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Author | Lindberg, A.C.; Kelland, A.; Nicol, C.J. | ||||
Title | Effects of observational learning on acquisition of an operant response in horses | Type | Journal Article | ||
Year | 1999 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
Volume | 61 | Issue | 3 | Pages | 187-199 |
Keywords | Horse; Observational learning; Stereotyped behaviour; Operant behaviour; Breed influence; Age influence | ||||
Abstract | The effect of observational learning on the acquisition of an operant response was examined in eighteen riding horses and ponies. The test horses were randomly divided into three groups of six and individually exposed to one of three treatments. An additional horse was trained as a demonstrator, to perform the operant response. The observer horses watched either the demonstrator performing the bin-opening response (Group D+B); the demonstrator standing passively (Group D); or the operant bin in the absence of the demonstrator (Group B). Observers had access to and were free to interact with an identical bin during testing. Observers in Groups D+B and D were socially familiar with the demonstrator. Each test horse was tested once a day for 10 days. An ANOVA revealed no significant differences between treatment groups in the number of responses or the time taken to reach the learning criterion. However, there were highly significant differences between breed types, with non-warmbloods performing more bouts of opening the bin and feeding (p=0.02), feeding from the bin sooner (p=0.01) and reaching the criterion for learning sooner than warmbloods (p=0.05). There was also a significant negative linear relationship between horses' ages and time spent investigating the bin, with younger horses performing more investigative behaviour (y=-3.08x+106.86; p=0.02). | ||||
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Call Number | refbase @ user @ | Serial | 562 | ||
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Author | Bergman, T.J.; Beehner, J.C.; Cheney, D.L.; Seyfarth, R.M. | ||||
Title | Hierarchical classification by rank and kinship in baboons | Type | Journal Article | ||
Year | 2003 | Publication | Science (New York, N.Y.) | Abbreviated Journal | Science |
Volume | 302 | Issue | 5648 | Pages | 1234-1236 |
Keywords | Animals; Animals, Wild; Botswana; *Cognition; Family; Female; *Hierarchy, Social; Language; *Papio/psychology; Social Dominance; Vocalization, Animal | ||||
Abstract | Humans routinely classify others according to both their individual attributes, such as social status or wealth, and membership in higher order groups, such as families or castes. They also recognize that people's individual attributes may be influenced and regulated by their group affiliations. It is not known whether such rule-governed, hierarchical classifications are specific to humans or might also occur in nonlinguistic species. Here we show that baboons recognize that a dominance hierarchy can be subdivided into family groups. In playback experiments, baboons respond more strongly to call sequences mimicking dominance rank reversals between families than within families, indicating that they classify others simultaneously according to both individual rank and kinship. The selective pressures imposed by complex societies may therefore have favored cognitive skills that constitute an evolutionary precursor to some components of human cognition. | ||||
Address | Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA. thore@sas.upenn.edu | ||||
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Language | English | Summary Language | Original Title | ||
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ISSN | 1095-9203 | ISBN | Medium | ||
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Notes | PMID:14615544 | Approved | no | ||
Call Number | refbase @ user @ | Serial | 689 | ||
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Author | Fischer, J.; Hammerschmidt, K.; Cheney, D.L.; Seyfarth, R.M. | ||||
Title | Acoustic features of male baboon loud calls: influences of context, age, and individuality | Type | Journal Article | ||
Year | 2002 | Publication | The Journal of the Acoustical Society of America | Abbreviated Journal | J Acoust Soc Am |
Volume | 111 | Issue | 3 | Pages | 1465-1474 |
Keywords | Age Factors; Animal Communication; Animals; Individuality; Male; *Papio; *Social Environment; *Sound Spectrography; *Vocalization, Animal | ||||
Abstract | The acoustic structure of loud calls (“wahoos”) recorded from free-ranging male baboons (Papio cynocephalus ursinus) in the Moremi Game Reserve, Botswana, was examined for differences between and within contexts, using calls given in response to predators (alarm wahoos), during male contests (contest wahoos), and when a male had become separated from the group (contact wahoos). Calls were recorded from adolescent, subadult, and adult males. In addition, male alarm calls were compared with those recorded from females. Despite their superficial acoustic similarity, the analysis revealed a number of significant differences between alarm, contest, and contact wahoos. Contest wahoos are given at a much higher rate, exhibit lower frequency characteristics, have a longer “hoo” duration, and a relatively louder “hoo” portion than alarm wahoos. Contact wahoos are acoustically similar to contest wahoos, but are given at a much lower rate. Both alarm and contest wahoos also exhibit significant differences among individuals. Some of the acoustic features that vary in relation to age and sex presumably reflect differences in body size, whereas others are possibly related to male stamina and endurance. The finding that calls serving markedly different functions constitute variants of the same general call type suggests that the vocal production in nonhuman primates is evolutionarily constrained. | ||||
Address | Department of Psychology, University of Pennsylvania, Philadelphia 19104, USA. fischer@eva.mpg.de | ||||
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Language | English | Summary Language | Original Title | ||
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ISSN | 0001-4966 | ISBN | Medium | ||
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Notes | PMID:11931324 | Approved | no | ||
Call Number | refbase @ user @ | Serial | 691 | ||
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Author | Linklater, W.L.; Cameron, E.Z.; Stafford, K.J.; Veltman, C.J. | ||||
Title | Social and spatial structure and range use by Kaimanawa wild horses (Equus caballus: Equidae) | Type | Journal Article | ||
Year | 2000 | Publication | New Zealand Journal of Ecology | Abbreviated Journal | New Zealand J. Ecol. |
Volume | 24 | Issue | 2 | Pages | 139-152 |
Keywords | Bachelor male; Band; Density; Habitat use; Home range; Management proposals; Micro-climate; Vegetation monitoring; habitat use; home range; mammal; social structure; spatial distribution; New Zealand; Equus caballus | ||||
Abstract | We measured horse density, social structure, habitat use, home ranges and altitudinal micro-climates in the south-western Kaimanawa ranges east of Waiouru, New Zealand. Horse density in the Auahitotara ecological sector averaged 3.6 horses.km-2 and ranged from 0.9 to 5.2 horses.km-2 within different zones. The population's social structure was like that of other feral horse populations with an even adult sex ratio, year round breeding groups (bands) with stable adult membership consisting of 1 to 11 mares, 1 to 4 stallions, and their predispersal offspring, and bachelor groups with unstable membership. Bands and bachelor males were loyal to undefended home ranges with central core use areas. Band home range sizes varied positively with adult band size. Home ranges overlapped entirely with other home ranges. Horses were more likely to occupy north facing aspects, short tussock vegetation and flush zones and avoid high altitudes, southern aspects, steeper slopes, bare ground and forest remnants. Horses were more likely to be on north facing aspects, steeper slopes, in exotic and red tussock grasslands and flush zones during winter and at lower altitudes and on gentler slopes in spring and summer. Seasonal shifts by bands to river basin and stream valley floors in spring and higher altitudes in autumn and winter are attributed to the beginning of foaling and mating in spring and formation of frost inversion layers in winter. Given horse habitat selectivity and the presence of other ungulate herbivores, results from present exclosures are likely to exaggerate the size of horse impacts on range vegetation. Proposals to manage the population by relocation and confinement are likely to modify current social structure and range use behaviour and may lead to the need for more intensive management in the longer term. | ||||
Address | Ecology Group, Institute of Natural Resources, Massey University, Private Bag 11-222, Palmerston North, New Zealand | ||||
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ISSN | 01106465 (Issn) | ISBN | Medium | ||
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Notes | Cited By (since 1996): 12; Export Date: 21 April 2007; Source: Scopus; Language of Original Document: English; Correspondence Address: Linklater, W.L.; Ecology Group; Institute of Natural Resources; Massey University; Private Bag 11-222 Palmerston North, New Zealand; email: wlinklater@hotmail.com | Approved | no | ||
Call Number | refbase @ user @ | Serial | 793 | ||
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Author | Lansade, L.; Bertrand, M.; Bouissou, M.-F. | ||||
Title | Effects of neonatal handling on subsequent manageability, reactivity and learning ability of foals | Type | Journal Article | ||
Year | 2005 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
Volume | 92 | Issue | 1-2 | Pages | 143-158 |
Keywords | Horse; Neonatal handling; Manageability; Emotional reactivity; Learning-ability; Human-animal relationship | ||||
Abstract | Behaviour is an important factor to be taken into account in the various uses of horses. Today horses are mainly used for sport and leisure activities. They should therefore be easy to manage, calm and not fearful. Early handling is known to improve manageability and learning ability and to reduce fearfulness in various species. It has become fashionable in the horse industry to use an early training procedure, referred to as “imprint training”, which is said to produce durable if not permanent effects. However, no studies concerning the long-term effects of such neonatal handling have been carried out in horses. The present study examines the short- and long-term effects of neonatal handling on manageability, general reactivity and learning ability of foals. Twenty-six Welsh foals were studied: 13 were handled daily for 14 days from birth and 13 were non-handled controls. The handling procedure consisted of fitting a halter, gently patting all parts of each foal's body, picking up feet and leading over 40 m. Two days, 3 months, 6 months and 1 year after the end of the handling period, foals underwent behavioural tests to measure their manageability and various aspects of their reactivity. The results showed that neonatal handling has only short-term effects on manageability: 2 days after the handling period, handled animals were significantly easier to handle than controls for the four parameters measured during this test (time to fit a halter, time to pick up feet, walk ratio that is time during which foal walks under constraint/total time measured during leading and number of defensive reactions). Two parameters (time to fit a halter and walk ratio) were still lower in handled foals than in non-handled foals 3 months later and only one 6 months later (walk ratio). One year later there was no difference between groups. In addition, there was no effect of handling on reactivity at any time of testing or in any of the tests (reaction to isolation from conspecifics, presence of a human, presence of a novel object and to a surprise effect). Finally, neonatal handling did not improve the spatial or discriminative learning abilities measured at 14 months of age. To conclude, the effects of neonatal handling are only temporary. | ||||
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Call Number | refbase @ user @ | Serial | 841 | ||
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Author | Lansade, L.; Bertrand, M.; Boivin, X.; Bouissou, M.-F. | ||||
Title | Effects of handling at weaning on manageability and reactivity of foals | Type | Journal Article | ||
Year | 2004 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
Volume | 87 | Issue | 1-2 | Pages | 131-149 |
Keywords | Horse; Handling; Weaning; Manageability; Emotional reactivity; Fearfulness; Human-animal relationship | ||||
Abstract | The horse's temperament, including its manageability and reactivity and/or fearfulness, is of importance as it can result in problems and can render horses unsuitable for inexperienced riders. Early experience, including handling during infancy, may influence the horse's adult behaviour and reduce its fear of humans and other potentially frigthening situations. In the various species studied, handling has generally been undertaken during the neonatal period. The aim of the present study was to test the effects of handling young horses around the time of weaning, a period which has been demonstrated to be effective in increasing ease of handling in cattle and goats. Sixteen Anglo-Arab foals were handled for 12 days either immediately following weaning (early handled: EH) or 21 days later (late handled: LH); eight additional non-handled foals served as controls (C). Handling consisted of haltering, gently petting all parts of the body, picking up feet and leading the foal over 120 m. During handling sessions, EH were easier to handle than LH: time taken to fit them with a halter, to pick up feet, and “walk-ratio” (time walking under constraint/total time walking) were significantly lower for EH. During subsequent tests conducted over 2 days, 4, and 7 months, as well as 10 months and to some extent 18 months after the end of handling period, EH and LH were easier to handle and less reactive than controls, although differences diminished with time. The period following weaning can therefore be qualified as an “optimal period” for handling. Some of the effects persist for at least 18 months. | ||||
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Notes | Approved | no | |||
Call Number | refbase @ user @ | Serial | 842 | ||
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Author | Farmer-Dougan, V.; Dougan, J. | ||||
Title | The Man Who Listens To Behavior: Folk Wisdom And Behavior Analysis From A Real Horse Whisperer | Type | Journal Article | ||
Year | 1999 | Publication | JOURNAL OF THE EXPERIMENTAL ANALYSIS OF BEHAVIOR | Abbreviated Journal | J Exp Anal Behav |
Volume | 72 | Issue | 1 | Pages | 139-149 |
Keywords | positive reinforcement, aversive control, learned helplessness, language, biological constraints, | ||||
Abstract | The popular novel and movie The Horse Whisperer are based on the work of several real-life horse whisperers, the most famous of whom is Monty Roberts. Over the last 50 years, Roberts has developed a technique for training horses that is both more effective and less aversive than traditional training techniques. An analysis of Roberts` methods (as described in his book, The Man Who Listens to Horses) indicates a deep understanding of behavioral principles including positive reinforcement, timeout, species-specific defense reactions, learned helplessness, and the behavioral analysis of language. Roberts developed his theory and techniques on the basis of personal experience and folk wisdom, and not as the result of formal training in behavior analysis. Behavior analysts can clearly learn from such insightful yet behaviorally incorrect practitioners, just as such practitioners can benefit from the objective science of behavior analysts. |
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Language | English | Summary Language | Original Title | ||
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ISSN | 0022-5002 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | PMID:16812908 | Approved | no | ||
Call Number | refbase @ user @ | Serial | 1829 | ||
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Author | Madigan, J.E.; Bell, S.A. | ||||
Title | Owner survey of headshaking in horses | Type | Journal Article | ||
Year | 2001 | Publication | Journal of the American Veterinary Medical Association | Abbreviated Journal | J Am Vet Med Assoc |
Volume | 219 | Issue | 3 | Pages | 334-337 |
Keywords | Animals; Anti-Allergic Agents/*therapeutic use; *Behavior, Animal/drug effects; Cyproheptadine/*therapeutic use; Data Collection; Diagnosis, Differential; Female; Horse Diseases/diagnosis/drug therapy/*etiology; Horses; Humans; Male; Questionnaires; Seasons | ||||
Abstract | OBJECTIVE: To determine signalment, history, clinical signs, duration, seasonality, and response to various treatments reported by owners for headshaking in horses. DESIGN: Owner survey. ANIMALS: 109 horses with headshaking. PROCEDURE: Owners of affected horses completed a survey questionnaire. RESULTS: 78 affected horses were geldings, 29 were mares, and 2 were stallions. Mean age of onset was 9 years. Headshaking in 64 horses had a seasonal component, and for most horses, headshaking began in spring and ceased in late summer or fall. The most common clinical signs were shaking the head in a vertical plane, acting like an insect was flying up the nostril, snorting excessively, rubbing the muzzle on objects, having an anxious expression while headshaking, worsening of clinical signs with exposure to sunlight, and improvement of clinical signs at night. Treatment with antihistamines, nonsteroidal anti-inflammatory drugs, corticosteroids, antimicrobials, fly control, chiropractic, and acupuncture had limited success. Sixty-one horses had been treated with cyproheptadine; 43 had moderate to substantial improvement. CONCLUSIONS AND CLINICAL RELEVANCE: Headshaking may have many causes. A large subset of horses have similar clinical signs including shaking the head in a vertical plane, acting as if an insect were flying up the nostrils, and rubbing the muzzle on objects. Seasonality and worsening of clinical signs with exposure to light are also common features of this syndrome. Geldings and Thoroughbreds appear to be overrepresented. Cyproheptadine treatment was beneficial in more than two thirds of treated horses. | ||||
Address | Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis 95616, USA | ||||
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Language | English | Summary Language | Original Title | ||
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ISSN | 0003-1488 | ISBN | Medium | ||
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Notes | PMID:11497047 | Approved | no | ||
Call Number | refbase @ user @ | Serial | 1916 | ||
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Author | Madigan, J.E.; Kortz, G.; Murphy, C.; Rodger, L. | ||||
Title | Photic headshaking in the horse: 7 cases | Type | Journal Article | ||
Year | 1995 | Publication | Equine Veterinary Journal | Abbreviated Journal | Equine Vet J |
Volume | 27 | Issue | 4 | Pages | 306-311 |
Keywords | Animals; Anti-Allergic Agents/therapeutic use; *Behavior, Animal; Cyproheptadine/therapeutic use; Female; *Head; Horse Diseases/drug therapy/*etiology; Horses; Light/*adverse effects; Male; Movement Disorders/drug therapy/etiology/*veterinary | ||||
Abstract | Seven horses with headshaking are described. No physical abnormalities were detected in any of the cases. Six of these horses had onset of clinical signs in the spring. The role of light was assessed by application of a blindfold or dark grey lens to the eyes, covering the eyes with a face mask and observing the horse in total darkness outdoors. Cessation of headshaking was observed with blindfolding (5/5 horses), night darkness outdoors (4/4 horses) and use of grey lenses (2/3 horses). Outdoor behaviour suggested efforts to avoid light in 4/4 cases. The photic sneeze in man is suggested as a putative mechanism for equine headshaking. Five of 7 horses had improvement with cyproheptadine treatment (0.3 mg/kg bwt b.i.d.). Headshaking developed within 2 calendar weeks of the same date for 3 consecutive years in one horse. Neuropharmacological alterations associated with photoperiod mechanisms leading to optic trigeminal summation are suggested as possible reasons for spring onset of headshaking. | ||||
Address | Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis 95616-8737, USA | ||||
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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:8536668 | Approved | no | ||
Call Number | refbase @ user @ | Serial | 1940 | ||
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Author | Harkins, J.D.; Kamerling, S.G.; Church, G. | ||||
Title | Effect of competition on performance of thoroughbred racehorses | Type | Journal Article | ||
Year | 1992 | Publication | Journal of Applied Physiology (Bethesda, Md. : 1985) | Abbreviated Journal | J Appl Physiol |
Volume | 72 | Issue | 3 | Pages | 836-841 |
Keywords | Age Factors; Animals; Anxiety/physiopathology; Competitive Behavior/*physiology; Exertion/*physiology; Fatigue/physiopathology; Female; Heart Rate; Horses/*physiology; Lactates/blood; Lactic Acid; Male; Sex Characteristics | ||||
Abstract | The effect of competition and the influence of age and sex on performance were examined in a study of 18 Thoroughbred racehorses. The horses performed two solo and two competitive runs at 1,200 and 1,600 m for a total of eight runs. No group ran faster during competition, which may have been a reflection of the quality of horses used for this study and their susceptibility to stress-induced impairment of performance. Males showed no significant difference between competitive and solo run times, whereas females were consistently slower during competition. Males ran significantly faster than females in all runs. There was no difference in run times due to age, which may have been due to the high mean age (5.9 yr) of the group. The slower competitive run times may have occurred because of an earlier onset of fatigue when compared with solo runs. Plasma lactate was significantly greater for the 1,200-m competitive than for the solo runs. | ||||
Address | Department of Veterinary Physiology, Pharmacology, and Toxicology, School of Veterinary Medicine, Louisiana State University, Baton Rouge 70803 | ||||
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ISSN | 8750-7587 | ISBN | Medium | ||
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Notes | PMID:1568979 | Approved | no | ||
Call Number | refbase @ user @ | Serial | 1947 | ||
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