| Records |
| Author |
Krcmar, S.; Maric, S. |
| Title |
Analysis of the feeding sites for some horse flies (Diptera, Tabanidae) on a human in Croatia |
Type |
Journal Article |
| Year |
2006 |
Publication |
Collegium Antropologicum |
Abbreviated Journal |
Coll Antropol |
| Volume |
30 |
Issue |
4 |
Pages  |
901-904 |
| Keywords |
Animals; Croatia; *Diptera; Feeding Behavior; Humans; Insect Bites and Stings/*pathology |
| Abstract |
The landing patterns of horse flies on the human body were observed in Croatia. A total of 386 horse flies belonging to 22 species were sampled. The five most commonly collected species were used in the analysis. The stochastic linear connection is tight among the landings of the species Tabanus bromius, Tabanus maculicornis, Tabanus tergestinus, and Philipomyia graeca on the human body regions (matrix R). The preferred feeding area for these four species was the lower leg, whereas for the species Haematopota pluvialis it was the head and neck. Of the total number of horse flies that landed 44.81% were on the lower leg. Only 0.26% landed on the forearm. Chi-square analysis indicated non random landing patterns on human by these horse flies. |
| Address |
Department of Biology, University J. J. Strossmayer , Osijek, Croatia. stjepan@ffos.hr |
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English |
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0350-6134 |
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PMID:17243567 |
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no |
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Serial |
1837 |
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| Author |
Faria, J.J.; Dyer, J.R.G.; Tosh, C.R.; Krause, J. |
| Title |
Leadership and social information use in human crowds |
Type |
Journal Article |
| Year |
2010 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
79 |
Issue |
4 |
Pages |
895-901 |
| Keywords |
collective animal behaviour; group; human; inadvertent social cue; information; leadership |
| Abstract |
One of the big challenges for group-living animals is to find out who in a group has pertinent information (regarding food or predators) at any moment in time, because informed individuals may not be obviously recognizable to other group members. We found that individuals in human groups were capable of identifying those with information, and this identification increased group performance: the speed and accuracy of groups in reaching a target. Using video analysis we found how informed individuals might have been identified by other group members by means of inadvertent social cues (such as starting order, time spent following and group position). Furthermore, we were able to show that at least one of these cues, the group position of informed individuals, was indeed correlated with group performance. Our final experiment confirmed that leadership was even more efficient when the group members were given the identity of the leader. We discuss the effect of information status regarding the presence and identity of leaders on collective animal behaviour. |
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0003-3472 |
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no |
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Equine Behaviour @ team @ |
Serial |
5192 |
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| Author |
Neuringer, A. |
| Title |
Reinforced variability in animals and people: implications for adaptive action |
Type |
Journal Article |
| Year |
2004 |
Publication |
The American Psychologist |
Abbreviated Journal |
Am Psychol |
| Volume |
59 |
Issue |
9 |
Pages |
891-906 |
| Keywords |
Animals; Behavior, Animal; *Choice Behavior; Conditioning, Operant; Creativeness; Discrimination (Psychology); Humans; Memory; Problem Solving; *Reinforcement (Psychology) |
| Abstract |
Although reinforcement often leads to repetitive, even stereotyped responding, that is not a necessary outcome. When it depends on variations, reinforcement results in responding that is diverse, novel, indeed unpredictable, with distributions sometimes approaching those of a random process. This article reviews evidence for the powerful and precise control by reinforcement over behavioral variability, evidence obtained from human and animal-model studies, and implications of such control. For example, reinforcement of variability facilitates learning of complex new responses, aids problem solving, and may contribute to creativity. Depression and autism are characterized by abnormally repetitive behaviors, but individuals afflicted with such psychopathologies can learn to vary their behaviors when reinforced for so doing. And reinforced variability may help to solve a basic puzzle concerning the nature of voluntary action. |
| Address |
Department of Psychology, Reed College, Portland, OR 97202, USA. allen.neuringer@reed.edu |
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0003-066X |
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| Notes |
PMID:15584823 |
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no |
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Equine Behaviour @ team @ |
Serial |
4106 |
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| Author |
Sankey, C.; Richard-Yris, M.-A.; Leroy, H.; Henry, S.; Hausberger, M. |
| Title |
Positive interactions lead to lasting positive memories in horses, Equus caballus |
Type |
Journal Article |
| Year |
2010 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
| Volume |
79 |
Issue |
4 |
Pages |
869-875 |
| Keywords |
Equus caballus; horse; human–animal relationship; learning; memory; positive interaction; social cognition |
| Abstract |
Social relationships are important in social species. These relationships, based on repeated interactions, define each partner's expectations during the following encounters. The creation of a relationship implies high social cognitive abilities which require that each partner is able to associate the positive or negative content of an interaction with a specific partner and to recall this association. In this study, we tested the effects of repeated interactions on the memory kept by 23 young horses about humans, after 6 and 8 months of separation. The association of a reward with a learning task in an interactional context induced positive reactions towards humans during training. It also increased contact and interest, not only just after training, but also several months later, despite no further interaction with humans. In addition, this ‘positive memory’ of humans extended to novel persons. Overall, positive reinforcement enhanced learning and memorization of the task itself. These findings suggest remarkable social cognitive abilities that can be transposed from intraspecific to interspecific social contexts. |
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0003-3472 |
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no |
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Equine Behaviour @ team @ |
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5418 |
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| Author |
Rogers, A.R. |
| Title |
Does Biology Constrain Culture? |
Type |
Journal Article |
| Year |
1988 |
Publication |
American Anthropologist |
Abbreviated Journal |
Am Anthropol |
| Volume |
90 |
Issue |
4 |
Pages |
819-831 |
| Keywords |
models, learning, evolution, culture, fitness, adaptive, environment, human, natural selection, behavior |
| Abstract |
Most social scientists would agree that the capacity for human culture was probably fashioned by natural selection, but they disagree about the implications of this supposition. Some believe that natural selection imposes important constraints on the ways in which culture can vary, while others believe that any such constraints must be negligible. This article employs a “thought experiment” to demonstrate that neither of these positions can be justified by appeal to general properties of culture or of evolution. Natural selection can produce mechanisms of cultural transmission that are neither adaptive nor consistent with the predictions of acultural evolutionary models (those ignoring cultural evolution). On the other hand, natural selection can also produce mechanisms of cultural transmission that are highly consistent with acultural models. Thus, neither side of the sociobiology debate is justified in dismissing the arguments of the other. Natural selection may impose significant constraints on some human behaviors, but negligible constraints on others. Models of simultaneous genetic/cultural evolution will be useful in identifying domains in which acultural evolutionary models are, and are not, likely to be useful. |
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no |
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Equine Behaviour @ team @ citeulike:907484 |
Serial |
4199 |
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| Author |
McBride, S.D.; Long, L. |
| Title |
Management of horses showing stereotypic behaviour, owner perception and the implications for welfare |
Type |
Journal Article |
| Year |
2001 |
Publication |
The Veterinary Record |
Abbreviated Journal |
Vet. Rec. |
| Volume |
148 |
Issue |
26 |
Pages |
799-802 |
| Keywords |
*Animal Husbandry/methods; *Animal Welfare; Animals; England/epidemiology; Horse Diseases/*epidemiology/*prevention & control/psychology; Horses; Humans; Interviews; *Perception; *Stereotyped Behavior |
| Abstract |
A telephone survey was conducted of 100 racing stables, 100 riding schools and 100 competition establishments (8,427 horses in total) to determine what management practices were being applied to horses showing stereotypic behaviour, and to determine the underlying reasons for them by assessing the perceptions and opinions of the people working with the horses. The results indicated that horse owners are concerned about stereotypic behaviour, first, because it reduces the performance of the animal (31, 30 and 27 per cent of the owners of racing stables, riding schools and competition establishments respectively), secondly, because it has adverse clinical effects on the horse (52, 55 and 56 per cent), and thirdly, because it reduces the monetary value of the animal (45, 59 and 31 per cent). The belief that these behaviours are learnt or copied also affects the management of affected horses: they are not allowed on to the premises by 4, 32 and 17 per cent of owners of racing stables, riding schools and competition establishments, respectively; attempts are made to remove the causal factors of the stereotypy by 35, 43 and 36 per cent; the behaviours are physically prevented by 77, 67 and 79 per cent, and the affected horses are kept separate from other horses by 39, 30 and 48 per cent. |
| Address |
Institute of Rural Studies, University of Wales, Aberystwyth |
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English |
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0042-4900 |
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PMID:11467606 |
Approved |
no |
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refbase @ user @ |
Serial |
1918 |
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| Author |
Alexander, D.J. |
| Title |
Ecological aspects of influenza A viruses in animals and their relationship to human influenza: a review |
Type |
Journal Article |
| Year |
1982 |
Publication |
Journal of the Royal Society of Medicine |
Abbreviated Journal |
J R Soc Med |
| Volume |
75 |
Issue |
10 |
Pages |
799-811 |
| Keywords |
Animals; *Animals, Domestic; Bird Diseases/transmission; Birds; Disease Outbreaks; Ecology; Horse Diseases/transmission; Horses; Humans; Influenza A virus/genetics/isolation & purification; Influenza, Human/microbiology/*transmission/veterinary; Swine; Swine Diseases/transmission; Zoonoses/transmission |
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0141-0768 |
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PMID:6752410 |
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no |
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Equine Behaviour @ team @ |
Serial |
2689 |
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| Author |
Dyer, J.R.G.; Johansson, A.; Helbing, D.; Couzin, I.D.; Krause, J. |
| Title |
Leadership, consensus decision making and collective behaviour in humans |
Type |
Journal Article |
| Year |
2009 |
Publication |
Philosophical Transactions of the Royal Society B: Biological Sciences |
Abbreviated Journal |
Phil. Trans. Biol. Sci. |
| Volume |
364 |
Issue |
1518 |
Pages |
781-789 |
| Keywords |
* leadership * consensus decision making * collective behaviour * human group |
| Abstract |
This paper reviews the literature on leadership in vertebrate groups, including recent work on human groups, before presenting the results of three new experiments looking at leadership and decision making in small and large human groups. In experiment 1, we find that both group size and the presence of uninformed individuals can affect the speed with which small human groups (eight people) decide between two opposing directional preferences and the likelihood of the group splitting. In experiment 2, we show that the spatial positioning of informed individuals within small human groups (10 people) can affect the speed and accuracy of group motion. We find that having a mixture of leaders positioned in the centre and on the edge of a group increases the speed and accuracy with which the group reaches their target. In experiment 3, we use large human crowds (100 and 200 people) to demonstrate that the trends observed from earlier work using small human groups can be applied to larger crowds. We find that only a small minority of informed individuals is needed to guide a large uninformed group. These studies build upon important theoretical and empirical work on leadership and decision making in animal groups. |
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no |
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Equine Behaviour @ team @ |
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5122 |
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Fruehwirth, B.; Peham, C.; Scheidl, M.; Schobesberger, H. |
| Title |
Evaluation of pressure distribution under an English saddle at walk, trot and canter |
Type |
Journal Article |
| Year |
2004 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
36 |
Issue |
8 |
Pages |
754-757 |
| Keywords |
Animals; Back/*physiology; Biomechanics; Body Weight/physiology; Exercise Test/veterinary; Gait/*physiology; Horses/*physiology; Humans; Locomotion/*physiology; Pressure |
| Abstract |
REASONS FOR PERFORMING STUDY: Basic information about the influence of a rider on the equine back is currently lacking. HYPOTHESIS: That pressure distribution under a saddle is different between the walk, trot and canter. METHODS: Twelve horses without clinical signs of back pain were ridden. At least 6 motion cycles at walk, trot and canter were measured kinematically. Using a saddle pad, the pressure distribution was recorded. The maximum overall force (MOF) and centre of pressure (COP) were calculated. The range of back movement was determined from a marker placed on the withers. RESULTS: MOF and COP showed a consistent time pattern in each gait. MOF was 12.1 +/- 1.2 and 243 +/- 4.6 N/kg at walk and trot, respectively, in the ridden horse. In the unridden horse MOF was 172.7 +/- 11.8 N (walk) and 302.4 +/- 33.9 N (trot). At ridden canter, MOF was 27.2 +/- 4.4 N/kg. The range of motion of the back of the ridden horse was significantly lower compared to the unridden, saddled horse. CONCLUSIONS AND POTENTIAL RELEVANCE: Analyses may help quantitative and objective evaluation of the interaction between rider and horse as mediated through the saddle. The information presented is therefore of importance to riders, saddlers and equine clinicians. With the technique used in this study, style, skill and training level of different riders can be quantified, which would give the opportunity to detect potentially harmful influences and create opportunities for improvement. |
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Movement Science Group, Department V, Clinic of Orthopaedics in Ungulates, University of Veterinary Medicine, Vienna, Austria |
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English |
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0425-1644 |
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PMID:15656510 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
4041 |
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| Author |
Sankey, C.; Richard-Yris, M.-A.; Henry, S.; Fureix, C.; Nassur, F.; Hausberger, M. |
| Title |
Reinforcement as a mediator of the perception of humans by horses (Equus caballus) |
Type |
Journal Article |
| Year |
2010 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
13 |
Issue |
5 |
Pages |
753-764-764 |
| Keywords |
Perception of humans – Human/animal relationship – Positive reinforcement – Negative reinforcement – Equus caballus |
| Abstract |
A central question in the interspecific human/animal relationship is how domestic animals perceive humans as a significant element of their environment. In this study, we tested the hypothesis that the use of positive or negative reinforcement in horse training may have consequences on the animals’ perception of humans, as a positive, negative or neutral element. Two groups of ponies were trained to walk backwards in response to a vocal order using either positive or negative reinforcement. Heart rate monitors and behavioural observations were used to assess the animals’ perception of humans on the short (just after training) and long (5 months later) terms. The results showed that the type of reinforcement had a major effect on the subsequent animals’ perception of familiar and unfamiliar humans. Negative reinforcement was rapidly associated with an increased emotional state, as revealed by heart rate measurements and behavioural observations (head movements and ears laid back position). Its use led the ponies to seek less contact with humans. On the contrary, ponies trained with positive reinforcement showed an increased interest in humans and sought contact after training. This is especially remarkable as it was reached in a maximum of 5 sessions of 1 to 3 min (i.e. 5 to 15 min) and had lasting effects (visible after 5 months). Even learning was positively influenced by positive reinforcement. Overall, horses seem capable of associating humans to particular experiences and display extended long-term memory abilities. |
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Springer Berlin / Heidelberg |
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1435-9448 |
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no |
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Equine Behaviour @ team @ |
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5175 |
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