| Records |
| Author |
Krueger, K. (ed) |
| Title |
Proceedings of the International Equine Science Meeting 2008 |
Type |
Conference Volume |
| Year |
2008 |
Publication |
IESM 2008 |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
Equine Ecology; Equine Sociality; Equine Learning; Equine Cognition; Equine Welfare |
| Abstract |
Target group: Biologists, Psychologists, Veterinarians and Professionals
Meeting target: Because the last international meeting on Equine Science took place a couple years ago, there is an urgent need for equine scientists to exchange scientific knowledge, coordinate research provide knowledge for practical application, and discus research results among themselves and with professionals who work with horses. Additionally, dialog concerning the coordination of the study “Equitation Science” in Europe is urgently needed. Coordination and cooperation shall arise from the meeting, enrich the research, and advance the application of scientific knowledge for the horses` welfare. |
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Publisher  |
Xenophon Verlag |
Place of Publication |
Wald |
Editor |
Krueger, K. |
| Language |
English |
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ISBN |
978-3-9808134-0-2 |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4508 |
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| Author |
Whitehead , H. |
| Title |
Analyzing Animal Societies. Quantitative Methods for Vertebrate Social Analysis |
Type |
Book Whole |
| Year |
2008 |
Publication |
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University of Chicago Press |
Place of Publication |
chicago |
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| Notes |
EAN: 9780226895246 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5838 |
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| Author |
Krösbacher, A. E. |
| Title |
Das Arabische Vollblut: Eine kontrovers diskutierte Rasse: Was steckt wirklich hinter der Zucht dieser edlen Pferde? |
Type |
Manuscript |
| Year |
2008 |
Publication |
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Abbreviated Journal |
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Thesis |
Bachelor's thesis |
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University for Veterinarian Medicine Vienna |
Place of Publication |
Vienna |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6544 |
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| Author |
Krueger, K. |
| Title |
Social Ecology of Horses |
Type |
Book Chapter |
| Year |
2008 |
Publication |
Ecology of Social Evolution |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
195-206 |
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| Abstract |
Horses (Equidae ) are believed to clearly demonstrate the links between ecology and social organization. Their social cognitive abilities enable them to succeed in many different environments, including those provided for them by humans, or the ones domestic horses encounter when escaping from their human care takers. Living in groups takes different shapes in equids. Their aggregation and group cohesion can be explained by Hamilton“s selfish herd theory. However, when an individual joins and to which group it joins appears to be an active individual decision depending on predation pressure, intra group harassment and resource availability. The latest research concerning the social knowledge horses display in eavesdropping experiments affirms the need for an extension of simple herd concepts in horses for a cognitive component. Horses obviously realize the social composition of their group and determine their own position in it. The horses exceedingly flexible social behavior demands for explanations about the cognitive mechanisms, which allow them to make individual decisions. ”Ecology conditions like those that favour the evolution of open behavioural programs sometimes also favour the evolution of the beginnings of consciousness, by favouring conscious choice. Or in other words, consciousness originates with the choice that are left open by open behavioural programs." Popper (1977) |
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Springer Verlag |
Place of Publication |
Heidelberg |
Editor |
j. Korb and J. Heinze |
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Approved |
no |
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Equine Behaviour @ team @ |
Serial |
4387 |
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| Author |
Powell, D. |
| Title |
Female–female competition or male mate choice? Patterns of courtship and breeding behavior among feral horses (Equus caballus) on Assateague Island |
Type |
Journal Article |
| Year |
2008 |
Publication |
Journal of Ethology |
Abbreviated Journal |
J. Ethol. |
| Volume |
26 |
Issue |
1 |
Pages |
137-144-144 |
| Keywords |
Biomedical and Life Sciences |
| Abstract |
Previous research on the Assateague horses found that high-ranking females had more surviving offspring than low-ranking females. Variance in reproductive success may be the result of a variety of proximate processes that affect sexual behavior such as mate choice and mate competition. A study was done to determine whether patterns of courtship, social, and sexual behavior could be identified that would suggest mate choice and/or mate competition. Behavioral data were collected from approximately 40 sexually mature mares living in harem bands. Stallions showed more interest in the eliminations of dominant mares than subordinate mares. Males also engaged in significantly more high-intensity (e.g., mounts and copulations) sexual behavior with dominant mares than subordinate mares, and there was a trend for males to engage in more low-intensity (e.g., flehmen and ano-genital sniffing) sexual behavior with dominant mares than subordinate mares. There was no effect of mare rank on spatial relationships with the stallion; however, dominant mares did attempt to restrict reproductive access to the stallion by harassing and disrupting copulations. Higher foaling rates among dominant mares on Assateague Island could therefore be the result of rank-related mate choice by stallions and direct female competition for mating opportunities. |
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Springer Japan |
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0289-0771 |
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Approved |
no |
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Equine Behaviour @ team @ |
Serial |
5412 |
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| Author |
Mirabet, V.; Fréon, P.; Lett, C. |
| Title |
Factors affecting information transfer from knowledgeable to naive individuals in groups |
Type |
Journal Article |
| Year |
2008 |
Publication |
Behavioral Ecology and Sociobiology |
Abbreviated Journal |
Behav. Ecol. Sociobiol. |
| Volume |
63 |
Issue |
2 |
Pages |
159-171-171 |
| Keywords |
Biomedical and Life Sciences |
| Abstract |
There is evidence that individuals in animal groups benefit from the presence of knowledgeable group members in different ways. Experiments and computer simulations have shown that a few individuals within a group can lead others, for a precise task and at a specific moment. As a group travels, different individuals possessing a particular knowledge may act as temporary leaders, so that the group will, as a whole, follow their behaviour. In this paper, we use a model to study different factors influencing group response to temporary leadership. The model is based on four individual behaviours. Three of those, attraction, repulsion, and alignment, are shared by all individuals. The last one, attraction toward the source of a stimulus, concerns only a fraction of the group members. We explore the influence of group size, proportion of stimulated individuals, number of influential neighbours, and intensity of the attraction to the source of the stimulus, on the proportion of the group reaching this source. Special attention is given to the simulation of large group size, close to those observed in nature. Groups of 100, 400 and 900 individuals are currently simulated, and up to 8,000 in one experiment. We show that more stimulated individuals and a larger group size both induce the arrival of a larger fraction of the group. The number of influential neighbours and the intensity of the stimulus have a non-linear influence on the proportion of the group arrival, displaying first a positive relationship and then, above a given threshold, a negative one. We conclude that an intermediate level of group cohesion provides optimal transfer information from knowledgeable to naive individuals. |
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Springer Berlin / Heidelberg |
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0340-5443 |
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no |
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Equine Behaviour @ team @ |
Serial |
5295 |
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| Author |
Yorke, J.; Adams, C.; Coady, N. |
| Title |
Therapeutic Value of Equine-Human Bonding in Recovery from Trauma |
Type |
Journal Article |
| Year |
2008 |
Publication |
Anthrozoös |
Abbreviated Journal |
Anthrozoös |
| Volume |
21 |
Issue |
1 |
Pages |
17-30 |
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| Abstract |
ABSTRACTAlthough most human-animal bond research has focused on relationships between humans and pets, animals have been used for therapeutic purposes in a variety of settings. Therapeutic riding programs have demonstrated a positive impact on quality of life for people with disabilities. Equine-facilitated psychotherapy is a promising approach to address self-esteem, depression, and other emotional or psychological problems. Restoration of the trauma victim's capacity for recovery hinges on provision of safety and development of trust, self-esteem, and self-efficacy. Thus, recovery from trauma represents an ideal context for exploring the therapeutic impact of equine?human relationships. The six participants in this study recognized that their pre-existing relationships with horses were therapeutic during recovering from trauma, defined as sufficient to have caused significant change in the participant's life. Semi-structured interviews and video-tapes of horse?rider interaction were used to describe the nature of the equine?human bond and its contribution to recovery from trauma. The equine?human bonds described by participants have parallels both with important elements of therapeutic alliances between professionals and clients and with the positive impact of relationship factors on client outcome. |
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Routledge |
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0892-7936 |
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| Notes |
doi: 10.2752/089279308X274038 |
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no |
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Equine Behaviour @ team @ |
Serial |
6033 |
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| Author |
Roth, L.S.V.; Balkenius, A.; Kelber, A. |
| Title |
The Absolute Threshold of Colour Vision in the Horse |
Type |
Journal Article |
| Year |
2008 |
Publication |
PLoS ONE |
Abbreviated Journal |
PLoS ONE |
| Volume |
3 |
Issue |
11 |
Pages |
e3711 EP - |
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| Abstract |
<p>Arrhythmic mammals are active both during day and night if they are allowed. The arrhythmic horses are in possession of one of the largest terrestrial animal eyes and the purpose of this study is to reveal whether their eye is sensitive enough to see colours at night. During the day horses are known to have dichromatic colour vision. To disclose whether they can discriminate colours in dim light a behavioural dual choice experiment was performed. We started the training and testing at daylight intensities and the horses continued to choose correctly at a high frequency down to light intensities corresponding to moonlight. One Shetland pony mare, was able to discriminate colours at 0.08 cd/m2, while a half blood gelding, still discriminated colours at 0.02 cd/m2. For comparison, the colour vision limit for several human subjects tested in the very same experiment was also 0.02 cd/m2. Hence, the threshold of colour vision for the horse that performed best was similar to that of the humans. The behavioural results are in line with calculations of the sensitivity of cone vision where the horse eye and human eye again are similar. The advantage of the large eye of the horse lies not in colour vision at night, but probably instead in achromatic tasks where presumably signal summation enhances sensitivity.</p> |
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Public Library of Science |
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Equine Behaviour @ team @ |
Serial |
5625 |
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Dwan, K.; Altman, D.G.; Arnaiz, J.A.; Bloom, J.; Chan, A.-W.; Cronin, E.; Decullier, E.; Easterbrook, P.J.; Von Elm, E.; Gamble, C.; Ghersi, D.; Ioannidis, J.P.A.; Simes, J.; Williamson, P.R. |
| Title |
Systematic Review of the Empirical Evidence of Study Publication Bias and Outcome Reporting Bias |
Type |
Journal Article |
| Year |
2008 |
Publication |
Plos One |
Abbreviated Journal |
Plos One |
| Volume |
3 |
Issue |
8 |
Pages |
e3081 |
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| Abstract |
Background The increased use of meta-analysis in systematic reviews of healthcare interventions has highlighted several types of bias that can arise during the completion of a randomised controlled trial. Study publication bias has been recognised as a potential threat to the validity of meta-analysis and can make the readily available evidence unreliable for decision making. Until recently, outcome reporting bias has received less attention. Methodology/Principal Findings We review and summarise the evidence from a series of cohort studies that have assessed study publication bias and outcome reporting bias in randomised controlled trials. Sixteen studies were eligible of which only two followed the cohort all the way through from protocol approval to information regarding publication of outcomes. Eleven of the studies investigated study publication bias and five investigated outcome reporting bias. Three studies have found that statistically significant outcomes had a higher odds of being fully reported compared to non-significant outcomes (range of odds ratios: 2.2 to 4.7). In comparing trial publications to protocols, we found that 40-62% of studies had at least one primary outcome that was changed, introduced, or omitted. We decided not to undertake meta-analysis due to the differences between studies. Conclusions Recent work provides direct empirical evidence for the existence of study publication bias and outcome reporting bias. There is strong evidence of an association between significant results and publication; studies that report positive or significant results are more likely to be published and outcomes that are statistically significant have higher odds of being fully reported. Publications have been found to be inconsistent with their protocols. Researchers need to be aware of the problems of both types of bias and efforts should be concentrated on improving the reporting of trials. |
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Public Library of Science |
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Equine Behaviour @ team @ |
Serial |
6644 |
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| Author |
Virányi, Zs.; Range, F.; Huber, L. |
| Title |
Attentiveness toward others and social learning in domestic dogs. |
Type |
Book Chapter |
| Year |
2008 |
Publication |
Learning from Animals?: Examining the Nature of Human Uniqueness |
Abbreviated Journal |
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Issue |
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Pages |
141-154 |
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Psychology Press |
Place of Publication |
New York, NY |
Editor |
Röska-hardy,L.S.. ;Neumann-held, E. |
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978-1-84169-707-9 |
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Equine Behaviour @ team @ |
Serial |
4974 |
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