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Author |
Clutton-Brock, J. |
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Title |
Origins of the dog: domestication and early history |
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Book Chapter |
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Year |
1995 |
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The Domestic Dog: Its Evolution, Behaviour and Interactions with People |
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Cambridge University Press |
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Cambridge |
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Serpell, J.A. |
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Equine Behaviour @ team @ Clutton-Brock1995 |
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6247 |
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Author |
Murphy, J.; Arkins, S. |
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Title |
Laterality and visuo-spatial ability in the equine: Functional measures of sport horse selection? |
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Journal Article |
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Year |
2006 |
Publication |
BSAP Occasional Publication |
Abbreviated Journal |
BSAP Occasional Publication |
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Volume |
35 |
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Pages |
159-170 |
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Abstract |
Laterality in any organism or species can be manifest as morphological, sensory and functional degrees of asymmetry such as hemispheric dominance, handedness or sidedness and other motor functional behaviours and as such is equally important in equitation. The influence of the horses' sex on both the direction and the degree of the laterality was explored within and between 4 experimental procedures in the 1st study. The findings showed that the direction, but not the degree of idiosyncratic motor preference in the horses was strongly sex-related. Male horses exhibited significantly more left lateralized responses and female horses exhibited significantly more right lateralized responses. Visuo-spatial ability is also likely to be important in the performance horse. In many species, moderate to large differences in visuo-spatial ability have been reported between the sexes, with superior visuo-spatial ability being reported in males of all species investigated to date. As no known studies had addressed visuo-spatial ability in the equine, the objective of the 2nd study, was to determine if visuo-spatial ability differed between male and female horses. The results produced the first behavioural demonstration of superior visuo-spatial ability in male horses, similar to that reported in other species. There is evidence to suggest that visuospatial ability and motor laterality are associated with cerebral hemispheric asymmetry and may be intrinsically linked. Brain development and laterality have also been associated with hair patterning, and, in a 3rd study we attempted to identify predictors of lateral bias in motor behaviour in horses. We investigated the relationship between the direction of facial hair whorl rotation and the incidence/direction of laterality in the horse. The findings suggest that direction of facial hair whorl rotation may be a useful indicator of lateralised motor behavioural preferences in the horse. We then attempted to establish if laterality was evident at birth in a 4th study, where we explored if neonatal foals exhibited lateralised patterns during and immediately post the birthing process that were correlated with their facial hair whorl patterns. The results showed a significant association between the sex of the foal and the choice of foreleg presented initially during 2nd stage parturition. Significantly more colt foals led with the left foreleg and significantly more filly foals led with the right foreleg than expected purely by random and the behaviour was correlated with facial hair whorl patterns. The findings also suggest that lateralisation in the horse is determined in utero as has also been shown in humans. Comparisons of wholly intact male and female horses are warranted as they might elucidate additional linkages between motor behaviour, visuo-spatial ability and brain organisation and development in the horse. Further research in this area could lead to more appropriate competition conditions (better fence design/construction on cross-country tracks) and so eliminate unnecessary levels of risk associated with many equestrian sports. |
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Cambridge University Press |
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2018/02/27 |
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ISSN |
0263-967x |
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Call Number |
Equine Behaviour @ team @ |
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6512 |
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Author |
Giraldeau, L.-A.; Lefebvre, L.; Morand-Ferron, J. |
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Title |
Can a restrictive definition lead to biases and tautologies? |
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Journal Article |
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Year |
2007 |
Publication |
Behavioral and Brain Sciences |
Abbreviated Journal |
Behav. Brain Sci. |
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Volume |
30 |
Issue |
4 |
Pages |
411-412 |
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Abstract |
We argue that the operational definition proposed by Ramsey et al. does not represent a significant improvement for students of innovation, because it is so restrictive that it might actually prevent the testing of hypotheses on the relationships between innovation, ecology, evolution, culture, and intelligence. To avoid tautological thinking, we need to use an operational definition that is taxonomically unbiased and neutral with respect to the hypotheses to be tested. |
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Cambridge University Press |
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2007/12/17 |
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ISSN |
0140-525x |
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Call Number |
Equine Behaviour @ team @ |
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6533 |
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Author |
Chaplin, S.J.; Gretgrix, L. |
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Title |
Effect of housing conditions on activity and lying behaviour of horses |
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Journal Article |
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Year |
2010 |
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Abbreviated Journal |
animal |
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4 |
Issue |
5 |
Pages |
792-795 |
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Keywords |
lying, behaviour, activity, equine, housing |
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Housing conditions for horses impose various levels of confinement, which may compromise welfare. Lying behaviour and activity can be used as welfare indicators for domestic animals and rebound behaviour suggests a build-up of motivation resulting from deprivation. The objective of this study was to determine if activity and lying behaviour of horses are affected by housing conditions and to investigate the occurrence of rebound behaviour after release from confinement. Eight horses were subjected, in pairs, to each of four experimental treatments; paddock (P), fully stabled (FS), partly stabled (PS) and yard (Y). Each horse received 6 days acclimatisation prior to the 24 h recording period. Time spent in lying and activity were electronically recorded using a tilt switch and motion sensor connected to a data logger worn on the horse's left foreleg. Time spent active during the first 5 min of release from stable to paddock in the PS treatment (days 1 and 5) and at the same time of day in the P treatment was used as a measure of rebound behaviour. Effect of housing conditions on total time spent active was highly significant (FS = 123 s, PS = 158 s, Y = 377 s, P = 779 s, P < 0.001). Housing conditions did not significantly affect total time spent lying (P = 0.646). Horses were significantly more active, compared with baseline paddock behaviour, on release from stabling on both days 1 (P = 0.006) and 5 (P = 0.025) of PS treatment. These results suggest that activity patterns of horses, but not lying behaviour, are affected by the housing conditions tested and that rebound activity occurs in horses after a period of confinement. |
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Cambridge University Press |
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Edition |
2010/01/21 |
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ISSN |
1751-7311 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
6603 |
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Author |
Hunt, G.R.; Gray R.D.; Taylor, A.H. |
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Title |
Why is tool use rare in animals? |
Type |
Book Whole |
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Year |
2013 |
Publication |
Tool Use in Animals: Cognition and Ecology |
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Cambridge University Press |
Place of Publication |
Cambridge, MA. |
Editor |
anz C, Call J, Boesch C |
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Call Number |
Equine Behaviour @ team @ |
Serial |
6658 |
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Author |
Byrne R.W. |
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Title |
The evolution of intelligence |
Type |
Book Chapter |
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Year |
1994 |
Publication |
Behaviour and Evolution |
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Pages |
223-265 |
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Publisher |
Cambridge University Press |
Place of Publication |
Cambridge,UK |
Editor |
P.J.B. Slater and T.R. Halliday |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
6566 |
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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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Year |
2009 |
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Publisher |
Brill |
Place of Publication |
The Netherlands |
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Language |
No Linguistic Content |
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9789050113168 9050113168 9789004278103 9004278109 |
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no |
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Call Number |
Equine Behaviour @ team @ 6066883015 |
Serial |
6561 |
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Author |
Hoelker, S. |
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Title |
Typologie der deutschen Pferdehaltung – Eine empirische Studie mittels Two-Step-Clusteranalyse |
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Journal Article |
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Year |
2016 |
Publication |
Berichte über Landwirtschaft Zeitschrift für Agrarpolitik und Landwirtschaft |
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Volume |
94 |
Issue |
3 |
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Publisher |
BMEL |
Place of Publication |
Bonn |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
6643 |
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Author |
Quaresmini, C.; Forrester, G.S.; Spiezio, C.; Vallortigara, G. |
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Title |
Social environment elicits lateralized behaviors in gorillas (Gorilla gorilla gorilla) and chimpanzees (Pan troglodytes) |
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Journal Article |
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Year |
2014 |
Publication |
Journal of Comparative Psychology |
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Volume |
128 |
Issue |
3 |
Pages |
276-284 |
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Keywords |
*Animal Ethology; *Animal Social Behavior; *Chimpanzees; *Gorillas; *Social Influences; Cerebral Dominance; Lateral Dominance; Social Environments |
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Abstract |
The influence of the social environment on lateralized behaviors has now been investigated across a wide variety of animal species. New evidence suggests that the social environment can modulate behavior. Currently, there is a paucity of data relating to how primates navigate their environmental space, and investigations that consider the naturalistic context of the individual are few and fragmented. Moreover, there are competing theories about whether only the right or rather both cerebral hemispheres are involved in the processing of social stimuli, especially in emotion processing. Here we provide the first report of lateralized social behaviors elicited by great apes. We employed a continuous focal animal sampling method to record the spontaneous interactions of a captive zoo-living colony of chimpanzees (Pan troglodytes) and a biological family group of peer-reared western lowland gorillas (Gorilla gorilla gorilla). We specifically focused on which side of the body (i.e., front, rear, left, right) the focal individual preferred to keep conspecifics. Utilizing a newly developed quantitative corpus-coding scheme, analysis revealed both chimpanzees and gorillas demonstrated a significant group-level preference for focal individuals to keep conspecifics positioned to the front of them compared with behind them. More interestingly, both groups also manifested a population-level bias to keep conspecifics on their left side compared with their right side. Our findings suggest a social processing dominance of the right hemisphere for context-specific social environments. Results are discussed in light of the evolutionary adaptive value of social stimulus as a triggering factor for the manifestation of group-level lateralized behaviors. (PsycINFO Database Record (c) 2016 APA, all rights reserved) |
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Address |
Quaresmini, Caterina: Department of Psychology and Cognitive Sciences, University of Trento, Corso Bettini 31, Rovereto, Italy, 38068, caterina.quaresmini@gmail.com |
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American Psychological Association |
Place of Publication |
Us |
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ISSN |
1939-2087(Electronic),0735-7036(Print) |
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Call Number |
Equine Behaviour @ team @ 2014-13828-001 |
Serial |
6396 |
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Author |
Bonin, S.J.; Clayton, H.M.; Lanovaz, J.L.; Johnston, T. |
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Title |
Comparison of mandibular motion in horses chewing hay and pellets |
Type |
Journal Article |
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Year |
2007 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet. J. |
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Volume |
39 |
Issue |
3 |
Pages |
258-262 |
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Keywords |
horse; temporomandibular joint; mastication; kinematics |
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Abstract |
Summary Reasons for performing study: Previous studies have suggested that temporomandibular joint (TMJ) kinematics depend on the type of food being masticated, but accurate measurements of TMJ motion in horses chewing different feeds have not been published. Hypothesis: The temporomandibular joint has a larger range of motion when horses chew hay compared to pellets. Methods: An optical motion capture system was used to track skin markers on the skull and mandible of 7 horses as they chewed hay and pellets. A virtual marker was created on the midline between the mandibles at the level of the 4th premolar teeth to represent the overall motion of the mandible relative to the skull during the chewing cycle. Results: Frequency of the chewing cycles was lower for hay than for pellets. Excursions of the virtual mandibular marker were significantly larger in all 3 directions when chewing hay compared to pellets. The mean velocity of the virtual mandibular marker during the chewing cycle was the same when chewing the 2 feeds. Conclusions: The range of mediolateral displacement of the mandible was sufficient to give full occlusal contact of the upper and lower dental arcades when chewing hay but not when chewing pellets. Potential relevance: These findings support the suggestion that horses receiving a diet high in concentrate feeds may require more frequent dental prophylactic examinations and treatments to avoid the development of dental irregularities associated with smaller mandibular excursions during chewing. |
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Publisher |
American Medical Association (AMA) |
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ISSN |
0425-1644 |
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Notes |
doi: 10.2746/042516407X157792 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
6513 |
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