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Author  |
Bayley, P.; Martin, S.; Anson, M. |
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Title |
Temperature-jump circular dichroism: observation of chiroptical relaxation processes at millisecond time resolution |
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Journal Article |
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Year |
1975 |
Publication |
Biochemical and Biophysical Research Communications |
Abbreviated Journal |
Biochem Biophys Res Commun |
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Volume |
66 |
Issue |
1 |
Pages |
303-308 |
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*Alcohol Oxidoreductases/metabolism; Animals; Circular Dichroism; Horses; Kinetics; Liver/enzymology; Mathematics; Protein Conformation; Temperature; Time Factors |
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0006-291X |
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PMID:1172440 |
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Equine Behaviour @ team @ |
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3816 |
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Author |
Chase, I.D.; Tovey, C.; Spangler-Martin, D.; Manfredonia, M. |
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Title |
Individual differences versus social dynamics in the formation of animal dominance hierarchies |
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Journal Article |
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Year |
2002 |
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Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
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Volume |
99 |
Issue |
8 |
Pages |
5744-5749 |
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Keywords |
Animals; *Behavior, Animal; Fishes; Humans; *Social Behavior; *Social Dominance |
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Abstract |
Linear hierarchies, the classical pecking-order structures, are formed readily in both nature and the laboratory in a great range of species including humans. However, the probability of getting linear structures by chance alone is quite low. In this paper we investigate the two hypotheses that are proposed most often to explain linear hierarchies: they are predetermined by differences in the attributes of animals, or they are produced by the dynamics of social interaction, i.e., they are self-organizing. We evaluate these hypotheses using cichlid fish as model animals, and although differences in attributes play a significant part, we find that social interaction is necessary for high proportions of groups with linear hierarchies. Our results suggest that dominance hierarchy formation is a much richer and more complex phenomenon than previously thought, and we explore the implications of these results for evolutionary biology, the social sciences, and the use of animal models in understanding human social organization. |
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Department of Sociology, State University of New York, Stony Brook, NY 11794-4356, USA. Ichase@notes.cc.sunysb.edu |
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0027-8424 |
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PMID:11960030 |
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refbase @ user @ |
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442 |
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Author |
Deutsche Reiterliche Vereinigung e.V. (FN); Miesner,Susanne; Putz, Michael; Plewa ,Martin |
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Title |
Richtlinien für Reiten und Fahren – Band 1 |
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2005 |
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Grundausbildung für Reiter und Pferd |
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Abstract |
Dieses Standardwerk vermittelt das Grundwissen für die Ausbildung des Reiters und des Pferdes nach den Grundsätzen der klassischen Reitkunst. Die hier beschriebene Grundausbildung dient dabei nicht ausschließlich der Vorbereitung für Turniere und Leistungsprüfungen, sie soll vielmehr die Voraussetzungen für alle pferdesportlichen Betätigungen schaffen. |
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Fn-Verlag |
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Warendorf |
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German |
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978-3-88542-262-4 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4400 |
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Author |
Gutierrez Rincon, J.A.; Vives Turco, J.; Muro Martinez, I.; Casas Vaque, I. |
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Title |
A comparative study of the metabolic effort expended by horse riders during a jumping competition |
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Journal Article |
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Year |
1992 |
Publication |
British Journal of Sports Medicine |
Abbreviated Journal |
Br J Sports Med |
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26 |
Issue |
1 |
Pages |
33-35 |
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Keywords |
Adult; Animals; Energy Metabolism/*physiology; *Exertion; Heart Rate/physiology; Horses; Humans; Lactates/blood; *Sports |
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Abstract |
The three main Olympic horse riding disciplines are dressage, jumping, and three-day eventing (including dressage, cross country and jumping). In the jumping discipline (obstacle race), the 'team' (horse rider) is judged under the different conditions that might take place in a varied run. The horse is expected to show power and ability; the rider must show riding skill and good physical condition. However, the different conditions encountered by the rider during competition (duration of event, continuous isometric working level, especially in the inferior trunk, lead us to consider the need for a rider to develop different metabolic pathways to meet the high energy requirements of the competition. |
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Centre de Medicina de l'Esport de Barcelona, Spain |
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0306-3674 |
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PMID:1600451 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
3754 |
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Author |
Herron, M.A.; Martin, J.E.; Joyce, J.R. |
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Title |
Quantitative study of the decussating optic axons in the pony, cow, sheep, and pig. |
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Journal Article |
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Year |
1978 |
Publication |
American Journal of Veterinary Research |
Abbreviated Journal |
Am. J. Vet .Res. |
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39 |
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7 |
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1137-9 |
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Equine Behaviour @ team @ |
Serial |
5586 |
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Author |
Houpt, K.A.; Law, K.; Martinisi, V. |
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Title |
Dominance hierarchies in domestic horses |
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Journal Article |
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Year |
1978 |
Publication |
Applied Animal Ethology |
Abbreviated Journal |
Appl. Animal. Ethol. |
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Volume |
4 |
Issue |
3 |
Pages |
273-283 |
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Abstract |
Dominance hierarchies were studied in 11 herds of domestic horses and ponies (Equus caballus). A paired feeding test was utilized to establish the dominance--subordination relationship between each pair of animals in a herd. Aggressive actions, threats, bites, kicks and chases were also recorded. In small herds linear hierarchies were formed, but in large herds triangular relationships were observed. Aggression was correlated with dominance rank. Body weight, but not age, appear to affect rank in the equine hierarchy. Juvenile horses were more likely to share feed with each other than were adult horses and were usually subordinate to adult horses. The daughters of a dominant mare were dominant within their own herds. |
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refbase @ user @ |
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682 |
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Author |
Lacreuse, A.; Martin-Malivel, J.; Lange, H.S.; Herndon, J.G. |
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Title |
Effects of the menstrual cycle on looking preferences for faces in female rhesus monkeys |
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Journal Article |
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Year |
2007 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
10 |
Issue |
2 |
Pages |
105-115 |
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Keywords |
Animals; *Behavior, Animal; Discrimination Learning; Estradiol/blood; *Face; Female; Humans; Macaca mulatta/*physiology; Male; Menstrual Cycle/blood/*physiology; *Pattern Recognition, Visual |
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Fluctuations of ovarian hormones across the menstrual cycle influence a variety of social and cognitive behaviors in primates. For example, female rhesus monkeys exhibit heightened interest for males and increased agonistic interactions with other females during periods of high estrogen levels. In the present study, we hypothesized that females' preference for males during periods of high estrogen levels is also expressed at the level of face perception. We tested four intact females on two face-tasks involving neutral portraits of male and female rhesus monkeys, chimpanzees and humans. In the visual preference task (VP), monkeys had to touch a button to view a face image. The image remained on the screen as long as the button was touched, and the duration of pressing was taken as an index of the monkey's looking time for the face stimulus. In the Face-Delayed Recognition Span Test (Face-DRST), monkeys were rewarded for touching the new face in an increasing number of serially presented faces. Monkeys were tested 5 days a week across one menstrual cycle. Blood was collected every other day for analysis of estradiol and progesterone. Two of the four females were cycling at the time of testing. We did not find an influence of the cycle on Face-DRST, likely due to a floor effect. In the VP however, the two cycling individuals looked longer at conspecific male faces than female faces during the peri-ovulatory period of the cycle. Such effects were absent for human and chimpanzee faces and for the two noncycling subjects. These data suggest that ovarian hormones may influence females' preferences for specific faces, with heightened preference for male faces during the peri-ovulatory period of the cycle. Heightened interest for stimuli of significant reproductive relevance during periods of high conception risk may help guide social and sexual behavior in the rhesus monkey. |
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Department of Psychology, University of Massachusetts-Amherst, Tobin Hall, 135 Hicks Way, Amherst, MA 01003, USA. alacreuse@psych.umass.edu |
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1435-9448 |
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PMID:16909232 |
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Call Number |
Equine Behaviour @ team @ |
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2452 |
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Author |
Lloyd, A.S.; Martin, J.E.; Bornett-Gauci, H.L.I.; Wilkinson, R.G. |
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Title |
Horse personality: Variation between breeds |
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Journal Article |
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2008 |
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Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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112 |
Issue |
3-4 |
Pages |
369-383 |
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Keywords |
Horse personality; Breed; Assessment; Questionnaire survey; Animal |
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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 @ |
Serial |
4279 |
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Author |
Lloyd, A.S.; Martin, J.E.; Bornett-Gauci, H.L.I.; Wilkinson, R.G. |
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Title |
Evaluation of a novel method of horse personality assessment: Rater-agreement and links to behaviour |
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Journal Article |
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2007 |
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Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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105 |
Issue |
1-3 |
Pages |
205-222 |
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Keywords |
Personality; Horse; Individual differences; Behaviour; Reliability |
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Abstract |
The efficacy of questionnaire-based personality assessment has been shown in a variety of animal and human personality studies. There has been a recent increase in questionnaire-based studies focussing on equine personality but with a lack of comparability to studies on other species. The aim of this study was to test the reliability of an assessment method originally developed for primates and demonstrate reliability using three criteria (1) assessments by independent observers must agree with one another, (2) these assessments must predict behaviours and real-world outcomes and (3) observer ratings must be shown to reflect genuine attributes of the individuals rated, not merely the observer's implicit personality theories about how traits co-vary. The personality of 61 horses (Equus caballus) was assessed using a questionnaire constructed of 30 behaviourally defined adjectives (BDAs). Horses were each assessed by three judges, in addition to a total of 2 h behaviour observations recorded per horse. Rater agreement was demonstrated for 72.1% of the horses and 25 of the BDAs. Principal component analysis was carried out on the rating data and revealed six underlying personality components that were labelled “dominance”, “anxiousness”, “excitability”, “protection”, “sociability” and “inquisitiveness”. Component scores for horses were correlated against behavioural observations for the same horses and revealed significant correlations with 20 of the recorded behaviour variables. Correlations between specific components and their associated behaviours were logical and consistent with the types of behaviours that would be expected to be linked with such personality types. The data were shown to meet all three criteria and provided strong evidence that the assessment method was reliably measuring horse personality. |
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refbase @ user @ |
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1981 |
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Author |
Martin, P.; Bateson P. |
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Measuring Behaviour – An Introductory Guide |
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2007 |
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Cambridge University Press |
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Cambridge |
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Third Edition |
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Equine Behaviour @ team @ |
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5402 |
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