks in socially kept horses I recommend an enclosure size of at least 300 m2 per horse (chapter 2). I further investigated the stress level of the introduced animals. Horses which were immediately introduced did not show elevated faecal GCMs. In contrast, horses which were introduced after an observation period had slightly elevated values 2 and 3 days after the introduction. For horses introduced together with an integration horse faecal GCMs were significantly above the baseline value on the day of introduction and 1 day after it. These differences between introduction techniques indicate that the introduction event itself is not as stressful as previously assumed. Rather standing together with an integration horse and not being able to integrate immediately into the complete group elicits stress in horses (chapter 3). In the commentary of chapter 4 several studies are discussed which failed to demonstrate social learning in horses. It is argued that they did not consider important aspects which could have an influence, such as the dominance status or the social background of the horses (chapter 4). In chapter 5 a social feeding situation was investigated. The social rank as well as the position of conspecifics affected the feeding strategy of horses. Domestic horses used social cognition and strategic decision making in order to decide where to feed. When possible they tended to return to the same, continuously supplied feeding site and switched to an ?avoidance tendency? in the presence of dominant horses or when another horse was already feeding there (chapter 5). One possibility to recognize group members is through olfactory recognition. In chapter 6 it is shown that horses are able to distinguish their own from their conspecifics? faeces. In addition, they paid most attention to the faeces of those group members from which they received the highest amount of aggressive behaviour (chapter 6). Horses show cognitive abilities because they are able to use humans as local enhancement cues when searching for food, independently of their body posture or gaze consistency when the persons face them. Moreover, they seem to orientate on the attention of familiar persons more than of unfamiliar persons (chapter 7). Altogether, the results of this thesis provide further support for the view that horses show good conflict resolution strategies. They are perfectly able to deal with the conflict situation of being introduced to new group members, and the introduction event itself is not as stressful as previously assumed. It is rather suggested that standing together with an integration horse and not being able to integrate immediately into the complete group elicits stress in horses. All additional experimental set-ups could demonstrate that horses are well capable of social cognition.
Address
Corporate Author Thesis Ph.D. thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ epub18463 Serial 5736
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Author Zeitler-Feicht, M. H.; Streit, S.; Dempfle, L.
Title Automatic feeding systems for horses in group housing systems with regard to animal welfare. Part 1: Feeding stalls versus automatic feeding systems Type Journal Article
Year 2010 Publication Tierärztliche Praxis Großtiere Abbreviated Journal Tierärztl Prax
Volume 38 Issue G Pages 363-370
Keywords Pferd, Fütterungseinrichtungen, soziale Interaktionen, Herzfrequenz, Verletzungsrisiko, Betriebseinfluss [Horse, feeding stations, social interactions, heart rate, risk of injury, individual farm management]
Abstract Gegenstand und Ziel: Überprüfung der Tiergerechtheit von Abrufstationen

für Kraftfutter und Heu in der Gruppenhaltung von Pferden anhand

ethologischer und physiologischer Parameter im Vergleich zu konventionellen

Fressständen. Material und Methoden: Die Verhaltensbeobachtungen

fanden in 11 bzw. 10 Offenlaufställen mit Abrufstationen

bzw. Fressständen statt. 270 Pferde wurden individuell unterschieden.

Untersuchungsparameter waren: Drohverhalten mit und ohne Verletzungsrisiko,

Meideverhalten, Verdrängung aus dem Fressstand sowie

Herzfrequenz und Integumentverletzungen. In jedem Betrieb erfolgten

kontinuierliche Direktbeobachtungen für je einen 24-Stunden-Tag (Tortenstückverfahren).

Ergebnisse: Im Wartebereich der Abrufautomaten

traten signifikant mehr Drohgesten ohne bzw. mit Verletzungsgefahr je

Pferd und Tag (8,6 bzw. 3,0) auf als im Wartebereich der Fressstände

(3,4 bzw. 0,9). Demgegenüber konnten die Pferde in Abrufstationen

(1,4 Drohgesten je Pferd und Tag) ungestörter fressen als in Fressständen

(3,2 Drohgesten je Pferd und Tag). Insgesamt betrachtet ergab sich

jedoch bei beiden Fütterungssystemen eine geringe Anzahl an sozionegativen

Interaktionen im Bereich der Futtereinrichtungen. Die Herzfrequenz

lag im Warteareal im Durchschnitt im physiologischen Bereich

(44,59 ± 11,73 Schläge/min). Integumentverletzungen im Zusammenhang

mit dem Fütterungssystem traten nicht auf. Der wichtigste Einflussfaktor

auf die Untersuchungskriterien war der Betrieb (Fläche, Konzeption,

Management). Schlussfolgerung: Unter dem Aspekt der Tiergerechtheit

hinsichtlich des Stress- und Verletzungsrisikos durch soziale

Interaktionen eignen sich bei ordnungsgemäßer Gruppenhaltung mit

fachgerechtem Management sowohl Fressstände als auch Abrufstationen

für Pferde im Offenlaufstall.

[Objective: A comparison with regard to animal welfare of feeding

stalls and automatic feeding systems for hay and concentrates in group

housing systems for horses using parameters of ethology and physiology.

Material and method: The observations of animal behaviour took

place in 10 stables with feeding stalls and in 11 stables with automatic

feeding systems. The field around the feeding systems was divided into

three areas with comparable dimensions (waiting area, exit area and

inside of the feeding system). 270 horses were individually observed.

Parameters of research comprised: threatening behaviour with and

without risk of injury, avoiding behaviour, ”chasing away from the feeding

place”, as well as heart rate and injuries of the integument. Every

group of horses was continuously observed for 24 hours. This observation

took place on four different days and comprised six sessions, each

of 4 hours. Results: In the waiting area of the automatic systems there

were significantly more threatening gestures with and without risk of

injuries for each horse and day (8.6 and 3.0, respectively) than in the

waiting area of the feeding stalls. In contrast, the horses could eat more

relaxed in the automatic systems (1.4 threatening gestures for each

horse and day) than in the feeding stalls (3.2 threatening gestures for

each horse and day). All together the number of negative interactions in

the feeding area of both feeding systems was relatively low. The heart

rate was within the physiological range (44,59 ± 11,73 beats/min) in

the waiting area. There were no injuries of the integument in correlation

with the feeding systems. The most important factor of the observation

criteria was the individual group housing system with its different dimension,

conception and management. Conclusion: Under the aspect

of animal welfare both feeding systems are suitable for horses with respect

to the risk of stress and injuries by social interactions and under

the condition of proper group housing with professional management.]
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5765
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