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	Author	Westergaard, G.C.; Liv, C.; Chavanne, T.J.; Suomi, S.J.
	Title	Token-mediated tool-use by a tufted capuchin monkey (Cebus apella)			Type	Journal Article
	Year	1998	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	1	Issue	2	Pages	101-106
	Keywords
	Abstract	This research examined token-mediated tool-use in a tufted capuchin monkey (Cebus apella). We conducted five experiments. In experiment 1 we examined the use of plastic color-coded chips to request food, and in experiments 2-5 we examined the use of color-coded chips to request tools. Our subject learned to use chips to request tools following the same general pattern seen in great apes performing analogous tasks, that is, initial discrimination followed by an understanding of the relationship among tokens, tools, and their functions. Our findings are consistent with the view that parallel representational processes underlie the tool-related behavior of capuchins and great apes.
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3152
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	Author	Rasa, O.A.E.
	Title	To stay or to leave? Decision rules for partner species relocation in two symbiotic pairs of desert beetles			Type	Journal Article
	Year	1998	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	1	Issue	1	Pages	47-54
	Keywords
	Abstract	Four nocturnal Kalahari desert tenebrionid beetles live in closely associated species pairs. The larger member of each pair, Parastizopus and Gonopus, are the primary burrowers while their smaller associates, Eremostibes and Herpiscius, inhabit the burrows with them and feed on detritus the larger beetles carry in. During summer drought, the two large species have different emergence times, surface activity patterns (vagilities) and different probabilities that burrows will be reoccupied before sunrise or remain empty for longer periods. Because their partners leave the burrows, the smaller species must make a decision either to stay in the expectation of a burrow being reinhabited, or leave and locate a new partner. The vagility and burrow fidelity of the associating species were studied using marked individuals in free-living populations. Field inclusion/exclusion experiments to test what influences the decision process showed that neither continual partner presence nor food induced the smaller beetles to remain. Different percentages, depending on species, left overnight. For both associates, these proportions corresponded exactly to the probability that the burrow would not be inhabited by their partner species the next day. Neither species predicted the probability of burrow reoccupation after a short vacancy and adopted a “waiting” strategy.
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3166
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	Author	Bürger, U.
	Title	The Way to perfect Horsemanship			Type	Book Whole
	Year	1998	Publication		Abbreviated Journal
	Volume		Issue		Pages	254
	Keywords
	Abstract	The Way to Perfect Horsemanship is an outstanding work in the vast literature devoted to horsemanship. It provides, for the first time, a clear insight into the psychological makeup of the horse, its muscular system, the mechanics of its movement, and the aids to human-to-horse communication. Udo Burger presents his philosophy of riding in a scientific manner, asserting that no one can no more learn to ride without a knowledge of horse physiology and psychology than one can learn the art of medecine without a background in health and disease. He clearly explains what one should feel and do on horseback--ultimately, as if one is part of the horse, completely united with it in all of its movements. Anyone with a genuine empathy for horses--wether teacher, trainer, competitor, or occasional rider--will benefit enormously from reading this classic work on horsemanship. The late Udo Burger was an accomplished horseman and one of Germany's most esteemed equine veterinarians.
	Address
	Corporate Author				Thesis
	Publisher	Trafalgar Square Publishing	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN	978-1570761294	Medium
	Area		Expedition		Conference
	Notes	1st English cased ed edition (October 1, 1998)			Approved	no
	Call Number	Reiten Lesen Denken @ eberhardhuebener @			Serial	1594
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	Author	Dunbar, Robin I. M.
	Title	The social brain hypothesis			Type	Journal Article
	Year	1998	Publication	Evolutionary Anthropology: Issues, News, and Reviews	Abbreviated Journal	Evol. Anthropol.
	Volume	6	Issue	5	Pages	178-190
	Keywords	brain size – neocortex – social brain hypothesis – social skills – mind reading – primates
	Abstract	Conventional wisdom over the past 160 years in the cognitive and neurosciences has assumed that brains evolved to process factual information about the world. Most attention has therefore been focused on such features as pattern recognition, color vision, and speech perception. By extension, it was assumed that brains evolved to deal with essentially ecological problem-solving tasks. © 1998 Wiley-Liss, Inc.
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	Notes	Robin Dunbar is Professor of Evolutionary Psychology and Behavioural Ecology at the University of Liverpool, England. His research primarily focuses on the behavioral ecology of ungulates and human and nonhuman primates, and on the cognitive mechanisms and brain components that underpin the decisions that animals make. He runs a large research group, with graduate students working on many different species on four continents.			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4371
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	Author	Zohary, D.; Tchernov, E.; Horwitz, L.K.
	Title	The role of unconscious selection in the domestication of sheep and goats			Type	Journal Article
	Year	1998	Publication	J Zool	Abbreviated Journal
	Volume	245	Issue		Pages
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	Abstract
	Address
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @ Zohary1998			Serial	6240
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	Author	Fiorito, G.; Biederman, G.B.; Davey, V.A.; Gherardi, F.
	Title	The role of stimulus preexposure in problem solving by Octopus vulgaris			Type	Journal Article
	Year	1998	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	1	Issue	2	Pages	107-112
	Keywords
	Abstract	Octopus vulgaris is able to open transparent glass jars closed with plastic plugs and containing live crabs. The decrease in performance times for removing the plug and seizing the prey with increasing experience of the task has been taken to indicate learning. However, octopuses' attack behaviors are typically slow and variable in novel environmental situations. In this study the role of preexposure to selected features of the problem-solving context was investigated. Although octopuses failed to benefit from greater familiarity with the training context or with selected elements of the task of solving the jar problem, the methodological strategies used are instructive in potentially clarifying the role of complex problem-solving behaviors in this species including stimulus preexposure and social learning.
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3198
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	Author	Bouman, I.
	Title	The reintroduction of Przewalski horses in the Hustain Nuruu Mountain Forest Steppe Reserve in Mongolia			Type	Journal Article
	Year	1998	Publication	Mededelingen: Netherlands Commission for International Nature Protection	Abbreviated Journal
	Volume	32	Issue		Pages
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	Abstract
	Address
	Corporate Author				Thesis
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2241
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	Author	Cooper, J.J.; Mason, G.J.
	Title	The identification of abnormal behaviour and behavioural problems in stabled horses and their relationship to horse welfare: a comparative review			Type	Journal Article
	Year	1998	Publication	Equine Veterinary Journal. Supplement	Abbreviated Journal	Equine Vet J Suppl
	Volume		Issue	27	Pages	5-9
	Keywords	Animal Welfare; Animals; Behavior, Animal; Horses/psychology; Housing, Animal/standards; *Stereotyped Behavior
	Abstract	Many behaviours in domestic animals, such as the 'stable vices' of horses, are treated because they are considered undesirable for economic or cultural reasons, and not because the activity affects the horse's quality of life. The impact of a behaviour on the human reporter is not a function of its impact on the animal performer, and an understanding of the causes and effects of the particular activity is necessary to assess the costs and benefits of treatment. Where the behaviour is a sign of poor welfare, such as an inadequate environment, treatment can best be achieved by removing these underlying causal factors. Pharmacological or physical prevention of a behaviour can be justified only if the behaviour causes harm to the performer or to others. In these cases, prevention of the behaviour without addressing its causes is no cure and may result in its perseverance in a modified form or the disruption of the animal's ability to adapt to its environment. Where the behavioural 'problem' causes no harm and is not related to poor housing, then the education of the reporter, rather than treatment of the performer, may be the best solution.
	Address	Department of Zoology, University of Oxford, UK
	Corporate Author				Thesis
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	Language	English	Summary Language		Original Title
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	Notes	PMID:10484995			Approved	no
	Call Number	refbase @ user @			Serial	1933
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	Author	Honeyman, M.S.; Miller, G.S.
	Title	The effect of teaching approaches on achievement and satisfaction of field-dependent and field-independent learners in animal science			Type	Journal Article
	Year	1998	Publication	Journal of Animal Science	Abbreviated Journal	J. Anim Sci.
	Volume	76	Issue	6	Pages	1710-1715
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	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2941
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	Author	Alexander, S.L.; Irvine, C.H.
	Title	The effect of social stress on adrenal axis activity in horses: the importance of monitoring corticosteroid-binding globulin capacity			Type	Journal Article
	Year	1998	Publication	Journal of Endocrinology	Abbreviated Journal
	Volume	157	Issue	3	Pages	425-432
	Keywords
	Abstract	Plasma cortisol is largely bound to corticosteroid-binding globulin (CBG), which regulates its bioavailability by restricting exit from capillaries. Levels of CBG may be altered by several factors including stress and this can influence the amount of cortisol reaching cells. This study investigated the effect of social instability on plasma concentrations of CBG, total and free (not protein bound) cortisol in horses. Horses new to our research herd ('newcomers') were confined in a small yard with four dominant resident horses for 3-4 h daily for 3-4 (n = 5) or 9-14 (n = 3) days. Jugular blood was collected in the mornings from newcomers before the period of stress began ('pre-stress'), and then before each day's stress. Residents were bled before stress on the first and thirteenth day. Residents always behaved aggressively towards newcomers. By the end of the stress period, all newcomers were subordinate to residents. In newcomers (n = 8) after 3-4 days of social stress, CBG binding capacity had fallen (P = 0.0025), while free cortisol concentrations had risen (P = 0.0016) from pre-stress values. In contrast, total cortisol did not change. In residents, CBG had decreased slightly but significantly (P = 0.0162) after 12 days of stress. Residents and newcomers did not differ in pre-stress CBG binding capacity, total or free cortisol concentrations. However, by the second week of stress, CBG binding capacity was lower (P = 0.015) and free cortisol higher (P = 0.030) in newcomers (n = 3) than in residents. Total cortisol did not differ between the groups. In conclusion social stress clearly affected the adrenal axis of subordinate newcomer horses, lowering the binding capacity of CBG and raising free cortisol concentrations. However, no effect of stress could be detected when only total cortisol was measured. Therefore, to assess adrenal axis status accurately in horses, it is essential to monitor the binding capacity of CBG and free cortisol concentrations in addition to total cortisol levels.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
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	Notes	10.1677/joe.0.1570425			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	5844
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