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	Author	Giraldeau, L.-A.; Lefebvre, L.
	Title	Scrounging prevents cultural transmission of food-finding behaviour in pigeons			Type	Journal Article
	Year	1987	Publication	Animal Behaviour.	Abbreviated Journal	Anim. Behav.
	Volume	35	Issue	2	Pages	387-394
	Keywords
	Abstract	Living in groups should promote the cultural transmission of a novel behaviour because opportunities for observing knowledgeable individuals are likely to be more numerous in this condition. However, in this study pigeons who shared the food discoveries of others (scroungers) did not learn the food-finding technique used by the discoverers (producers). Individually-caged pigeons prevented from scrounging easily learned the technique from a conspecific tutor. When caged pigeons obtained food from the tutor's performance, most naïve observers failed to learn. In a flock, scroungers selectively followed producers. In individual cages, scrounging during the tutor's demonstration was equivalent to getting no demonstration at all. This effect of scrounging did not interfere with subsequent acquisition of the food-finding behaviour when scrounging was no longer possible.
	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	0003-3472	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	5265
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	Author	Berger J,
	Title	Reproductive fates of dispersers in a harem-dwelling ungulate: the wild horse			Type	Journal Article
	Year	1987	Publication	Mammalian Dispersal Patterns: The Effects of Social Structure on Population Genetics	Abbreviated Journal	Mammalian dispersal Patterns
	Volume		Issue		Pages	41-54
	Keywords
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor	Chepko-Sade, B.D. ; Halpin, Z.T.
	Language		Summary Language		Original Title	Mammalian Dispersal Patterns: The Effects of Social Structure on Population Genetics
	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	no
	Call Number				Serial	940
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	Author	Walters, J.R.; Seyfarth, R.M.
	Title	Primate Societies			Type	Miscellaneous
	Year	1987	Publication		Abbreviated Journal
	Volume		Issue		Pages
	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				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4858
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	Author	Leslie AM
	Title	Pretense and representation in infancy: the origins of theory of mind			Type	Journal Article
	Year	1987	Publication	Psychol. Rev.	Abbreviated Journal
	Volume	94	Issue		Pages	412
	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				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3014
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	Author	Crowell-Davis, S.L.; Houpt, K.A.; Kane, L.
	Title	Play development in Welsh pony (Equus caballus) foals			Type	Journal Article
	Year	1987	Publication	Applied Animal Behaviour Science	Abbreviated Journal	Appl. Anim. Behav. Sci.
	Volume	18	Issue	2	Pages	119-131
	Keywords
	Abstract	The structure of the play of colts and fillies living on pasture was studied from birth (n = 15) for up to 24 weeks. Foal play was categorized as running and bucking alone, running and bucking in a group, interactive (contact or combat) play, play with an object, and play at an adult. The rate of play decreased with increasing age and ambient temperature. Fillies and colts played with equal frequency, but engaged in some different types of play at different rates. There was no difference between colts and fillies in the proportion of play bouts of running and bucking in a group or playing with an object. Fillies engaged in running and bucking alone more than colts. Colts engaged in interactive play and play at an adult more than fillies. While there was no significant difference between colts and fillies in the duration of either type of running and bucking play, the interactive play bouts of colts were significantly longer than those of fillies. Both mares and stallions were tolerant of foal play which involved use of their body as a play object, including mounting play. Both fillies and colts engaged in mounting play. Foals used various natural objects found in the pasture for repeated bouts of play with inanimate objects, a behaviour which may explain, from a developmental perspective, the occasional use of “tools” in adult equids. The sex differences in type of play were consistent with the social structure of unmanaged adults in which males must compete with each other in order to associate with females.
	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	2274
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	Author	Lane, J.G.; Mair, T.S.
	Title	Observations on headshaking in the horse			Type	Journal Article
	Year	1987	Publication	Equine Veterinary Journal	Abbreviated Journal	Equine Vet J
	Volume	19	Issue	4	Pages	331-336
	Keywords	Animals; Behavior, Animal; Female; Head; Horses; Male; Movement
	Abstract	The clinical records of 100 cases of headshaking in horses were reviewed. Possible causes of the abnormal behaviour were identified in 11 animals; these included ear mite infestation, otitis interna, cranial nerve dysfunction, cervical injury, ocular disease, guttural pouch mycosis, dental periapical osteitis and suspected vasomotor rhinitis. However, in only two of these could it be shown that correction of the abnormality led to elimination of the headshaking. The additional clinical signs exhibited by the other idiopathic cases of headshaking included evidence of nasal irritation, sneezing and snorting, nasal discharge, coughing and excessive lacrimation. Many of these horses also showed a marked seasonal pattern with respect to the onset of the disease and the recurrence of signs in subsequent years. The clinical presentation of idiopathic headshakers and the seasonal incidence of the signs closely resemble allergic rhinitis in man.
	Address
	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:3622462			Approved	no
	Call Number	refbase @ user @			Serial	1953
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	Author	Tomasello, M.; Davis-Dasilva, M.; Camak, L.; Bard, K.
	Title	Observational learning of tool-use by young chimpanzees			Type	Journal Article
	Year	1987	Publication		Abbreviated Journal	Human Evolution
	Volume	2	Issue	2	Pages	175-183
	Keywords	Chimpanzees; Observational Learning; Tool-Use
	Abstract	In the current study two groups of young chimpanzees (4–6 and 8–9 years old) were given a T-bar and a food item that could only be reached by using the T-bar. Experimental subjects were given the opportunity to observe an adult using the stick as a tool to obtain the food; control subjects were exposed to the adult but were given no demonstration. Subjects in the older group did not learn to use the tool. Subjects in the younger group who were exposed to the demonstrator learned to use the stick as a tool much more readily than those who were not. None of the subjects demonstrated an ability to imitatively copy the demonstrator's precise behavioral strategies. More than simple stimulus enhancement was involved, however, since both groups manipulated the T-bar, but only experimental subjects used it in its function as a tool. Our findings complement naturalistic observations in suggesting that chimpanzee tool-use is in some sense «culturally transmitted» — though perhaps not in the same sense as social-conventional behaviors for which precise copying of conspecifics is crucial.
	Address
	Corporate Author				Thesis
	Publisher	Kluwer Academic Publishers	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0393-9375	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	5915
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	Author	Povinelli DJ
	Title	Monkeys, apes, mirrors and minds: the evolution of self-awareness in primates			Type	Journal Article
	Year	1987	Publication	J. Hum. Evol.	Abbreviated Journal
	Volume	2	Issue		Pages	493
	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				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3025
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	Author	Scheunert, A. Trautmann, A.
	Title	Lehrbuch der Veterinär-Physiologie.			Type	Book Whole
	Year	1987	Publication		Abbreviated Journal
	Volume		Issue		Pages
	Keywords
	Abstract
	Address
	Corporate Author				Thesis
	Publisher	Parey	Place of Publication	Berlin	Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN	978-3489662167	Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4441
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	Author	Deuel, N.R.; Lawrence, L.M.
	Title	Laterality in the gallop gait of horses			Type	Journal Article
	Year	1987	Publication	Journal of biomechanics	Abbreviated Journal	J Biomech
	Volume	20	Issue	6	Pages	645-649
	Keywords	Animals; Functional Laterality; Gait; Horses/*physiology; Kinesis
	Abstract	Bilateral asymmetry in gallop stride limb contact patterns of four Quarter Horse fillies was documented by high-speed cinematography. Horses were filmed with rider by two cameras simultaneously while galloping along a straightaway. Even though signaled for each gallop lead an equivalent number of times, horses frequently switched leads, selecting the left lead nearly twice as often as the right. Velocities and stride lengths were greater for the left lead than the right, but stride frequencies did not differ between leads. Velocity effects were partitioned out in limb contact data analysis to enable the determination of persistent gallop stride asymmetries. The contact duration for the trailing (right) fore limb on the left lead exceeded the contact duration for the trailing (left) fore limb on the right lead. Selecting the right fore limb as the trailing fore limb may have allowed horses to use it to withstand the greater stresses and caused them to preferentially gallop with the left fore limb leading. Laterality may have an important influence on equine gallop motion patterns and thereby influence athletic performance.
	Address
	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	0021-9290	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:3611140			Approved	no
	Call Number	refbase @ user @			Serial	528
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