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	Author	Argue, C.K.; Clayton, H.M.
	Title	A preliminary study of transitions between the walk and trot in dressage horses			Type	Journal Article
	Year	1993	Publication	Acta Anatomica	Abbreviated Journal	Acta Anat (Basel)
	Volume	146	Issue	2-3	Pages	179-182
	Keywords	Animals; Forelimb/physiology; Gait/physiology; Hindlimb/physiology; Horses/physiology; Locomotion/physiology; *Physical Conditioning, Animal
	Abstract	The object of this study was to determine the limb support sequence during the transitions from walk to trot and from trot to walk in dressage horses under saddle and to test the null hypothesis that the limb support sequence during the transitions is not related to the level of training. Sixteen dressage horses training at novice to FEI Grand Prix level were videotaped performing an average of 9 transitions each from walk to trot and from trot to walk. The 30-Hz videotapes were viewed in slow motion, and based on the limb support sequence the transitions were categorized into two types. In type 1 transitions there were no intermediate steps between the walk and trot sequences. Type 2 transitions were characterized by intermediate steps, including a single support phase. The Kendall rank-order correlation coefficient showed that a higher level of training was positively associated with an increased percentage of type 1 transitions for both walk-to-trot transitions (p < or = 0.05) and trot-to-walk transitions (p < or = 0.01). No significant preference for initiating or completing the trot on the left or right diagonal was found using the binomial test for individual horses and the Wilcoxon signed-ranks test for the group.
	Address	Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, 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	0001-5180	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:8470463			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3752
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	Author	Marchal, P.; Anderson, J.R.
	Title	Mirror-image responses in capuchin monkeys (Cebus capucinus): social responses and use of reflected environmental information			Type	Journal Article
	Year	1993	Publication	Folia Primatologica; International Journal of Primatology	Abbreviated Journal	Folia Primatol (Basel)
	Volume	61	Issue	3	Pages	165-173
	Keywords	Animals; Behavior, Animal; Cebus/psychology; Cognition; Female; Male; Self Concept; Sex Factors; Social Behavior
	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	0015-5713	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:8206423			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4180
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	Author	Rutberg, A.T.; Keiper, R.R.
	Title	Proximate causes of natal dispersal in feral ponies: some sex differences			Type	Journal Article
	Year	1993	Publication	Animal Behaviour.	Abbreviated Journal	Anim. Behav.
	Volume	46	Issue	5	Pages	969-975
	Keywords
	Abstract	Abstract. Fifteen years of data on natal dispersal age and the context of dispersal for the feral ponies of Assateague Island, Maryland are presented. Ninety-seven per cent of males and 81% of females dispersed from their natal groups by 5 years of age. For animals that left their natal group, average age of dispersal was 20[middle dot]8 months for males and 24[middle dot]6 months for females. Male dispersal age was strongly and significantly correlated with number of peers in the natal group, and males dispersing with peers were significantly older than males dispersing without peers, suggesting that males delayed dispersal when peers were available for interaction. Female dispersal age was not influenced by number of peers, but was correlated with age of first reproduction. Factors not influencing dispersal age in either sex were presence of a younger sibling, maternal band transfers, and maternal age and dominance rank. The relatively high frequency of females failing to disperse from their natal groups is puzzling in light of data showing diminished fecundity in non-dispersing pony mares.
	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	518
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	Author	SYLVAIN GAGNON,FRANCOISY. DORE
	Title	Search behavior of dogs (Canis familiaris) in invisible displacement problems			Type	Journal Article
	Year	1993	Publication	Animal Learning & Behavior	Abbreviated Journal	Anim Learn. & Behav.
	Volume	21	Issue	3	Pages	246-254
	Keywords
	Abstract	Gagnon and Dor (1992) showed that domestic dogs are able to solve a Piagetian object permanence task called the invisible displacement problem. A toy is hidden in a container which is moved behind a screen where the toy is removed and left. Dogs make more errors in these problems than they do in visible displacement tests, in which the object is hidden directly behind the target screen. In Experiment 1, we examinedcomponents ofthe standard procedure of invisible displacements that may make encoding or retention of the hiding location more difficult than it is in visible displacements. In Experiment 2, we compared dogs performances in visible and invisible displacement problems when delays of 0, 10, and 20 sec were introduced between the objects final disappearance and the subjects release. The results revealed that dogs poorer performance in invisible displacement tests is related to the complex sequence of events that have to be encoded or remembered as well as to a difficulty in representing the position change that is signaled, but not directly perceived.
	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	538
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	Author	Chalmeau, R.; Gallo, A.
	Title	Social constraints determine what is learned in the chimpanzee			Type	Journal Article
	Year	1993	Publication	Behavioural Processes	Abbreviated Journal	Behav. Process.
	Volume	28	Issue	3	Pages	173-179
	Keywords	Operant conditioning; Social influence; Individual strategy; Chimpanzee
	Abstract	A group of six chimpanzees was placed in a social learning situation, without training. The learning task was an operant conditioning situation; that is, a subject had to pull two handles simultaneously to cause a piece of fruit to fall into the cage. Only three individuals acquired the operant behaviour. For the operant individuals, social influences on the expression of the learning task were then examined; the dominant chimpanzee during feeding had an inhibiting effect when close to the operant subjects. Depending on the subject, social factors may influence not only the specific expression of what is learnt, but also the nature of what is learnt. Chimpanzees appear to experience situations differently: they develop an individual problem-solving strategy according to their social relationships even if the experimental procedure is the same for all.
	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	569
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	Author	RÖHRS, M.; EBINGER, P.
	Title	Progressive und regressive Hirngrößenveränderungen bei Equiden			Type	Journal Article
	Year	1993	Publication		Abbreviated Journal	Z zool Syst Evolut forsch
	Volume	31	Issue		Pages	233-239
	Keywords
	Abstract
	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	from Professor Hans Klingels Equine Reference List			Approved	yes
	Call Number				Serial	1513
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	Author	Schuhmann K,
	Title	Untersuchung zur Sozialstruktur des persischen Wildesels			Type	Manuscript
	Year	1993	Publication		Abbreviated Journal
	Volume		Issue		Pages
	Keywords
	Abstract
	Address
	Corporate Author				Thesis	Doctoral thesis
	Publisher		Place of Publication	Freiburg	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	from Professor Hans Klingels Equine Reference List			Approved	yes
	Call Number				Serial	1578
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	Author	Shah Nv,
	Title	Ecology of wild ass in Little Rann of Kutch			Type	Manuscript
	Year	1993	Publication		Abbreviated Journal
	Volume		Issue		Pages
	Keywords
	Abstract
	Address
	Corporate Author				Thesis	Doctoral thesis
	Publisher		Place of Publication	Baroda University, India.	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	from Professor Hans Klingels Equine Reference List			Approved	yes
	Call Number				Serial	1587
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	Author	Goldschmidt, T.; Bakker, T.C.M.; Feuth-de Bruijn, E.
	Title	Selective copying in mate choice of female sticklebacks			Type	Journal Article
	Year	1993	Publication	Animal Behaviour.	Abbreviated Journal	Anim. Behav.
	Volume	45	Issue	3	Pages	541-547
	Keywords
	Abstract	There is evidence that female three-spined sticklebacks, Gasterosteus aculeatus L., prefer to mate with males whose nests contain eggs rather than with males with empty nests. While there is consensus on this point, a dispute exists about whether this preference should be attributed to a direct effect of the eggs on the female's entering the nest or, alternatively, to a positive impact of the eggs on the courtship behaviour and breeding coloration of the male. In the field experiment reported here females strongly preferred nests with eggs over empty nests. Additionally, females were less likely to enter risky nests with eggs: nests that contained fewer eggs than one average clutch or more eggs than the average nest content of parental males in this population. However, in the field possible differences in male attractiveness were not controlled for. In supplementary laboratory experiments the effect on female choice of possible changes in male attractiveness (intensified courtship and coloration) as a result of the presence of eggs in the nest was tested. Other differences in male attractiveness as a result of differences in male quality (body size, breeding coloration before the test, territory quality and size) were controlled for. When females had no access to the nests, they showed no preference for males with eggs in their nests in simultaneous choice tests. These results, together with the earlier published data, make it likely that the preference of females for nests with eggs is partly a direct consequence of the eggs themselves. So female sticklebacks are influenced by the mate choice behaviour of other females, but remain selective as to the actual nest content.
	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				Serial	1818
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	Author	Feh, C.; de Mazières, J.
	Title	Grooming at a preferred site reduces heart rate in horses			Type	Journal Article
	Year	1993	Publication	Animal Behaviour.	Abbreviated Journal	Anim. Behav.
	Volume	46	Issue	6	Pages	1191-1194
	Keywords
	Abstract	Abstract. It is commonly suggested that the principal function of allogrooming is to reduce social tension between group members, but direct evidence of the physiological consequences of grooming at particular sites is lacking. By filming allogrooming sequences in a herd of Camargue horses, Equus caballus , their preferred grooming site, which lies on the lower neck, was identified. Experimental imitation of grooming at this site reduced the heart rate of the recipient while grooming on a non-preferred area did not, in both adults and foals. This preferred site lies close to a major ganglion of the autonomic nervous system.
	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				Serial	2020
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