| Records |
| Author |
Austin, N.P.; Rogers, L.J. |
| Title |
Asymmetry of flight and escape turning responses in horses |
Type |
Journal Article |
| Year |
2007 |
Publication |
Laterality |
Abbreviated Journal |
Laterality |
| Volume |
12 |
Issue |
5 |
Pages |
464-474 |
| Keywords |
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| Abstract |
We investigated whether horses display greater reactivity to a novel stimulus presented in the left compared to the right monocular visual field, and whether a population bias exists for escape turning when the same stimulus was presented binocularly. Domestic horses (N=30) were tested on three occasions by a person opening an umbrella five metres away and then approaching. The distance each horse moved away before stopping was measured. Distance was greatest for approach on the left side, indicating right hemisphere control of flight behaviour, and thus followed the same pattern found previously in other species. When order of monocular presentation was considered, an asymmetry was detected. Horses tested initially on the left side exhibited greater reactivity for left approach, whereas horses tested on the right side first displayed no side difference in reactivity. Perhaps left hemisphere inhibition of flight response allowed horses to learn that the stimulus posed no threat and this information was transferred to the right hemisphere. No population bias existed for the direction of escape turning, but horses that turned to the right when approached from the front were found to exhibit longer flight distances than those that turned to the left. |
| Address |
University of New England, Armidale, NSW, Australia |
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English |
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1357-650X |
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| Notes |
PMID:17712716 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4304 |
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| Author |
J. Keay-Bright, J.B. |
| Title |
The influence of land management on soil erosion in the Sneeuberg Mountains, Central Karoo, South Africa |
Type |
Journal Article |
| Year |
2007 |
Publication |
Land Degradation & Development |
Abbreviated Journal |
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| Volume |
18 |
Issue |
4 |
Pages |
423-439 |
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| Abstract |
Farm practices in the Sneeuberg Mountains, Karoo, South Africa are examined to assess their contribution to the development of the observed gullies and badlands. Data from the literature is augmented by interviews with local farmers and measurements in the field. Changes in stocking rates, grazing systems and technological advances are assessed for their impact on soil erosion, vegetation cover and species composition. The possibility of natural and managed rehabilitation of badland areas is discussed, as are future prospects for farm management in the Sneeuberg. The findings suggest that high stock numbers and less benign management practices in the 19th century and the early 20th century underlie much of the degradation seen today. Copyright – 2007 John Wiley & Sons, Ltd. |
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| ISSN |
1099-145x |
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no |
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Equine Behaviour @ team @ J.Keay-Bright2007 |
Serial |
3548 |
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| Author |
Cohen, J. |
| Title |
Animal behavior. The world through a chimp's eyes |
Type |
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| Year |
2007 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
316 |
Issue |
5821 |
Pages |
44-45 |
| Keywords |
Animal Communication; Animals; *Behavior, Animal; Cognition; Cooperative Behavior; Culture; Memory; Pan troglodytes/*psychology; Social Behavior; Tool Use Behavior |
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1095-9203 |
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| Notes |
PMID:17412932 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
2832 |
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| Author |
Morell, V. |
| Title |
Nicola Clayton profile. Nicky and the jays |
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| Year |
2007 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
315 |
Issue |
5815 |
Pages |
1074-1075 |
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Animals; *Behavior, Animal; *Cognition; England; History, 20th Century; History, 21st Century; Intelligence; Memory; Passeriformes/*physiology; Portraits |
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1095-9203 |
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| Notes |
PMID:17322042 |
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no |
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Equine Behaviour @ team @ |
Serial |
2833 |
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| Author |
Straub, A. |
| Title |
An intelligent crow beats a lab |
Type |
Journal Article |
| Year |
2007 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
316 |
Issue |
5825 |
Pages |
688 |
| Keywords |
Animals; *Behavior, Animal; *Cognition; *Crows; Dogs; Intelligence; Memory |
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English |
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1095-9203 |
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| Notes |
PMID:17478698 |
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no |
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Equine Behaviour @ team @ |
Serial |
4102 |
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| Author |
Bannasch, D.; Rinaldo, C.; Millon, L.; Latson, K.; Spangler, T.; Hubberty, S.; Galuppo, L.; Lowenstine, L. |
| Title |
SRY negative 64,XX intersex phenotype in an American saddlebred horse |
Type |
Journal Article |
| Year |
2007 |
Publication |
Veterinary Journal (London, England : 1997) |
Abbreviated Journal |
Vet J |
| Volume |
173 |
Issue |
2 |
Pages |
437-439 |
| Keywords |
Animals; Female; Genitalia/abnormalities; Hermaphroditism/*veterinary; Horse Diseases/*diagnosis/genetics; Horses/*genetics/*physiology; Karyotyping; Phenotype; Sex Differentiation; Sex Differentiation Disorders/diagnosis/veterinary; Sex-Determining Region Y Protein/genetics/*metabolism |
| Abstract |
A female American saddlebred horse was presented for surgical correction of a possible pseudohermaphrodite condition. The horse had abnormal external genitalia and exhibited stallion-like behaviour. No evidence of uterine or ovarian tissue was identified on laparoscopic examination, but hypoplastic testicular-like tissue was removed, although this was found to contain no spermatogonia upon histopathological examination. A karyotype was performed and showed the normal chromosomal complement for a female horse (64,XX). Polymerase chain reaction to detect the SRY gene was negative in peripheral blood as well as the testicular-like tissue. This case represents the first report of an SRY negative XX-male sex reversal intersex phenotype, which is a potentially inherited condition, in an American saddlebred horse. |
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Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA. dlbannasch@ucdavis.edu |
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English |
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| ISSN |
1090-0233 |
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| Notes |
PMID:16386440 |
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no |
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Serial |
1882 |
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| Author |
Singer, E.R.; Barnes, J.; Saxby, F.; Murray, J.K. |
| Title |
Injuries in the event horse: Training versus competition |
Type |
Journal Article |
| Year |
2007 |
Publication |
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Abbreviated Journal |
Vet J |
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Issue |
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Pages |
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Two related studies on injuries sustained by event horses during competition and during training are reported. During the cross-country phase of competition, the most common injuries were lacerations and abrasions to the carpus and stifle. Superficial digital flexor tendonitis and exertional rhabdomyolysis were significantly more common during Cours Complete Internationale (CCI) competitions compared to one-day event (ODE) competitions. The difference in injury types at ODEs and CCI competitions probably relates to the increased athletic demands of the CCI and the closer veterinary observation at these competitions. The results of the training study indicate that 21% of horses intending to compete in a CCI did not start due to injury. Forty-three percent of these injuries involved soft tissue structures with injuries to the superficial digital flexor tendon and the suspensory ligament each accounting for 33%. The most important area for future research is investigation of the risk factors for these career-threatening soft tissue injuries. |
| Address |
Division of Equine Studies, University of Liverpool, Leahurst, Neston, South Wirral, CH64 7TE, UK |
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English |
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1090-0233 |
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| Notes |
PMID:17204438 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
4025 |
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| Author |
Henderson, A.J.Z. |
| Title |
Don't fence me in: managing psychological well being for elite performance horses |
Type |
Journal Article |
| Year |
2007 |
Publication |
Journal of Applied Animal Welfare Science : JAAWS |
Abbreviated Journal |
J. Appl. Anim. Welf. Sci. |
| Volume |
10 |
Issue |
4 |
Pages |
309-329 |
| Keywords |
*Animal Husbandry; Animal Welfare; Animals; *Behavior, Animal; Horses/*psychology; *Physical Conditioning, Animal; *Stereotyped Behavior |
| Abstract |
This article posits that stereotypical behavior patterns and the overall psychological well being of today's performance horse could be substantially enhanced with care that acknowledges the relationship between domesticated horses and their forerunners. Feral horses typically roam in stable, social groups over large grazing territories, spending 16-20 hr per day foraging on mid- to poor-quality roughage. In contrast, today's elite show horses live in relatively small stalls, eat a limited-but rich-diet at specific feedings, and typically live in social isolation. Although the horse has been domesticated for more than 6000 years, there has been no selection for an equid who no longer requires an outlet for these natural behaviors. Using equine stereotypies as a welfare indicator, this researcher proposes that the psychological well being of today's performance horse is compromised. Furthermore, the article illustrates how minimal management changes can enhance horses' well being while still remaining compatible with the requirements of the sport-horse industry. The article discusses conclusions in terms of Fraser, Weary, Pajor, and Milligan's “integrative welfare model” (1997). |
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Department of Psychology, Simon Fraser University, Burnaby, British Columbia, Canada. zamoyska@shaw.ca |
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English |
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Edition |
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| ISSN |
1088-8705 |
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| Notes |
PMID:17970632 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
4363 |
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| Author |
Bates, L.A.; Byrne, R.W. |
| Title |
Creative or created: Using anecdotes to investigate animal cognition |
Type |
Journal Article |
| Year |
2007 |
Publication |
Methods |
Abbreviated Journal |
Methods |
| Volume |
42 |
Issue |
1 |
Pages |
12-21 |
| Keywords |
Anecdote; Creativity; Intelligence; Deception; Innovation; African elephant |
| Abstract |
In non-human animals, creative behaviour occurs spontaneously only at low frequencies, so is typically missed by standardised observational methods. Experimental approaches have tended to rely overly on paradigms from child development or adult human cognition, which may be inappropriate for species that inhabit very different perceptual worlds and possess quite different motor capacities than humans. The analysis of anecdotes offers a solution to this impasse, provided certain conditions are met. To be reliable, anecdotes must be recorded immediately after observation, and only the records of scientists experienced with the species and the individuals concerned should be used. Even then, interpretation of a single record is always ambiguous, and analysis is feasible only when collation of multiple records shows that a behaviour pattern occurs repeatedly under similar circumstances. This approach has been used successfully to study a number of creative capacities of animals: the distribution, nature and neural correlates of deception across the primate order; the occurrence of teaching in animals; and the neural correlates of several aptitudes--in birds, foraging innovation, and in primates, innovation, social learning and tool-use. Drawing on these approaches, we describe the use of this method to investigate a new problem, the cognition of the African elephant, a species whose sheer size and evolutionary distance from humans renders the conventional methods of comparative psychology of little use. The aim is both to chart the creative cognitive capacities of this species, and to devise appropriate experimental methods to confirm and extend previous findings. |
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1046-2023 |
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| Notes |
also special issue: Neurocognitive Mechanisms of Creativity: A Toolkit |
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no |
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Equine Behaviour @ team @ |
Serial |
6185 |
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| Author |
Bonnie, K.E.; Horner, V.; Whiten, A.; de Waal, F.B.M. |
| Title |
Spread of arbitrary conventions among chimpanzees: a controlled experiment |
Type |
Journal Article |
| Year |
2007 |
Publication |
Proceedings. Biological sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
| Volume |
274 |
Issue |
1608 |
Pages |
367-372 |
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| Abstract |
Wild chimpanzees (Pan troglodytes) have a rich cultural repertoire--traditions common in some communities are not present in others. The majority of reports describe functional, material traditions, such as tool use. Arbitrary conventions have received far less attention. In the same way that observations of material culture in wild apes led to experiments to confirm social transmission and identify underlying learning mechanisms, experiments investigating how arbitrary habits or conventions arise and spread within a group are also required. The few relevant experimental studies reported thus far have relied on cross-species (i.e. human-ape) interaction offering limited ecological validity, and no study has successfully generated a tradition not involving tool use in an established group. We seeded one of two rewarded alternative endpoints to a complex sequence of behaviour in each of two chimpanzee groups. Each sequence spread in the group in which it was seeded, with many individuals unambiguously adopting the sequence demonstrated by a group member. In one group, the alternative sequence was discovered by a low ranking female, but was not learned by others. Since the action-sequences lacked meaning before the experiment and had no logical connection with reward, chimpanzees must have extracted both the form and benefits of these sequences through observation of others. |
| Address |
Living Links, Yerkes National Primate Research Center, Atlanta, GA 30329, USA. kebonni@emory.edu |
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English |
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Edition |
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| ISSN |
0962-8452 |
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| Notes |
PMID:17164200 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
157 |
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