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	Author	Keiper Rr,
	Title	Population dynamics of feral ponies.			Type	Conference Volume
	Year	1979	Publication	Symposium on the Ecology and Behavior of wild and feral Equids	Abbreviated Journal
	Volume		Issue		Pages	175-184
	Keywords
	Abstract
	Address
	Corporate Author				Thesis
	Publisher	Symposium on the Ecology and Behavior of wild and feral Equids	Place of Publication	Laramie	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	no
	Call Number				Serial	1252
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	Author	Klingel H,
	Title	A Comparison of the Social Organization of the Equids. in Denniston RH (ed)			Type	Conference Volume
	Year	1980	Publication	Symposium on the Ecology and Behavior of Wild and Feral Equids, Laramie 1979	Abbreviated Journal
	Volume		Issue		Pages	23-30
	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	no
	Call Number				Serial	1315
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	Author	Ruffner Ga, C.S.
	Title	Age structure, condition, and reproduction of two burro (Equus asinus) populations from Grand Canyon National Park, Arizona			Type	Conference Volume
	Year	1979	Publication	Symposium on the Ecology and Behavior of wild and feral Equids, Laramie	Abbreviated Journal
	Volume		Issue		Pages	235
	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	no
	Call Number				Serial	1534
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	Author	Schilder, M.B. H.
	Title	Interventions in a herd of semi – captive Plains zebras			Type	Journal Article
	Year	1990	Publication	Behavior	Abbreviated Journal	Behaviour
	Volume	112	Issue	1-2	Pages	53-83
	Keywords
	Abstract	n a herd of semi-captive plains zebras interventions, which occurred within the harems, were investigated in order to answer the question why zebras interfered. These interventions are of interest because they regulate the contacts between companions and because, as corrective and preventive measures, they reveal the normative principles underlying the behaviours by which animals structure their social environment. An attempt was made to deduce 1) the internal norms of the interferer; 2) his short term aims; 3) his tactis and 4) his perception of the social environment. The analysis revealed that in the case of an affiliative interaction foals, yearlings and adult mares started to interfere if a friend had an affiliative contact with another zebra. In view of the interferer's behaviours it was concluded that their aim was to break off the ongoing interaction and that zebras tended to protect friendship bonds. Foals and yearlings further interfered if their mother was being threatened, attacked or sexually approached by a stallion. In view of the interferer's behaviours its aim was to prevent iminent interactions or to break off ongoing interactions. This suggests that these interventions were of a protective nature. The interferer's behaviours in both contexts ware very much alike. Mares tended to interfere if their foal/yearling or adult daughter was threathened or aggressed or if a mare friend was being sexually approached by a stallion. This type of intervention was of a protective nature. Stallions in a multi male harem showed a high tendency to interfere in courtship interactions. From the resemblance between interventions in courtship and in aggressive interactions it is concluded that, at leat in a number of cases, the individuals have perceived courtship behaviour by the stallion as a threat towards the mare involved.
	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	1565
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	Author	Waring Gh,
	Title	Behavioral adaptation as a factor in management of feral equids			Type	Conference Volume
	Year	1979	Publication	Symposium on the Ecology and Behavior of wild and feral Equids, Laramie	Abbreviated Journal
	Volume		Issue		Pages	85-92
	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	no
	Call Number				Serial	1697
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	Author	Wolfe Ml,
	Title	Feral horse demography: A preliminary report (Abstract)			Type	Conference Volume
	Year	1979	Publication	Symposium on the Ecology and Behavior of wild and feral Equids, Laramie	Abbreviated Journal
	Volume		Issue		Pages	173-174
	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	no
	Call Number				Serial	1715
Permanent link to this record



	Author	Wolfe Ml,
	Title	Population ecology of the kulan			Type	Conference Volume
	Year	1979	Publication	Symposium on the Ecology and Behavior of wild and feral Equids, Laramie	Abbreviated Journal
	Volume		Issue		Pages	205-218
	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	no
	Call Number				Serial	1716
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	Author	Woodward Sl,
	Title	Population dynamics of a herd of feral burros (Abstract)			Type	Conference Volume
	Year	1979	Publication	Symposium on the Ecology and Behavior of wild and feral Equids, Laramie	Abbreviated Journal
	Volume		Issue		Pages	219-220
	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	no
	Call Number				Serial	1719
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	Author	Zervanos Sm, K.R.
	Title	Seasonal home ranges and activity patterns of feral assateague island ponies			Type	Conference Volume
	Year	1979	Publication	Symposium on the Ecology and Behavior of wild and feral Equids, Laramie	Abbreviated Journal
	Volume		Issue		Pages	3-14
	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	no
	Call Number				Serial	1753
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	Author	Dougherty, D.M.; Lewis, P.
	Title	Stimulus generalization, discrimination learning, and peak shift in horses			Type	Journal Article
	Year	1991	Publication	Journal of the experimental analysis of behavior	Abbreviated Journal	J Exp Anal Behav
	Volume	56	Issue	1	Pages	97-104
	Keywords	Animals; Appetitive Behavior; Attention; Conditioning, Operant; Discrimination Learning; Female; Generalization, Stimulus; Horses/psychology; Male; Pattern Recognition, Visual; Size Perception
	Abstract	Using horses, we investigated three aspects of the stimulus control of lever-pressing behavior: stimulus generalization, discrimination learning, and peak shift. Nine solid black circles, ranging in size from 0.5 in. to 4.5 in. (1.3 cm to 11.4 cm) served as stimuli. Each horse was shaped, using successive approximations, to press a rat lever with its lip in the presence of a positive stimulus, the 2.5-in. (6.4-cm) circle. Shaping proceeded quickly and was comparable to that of other laboratory organisms. After responding was maintained on a variable-interval 30-s schedule, stimulus generalization gradients were collected from 2 horses prior to discrimination training. During discrimination training, grain followed lever presses in the presence of a positive stimulus (a 2.5-in circle) and never followed lever presses in the presence of a negative stimulus (a 1.5-in. [3.8-cm] circle). Three horses met a criterion of zero responses to the negative stimulus in fewer than 15 sessions. Horses given stimulus generalization testing prior to discrimination training produced symmetrical gradients; horses given discrimination training prior to generalization testing produced asymmetrical gradients. The peak of these gradients shifted away from the negative stimulus. These results are consistent with discrimination, stimulus generalization, and peak-shift phenomena observed in other organisms.
	Address	Department of Psychology, Ohio University, Athens 45701
	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	0022-5002	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:1940765			Approved	no
	Call Number				Serial	1764
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