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	Author	Holmstrom, M.; Fredricson, I.; Drevemo, S.
	Title	Biokinematic effects of collection on the trotting gaits in the elite dressage horse			Type	Journal Article
	Year	1995	Publication	Equine Veterinary Journal	Abbreviated Journal	Equine Vet J
	Volume	27	Issue	4	Pages	281-287
	Keywords	Animals; Biomechanics; Female; Gait/physiology; Horses/physiology; Kinesics; Male; Video Recording
	Abstract	Trot in hand, working trot, collected trot, passage and piaffe of 6 Grand Prix dressage horses were recorded by high speed film (250 frames/s). Angular patterns and hoof trajectories of the left fore- and hindlimbs were analysed and presented as mean and standard deviation (s.d.) curves. Speed and stride length decreased and fore- and hind stance phase durations increased with collection resulting in no suspension in piaffe. The diagonal advanced placement was positive in all gaits except for piaffe. Most of the changes in forelimb angular patterns were effects of reduction in forelimb pendulation. The horses did not step under themselves more in collected trot, passage and piaffe than in trot in hand. The stifle and hock joints were more flexed at the start of the stance phase in piaffe and passage than in the other gaits. Flexion of the hock joint at the middle of the stance phase was largest in passage and piaffe. In spite of the limited number of horses the present study confirmed earlier observations of conformation and gaits in dressage horses. Hindlimb pendulation, femur and pelvis inclinations and elbow, carpal, stifle and hock joint angles seem to be the most significant angular measurements for dressage performance.
	Address	Swedish National Stud, Flyinge
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0425-1644	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:8536664			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3742
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	Author	Clayton, H.M.
	Title	Comparison of the stride kinematics of the collected, medium, and extended walks in horses			Type	Journal Article
	Year	1995	Publication	American Journal of Veterinary Research	Abbreviated Journal	Am J Vet Res
	Volume	56	Issue	7	Pages	849-852
	Keywords	Analysis of Variance; Animals; Gait; Horses/physiology; *Locomotion; Motion Pictures; Physical Conditioning, Animal; Walking
	Abstract	Six horses, highly trained for dressage competition, were used to study the stride kinematics of the walk, and to compare the kinematics of the collected, medium, and extended walks. Horses were filmed in a sagittal plane at a rate of 150 frames/s; temporal, linear, and angular data were extracted from the films. Results of ANOVA and Duncan's multiple range test indicated that the speed of the collected walk (1.37 m/s) was significantly (P < 0.01) slower than that of the medium (1.73 m/s) and extended (1.82 m/s) walks, values for which were not significantly different from each other. The increase in speed was associated with a significant increase in stride length, from 157 cm in the collected walk to 193 cm in the extended walk. This was a result of an increase in the over-tracking distance, whereas there was no significant difference in the distance between lateral placements of the limbs. Stride duration decreased (P < 0.01) from the collected walk (1,159 ms) to the extended walk (1,064 ms). Angles of the metacarpal and metatarsal segments, measured on the palmar/ plantar aspect, were higher at impact and lower at lift off in the collected than in the extended walk (P < 0.01). This indicated greater range of angular motion of this segment during the stance phase in the extended walk. Only 1 of the 6 horses had a regular 4-beat rhythm of the footfalls, with equal time elapsing between the lateral and diagonal footfalls.
	Address	Department of Veterinary Anatomy, Western College of Veterinary Medicine, Canada
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0002-9645	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:7574149			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3743
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	Author	Barnes, H.G.; Tucker, R.L.; Grant, B.D.; Roberts, G.D.; Prades, M.
	Title	Lag screw stabilization of a cervical vertebral fracture by use of computed tomography in a horse			Type	Journal Article
	Year	1995	Publication	Journal of the American Veterinary Medical Association	Abbreviated Journal	J Am Vet Med Assoc
	Volume	206	Issue	2	Pages	221-223
	Keywords	Animals; Bone Screws/veterinary; Cervical Vertebrae/injuries/surgery; Fracture Fixation, Internal/methods/veterinary; Horses/injuries/surgery; Male; Spinal Fractures/surgery/*veterinary; Tomography, X-Ray Computed/veterinary
	Abstract	A traumatic fracture of C2 was diagnosed radiographically in a 1-year-old German Warm-blood stallion. Fracture configuration was difficult to see on survey radiographs. Computed tomography yielded a more accurate assessment of the fracture and facilitated fracture repair with cortical lag screws. Precise screw placement, to avoid spinal cord damage, was obtained by use of computed tomography. Follow-up radiography revealed normal bone healing, and the horse was in dressage schooling 24 months after surgery.
	Address	Department of Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman 99164-6610
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0003-1488	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:7751226			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3744
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	Author	Koenen, E.P.C.; van Veldhuizen, A.E.; Brascamp, E.W.
	Title	Genetic parameters of linear scored conformation traits and their relation to dressage and show-jumping performance in the Dutch Warmblood Riding Horse population			Type	Journal Article
	Year	1995	Publication	Livestock Production Science	Abbreviated Journal
	Volume	43	Issue	1	Pages	85-94
	Keywords	Horse; Heritability; Conformation; Dressage; Show jumping
	Abstract	In this study genetic parameters of linear scored conformation traits of the Dutch Warmblood Riding Horse were estimated in relation to performance in competition. Observations on 10 665 mares were analyzed with an animal model including the fixed effects age, classifier, location and percentage of thoroughbred. Using restricted maximum likelihood algorithms, heritabilities of 26 linear scored conformation traits were estimated in the range 0.09-0.28. Several conformation traits had high up to very high mutual genetic correlations. Competition results of 3476 horses with performance in dressage and 3220 horses with performance in show-jumping were linked to the conformation data to estimate the genetic relationship between conformation and performance in competition. The model for the evaluation of the competition results included the fixed effects riding club, age and sex. Estimated heritabilities for dressage and show-jumping were 0.17 +/- 0.05 and 0.19 +/- 0.04, respectively. Genetic correlations between conformation and performance were low to moderate. The length of the neck, length and position of the shoulders, shape and length of croup and muscularity of the haunches had a significant moderate genetic correlation with dressage. Muscularity of the neck, shape of the croup and muscularity of the haunches had a significant genetic correlation with show-jumping. The results indicate that, due to the low genetic correlations with performance traits, indirect selection for performance using conformation results is of limited value.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	refbase @ user @			Serial	3961
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	Author	Loveland, K.A.
	Title	Self-recognition in the bottlenose dolphin: ecological considerations			Type	Journal Article
	Year	1995	Publication	Consciousness and Cognition	Abbreviated Journal	Conscious Cogn
	Volume	4	Issue	2	Pages	254-257
	Keywords	Animals; Attention; Awareness; Body Image; Dolphins/psychology; Exploratory Behavior; Female; Male; Self Concept; Social Environment; Species Specificity; Television; *Visual Perception
	Abstract
	Address	Department of Psychiatry and Behavioral Sciences, University of Texas Medical School, Houston 77025, USA
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1053-8100	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:8521267			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4161
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	Author	Hart, D.; Whitlow, J.W.J.
	Title	The experience of self in the bottlenose dolphin			Type	Journal Article
	Year	1995	Publication	Consciousness and Cognition	Abbreviated Journal	Conscious Cogn
	Volume	4	Issue	2	Pages	244-247
	Keywords	Animal Communication; Animals; Awareness; Body Image; Dolphins/psychology; Female; Humans; Male; Self Concept; Social Behavior; Species Specificity; Television; *Visual Perception
	Abstract	Marten and Psarakos have presented some evidence which suggests that objective self-awareness and possibly representations of self may characterize the dolphins' experience of self. Their research demonstrates the possibility of similarities in the sense of self between primate species and dolphins, although whether dolphins have subjective self-awareness, personal memories, and theories of self--all important facets of the sense of self in humans--was not examined. Clearly, even this limited evidence was difficult to achieve; the difficulties in adapting methods and coding behavior are quite apparent in their report. Future progress, however, may depend upon clarification of what are the necessary components for a sense of self and an explication of how these might be reflected in dolphin behavior. We are mindful of the authors' point (pp. 219 and 220) that the dolphin lives more in an acoustic than a visual environment. Thus, while tasks relying upon vision may reveal the presence or absence of the sense of self in primates, it might well be the case that in dolphins self-related experiences might be better revealed in auditory tasks. But then, what is the nature of human self-awareness in terms of audition? While both conceptual and methodological hurdles remain, Marten and Psarakos have demonstrated that important questions can be asked about the minds and phenomenal worlds of nonanthropoid species.
	Address	Department of Psychology, Rutgers University, Camden, New Jersey 08102, USA
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1053-8100	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:8521264			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4162
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	Author	Anderson, J.R.
	Title	Self-recognition in dolphins: credible cetaceans; compromised criteria, controls, and conclusions			Type	Journal Article
	Year	1995	Publication	Consciousness and Cognition	Abbreviated Journal	Conscious Cogn
	Volume	4	Issue	2	Pages	239-243
	Keywords	Animal Communication; Animals; Awareness; Discrimination Learning; Dolphins/psychology; Female; Male; Orientation; Self Concept; Social Behavior; Television; *Visual Perception
	Abstract
	Address	Laboratoire de Psychophysiologie, CNRS URA 1295, Universite Louis Pasteur, Strasbourg, France
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1053-8100	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:8521263			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4163
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	Author	Marten, K.; Psarakos, S.
	Title	Using self-view television to distinguish between self-examination and social behavior in the bottlenose dolphin (Tursiops truncatus)			Type	Journal Article
	Year	1995	Publication	Consciousness and Cognition	Abbreviated Journal	Conscious Cogn
	Volume	4	Issue	2	Pages	205-224
	Keywords	Animal Communication; Animals; Attention; Discrimination Learning; Dolphins/psychology; Female; Male; Self Concept; Social Behavior; Television; Visual Perception
	Abstract	In mirror mark tests dolphins twist, posture, and engage in open-mouth and head movements, often repetitive. Because postures and an open mouth are also dolphin social behaviors, we used self-view television as a manipulatable mirror to distinguish between self-examination and social behavior. Two dolphins were exposed to alternating real-time self-view (“mirror mode”) and playback of the same to determine if they distinguished between them. The adult male engaged in elaborate open-mouth behaviors in mirror mode, but usually just watched when played back the same material. Mirror mode behavior was also compared to interacting with real dolphins (controls). Mark tests were conducted, as well as switches from front to side self-views to see if the dolphins turned. They presented marked areas to the self-view television and turned. The results suggest self-examination over social behavior.
	Address	Earthtrust, Kailua, Hawaii 96734, USA
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1053-8100	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:8521259			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4164
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	Author	Boyd, R.; Richerson, P.J.
	Title	Why does culture increase human adaptability?			Type	Journal Article
	Year	1995	Publication	Ethology and Sociobiology	Abbreviated Journal	Ethol. a. Sociob.
	Volume	16	Issue	2	Pages	125-143
	Keywords	Social learning; Adaptation; Culture; Sociobiology
	Abstract	It is often argued that culture is adaptive because it allows people to acquire useful information without costly learning. In a recent paper Rogers (1989) analyzed a simple mathematical model that showed that this argument is wrong. Here we show that Rogers' result is robust. As long as the only benefit of social learning is that imitators avoid learning costs, social learning does not increase average fitness. However, we also show that social learning can be adaptive if it makes individual learning more accurate or less costly.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4196
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	Author	de Vries, H.
	Title	An improved test of linearity in dominance hierarchies containing unknown or tied relationships			Type	Journal Article
	Year	1995	Publication	Animal Behaviour.	Abbreviated Journal	Anim. Behav.
	Volume	50	Issue	5	Pages	1375-1389
	Keywords
	Abstract	Appleby (1983, Anim. Behav., 31, 600-608) described a statistical test, based on the work of Kendall (1962, Rank Correlation Methods), for the significance of linearity in dominance hierarchies. He suggested that unknown relationships should be assigned the value 1/2 and that subsequently the same test procedure can be used. In this paper it is shown that incorrect results are obtained by this method whenever there are unknown relationships. Values of the linearity index are systematically too low. P-values can be too high (underestimating the significance) or too low (overestimating), and seem to differ by not much more than a factor two (respectively a half) from the correct P-value. An improved method is developed for testing linearity in a set of dominance relationships containing unknown relationships. Furthermore, it is argued that, if one admits the possibility of tied dominance relationships, which should indeed be assigned the value 1/2, Landau's linearity index is to be preferred to Kendall's index. A randomization test is developed for assessing the significance of linearity or non-linearity in a set of dominance relationships containing unknown or tied relationships. The test statistic employed in this testing procedure is based on Landau's linearity index, but takes the unknown and tied relationships into account.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4284
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