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	Author	Nicol, C.J.; Badnell-Waters, A.J.; Bice, R.; Kelland, A.; Wilson, A.D.; Harris, P.A.
	Title	The effects of diet and weaning method on the behaviour of young horses			Type	Journal Article
	Year	2005	Publication	Applied Animal Behaviour Science	Abbreviated Journal	Appl. Anim. Behav. Sci.
	Volume	95	Issue	3-4	Pages	205-221
	Keywords	Horse; Diet; Weaning; Temperament test
	Abstract	The effects of diet on horse behaviour have not previously been quantified in detail. In this study, we examined the behaviour of 17 foals from the age of 2 to 40 weeks. Each foal received either a starch and sugar (SS) diet or a fat and fibre (FF) diet. The two diets contained similar digestible energy, crude protein and micronutrients, but differed in the fat and non-structural carbohydrate balance. The baseline behaviour of the foals was observed every 2 weeks by focal animal sampling. Additional behavioural observations were conducted when the foals were weaned by one of two methods. Approximately 2 months after weaning, the temperament and tractability of the young horses was assessed using standardised tests. Responses to a novel object, to a novel person, and during a handling test were observed and quantified. Horses grew well on both diets with no apparent effects of diet on growth rate or baseline behaviour. Immediately after weaning, horses receiving the FF diet cantered less frequently (F = 5.10; p < 0.05), for a shorter duration (F = 7.23; p < 0.05) and appeared to be more settled. Foals that were barn-weaned appeared more stressed than foals that were paddock-weaned. In the temperament tests, horses receiving the FF diet spent significantly more time investigating (F = 6.78; p < 0.05), and less time looking at (F = 7.93; p < 0.05), the novel object than horses receiving the SS diet. They also spent less time walking away from the novel person (F = 5.16; p < 0.05) and their time taken to complete the handling test was significantly lower (F = 8.72; p = 0.01). Overall, the horses that received the FF diet appeared less distressed immediately after weaning and seemed calmer and more inquisitive during a range of temperament tests.
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	Call Number	Equine Behaviour @ team @			Serial	3642
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	Author	Apfelbach, R.; Blanchard, C.D.; Blanchard, R.J.; Hayes, R.A.; McGregor, I.S.
	Title	The effects of predator odors in mammalian prey species: A review of field and laboratory studies			Type	Journal Article
	Year	2005	Publication	Neuroscience and Biobehavioral Reviews	Abbreviated Journal
	Volume	29	Issue	8	Pages	1123-1144
	Keywords	Behavioral suppression; Defensive behavior; Endocrine effects; Neural effects; Predator odor; Small mammals
	Abstract	Prey species show specific adaptations that allow recognition, avoidance and defense against predators. For many mammalian species this includes sensitivity towards predator-derived odors. The typical sources of such odors include predator skin and fur, urine, feces and anal gland secretions. Avoidance of predator odors has been observed in many mammalian prey species including rats, mice, voles, deer, rabbits, gophers, hedgehogs, possums and sheep. Field and laboratory studies show that predator odors have distinctive behavioral effects which include (1) inhibition of activity, (2) suppression of non-defensive behaviors such as foraging, feeding and grooming, and (3) shifts to habitats or secure locations where such odors are not present. The repellent effect of predator odors in the field may sometimes be of practical use in the protection of crops and natural resources, although not all attempts at this have been successful. The failure of some studies to obtain repellent effects with predator odors may relate to (1) mismatches between the predator odors and prey species employed, (2) strain and individual differences in sensitivity to predator odors, and (3) the use of predator odors that have low efficacy. In this regard, a small number of recent studies have suggested that skin and fur-derived predator odors may have a more profound lasting effect on prey species than those derived from urine or feces. Predator odors can have powerful effects on the endocrine system including a suppression of testosterone and increased levels of stress hormones such as corticosterone and ACTH. Inhibitory effects of predator odors on reproductive behavior have been demonstrated, and these are particularly prevalent in female rodent species. Pregnant female rodents exposed to predator odors may give birth to smaller litters while exposure to predator odors during early life can hinder normal development. Recent research is starting to uncover the neural circuitry activated by predator odors, leading to hypotheses about how such activation leads to observable effects on reproduction, foraging and feeding. © 2005 Elsevier Ltd. All rights reserved.
	Address	School of Psychology, University of Sydney, Sydney, NSW 2006, Australia
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4565
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	Author	Nathan J. Emery
	Title	The Evolution of Social Cognition			Type	Book Chapter
	Year	2005	Publication	The Cognitive Neuroscience of Social BehaviourGarten	Abbreviated Journal
	Volume		Issue		Pages
	Keywords
	Abstract	Although this bookis focusedon the cognitive neuroscience ofhuman social behaviour, an understandingofsocial cognition in non-human animals is critical for unravellingthe neural basis of social cognition in humans as well as the selective pressures that have shapedthe evolution ofcomplex social cognition. Thanks to methodological limitations, we know little about the relationships between certain biochemical andelectrophysiological properties ofthe human brain andhow theycompute the behaviour andmental states ofother individuals. Traditional techniques for examiningneural function in humans, such as event-relatedpotentials (ERP),positron emission tomography(PET),and functional magnetic resonance imaging(fMRI),are constrainedbythe fact that subjects are placed either into an immoveable scanner with a lot ofbackgroundnoise or wiredup with dozens of electrodes that are sensitive to slight movements. The possibilityofscanningor recordingbrain waves from two individuals that are physicallyinteractingsociallyis technicallyimpossible at present (however, see Montague et al, 2002 for a new methodfor simultaneouslyscanningtwo individuals interactingvia a computer). The onlywayto understandthe neurocognitive architecture ofhuman social behaviour is to examine similar social processes in both human andnon-human animal minds andmake comparisons at the species level. An additional argument is that traditional human socio-cognitive tasks are dependent on the use ofstories, cartoons andverbal cues andinstructions (Heberlein & Adolphs, this volume)which themselves will elicit specific neural responses that have to be eliminatedfrom neural responses specificallyrelatedto mindreading. Therefore, the development ofnon-verbal tasks wouldprovide a breakthrough for studies in non-linguistic animals, pre-verbal human infants andhuman cognitive neuroimaging.
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	Publisher	Psychology Press	Place of Publication		Editor
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	Notes				Approved	no
	Call Number	refbase @ user @			Serial	543
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	Author	Rhodin, M.; Johnston, C.; Holm, K.R.; Wennerstrand, J.; Drevemo, S.
	Title	The influence of head and neck position on kinematics of the back in riding horses at the walk and trot			Type	Journal Article
	Year	2005	Publication	Equine Veterinary Journal	Abbreviated Journal	Equine Vet J
	Volume	37	Issue	1	Pages	7-11
	Keywords	Acceleration; Animals; Back/physiology; Biomechanics; Exercise Test/veterinary; Female; Gait/physiology; Head/physiology; Horses/physiology; Male; Movement/physiology; Neck/*physiology; Walking/physiology
	Abstract	REASONS FOR PERFORMING STUDY: A common opinion among riders and in the literature is that the positioning of the head and neck influences the back of the horse, but this has not yet been measured objectively. OBJECTIVES: To evaluate the effect of head and neck position on the kinematics of the back in riding horses. METHODS: Eight Warmblood riding horses in regular work were studied on a treadmill at walk and trot with the head and neck in 3 different predetermined positions achieved by side reins attached to the bit and to an anticast roller. The 3-dimensional movement of the thoracolumbar spine was measured from the position of skin-fixed markers recorded by infrared videocameras. RESULTS: Head and neck position influenced the movements of the back, especially at the walk. When the head was fixed in a high position at the walk, the flexion-extension movement and lateral bending of the lumbar back, as well as the axial rotation, were significantly reduced when compared to movements with the head free or in a low position. At walk, head and neck position also significantly influenced stride length, which was shortest with the head in a high position. At trot, the stride length was independent of head position. CONCLUSIONS: Restricting and restraining the position and movement of the head and neck alters the movement of the back and stride characteristics. With the head and neck in a high position stride length and flexion and extension of the caudal back were significantly reduced. POTENTIAL RELEVANCE: Use of side reins in training and rehabilitation programmes should be used with an understanding of the possible effects on the horse's back.
	Address	Department of Anatomy, Swedish University of Agricultural Sciences, 750 07 Uppsala, Sweden
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	Language	English	Summary Language		Original Title
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	ISSN	0425-1644	ISBN		Medium
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	Notes	PMID:15651727			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3657
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	Author	Stevens, J.; Vervaecke, H.; de Vries, H.; Van Elsacker, L.
	Title	The influence of the steepness of dominance hierarchies on reciprocity and interchange in captive groups of bonobos (Pan paniscus)			Type	Journal Article
	Year	2005	Publication	Behaviour	Abbreviated Journal	Behaviour
	Volume	142	Issue	7	Pages	941-960
	Keywords
	Abstract	Biological market models explain variability in reciprocity and interchange between groups. In groups with a shallow dominance gradient, grooming will be mostly exchanged for itself (i.e. exchange will occur). In groups with steep dominance hierarchies, interchange is expected: individuals will groom higher ranking individuals to get access to limited resources or commodities such as support in conflicts, and grooming will be traded for these commodities. We examine patterns of reciprocity in grooming and support, and of interchange of grooming for support or for tolerance in six captive groups of bonobos. We test whether differences between groups in patterns of reciprocity and interchange can be attributed to differences in a measure of steepness of dominance hierarchies, which is based on dyadic agonistic interactions. We found that grooming was reciprocal in some, but not all groups. Support was highly reciprocal, but this was a side effect of dominance in most groups. Interchange between grooming and support was observed in some groups. Corroborating earlier findings, this was a side effect of individuals preferring high ranking individuals as grooming and support partners, possibly because these high-ranking individuals provide more efficient support in conflicts. There was no evidence for interchange of grooming for tolerance. Variability in grooming reciprocity was explained by differences in steepness of dominance hierarchies, as predicted by the biological market models. In groups with a shallow dominance hierarchy, grooming was more reciprocal. This was not true for reciprocity in support. There was some evidence that individuals groomed dominants more frequently in groups with a steep dominance hierarchy. The variation in interchange relations between grooming and support did not depend on the steepness of dominance hierarchies. We suggest that grooming in itself is a valuable commodity in bonobos, especially under captive conditions, which can be exchanged reciprocally. Bonobos may interchange grooming for another value equivalent, with food sharing as a very likely candidate. This interchange effects seem more dependent on potential to monopolise food than on steepness of dominance hierarchies per se.
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	Call Number	Equine Behaviour @ team @			Serial	2194
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	Author	de Waal, F.B.M.; Dindo, M.; Freeman, C.A.; Hall, M.J.
	Title	The monkey in the mirror: hardly a stranger			Type	Journal Article
	Year	2005	Publication	Proceedings of the National Academy of Sciences of the United States of America	Abbreviated Journal	Proc. Natl. Acad. Sci. U.S.A.
	Volume	102	Issue	32	Pages	11140-11147
	Keywords	Analysis of Variance; Animals; Cebus/physiology; Discrimination (Psychology); Empathy; Female; Male; Observation; Recognition (Psychology); Self Concept; Sex Factors
	Abstract	It is widely assumed that monkeys see a stranger in the mirror, whereas apes and humans recognize themselves. In this study, we question the former assumption by using a detailed comparison of how monkeys respond to mirrors versus live individuals. Eight adult female and six adult male brown capuchin monkeys (Cebus apella) were exposed twice to three conditions: (i) a familiar same-sex partner, (ii) an unfamiliar same-sex partner, and (iii) a mirror. Females showed more eye contact and friendly behavior and fewer signs of anxiety in front of a mirror than they did when exposed to an unfamiliar partner. Males showed greater ambiguity, but they too reacted differently to mirrors and strangers. Discrimination between conditions was immediate, and blind coders were able to tell the difference between monkeys under the three conditions. Capuchins thus seem to recognize their reflection in the mirror as special, and they may not confuse it with an actual conspecific. Possibly, they reach a level of self-other distinction intermediate between seeing their mirror image as other and recognizing it as self.
	Address	Living Links Center, Emory University, Atlanta, GA 30322, USA. dewaal@emory.edu
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	Language	English	Summary Language		Original Title
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	ISSN	0027-8424	ISBN		Medium
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	Notes	PMID:16055557			Approved	no
	Call Number	refbase @ user @			Serial	164
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	Author	O'Connell, S.; Dunbar, R.I.M.
	Title	The perception of causality in chimpanzees (Pan spp.)			Type	Journal Article
	Year	2005	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	8	Issue	1	Pages	60-66
	Keywords	Animals; Association Learning; Awareness; Concept Formation; Female; Habituation, Psychophysiologic; Male; Pan paniscus/psychology; Pan troglodytes/*psychology; Perception
	Abstract	Chimpanzees (Pan spp.) were tested on a habituation/dishabituation paradigm that was originally developed to test for comprehension of causality in very young human infants. Three versions of the test were used: a food item being moved by a hand, a human pushing another human off a chair to obtain a food item, and a film clip of natural chimpanzee behaviour (capturing and eating a monkey). Chimpanzees exhibited similar results to those obtained with human infants, with significantly elevated levels of looking on the dishabituation trials. Since the level of response was significantly greater on natural/unnatural sequences than on unnatural/natural sequences, we conclude that the chimpanzees were not responding just to novelty but rather to events that infringed their sense of natural causation.
	Address	Evolutionary Psychology Research Group, School of Biological Sciences, Biosciences Building, University of Liverpool, Liverpool, L69 7ZB, UK
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	Language	English	Summary Language		Original Title
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	Series Volume		Series Issue		Edition
	ISSN	1435-9448	ISBN		Medium
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	Notes	PMID:15322943			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2514
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	Author	Pongrácz, P.; Miklósi, Á.; Vida, V.; Csányi, V.
	Title	The pet dogs ability for learning from a human demonstrator in a detour task is independent from the breed and age			Type	Journal Article
	Year	2005	Publication	Applied Animal Behaviour Science	Abbreviated Journal	Appl. Anim. Behav. Sci.
	Volume	90	Issue	3	Pages	309-323
	Keywords	Dog; Breed differences; Social learning
	Abstract	There are many indications and much practical knowledge about the different tasks which various breeds of dogs are selected for. Correspondingly these different breeds are known to possess different physical and mental abilities. We hypothesized that commonly kept breeds will show differences in their problem solving ability in a detour task around a V-shaped fence, and also, that breed differences will affect their learning ability from a human demonstrator, who demonstrates a detour around the fence. Subjects were recruited in Hungarian pet dog schools. We compared the results of the 10 most common breeds in our sample when they were tested in the detour task without human demonstration. There was no significant difference between the latencies of detour, however, there was a trend that German Shepherd dogs were the quickest and Giant Schnauzers were the slowest in this test. For testing the social learning ability of dogs we formed three breed groups (“utility”, “shepherd” and “hunting”). There were no significant differences between these, all the breed groups learned equally well from the human demonstrator. However, we found that dogs belonging to the “shepherd” group looked back more frequently to their owner than the dogs in the “hunting” group. Further, we have found that the age of pet dogs did not affect their social learning ability in the detour task. Our results showed that the pet status of a dog has probably a stronger effect on its cognitive performance and human related behaviour than its age or breed. These results emphasize that socialization and common activities with the dog might overcome the possible breed differences, if we give the dogs common problem solving, or social learning tasks.
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	ISSN	0168-1591	ISBN		Medium
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	6584
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	Author	Miller, R.; Lamb, R.
	Title	The Revolution in Horsemanship: And What It Means to Mankind			Type	Book Whole
	Year	2005	Publication		Abbreviated Journal
	Volume		Issue		Pages
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	Abstract	Synopsis Beginning with equine evolution and domestication, Dr. Miller and Rick Lamb focus on the contributions of such classical horsemen as Xenophon, Pluvinel, nineteenth-century “whisperers, tamers, and professors,” and modern masters like the Dorrances, Buck Brannaman, Pat Parelli, John Lyons, and their disciples, and the connection between rodeo and natural horsemanship. The authors describe how the horse's mind works, how horses learn, and how the revolution has used those principles, especially with regard to a training regimen for newborn foals developed by Dr. Miller that produces positive results to last a lifetime. These training methods include new techniques in riding, such as preliminary groundwork and the independent seat, as well as visualization and other aspects of sport psychology, yoga, and allied disciplines. Appendices assess innovations in hoof care, nutrition, and veterinary treatment, including so-called “alternative therapies.”
	Address
	Corporate Author				Thesis
	Publisher	The Lyons Press	Place of Publication	Guilford,Connecticut	Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN	978-1592283873	Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2169
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	Author	Gazit, I.; Goldblatt, A.; Terkel, J.
	Title	The role of context specificity in learning: the effects of training context on explosives detection in dogs			Type	Journal Article
	Year	2005	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	8	Issue	3	Pages	143-150
	Keywords	Animals; Association Learning; Conditioning, Classical; Discrimination Learning; Dogs; Environment; Generalization, Stimulus; *Smell
	Abstract	Various experiments revealed that if an animal learns a stimulus-response-reinforcer relationship in one context and is then tested in another context there is usually a lessening of stimulus control, and the same discriminative stimuli that reliably controlled the behavior in the first context will have less effect in the new context. This reduction in performance is known as the “context shift effect.” The effect of changing context on the probability of detecting explosives was investigated in seven highly trained explosives detection dogs (EDDs). In experiment 1 the dogs were trained alternately on path A, which always had five hidden explosives, and on a very similar path B, which never had any explosives. Within a few sessions the dogs showed a significant decrease in search behavior on path B, but not on path A. In experiment 2 the same dogs were trained only on path B with a target density of one explosive hidden every 4th day. The probability of the dogs now detecting the explosive was found to be significantly lower than in experiment 1. In experiment 3 the effect of the low target density as used in experiment 2 was investigated on a new but very similar path C. Both the detection probability for the one explosive every 4th day on the new path and the motivation to search were significantly higher than found in experiment 2. Finally, in experiment 4, an attempt was made to recondition the dogs to search on path B. Although trained for 12 daily sessions with one explosive hidden every session, the dogs failed to regain the normal levels of motivation they had shown on both new paths and on the paths that they knew usually contained explosives. The findings reveal that even a very intensively trained EDD will rapidly learn that a specific stretch of path does not contain explosives. The dog will then be less motivated to search and will miss newly placed targets. This learning is specific to the formerly always-clean path and is to some extent irreversible. However, the dog will search and detect normally on new paths even if they are very similar to the always-clean path. The data are discussed in terms of variables affecting renewal. The results suggest that following training designed to make a behavior “context independent,” any extinction training will not generalize beyond that specific context used during the extinction training. In addition, if the behavior is extinguished in a specific context, it will be very difficult to restore that behavior in that context. These conclusions should be considered by anyone attempting to extinguish well-established trans-context behaviors.
	Address	Department of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 69978, Israel. iritgazi@post.tau.ac.il
	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	1435-9448	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:15449101			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2509
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