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Author |
von Borstel, U.U.; Duncan, I.J.H.; Shoveller, A.K.; Merkies, K.; Keeling, L.J.; Millman, S.T. |
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Title |
Impact of riding in a coercively obtained Rollkur posture on welfare and fear of performance horses |
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Journal Article |
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Year |
2009 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
116 |
Issue |
2-4 |
Pages |
228-236 |
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Keywords |
Horse; Coercive riding; Welfare; Rollkur; Fear; Training |
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Abstract |
Rollkur, the usually coercively obtained hyperflexion of the horse's neck, is employed as a training method by some dressage riders; however, its use is controversial as it may cause discomfort and adversely affect the horse's welfare. The objectives of this study were to determine: (1) if horses showed differences in stress, discomfort and fear responses as measured by heart rate and behaviour when ridden in Rollkur (R) obtained by pressure on the reins compared to regular poll flexion (i.e. with the nose-line being at or just in front of the vertical; N), and (2) if they showed a preference between the two riding styles when given the choice. Fifteen riding horses were ridden 30 times through a Y-maze randomly alternating between sides. Riding through one arm of the Y-maze was always followed by a short round ridden in R, whereas riding through the other arm was followed by a short round ridden in N. Immediately after the conditioning phase, horses were again repeatedly ridden into the maze; however, riders left it to the horse to decide which arm of the maze to enter. During R, horses moved slower and showed more often behavioural signs of discomfort, such as tail-swishing, head-tossing or attempted bucks (P < 0.05), and 14 of the 15 horses chose significantly (P < 0.05) more often the maze-arm associated with N rather than R. Subsequently, eight of the horses were also subjected to two fear tests following a short ride in N as well as a ride in R. During R, horses tended to react stronger (P = 0.092) to the fear stimuli and to take longer (P = 0.087) to approach them. These findings indicate that a coercively obtained Rollkur position may be uncomfortable for horses and that it makes them more fearful and therefore potentially more dangerous to ride. Further studies need to assess horses' reaction to gradual training of Rollkur, as opposed to a coercively obtained hyperflexion, in order to decide whether the practice should be banned. |
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0168-1591 |
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Equine Behaviour @ team @ |
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5096 |
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Author |
von Bayern, A.M.P. |
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Title |
The role of experience in problem solving and innovative tool use in crows |
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2009 |
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Curr Biol |
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19 |
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Equine Behaviour @ team @ von Bayern2009 |
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6290 |
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Author |
Verdolin, J. |
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Title |
Gunnison’s prairie dog (Cynomys gunnisoni): testing the resource dispersion hypothesis |
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Journal Article |
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Year |
2009 |
Publication |
Behavioral Ecology and Sociobiology |
Abbreviated Journal |
Beh. Ecol. Sociobiol. |
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63 |
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6 |
Pages |
789-799 |
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Biomedical and Life Sciences |
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Few studies have experimentally tested the resource dispersion hypothesis (RDH). In this study, I tested whether space use and social organization of Gunnison’s prairie dog responded to changes in the dispersion and abundance of resources. Food manipulations were carried out during the reproductive and nonreproductive seasons across 2 years. Gunnison’s prairie dog adults responded to the experiments by decreasing territory size as food became patchier in space and time. Both males and females modified their home ranges, with no detectable difference between sexes, either prior to or during the experiments. As food became patchier in space and time, the spatial overlap of adults increased, whereas it decreased as food became more evenly dispersed. The average size of a group, defined as those individuals occupying the same territory, did not change significantly as a result of the experiments. Where changes in the composition and size of groups did occur, there was no indication that such changes were sex specific. Results from this study support critical components of the RDH and strongly suggest that patterns of space use and social structure in Gunnison’s prairie dogs are the result of individual responses to resource abundance and distribution. |
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Springer Berlin / Heidelberg |
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0340-5443 |
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Equine Behaviour @ team @ |
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5468 |
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Author |
Veen, P.; Jefferson, R.; de Smidt, J.; van der Straaten, J. |
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Title |
Grasslands in Europe of high nature value |
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Book Whole |
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2009 |
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Brill |
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The Netherlands |
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No Linguistic Content |
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9789050113168 9050113168 9789004278103 9004278109 |
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Equine Behaviour @ team @ 6066883015 |
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6561 |
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VanDierendonck, M.C.; de Vries, H.; Schilder, M.B.H.; Colenbrander, B.; Þorhallsdóttir, A.G. and Sigurjónsdóttir, H. |
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Title |
Interventions in social behaviour in a herd of mares and geldings |
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Journal Article |
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Year |
2009 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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116 |
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1 |
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67-73 |
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Horses; Social relationships; Interventions; Mares; Geldings; Play; Allogrooming; Social network |
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Social dynamics and maintenance of social cohesion were studied by analysing social interventions in two groups of horses consisting of adult mares, their offspring, adult geldings and sub-adults. The animals were observed for a total of 1316 h. All relevant dyadic and triadic social interactions, including initial behaviour, possible intervention and outcome, were recorded. The main question was: do horses use interventions in affiliative interactions to safeguard their social network? Horses were significantly more likely to intervene in allogrooming or play interactions that involved a preferred partner. The stronger the preferred association in allogrooming, the higher the likelihood the intervener took over allogrooming with an initial dyad member. Interveners originating from two newly introduced groups (n = 3 and 5), intervened significantly more often when a member of their own group allogroomed with an unfamiliar horse. In play, no correlation with unfamiliarity was found. Overall, the intervening horses stopped more than half of the initial allogrooming interactions, and a third of all interactions. Therefore, social facilitation cannot sufficiently explain interference behaviour. This study shows that maintaining relationships with preferred partners is important to horses and has implications for equine husbandry and management. |
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0168-1591 |
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Equine Behaviour @ team @ |
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4766 |
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Author |
van Duyne, C.; Ras, E.; de Vos, A.E.W.; de Boer, W.F.; Henkens, R.J.H.G.; Usukhjargal, D. |
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Title |
Wolf Predation Among Reintroduced Przewalski Horses in Hustai National Park, Mongolia |
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Journal Article |
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2009 |
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Journal of Wildlife Management |
Abbreviated Journal |
Journal of Wildlife Management |
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73 |
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6 |
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836-843 |
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The Wildlife Society |
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0022-541x |
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doi: 10.2193/2008-027 |
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Equine Behaviour @ team @ |
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5776 |
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Author |
Uller, C.; Lewis, J. |
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Horses (Equus caballus) select the greater of two quantities in small numerical contrasts |
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Journal Article |
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2009 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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12 |
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5 |
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733-738 |
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Quantity representation – Horses – Number discrimination |
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Abstract The ability to select the greater numerosity over another in small sets seems to stem from the calculation of which set contains more, and has been taken as evidence of a primordial representation at the roots of the primate numerical system. We tested 56 horses (Equus caballus) in a paradigm previously used with human infants and nonhuman primates. Horses saw two quantities paired in contrasts—2 versus 1, 3 versus 2, 6 versus 4 and a control for volume, 2 versus 1 big—and had to make a choice by snout touching the container holding the numerosity selected. The horses spontaneously selected the greater of the two quantities when the numerosities were small. These results add to evidence showing spontaneous quantity assessment in a variety of species. |
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Equine Behaviour @ team @ |
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5028 |
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Author |
Tommasi, L. |
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Title |
Mechanisms and functions of brain and behavioural asymmetries |
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2009 |
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Philosophical Transactions of the Royal Society B: Biological Sciences |
Abbreviated Journal |
Phil. Trans. Biol. Sci. |
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364 |
Issue |
1519 |
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855-859 |
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For almost a century the field of brain and behavioural asymmetries has been dominated by studies on humans, resting on the evidence that the anatomical structures underlying language functions are asymmetrical, and that human handedness is lateralized at the population level. Today, there is not only evidence of population-level lateralization of brain and behaviour across a variety of vertebrate and invertebrate species, but also a growing consensus that the comparative analysis of the environmental and developmental factors that give origin to neural and behavioural laterality in animal models, together with theoretical analyses of their costs and benefits, will be crucial for understanding the evolutionary pathways that led to such a multifaceted phenomenon. The present theme issue provides a survey of theoretical, review and research work cutting across the biological and the cognitive sciences, focusing on various species of fishes, birds and primates (including humans) and emphasizing an integrative approach to the study of lateralization encompassing neural, behavioural, cognitive, developmental and environmental aspects. |
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Equine Behaviour @ team @ |
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5340 |
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Szabó, L.; Heltai, M.; Szucs, E.; Lanszki, J.; Lehoczki, R. |
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Title |
Expansion range of the golden jackal in Hungary between 1997 and 2006 |
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2009 |
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Mammalia |
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73 |
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Equine Behaviour @ team @ Szabó2009 |
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6461 |
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Spengler,A. Engel, H. |
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Human interaction with a gorilla family |
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2009 |
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Equine Behaviour @ team @ |
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5304 |
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