| Records |
| Author |
Arluke, A. |
| Title |
The use of dogs in medical and veterinary training: understanding and approaching student uneasiness |
Type |
Journal Article |
| Year |
2004 |
Publication |
Journal of Applied Animal Welfare Science : JAAWS |
Abbreviated Journal |
J Appl Anim Welf Sci |
| Volume |
7 |
Issue |
3 |
Pages |
197-204 |
Keywords  |
*Animal Experimentation; Animals; *Animals, Laboratory; Cadaver; Comprehension; Dogs; Education, Veterinary/*ethics/*methods; Humans; Massachusetts; Schools, Veterinary; Students, Medical/*psychology; Biomedical and Behavioral Research |
| Abstract |
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| Address |
Tajen Institute of Technology, Taiwan. a.arluke@neu.edu |
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English |
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Edition |
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| ISSN |
1088-8705 |
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| Notes |
PMID:15498727; KIE: KIE Bib: animal experimentation |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2755 |
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| Author |
Xitco, M.J.J.; Gory, J.D.; Kuczaj, S.A. 2nd |
| Title |
Dolphin pointing is linked to the attentional behavior of a receiver |
Type |
Journal Article |
| Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
7 |
Issue |
4 |
Pages |
231-238 |
| Keywords |
*Animal Communication; Animals; *Association Learning; *Attention; Dolphins/*psychology; *Gestures; Humans; Imitative Behavior; Male; Orientation; Posture; Species Specificity |
| Abstract |
In 2001, Xitco et al. (Anim Cogn 4:115-123) described spontaneous behaviors in two bottlenose dolphins (Tursiops truncatus) that resembled pointing and gaze alternation. The dolphins' spontaneous behavior was influenced by the presence of a potential receiver, and the distance between the dolphin and the receiver. The present study adapted the technique of Call and Tomasello [(1994) J Comp Psychol 108:307-317], used with orangutans to test the effect of the receiver's orientation on pointing in these same dolphins. The dolphins directed more points and monitoring behavior at receivers whose orientation was consistent with attending to the dolphins. The results demonstrated that the dolphins' pointing and monitoring behavior, like that of apes and infants, was linked to the attentional behavior of the receiver. |
| Address |
Space and Naval Warfare Systems Center, Code 235, 53560 Hull Street, CA 92152-5001, San Diego, USA. mark.xitco@navy.mil |
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English |
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Series Issue |
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Edition |
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| ISSN |
1435-9448 |
ISBN |
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Conference |
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| Notes |
PMID:15088149 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2526 |
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| Author |
Kutsukake, N.; Castles, D.L. |
| Title |
Reconciliation and post-conflict third-party affiliation among wild chimpanzees in the Mahale Mountains, Tanzania |
Type |
Journal Article |
| Year |
2004 |
Publication |
Primates |
Abbreviated Journal |
Primates |
| Volume |
45 |
Issue |
3 |
Pages |
157-165 |
| Keywords |
*Agonistic Behavior; Animals; *Conflict (Psychology); Female; Male; Observation; Pan troglodytes/*psychology; Sex Factors; *Social Behavior; Tanzania; Time Factors |
| Abstract |
This study investigated post-conflict (PC) behavior among wild chimpanzees (Pan troglodytes) of the M-group in the Mahale Mountains, Tanzania, and examined what types of behavior characterize the PC situation in this group, and the factors that influence the occurrence of PC affiliation between opponents soon after the end of an aggressive conflict (i.e., reconciliation). We found that the opponents affiliated selectively soon after the end of aggression, suggesting that reconciliation occurred in this group. The mean individual corrected conciliatory tendency (CCT) (Veenema et al. 1994 in Behav Proc 31:29-38) was 14.4%, which is similar to or lower than frequencies observed in studies of captive and wild chimpanzees. The valuable relationship hypothesis predicts that the CCT is higher among individuals who share valuable relationships (e.g., males or affiliative dyads) than among individuals who do not (e.g., females or less-associative dyads). However, the analysis based on data for aggression between unrelated individuals (including one incident between an adult and non-adult) and aggression between unrelated adults, did not uncover this difference. Affiliation by a previously uninvolved individual with the victim (“consolation”) and with the aggressor (“appeasement”) occurred more frequently following aggression than in the control condition. The results are compared with previous studies of captive and wild chimpanzees. |
| Address |
Department of Cognitive and Behavioral Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan. kutsu@darwin.c.u-tokyo.ac.jp |
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English |
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Edition |
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| ISSN |
0032-8332 |
ISBN |
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| Notes |
PMID:15114477 |
Approved |
no |
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refbase @ user @ |
Serial |
2883 |
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| Author |
Dubois, F.; Giraldeau, L.-A.; Hamilton, I.M.; Grant, J.W.A.; Lefebvre, L. |
| Title |
Distraction sneakers decrease the expected level of aggression within groups: a game-theoretic model |
Type |
Journal Article |
| Year |
2004 |
Publication |
The American Naturalist |
Abbreviated Journal |
Am Nat |
| Volume |
164 |
Issue |
2 |
Pages |
E32-45 |
| Keywords |
*Aggression; Animals; Behavior, Animal/*physiology; Columbidae/*physiology; Competitive Behavior; Cooperative Behavior; *Game Theory; Hawks/*physiology; Models, Biological |
| Abstract |
Hawk-dove games have been extensively used to predict the conditions under which group-living animals should defend their resources against potential usurpers. Typically, game-theoretic models on aggression consider that resource defense may entail energetic and injury costs. However, intruders may also take advantage of owners who are busy fighting to sneak access to unguarded resources, imposing thereby an additional cost on the use of the escalated hawk strategy. In this article we modify the two-strategy hawk-dove game into a three-strategy hawk-dove-sneaker game that incorporates a distraction-sneaking tactic, allowing us to explore its consequences on the expected level of aggression within groups. Our model predicts a lower proportion of hawks and hence lower frequencies of aggressive interactions within groups than do previous two-strategy hawk-dove games. The extent to which distraction sneakers decrease the frequency of aggression within groups, however, depends on whether they search only for opportunities to join resources uncovered by other group members or for both unchallenged resources and opportunities to usurp. |
| Address |
Departement des Sciences Biologiques, Universite du Quebec a Montreal, Case postale 8888 Succursale Centre-Ville, Montreal, Quebec H3C 3P8, Canada. frede_dubois@yahoo.fr |
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English |
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Edition |
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| ISSN |
1537-5323 |
ISBN |
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Conference |
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| Notes |
PMID:15278850 |
Approved |
no |
| Call Number |
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Serial |
2130 |
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| Author |
Hausberger, M.; Bruderer, C.; Le Scolan, N.; Pierre, J.-S. |
| Title |
Interplay between environmental and genetic factors in temperament/personality traits in horses (Equus caballus) |
Type |
Journal Article |
| Year |
2004 |
Publication |
Journal of Comparative Psychology |
Abbreviated Journal |
J Comp Psychol |
| Volume |
118 |
Issue |
4 |
Pages |
434-446 |
| Keywords |
*Affect; Animals; Behavior, Animal/*physiology; *Environment; Female; Horses/*psychology; Learning; Male; Memory/physiology |
| Abstract |
The aim of the present study was to broach the question of the relative influence of different genetic and environmental factors on different temperament/personality traits of horses (Equus caballus). The researchers submitted 702 horses to standardized experimental tests and investigated 9 factors, either genetic or environmental. Genetic factors, such as sire or breed, seemed to influence more neophobic reactions, whereas environmental factors, such as the type of work, seemed to play a more dominant role in reactions to social separation or learning abilities. Additive effects were evident, showing how environmental factors may modulate behavioral traits. This study constitutes a first step toward understanding the relative weights of genetic factors and how the environment may intervene in determining individual behavioral characteristics. |
| Address |
Ethologie-Evolution-Ecologie, Universite de Rennes 1, Rennes, France. Martine.Hausberger@univ-rennes1.fr |
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Thesis |
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Place of Publication |
Washington, D.C. : 1983 |
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English |
Summary Language |
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Series Issue |
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Edition |
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| ISSN |
0735-7036 |
ISBN |
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Conference |
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| Notes |
PMID:15584780 |
Approved |
no |
| Call Number |
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Serial |
1897 |
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| Author |
Pinchbeck, G.L.; Clegg, P.D.; Proudman, C.J.; Morgan, K.L.; French, N.P. |
| Title |
A prospective cohort study to investigate risk factors for horse falls in UK hurdle and steeplechase racing |
Type |
Journal Article |
| Year |
2004 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
36 |
Issue |
7 |
Pages |
595-601 |
| Keywords |
*Accidental Falls/mortality/statistics & numerical data; Age Factors; Animal Welfare; Animals; Athletic Injuries/epidemiology/etiology/mortality/*veterinary; Cohort Studies; Great Britain; Horses/*injuries; Logistic Models; Odds Ratio; Prospective Studies; Questionnaires; Rain; Risk Factors; Safety; Sports |
| Abstract |
REASONS FOR PERFORMING STUDY: Equine fatalities during racing continue to be a major welfare concern and falls at fences are responsible for a proportion of all equine fatalities recorded on racecourses. OBJECTIVES: To identify and quantify risk factors for horse falls in National Hunt (NH) racing and to report the frequency of falling and falling-associated fatalities. METHODS: A prospective cohort study was conducted on 2879 horse starts in hurdle and steeplechase races on 6 UK racecourses. Any horse that suffered a fall at a steeplechase or hurdle fence during the race was defined as a case. Data were obtained by interview and observations in the parade ring and from commercial databases. Multivariable logistic regression models, allowing for clustering at the level of the track, were used to identify the relationship between variables and the risk of falling. RESULTS: There were 124 falling cases (32 in hurdling and 92 in steeplechasing) identified. The injury risk of fallers was 8.9% and fatality risk 6.5%. Duration of journey to the racecourse, behaviour in the parade ring and weather at the time of the race were associated with falling in both hurdle and steeplechase racing. Age, amount of rainfall and going were also associated with falling in steeplechase racing. CONCLUSIONS: Falls at fences are significant contributors to equine fatalities during NH racing. Potentially modifiable risk factors identified were the condition of track surfaces and journey time to the racecourse. POTENTIAL RELEVANCE: It is hoped that information from this study may be used in future interventions to improve horse and jockey safety in racing. The study has also identified areas requiring further research, such as equine behaviour and its effect on racing performance, and the effect of light conditions on jumping ability. |
| Address |
Department of Veterinary Clinical Science, University of Liverpool, Leahurst, Neston, Wirral CH64 7TE, UK |
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English |
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Edition |
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0425-1644 |
ISBN |
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| Notes |
PMID:15581324 |
Approved |
no |
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Serial |
1898 |
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| Author |
Witte, T.H.; Knill, K.; Wilson, A.M. |
| Title |
Determination of peak vertical ground reaction force from duty factor in the horse (Equus caballus) |
Type |
Journal Article |
| Year |
2004 |
Publication |
The Journal of Experimental Biology |
Abbreviated Journal |
J Exp Biol |
| Volume |
207 |
Issue |
Pt 21 |
Pages |
3639-3648 |
| Keywords |
*Acceleration; Animals; Biomechanics; Forelimb/physiology; *Gait; Hindlimb/physiology; Horses/*physiology; Locomotion/*physiology; Telemetry; Time Factors |
| Abstract |
Measurement of peak vertical ground reaction force (GRFz) from multiple limbs simultaneously during high-speed, over-ground locomotion would enhance our understanding of the locomotor mechanics of cursorial animals. Here, we evaluate the accuracy of predicting peak GRFz from duty factor (the proportion of the stride for which the limb is in contact with the ground). Foot-mounted uniaxial accelerometers, combined with UHF FM telemetry, are shown to be practical and accurate for the field measurement of stride timing variables, including duty factor. Direct comparison with the force plate produces a mean error of 2.3 ms and 3.5 ms for the timing of foot on and foot off, respectively, across all gaits. Predictions of peak GRFz from duty factor show mean errors (with positive values indicating an overestimate) of 0.8+/-0.04 N kg(-1) (13%; N=42; mean +/- S.E.M.) at walk, -0.3+/-0.06 N kg(-1) (3%; N=75) at trot, -2.3+/-0.27 N kg(-1) (16%; N=18) for the non-lead limb at canter and +2.1+/-0.7 N kg(-1) (19%; N=9) for the lead limb at canter. The substantial over- and underestimate seen at canter, in the lead and non-lead limbs, respectively, is attributed to the different functions performed by the two limbs in the asymmetrical gaits. The difference in load experienced by the lead and non-lead limbs decreased with increasing speed. |
| Address |
Structure and Motion Lab, The Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire, AL9 7TA, UK |
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English |
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0022-0949 |
ISBN |
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| Notes |
PMID:15371472 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
3658 |
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Santamaria, S.; Bobbert, M.E.; Back, W.; Barneveld, A.; van Weeren, P.R. |
| Title |
Variation in free jumping technique within and among horses with little experience in show jumping |
Type |
Journal Article |
| Year |
2004 |
Publication |
American Journal of Veterinary Research |
Abbreviated Journal |
Am J Vet Res |
| Volume |
65 |
Issue |
7 |
Pages |
938-944 |
| Keywords |
*Acceleration; Analysis of Variance; Animals; Biomechanics; Forelimb/physiology; Gait/*physiology; Hindlimb/physiology; Horses/*physiology; Locomotion/*physiology; Models, Biological; Video Recording |
| Abstract |
OBJECTIVE: To quantify variation in the jumping technique within and among young horses with little jumping experience, establish relationships between kinetic and kinematic variables, and identify a limited set of variables characteristic for detecting differences in jumping performance among horses. ANIMALS: Fifteen 4-year-old Dutch Warmblood horses. PROCEDURE: The horses were raised under standardized conditions and trained in accordance with a fixed protocol for a short period. Subsequently, horses were analyzed kinematically during free jumping over a fence with a height of 1.05 m. RESULTS: Within-horse variation in all variables that quantified jumping technique was smaller than variation among horses. However, some horses had less variation than others. Height of the center of gravity (CG) at the apex of the jump ranged from 1.80 to 2.01 m among horses; this variation could be explained by the variation in vertical velocity of the CG at takeoff (r, 0.78). Horses that had higher vertical velocity at takeoff left the ground and landed again farther from the fence, had shorter push-off phases for the forelimbs and hind limbs, and generated greater vertical acceleration of the CG primarily during the hind limb push-off. However, all horses cleared the fence successfully, independent of jumping technique. CONCLUSIONS AND CLINICAL RELEVANCE: Each horse had its own jumping technique. Differences among techniques were characterized by variations in the vertical velocity of the CG at takeoff. It must be determined whether jumping performance later in life can be predicted from observing free jumps of young horses. |
| Address |
Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 12, NL-3584 CM Utrecht, The Netherlands |
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English |
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0002-9645 |
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| Notes |
PMID:15281652 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
3772 |
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| Author |
Miklósi, Á.; Topál, J.; Csányi, V. |
| Title |
Comparative social cognition: what can dogs teach us? |
Type |
Journal Article |
| Year |
2004 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
67 |
Issue |
6 |
Pages |
995-1004 |
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| Abstract |
Research in comparative social cognition addresses how challenges of social living have formed the cognitive structures that control behaviours involved in communication, social learning and social understanding. In contrast to the traditional psychological approach, recent investigations take both evolutionary and functional questions into account, but the main emphasis is still on the mechanisms of behaviour. Although in traditional research `comparative' meant mainly comparisons between humans and other primates, ethological influences have led to a broadening of the spectrum of species under study. In this review, we evaluated how the study of dogs broadens our understanding of comparative social cognition. In the early days of ethology, dogs enjoyed considerable interest from ethologists, but during the last 20 years, dogs have rarely been studied by ethological methods. Through a complex evolutionary process, dogs became adapted for living in human society; therefore, the human environment and social setting now represents a natural ecological niche for this species. We have evidence that dogs have been selected for adaptations to human social life, and that these adaptations have led to marked changes in their communicative, social, cooperative and attachment behaviours towards humans. Until now, the study of dogs was hindered by the view that they represent an `artificial' species, but by accepting that dogs are adapted to their niche, as are other `natural' species, comparative investigations can be put into new light. |
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refbase @ user @ |
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406 |
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RHO, J.R.; SRYGLEY, R.B.; CHOE, J.C. |
| Title |
Behavioral ecology of the Jeju pony (Equus caballus): Effects of maternal age, maternal dominance hierarchy and foal age on mare aggression |
Type |
Journal Article |
| Year |
2004 |
Publication |
Ecological Research |
Abbreviated Journal |
Ecol. Res. |
| Volume |
19 |
Issue |
1 |
Pages |
55-63 |
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| Abstract |
On Jeju Island, Korea, dominance hierarchy and maternal care according to maternal age were studied in a herd of Jeju ponies (Equus caballus), consisting of 73 mares, their foals and one stallion. Dominance ranks were nearly linear and increased significantly with the age of mares. Most aggressive encounters involved mares under 5 years old. Mares under the age of 5 years have apparently not established their rank. The mean frequency of aggressive actions of mares per hour increased significantly as the day of parturition approached. Aggressive actions of mares with foals decreased significantly as their foals aged. The overall frequency of aggression of mares with foals also decreased significantly with the age of the mares. Our results suggest that the cost of maternal care is lower for older, more dominant mares than for subordinate ones. |
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refbase @ user @ |
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459 |
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