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Author |
Lloyd, A.S.; Martin, J.E.; Bornett-Gauci, H.L.I.; Wilkinson, R.G. |
Title |
Horse personality: Variation between breeds |
Type |
Journal Article |
Year |
2008 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
Volume |
112 |
Issue |
3-4 |
Pages |
369-383 |
Keywords |
Horse personality; Breed; Assessment; Questionnaire survey; Animal |
Abstract |
Anecdotal evidence from horse owners and handlers suggests the existence of breed typical behaviour and personality in horses. This is further supported by current research on heritability of personality characteristics in a range of species. The Horse Personality Questionnaire (HPQ) is a 25-item rating method that has previously been shown to be reliable for the assessment of personality in horses. Principal component analysis on HPQ data has identified six underlying personality components in horses. These are Dominance, Anxiousness, Excitability, Protection, Sociability and Inquisitiveness. Using the HPQ a survey of 1223 horses of eight different breeds was completed. Data were analysed to explore any differences in personality between breeds across the six personality components. Breed differences in personality were identified, and it was noted that variability between breeds varied between personality components. Anxiousness and Excitability showed the most variation between breeds, whilst Dominance and Protection showed the least variance. The results identified breed typical personalities that were comparable to results from previous studies as well as anecdotal evidence provided by the popular equine literature. The results are discussed in terms of the potential selection pressures that may have resulted in these differences. |
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Equine Behaviour @ team @ |
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4279 |
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Wolf, M.; van Doorn, G.S.; Leimar, O.; Weissing, F.J. |
Title |
Wolf et al. reply |
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Journal Article |
Year |
2007 |
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Nature |
Volume |
450 |
Issue |
7167 |
Pages |
E5-E6 |
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Nature Publishing Group |
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0028-0836 |
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10.1038/nature06327 |
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Equine Behaviour @ team @ |
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4297 |
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Jonart, L.M.; Hill, G.E.; Badyaev, A.V. |
Title |
Fighting ability and motivation: determinants of dominance and contest strategies in females of a passerine bird |
Type |
Journal Article |
Year |
2007 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
Volume |
74 |
Issue |
6 |
Pages |
1675-1681 |
Keywords |
aggression; Carpodacus mexicanus; communication; house finch; passerines; resource holding potential |
Abstract |
The communication of aggressive motivation or fighting ability has important fitness consequences for competing animals. Selection should favour rapid and honest communication between opponents to settle dominance relationships while avoiding prolonged and intense fighting. We investigated factors that influence fighting strategies and contest outcomes in female house finches, Carpodacus mexicanus, specifically focusing on the following questions. (1) What social contexts trigger an aggressive response? (2) Does body size and condition contribute to female fighting ability? (3) Do contextual factors, such as mate presence, nest status, nest proximity, and site experience contribute to fighting motivation? (4) Does contest intensity and duration increase as the differences in fighting ability between opponents decrease? (5) What is the relative contribution of fighting ability and aggressive motivation to the outcome of a contest? We found that aggression was triggered most frequently by female intrusions in the vicinity of nest and by extrapair female intrusions on an established pair. Female fighting and contest outcomes were strongly influenced by body condition and body size, and females were more motivated to initiate fights and won more contests when their mates were present. Females at the later breeding stages and those fighting closer to their nests were dominant and won more fights compared to females at earlier breeding stages or further from their nests. Females initiated a greater proportion of contests against opponents with similar local familiarity and breeding history. Escalated and prolonged contests, while rare, occurred exclusively between females of the most similar body size and condition. When differences in body condition between opponents are not easily perceived, contestants might escalate contests for more reliable assessments of relative fighting ability. Finally, body condition was not a strong determinant of contest outcome in the contexts with easily assessed differences in the resource value (e.g. mate presence), but without these motivational differences, body condition was the ultimate determinant of contest outcomes. |
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Equine Behaviour @ team @ |
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4317 |
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Jorgensen, G.H.M.; Boe, K.E. |
Title |
A note on the effect of daily exercise and paddock size on the behaviour of domestic horses (Equus caballus) |
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Journal Article |
Year |
2007 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
Volume |
107 |
Issue |
1-2 |
Pages |
166-173 |
Keywords |
Horse; Exercise; Paddock size; Behaviour; Turnout |
Abstract |
In a 2 x 3 factorial experiment we examined the effect of exercise (no exercise/daily exercise) and paddock size (small: 150 m2, medium: 300 m2 and large: 450 m2) on the behaviour of horses. In both these treatment periods nine (three cold blood and six warm blood) adult horses were exposed to all the three paddock size treatments for 2 h daily, for 1 week in each paddock size, and the order of paddock size treatments were rotated systematically. In between turnout in paddocks the horses were all housed in tie stalls. In the non-exercise period the horses walked significantly more, they travelled a longer distance, explored more and stood more alert, than in the period with exercise. The horses stood less passively in the large paddock compared to the medium and the small paddock, and they also travelled a longer distance in the larger paddock sizes. At days with heavy rain and wind, the horses were more restless and walked significantly more than in warmer weather. In conclusion; daily exercise significantly reduced the general activity in the paddocks. Increasing the paddock size to 450 m2, increased the time spent eating grass from under the fence and decreased the time spent standing passively. |
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Admin @ knut @ |
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4338 |
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Author |
Pick, D.F.; Lovell, G.; Brown, S.; Dail, D. |
Title |
Equine color perception revisited |
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Journal Article |
Year |
1994 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
Volume |
42 |
Issue |
1 |
Pages |
61-65 |
Keywords |
Equine; Color perception; Dichromat |
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An attempt to replicate Grzimek (1952; Z. Tierpsychol., 27: 330-338) is reported where a Quarter-Horse mare chose between colored and gray stimuli for food reinforcement. Stimuli varied across a broad range of reflectance values. A double-blind procedure with additional controls for auditory, olfactory, tactile, and position cues was used. The subject could reliably discriminate blue (462 nm) vs. gray, and red (700 nm) vs. gray without regard to reflectance (P<0.001), but could not discriminate green (496 nm) vs. gray. It is suggested that horses are dichromats in a manner similar to swine and cattle. |
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Equine Behaviour @ team @ |
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4368 |
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Fazio, F.; Assenza, A.; Piccione, G.; Caola, G. |
Title |
Periodic Monitoring of Some Physiological Parameters during Training in the Athletic Horse |
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2003 |
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Veterinary Research Communications |
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27 |
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595-598 |
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Equine Behaviour @ team @ |
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4384 |
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Dreber, A.; Rand, D.G.; Fudenberg, D.; Nowak, M.A. |
Title |
Winners don/'t punish |
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Journal Article |
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2008 |
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Nature |
Volume |
452 |
Issue |
7185 |
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348-351 |
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A key aspect of human behaviour is cooperation1, 2, 3, 4, 5, 6, 7. We tend to help others even if costs are involved. We are more likely to help when the costs are small and the benefits for the other person significant. Cooperation leads to a tension between what is best for the individual and what is best for the group. A group does better if everyone cooperates, but each individual is tempted to defect. Recently there has been much interest in exploring the effect of costly punishment on human cooperation8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23. Costly punishment means paying a cost for another individual to incur a cost. It has been suggested that costly punishment promotes cooperation even in non-repeated games and without any possibility of reputation effects10. But most of our interactions are repeated and reputation is always at stake. Thus, if costly punishment is important in promoting cooperation, it must do so in a repeated setting. We have performed experiments in which, in each round of a repeated game, people choose between cooperation, defection and costly punishment. In control experiments, people could only cooperate or defect. Here we show that the option of costly punishment increases the amount of cooperation but not the average payoff of the group. Furthermore, there is a strong negative correlation between total payoff and use of costly punishment. Those people who gain the highest total payoff tend not to use costly punishment: winners don't punish. This suggests that costly punishment behaviour is maladaptive in cooperation games and might have evolved for other reasons. |
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Nature Publishing Group |
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0028-0836 |
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10.1038/nature06723 |
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Equine Behaviour @ team @ |
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4406 |
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Author |
Romanes G.J. |
Title |
Animal Intelligence |
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1882 |
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Appleton |
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New York |
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Equine Behaviour @ team @ |
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4411 |
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Koolhaas, J.M.; Korte, S.M.; De Boer, S.F.; Van Der Vegt, B.J.; Van Reenen, C.G.; Hopster, H.; De Jong, I.C.; Ruis, M.A.W.; Blokhuis, H.J. |
Title |
Coping styles in animals: current status in behavior and stress-physiology |
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1999 |
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Neuroscience & Biobehavioral Reviews |
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23 |
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7 |
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925-935 |
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Coping; Aggression; Stress; Disease; Corticosterone |
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This paper summarizes the current views on coping styles as a useful concept in understanding individual adaptive capacity and vulnerability to stress-related disease. Studies in feral populations indicate the existence of a proactive and a reactive coping style. These coping styles seem to play a role in the population ecology of the species. Despite domestication, genetic selection and inbreeding, the same coping styles can, to some extent, also be observed in laboratory and farm animals. Coping styles are characterized by consistent behavioral and neuroendocrine characteristics, some of which seem to be causally linked to each other. Evidence is accumulating that the two coping styles might explain a differential vulnerability to stress mediated disease due to the differential adaptive value of the two coping styles and the accompanying neuroendocrine differentiation. |
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Equine Behaviour @ team @ |
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4416 |
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Steinbrecht, G. |
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Das Gymnasium des Pferdes |
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1935 |
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Richard Schröder |
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Berlin |
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Paul Plinzner |
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auf Grund neuer wissenschaftlicher Erkenntnisse und praktischer Erfahrungen fortgeführt v. Hans v. Heydebreck. |
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Equine Behaviour @ team @ |
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4420 |
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