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	Author	Creighton, E.
	Title	Equine learning behaviour: Limits of ability and ability limits of trainers			Type	Journal Article
	Year	2007	Publication	Behavioural Processes	Abbreviated Journal	Behav. Process.
	Volume	76	Issue	1	Pages	43-44
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	Notes				Approved	no
	Call Number	refbase @ user @			Serial	633
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	Author	Heitor, F.; do Mar Oom, M.; Vicente, L.
	Title	Social relationships in a herd of Sorraia horses Part I. Correlates of social dominance and contexts of aggression			Type	Journal Article
	Year	2006	Publication	Behavioural Processes	Abbreviated Journal	Behav. Process.
	Volume	73	Issue	2	Pages	170-177
	Keywords	Age Factors; Aggression; Animals; Female; Hierarchy, Social; Horses/psychology; Male; Sex Factors; Social Dominance; *Social Environment; Statistics, Nonparametric
	Abstract	Factors related to dominance rank and the functions of aggression were studied in a herd of Sorraia horses, Equus caballus, under extensive management. Subjects were 10 adult mares 5-18 years old and a stallion introduced into the group for breeding. Dominance relationships among mares were clear, irrespective of rank difference, and remained stable after introduction of the stallion. The dominance hierarchy was significantly linear and rank was positively correlated with age and total aggressiveness. Higher-ranking mares received lower frequency and intensity of agonistic interactions. Nevertheless, higher-ranking dominants were not more likely to elicit submission from their subordinates than lower-ranking dominants. Neither close-ranking mares nor mares with less clear dominance relationships were more aggressive towards each other. Agonistic interactions seemed to be used more importantly in regulation of space than to obtain access to food or to reassert dominance relationships. Contexts of aggression were related to mare rank. The results suggest that dominance relationships based on age as a conventional criterion were established to reduce aggressiveness in a herd where the costs of aggression are likely to outweigh the benefits.
	Address	Centro de Biologia Ambiental, Faculdade de Ciencias da Universidade de Lisboa, Campo Grande, Edificio C2, 1749-016 Lisboa, Portugal
	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	0376-6357	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16815645			Approved	no
	Call Number	refbase @ user @			Serial	292
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	Author	Bayly, K.L.; Evans, C.S.; Taylor, A.
	Title	Measuring social structure: A comparison of eight dominance indices			Type	Journal Article
	Year	2006	Publication	Behavioural Processes	Abbreviated Journal	Behav. Process.
	Volume	73	Issue	1	Pages	1-12
	Keywords	Social status; Methods; Behaviour in groups
	Abstract	Measurement of social status is an important component of many behavioural studies. A variety of techniques have been developed and adopted, but while there have been some analyses of index properties using simulated data, the rationale for selecting a method remains poorly documented. As a first step in exploring the implications of index choice, we compared the characteristics of eight popular indices by applying each to the same data set from interactions between male fowl Gallus gallus, the system in which social hierarchies were first described. Data from eight social groups, observed over four successive breeding seasons, were analysed to determine whether different indices produced consistent dominance scores. These scores were then used in tests of the relation between social status and crowing to explore whether index choice affected the results obtained. We also examined the pattern of dominance index use over the last decade to infer whether this has likely been influenced by tradition, or by taxa of study animal. Overall agreement among methods was good when groups of birds had perfectly linear hierarchies, but results diverged when social structure was more complex, with either intransitive triads or reversals. While all regression analyses revealed a positive relationship between dominance and vocal behaviour, there were substantial differences in the amount of variance accounted for, even though the original data were identical in every case. Index selection can hence perturb estimates of the importance of dominance, relative to other factors. We also found that several methods have been adopted only by particular research teams, while the use of others has been taxonomically constrained, patterns implying that indices have not always been chosen solely upon their merits. Taken together, our results read as a cautionary tale. We suggest that selection of a dominance index requires careful consideration both of algorithm properties and of the factors affecting social status in the system of interest.
	Address
	Corporate Author				Thesis
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4289
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	Author	Beer C.G.
	Title	Trial and error in the evolution of cognition			Type	Journal Article
	Year	1995	Publication	Behavioural Processes	Abbreviated Journal	Behav. Process.
	Volume	35	Issue		Pages	215-224
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	Notes				Approved	no
	Call Number	refbase @ user @			Serial	3455
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	Author	Gärdenfors P.
	Title	Cued and detached representations in animal cognition			Type	Journal Article
	Year	1995	Publication	Behavioural Processes	Abbreviated Journal	Behav. Process.
	Volume	35	Issue		Pages	263-273
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
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	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	refbase @ user @			Serial	3454
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	Author	Daniels, T.J.; Bekoff, M.
	Title	Feralization: The making of wild domestic animals			Type	Journal Article
	Year	1989	Publication	Behavioural Processes	Abbreviated Journal	Behav. Process.
	Volume	19	Issue	1-3	Pages	79-94
	Keywords	feralization; domestication; feral dogs
	Abstract	The widely accepted viewpoint that feralization is the reverse of domestication requires that the feralization process be restricted to populations of animals and, therefore, cannot occur in individuals. An alternative, ontogenetic approach is presented in which feralization is defined as the process by which individual domestic animals either become desocialized from humans, or never become socialized, and thus behave as untamed, non-domestic animals. Feralization will vary among species and, intraspecifically, will depend upon an individual's age and history of socialization to humans. Because feralization is not equated with morphological change resulting from evolutionary processes, species formation is not an accurate indicator of feral condition.
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	Notes	Cited By (since 1996): 5; Export Date: 24 October 2008			Approved	no
	Call Number	Admin @ knut @			Serial	4580
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	Author	Hirata, S.
	Title	A note on the responses of chimpanzees (Pan troglodytes) to live self-images on television monitors			Type	Journal Article
	Year	2007	Publication	Behavioural Processes	Abbreviated Journal	Behav. Process.
	Volume	75	Issue	1	Pages	85-90
	Keywords	Animals; Discrimination Learning; Female; Male; Pan troglodytes/psychology; *Self Concept; Self Psychology; Social Behavior; Television
	Abstract	The majority of studies on self-recognition in animals have been conducted using a mirror as the test device; little is known, however, about the responses of non-human primates toward their own images in media other than mirrors. This study provides preliminary data on the reactions of 10 chimpanzees to live self-images projected on two television monitors, each connected to a different video camera. Chimpanzees could see live images of their own faces, which were approximately life-sized, on one monitor. On the other monitor, they could see live images of their whole body, which were approximately one-fifth life-size, viewed diagonally from behind. In addition, several objects were introduced into the test situation. Out of 10 chimpanzees tested, 2 individuals performed self-exploratory behaviors while watching their own images on the monitors. One of these two chimpanzees successively picked up two of the provided objects in front of a monitor, and watched the images of these objects on the monitor. The results indicate that these chimpanzees were able to immediately recognize live images of themselves or objects on the monitors, even though several features of these images differed from those of their previous experience with mirrors.
	Address	Great Ape Research Institute, Hayashibara Biochemical Laboratories Inc., Okayama, Japan. hirata@gari.be.to
	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	0376-6357	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:17324534			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4145
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	Author	Zentall, T.R.
	Title	Temporal discrimination learning by pigeons			Type	Journal Article
	Year	2007	Publication	Behavioural processes	Abbreviated Journal	Behav. Process.
	Volume	74	Issue	2	Pages	286-292
	Keywords
	Abstract	Memory for time by animals appears to undergo a systematic shortening. This so-called choose-short effect can be seen in a conditional temporal discrimination when a delay is inserted between the sample and comparison stimuli. We have proposed that this temporal shortening may result from a procedural artifact in which the delay appears similar to the intertrial interval and thus, produces an inadvertent ambiguity or 'instructional failure'. When this ambiguity is avoided by distinguishing the intertrial interval from the delay, as well as the samples from the delay, the temporal shortening effect and other asymmetries often disappear. By avoiding artifacts that can lead to a misinterpretation of results, we may understand better how animals represent time. An alternative procedure for studying temporal discriminations is with the psychophysical bisection procedure in which following conditional discrimination training, intermediate durations are presented and the point of subjective equality is determined. Research using the bisection procedure has shown that pigeons represent temporal durations not only as their absolute value but also relative to durations from which they must be discriminated. Using this procedure, we have also found that time passes subjectively slower when animals are required to respond to the to-be-timed stimulus.
	Address	Department of Psychology, University of Kentucky, Lexington, KY 40506, United States. zentall@uky.edu
	Corporate Author				Thesis
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	Language	English	Summary Language		Original Title
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	ISSN	0376-6357	ISBN		Medium
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	Notes	PMID:17110057			Approved	no
	Call Number	refbase @ user @			Serial	216
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	Author	Range, F.; Bugnyar, T.; Schlogl, C.; Kotrschal, K.
	Title	Individual and sex differences in learning abilities of ravens			Type	Journal Article
	Year	2006	Publication	Behavioural Processes	Abbreviated Journal	Behav. Process.
	Volume	73	Issue	1	Pages	100-106
	Keywords	Animals; Behavior, Animal/physiology; Crows; Discrimination Learning/physiology; Exploratory Behavior/physiology; Female; Individuality; Male; Sex Factors; Spatial Behavior
	Abstract	Behavioral and physiological characteristics of individuals within the same species have been found to be stable across time and contexts. In this study, we investigated individual differences in learning abilities and object and social manipulation to test for consistency within individuals across different tasks. Individual ravens (Corvus corax) were tested in simple color and position discrimination tasks to establish their learning abilities. We found that males were significantly better in the acquisition of the first discrimination task and the object manipulation task, but not in any of the other tasks. Furthermore, faster learners engaged less often in manipulations of conspecifics and exploration of objects to get access to food. No relationship between object and social manipulation and reversal training were found. Our results suggest that individual differences in regard to the acquisition of new tasks may be related to personalities or at least object manipulation in ravens.
	Address	Konrad Lorenz Research Station, A-4645 Gruenau 11, Austria. friederike.range@univie.ac.at
	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	0376-6357	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16675158			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4146
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	Author	Zentall, T.R.
	Title	Mental time travel in animals: a challenging question			Type	Journal Article
	Year	2006	Publication	Behavioural processes	Abbreviated Journal	Behav. Process.
	Volume	72	Issue	2	Pages	173-183
	Keywords	Animals; Behavior, Animal; Columbidae; Concept Formation; Conditioning, Operant; Imagination; Memory; Mental Recall; Planning Techniques; Rats; Time Perception; Transfer (Psychology)
	Abstract	Humans have the ability to mentally recreate past events (using episodic memory) and imagine future events (by planning). The best evidence for such mental time travel is personal and thus subjective. For this reason, it is particularly difficult to study such behavior in animals. There is some indirect evidence, however, that animals have both episodic memory and the ability to plan for the future. When unexpectedly asked to do so, animals can report about their recent past experiences (episodic memory) and they also appear to be able to use the anticipation of a future event as the basis for a present action (planning). Thus, the ability to imagine past and future events may not be uniquely human.
	Address	Department of Psychology, University of Kentucky, Lexington, KY 40506-0044, USA. zentall@uky.edu
	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	0376-6357	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16466863			Approved	no
	Call Number	refbase @ user @			Serial	218
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