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Author |
Goodwin, D. |
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Title |
The importance of ethology in understanding the behaviour of the horse |
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Journal Article |
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Year |
1999 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Veterinary Journal |
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Volume  |
31 |
Issue |
S28 |
Pages |
15-19 |
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Keywords |
horse; behaviour; domestication; interspecific communication |
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Summary Domestication has provided the horse with food, shelter, veterinary care and protection, allowing individuals an increased chance of survival. However, the restriction of movement, limited breeding opportunities and a requirement to expend energy, for the benefit of another species, conflict with the evolutionary processes which shaped the behaviour of its predecessors. The behaviour of the horse is defined by its niche as a social prey species but many of the traits which ensured the survival of its ancestors are difficult to accommodate in the domestic environment. There has been a long association between horses and man and many features of equine behaviour suggest a predisposition to interspecific cooperation. However, the importance of dominance in human understanding of social systems has tended to overemphasise its importance in the human-horse relationship. The evolving horse-human relationship from predation to companionship, has resulted in serial conflicts of interest for equine and human participants. Only by understanding the nature and origin of these conflicts can ethologists encourage equine management practices which minimise deleterious effects on the behaviour of the horse. |
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American Medical Association (AMA) |
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0425-1644 |
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Equine Behaviour @ team @ |
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6714 |
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Author |
Giraldeau, L.-A.; Lefebvre, L.; Morand-Ferron, J. |
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Title |
Can a restrictive definition lead to biases and tautologies? |
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Journal Article |
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Year |
2007 |
Publication |
Behavioral and Brain Sciences |
Abbreviated Journal |
Behav. Brain Sci. |
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30 |
Issue |
4 |
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411-412 |
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We argue that the operational definition proposed by Ramsey et al. does not represent a significant improvement for students of innovation, because it is so restrictive that it might actually prevent the testing of hypotheses on the relationships between innovation, ecology, evolution, culture, and intelligence. To avoid tautological thinking, we need to use an operational definition that is taxonomically unbiased and neutral with respect to the hypotheses to be tested. |
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Cambridge University Press |
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2007/12/17 |
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0140-525x |
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Equine Behaviour @ team @ |
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6533 |
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Baragli, P.; Vitale, V.; Paoletti, E.; Sighieri, C.; Reddon, A.R. |
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Title |
Detour behaviour in horses (Equus caballus) |
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Journal Article |
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Year |
2011 |
Publication |
Journal of Ethology |
Abbreviated Journal |
J. Ethol. |
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29 |
Issue |
2 |
Pages |
227-234 |
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Keywords |
Detour behaviour; Equus caballus; Horses; Lateralization; Spatial reasoning |
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The objective of this study was to investigate the ability of horses (Equus caballus) to detour around symmetric and asymmetric obstacles. Ten female Italian saddle horses were each used in three detour tasks. In the first task, the ability to detour around a symmetrical obstacle was evaluated; in the second and third tasks subjects were required to perform a detour around an asymmetrical obstacle with two different degrees of asymmetry. The direction chosen to move around the obstacle and time required to make the detour were recorded. The results suggest that horses have the spatial abilities required to perform detour tasks with both symmetric and asymmetric obstacles. The strategy used to perform the task varied between subjects. For five horses, lateralized behaviour was observed when detouring the obstacle; this was consistently in one direction (three on the left and two on the right). For these horses, no evidence of spatial learning or reasoning was found. The other five horses did not solve this task in a lateralized manner, and a trend towards decreasing lateralization was observed as asymmetry, and hence task difficulty, increased. These non-lateralized horses may have higher spatial reasoning abilities. |
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Springer Japan |
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English |
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0289-0771 |
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Equine Behaviour @ team @ |
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5686 |
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Author |
Flauger, B.; Krueger, K. |
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Title |
Aggressionslevel und Platzangebot bei Pferden (Equus caballus) [ Aggression level and enclosure size in horses (Equus caballus)] |
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Journal Article |
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Year |
2013 |
Publication |
Pferdeheilkunde |
Abbreviated Journal |
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29 |
Issue |
4 |
Pages |
495-504 |
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Aggression / Verletzungsgefahr / Sozialverhalten / Gruppenhaltung / Pferdehaltung / Eingliederung von Pferden [aggression / injury risk / social behaviour / group housing / horse management / introduction of horses] |
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Viele Pferdebesitzer bevorzugen aus Angst vor aggressiven Interaktionen und Verletzungsgefahr der Tiere untereinander die Einzelhaltung, obwohl von Tierschutzorganisationen die Gruppenhaltung für Pferde empfohlen wird. In dieser Studie beobachteten wir während des alltäglichen Soziallebens als auch bei der Eingliederung von neuen Gruppenmitgliedern das Sozialverhalten, insbesondere das Aggressionsverhalten, von elf Gruppen domestizierter Pferde (Equus caballus) verschiedener Größe und Zusammensetzung. Während des alltäglichen Soziallebens hatten die Gruppe und der Paddock-Typ (Gras / kein Gras) keinen Einfluss auf die Verhaltensweisen, wohingegen die Paddockgröße unter 10000 m2 einen signifikanten Einfluss auf die submissiven Verhaltensweisen (GzLM; n=56; t=-2.061, P=0.044) und einen nicht signifikanten Einfluss auf die aggressiven Verhaltensweisen (GzLM; n=56; t=-1.782, P=0.081) hatte. Allerdings verringerten sich sowohl die aggressiven als auch die submissiven Verhaltensweisen mit steigendem Platzangebot bis zu 10000 m2 (Spearman rank Korrelation; n=56; aggressive Verhaltensweisen: r = -0.313, P = 0.019; submissive Verhaltensweisen: r = -0.328, P = 0.014). Während den Eingliederungen reduzierten sich die Aggressionen pro Stunde mit der Vergrößerung des Platzangebotes (Spearman rank Korrelation; n=28; r=-0.402, P=0.034). Dies zeigte sich noch deutlicher, wenn Beobachtungen mit einem Platzangebot von über 10000 m2 ausgeschlos- sen wurden (Spearman rank Korrelation; n=23; r=-0.549, P=0.007). Während des alltäglichen Soziallebens näherte sich der Aggressionslevel der Nulllinie an, wenn das Platzangebot pro Pferd mehr als 331 m2 betrug. Deshalb empfehlen wir zur Reduzierung des Aggressionslevels und des Verletzungsrisikos von sozial gehaltenen Pferdegruppen ein Platzangebot von mindestens 331 m2 pro Pferd.
[Even though animal welfare organisations propose group housing for horse welfare, many owners stable horses individually for fear of aggressive interactions and injury risks. In the present study we observed social behaviour, and especially aggressiveness, in eleven domestic horse groups (Equus caballus) of different size and composition, in basic social situations and when new group members were introduced. During basic social situations, the group and the type of paddock (grass / no grass) had no effect on any of the behaviours, where- as the enclosure size below 10,000 m2 had a significant effect on submissive behaviour (GzLM; n=56; t=-2.061, P=0.044) and an insignificant effect on aggressive behaviour (GzLM; n=56; t=-1.782, P=0.081). However, aggressive and submissive behaviour dimi- nished with the increase of enclosure sizes up to 10,000 m2 (Spearman rank correlation; n = 56; aggressive behaviour: r = -0.313, P=0.019; submissive behaviour: r=-0.328, P=0.014). During introductions, aggression levels per hour decreased with any increase of enclosure size (Spearman rank correlation; n=28; r=-0.402, P=0.034) and even more when enclosure sizes above 10,000 m2 were excluded (Spearman rank correlation; n=23; r=-0.549, P=0.007). During basic social situations the aggression level approached zero when the space allowance was more than 331 m2 per horse. We therefore recommend keeping horse groups in an enclosure with at least 331 m2 per horse to reduce aggression and injuries.] |
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Equine Behaviour @ team @ |
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5714 |
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Author |
Smith, S.F.; Appleby, M.C.; Hughes, B.O. |
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Title |
Problem solving by domestic hens: opening doors to reach nest sites |
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Journal Article |
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Year |
1990 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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28 |
Issue |
3 |
Pages |
287-292 |
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In a trial of cage designs for laying hens, eggs were discovered in dust baths where access was restricted by a closed door during the normal laying period (08:00-13:00 h). Observations showed that the hens in these dust bath treatments had developed methods of opening the doors in order to lay in the baths. Three different methods of opening were observed. An average time of 34.4 min was spent attempting to open the doors before access was finally achieved. This implies a strong nesting motivation in these hens. The proportion of eggs laid in the dust baths increased (with occasional fluctuations) over a 24-week period. Door opening is likely to have initially developed in one individual in each cage through a trial and error basis, and then have been learned by cage mates through imitation. The speed and efficiency of door opening was not found to increase with experience or time. |
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0168-1591 |
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Equine Behaviour @ team @ |
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6164 |
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Author |
Proops, L.; Grounds, K.; Smith, A.V.; McComb, K. |
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Title |
Animals Remember Previous Facial Expressions that Specific Humans Have Exhibited |
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Journal Article |
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2018 |
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Current Biology |
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28 |
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9 |
Pages |
1428-1432.e4 |
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Keywords |
affective processing; face processing; ; animal-human interaction; interspecific communication; animal memory |
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Summary For humans, facial expressions are important social signals, and how we perceive specific individuals may be influenced by subtle emotional cues that they have given us in past encounters. A wide range of animal species are also capable of discriminating the emotions of others through facial expressions [1, 2, 3, 4, 5], and it is clear that remembering emotional experiences with specific individuals could have clear benefits for social bonding and aggression avoidance when these individuals are encountered again. Although there is evidence that non-human animals are capable of remembering the identity of individuals who have directly harmed them [6, 7], it is not known whether animals can form lasting memories of specific individuals simply by observing subtle emotional expressions that they exhibit on their faces. Here we conducted controlled experiments in which domestic horses were presented with a photograph of an angry or happy human face and several hours later saw the person who had given the expression in a neutral state. Short-term exposure to the facial expression was enough to generate clear differences in subsequent responses to that individual (but not to a different mismatched person), consistent with the past angry expression having been perceived negatively and the happy expression positively. Both humans were blind to the photograph that the horses had seen. Our results provide clear evidence that some non-human animals can effectively eavesdrop on the emotional state cues that humans reveal on a moment-to-moment basis, using their memory of these to guide future interactions with particular individuals. |
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0960-9822 |
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Equine Behaviour @ team @ |
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6394 |
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Passilongo, D.; Marchetto, M.; Apollonio, M. |
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Title |
Singing in a wolf chorus: structure and complexity of a multicomponent acoustic behaviour |
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Journal Article |
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2017 |
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Hystrix, the Italian Journal of Mammalogy |
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Hysterix |
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28 |
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2 |
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180-185 |
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Wolf choruses ( Canis lupus ) are complex, multicomponent signals, composed by a series of different vocalizations emitted by a pack. Although howls, the main component, have been highly studied, poor attention has been drawn upon the other vocalizations of the chorus. In this study, we investigate the structure of the chorus by means of the analysis and the quantification of the different components, taking advantage both of the digital sound recording and analysis, and of the modern statistical methodologies. We provide for the first time a detailed, objective description of the types of call emitted during the wolf howlings, combining spectrographic examinations, spectral analyses and automated classifications, with the aim to identify different types of call. Our results show that wolf choruses have a rich, complex structure, that reveals six other types of call, to be added to those howls already described in literature. Wolf choruses are typically composed by other three different types of calls: the bark, i.e. relatively long calls characterized by low frequencies and the presence of harsh components (deterministic chaos); the whimper, characterized by a harmonic structure and a very short duration; and the growl, a call with a noisy structure, low frequencies but relative long duration. Although further investigations are necessary to understand the meaning of the different calls, this research provides a basis for those studies that aim to compare wolves and other canids vocal behaviour. |
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0394-1914 |
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Equine Behaviour @ team @ Passilongo2017 |
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6441 |
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Fritts, S.H.; Bangs, E.E.; Gore, J.F. |
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The relationship of wolf recovery to habitat conservation and biodiversity in the northwestern United States |
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1994 |
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Landsc Urban Plan |
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Equine Behaviour @ team @ Fritts1994 |
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6453 |
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Gleerup, K.B.; Lindegaard, C. |
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Recognition and quantification of pain in horses: A tutorial review |
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2016 |
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Equine Veterinary Education |
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Equine Vet Educ |
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28 |
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1 |
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47-57 |
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horse; pain evaluation; pain scale; pain behaviour; pain face |
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Summary Pain management is dependent on the quality of the pain evaluation. Ideally, pain evaluation is objective, pain-specific and easily incorporated into a busy equine clinic. This paper reviews the existing knowledge base regarding the identification and quantification of pain in horses. Behavioural indicators of pain in horses in the context of normal equine behaviour, as well as various physiological parameters potentially useful for pain evaluation, are discussed. Areas where knowledge is sparse are identified and a new equine pain scale based on results from all reviewed papers is proposed. Finally, the most important considerations in relation to the implementation of a pain scale in a hospital setting are discussed. |
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American Medical Association (AMA) |
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0957-7734 |
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https://doi.org/10.1111/eve.12383 |
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Equine Behaviour @ team @ |
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6705 |
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Petherick, J.C.; Rutter, S.M. |
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Quantifying motivation using a computer-controlled push-door |
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1990 |
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Applied Animal Behaviour Science |
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Appl. Anim. Behav. Sci. |
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27 |
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1 |
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159-167 |
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A computer-controlled push-door system was designed and tested as a method for measuring motivation. Eleven domestic hens were trained to use the push-door to gain access to food. They were deprived of food for 12 h or 43 h on 12 occasions and the push-door was used to measure the amount of “work” (measured as force × time) that they performed to gain access to a food reward. When deprived of food for 12 h the hens took significantly longer (P<0.01) to reach the required threshold of work, than when deprived for 43 h. This difference arose from the amount of time that the hens spent not pushing at the door. The problems encountered with this system and such an approach to measuring motivation are discussed. |
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0168-1591 |
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Equine Behaviour @ team @ |
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6165 |
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