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Author |
Judge, P.G.; de Waal, F.B.; Paul, K.S.; Gordon, T.P. |
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Title |
Removal of a trauma-inflicting alpha matriline from a group of rhesus macaques to control severe wounding |
Type |
Journal Article |
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Year  |
1994 |
Publication |
Laboratory animal science |
Abbreviated Journal |
Lab Anim Sci |
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Volume |
44 |
Issue |
4 |
Pages |
344-350 |
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Keywords |
*Aggression; Animals; Female; *Macaca mulatta; Male; *Monkey Diseases; *Social Dominance; Wounds and Injuries/epidemiology/prevention & control/*veterinary |
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Abstract |
Wounding in an 83-member group of rhesus macaques (Macaca mulatta) housed at the Yerkes Regional Primate Research Center Field Station became excessive to the point that intervention was deemed necessary. When observations indicated that three females from the group's alpha matriline were principally responsible for the wounding, the matriline (N = 7) was removed from the group. This study was conducted to document an atypical pattern of wounding in this group and to evaluate the effectiveness of removal as a procedure for controlling injuries. The aggression rates of 21 adult subjects and the wounds of all group members were recorded before and after the removal procedure and compared with those in a similar-sized group. Removing the alpha matriline did not alter aggression rates in the group or the rank order among the remaining matrilines. Aggression rates in the experimental group were also not significantly different from those in the comparison group before or after the removal. With the alpha matriline present, wounding levels in the group were significantly higher than those in the comparison group. After removal of the matriline, the frequency of wounds decreased significantly to levels similar to those of the comparison group. The pattern of excess wounding attributed to the extracted alpha females was idiosyncratic, involving removal of large patches of skin from the hindquarters of adult females or removal of the distal portion of the fingers, toes, or tail from juveniles.(ABSTRACT TRUNCATED AT 250 WORDS) |
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Yerkes Regional Primate Research Center, Emory University, Atlanta, GA 30329 |
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0023-6764 |
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PMID:7983846 |
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no |
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Call Number |
refbase @ user @ |
Serial |
207 |
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Author |
Judge, P.G.; de Waal, F.B. |
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Title |
Intergroup grooming relations between alpha females in a population of free-ranging rhesus macaques |
Type |
Journal Article |
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Year |
1994 |
Publication |
Folia primatologica; international journal of primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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Volume |
63 |
Issue |
2 |
Pages |
63-70 |
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Keywords |
Animals; Animals, Wild; Female; *Grooming; Macaca mulatta/*psychology; Male; Population Density; *Social Behavior |
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Abstract |
Intergroup affiliation among female rhesus macaques, Macaca mulatta, was examined in the captive free-ranging colony of Morgan Island, S.C., USA. The provisioned colony has many social groups (35) and is maintained at a relatively high population density (21 animals/ha) with a relatively low adult male to female ratio (1:8.8). Focal and ad libitum samples were collected on 32 adults (3 males and 29 females) from two groups. Although infrequent, grooming was observed between adult females from different groups, and alpha females were the main participants in these interactions. Colony records indicated that none of the intergroup grooms was between females formerly from a common group. Relations between familiar neighboring groups may be maintained by a combination of both affiliative and aggressive behavior. |
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Yerkes Regional Primate Research Center, Lawrenceville, Ga 30243 |
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0015-5713 |
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Notes |
PMID:7813977 |
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no |
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Call Number |
refbase @ user @ |
Serial |
208 |
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Author |
Zentall, T.R.; Sherburne, L.M. |
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Title |
Transfer of value from S+ to S- in a simultaneous discrimination |
Type |
Journal Article |
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Year |
1994 |
Publication |
Journal of experimental psychology. Animal behavior processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
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Volume |
20 |
Issue |
2 |
Pages |
176-183 |
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Keywords |
Animals; *Appetitive Behavior; Attention; Color Perception; Columbidae; *Discrimination Learning; Female; Male; Motivation; Orientation; Pattern Recognition, Visual; *Problem Solving; *Reinforcement Schedule; *Transfer (Psychology) |
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Abstract |
Value transfer theory has been proposed to account for transitive inference effects (L. V. Fersen, C. D. L. Wynne, J. D. Delius, & J. E. R. Staddon, 1991), in which following training on 4 simultaneous discriminations (A+B-, B+C-, C+D-, D+E-) pigeons show a preference for B over D. According to this theory, some of the value of reinforcement acquired by each S+ transfers to the S-. In the transitive inference experiment, C (associated with both reward and nonreward) can transfer less value to D than A (associated only with reward) can transfer to B. Support for value transfer theory was demonstrated in 2 experiments in which an S- presented in the context of a stimulus to which responses were always reinforced (S+) was preferred over an S- presented in the context of a stimulus to which responses were sometimes reinforced (S +/-). |
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Department of Psychology, University of Kentucky, Lexington 40506 |
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ISSN |
0097-7403 |
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Notes |
PMID:8189186 |
Approved |
no |
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Call Number |
refbase @ user @ |
Serial |
258 |
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Author |
Ishida, N.; Hirano, T.; Mukoyama, H. |
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Title |
Detection of aberrant alleles in the D-loop region of equine mitochondrial DNA by single-strand conformation polymorphism (SSCP) analysis |
Type |
Journal Article |
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Year |
1994 |
Publication |
Animal Genetics |
Abbreviated Journal |
Anim Genet |
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Volume |
25 |
Issue |
4 |
Pages |
287 |
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Keywords |
*Alleles; Animals; Base Sequence; *DNA, Mitochondrial; DNA, Single-Stranded/genetics; Female; Gene Frequency; Genomic Imprinting; Horses/*genetics; Male; Molecular Sequence Data; Pedigree; *Polymorphism, Genetic |
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Laboratory of Molecular and Cellular Biology, Japan Racing Association, Tokyo |
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English |
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ISSN |
0268-9146 |
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Notes |
PMID:7985852 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2213 |
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Author |
McComb, K.; Clutton-Brock, T. |
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Title |
Is mate choice copying or aggregation responsible for skewed distributions of females on leks? |
Type |
Journal Article |
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Year |
1994 |
Publication |
Proceedings. Biological sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
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Volume |
255 |
Issue |
1342 |
Pages |
13-19 |
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Keywords |
Animals; Deer/*physiology; Estrus/physiology; Female; Male; Phenotype; Sexual Behavior, Animal/*physiology; Territoriality |
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Abstract |
In several lek-breeding populations of birds and mammals, females arriving on leks tend to join males that already have females in their territories. This might occur either because females have an evolved preference for mating with males that are attractive to other females, or because they join groups of other females to obtain greater safety from predation or dangerous harassment by males. We have previously used controlled experiments to show that oestrous fallow deer females join males with established harems because they are attracted to female groups rather than to the males themselves. Here we demonstrate that the preference for males with females over males without females is specific to oestrous females and weak or absent in anoestrous ones, and that it is not associated with a preference for mating with males that have previously been seen to mate with other females. Furthermore, oestrous females given the choice between males that do not already have females with them show no significant preference for antlered over deantlered males or for older males over younger ones. We conclude that female attraction to other females on the lek is likely to be an adaptation to avoiding harassment in mixed-sex herds. In this situation, a male's ability to maintain the cohesion of his harem may be the principal cause of variation in mating success between males. |
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Department of Zoology, University of Cambridge, U.K |
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ISSN |
0962-8452 |
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Notes |
PMID:8153135 |
Approved |
no |
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Call Number |
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Serial |
1823 |
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Author |
Andrews, F.M.; Ralston, S.L.; Sommardahl, C.S.; Maykuth, P.L.; Green, E.M.; White, S.L.; Williamson, L.H.; Holmes, C.A.; Geiser, D.R. |
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Title |
Weight, water, and cation losses in horses competing in a three-day event |
Type |
Journal Article |
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Year |
1994 |
Publication |
Journal of the American Veterinary Medical Association |
Abbreviated Journal |
J Am Vet Med Assoc |
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Volume |
205 |
Issue |
5 |
Pages |
721-724 |
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Keywords |
Animals; Body Water/*metabolism; Body Weight/*physiology; Exertion/*physiology; Female; Horses/blood/*metabolism; Male; Physical Conditioning, Animal/physiology; Physical Endurance/physiology; Potassium/*blood; Sodium/*blood |
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Abstract |
Body weight of 48 horses competing in a 3-day event was measured the day before the event (baseline), following the dressage phase of the event (day 1), after the endurance phases of the event (day 2), and 18 to 24 hours after the endurance phases (day 3). Plasma sodium and potassium concentrations were measured the evening before, immediately after, and 10 minutes after the endurance phases. Total body water, water loss, and net exchangeable cation loss were then calculated. Body weight and total body water were significantly decreased, compared with baseline values, at all times during the event, and significant water loss was detected. The largest changes were recorded after the endurance phases of the event. Water deficits were still detected 18 to 24 hours after the endurance phases of the event. Mean plasma sodium concentration was significantly increased immediately after the endurance phases of the event, compared with concentration measured the evening before, and remained increased after the 10-minute recovery period, presumably because of dehydration. Mean plasma potassium concentration was significantly increased immediately after the endurance phases of the event, compared with concentration measured the evening before, but was not increased after the 10-minute recovery period. |
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Address |
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville 37901-1071 |
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English |
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ISSN |
0003-1488 |
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Notes |
PMID:7989242 |
Approved |
no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
3745 |
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Author |
Clayton, H.M. |
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Title |
Comparison of the stride kinematics of the collected, working, medium and extended trot in horses |
Type |
Journal Article |
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Year |
1994 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
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Volume |
26 |
Issue |
3 |
Pages |
230-234 |
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Keywords |
Analysis of Variance; Animals; Biomechanics; Female; Forelimb/anatomy & histology/physiology; Gait/*physiology; Hindlimb/anatomy & histology/physiology; Horses/anatomy & histology/*physiology; Locomotion/physiology; Male; Motion Pictures |
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Abstract |
Highly-trained dressage horses were studied to test the hypothesis that stride length is altered independently of stride duration in the transitions between the collected, working, medium and extended trot. Six well-trained dressage horses were filmed at a frame rate of 150 frames/s performing the collected, working, medium and extended trots in a sand arena. Temporal, linear and angular data were extracted from the films, with 4 strides being analysed for each horse and gait type. There were no significant asymmetries between the left and rights limbs or diagonals when data from the whole group were pooled, but 3 horses showed asymmetries in one or more variables (P < 0.01). Analysis of variance and post-hoc tests indicated that the speed increased significantly (P < 0.01) from the collected (3.20 m/s) to the working (3.61 m/s) to the medium (4.47 m/s) to the extended (4.93 m/s) trot. The increases in speed were associated with a significant increase in stride length from 250 cm in the collected trot, to 273 cm in the working trot, 326 cm in the medium trot and 355 cm in the extended trot (P < 0.01). The lengthening of the stride was a result of increases between each gait type in the over-reach distance, whereas the diagonal distance was significantly longer in the extended than the collected trot only (P < 0.01). The stride duration tended to decrease as speed increased, and the difference became significant between the collected and extended trots (P < 0.01). |
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Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada |
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English |
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Series Volume |
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Edition |
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ISSN |
0425-1644 |
ISBN |
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Notes |
PMID:8542844 |
Approved |
no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
3746 |
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Author |
McGreevy, P.D.; Richardson, J.D.; Nicol, C.J.; Lane, J.G. |
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Title |
Radiographic and endoscopic study of horses performing an oral based stereotypy |
Type |
Journal Article |
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Year |
1995 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
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Volume |
27 |
Issue |
2 |
Pages |
92-95 |
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Keywords |
Animals; Endoscopy/*veterinary; Esophagus/physiopathology/radiography; Female; Fluoroscopy/veterinary; Horse Diseases/physiopathology/*psychology/radiography; Horses; Male; Pharynx/physiopathology/radiography; *Stereotyped Behavior; Video Recording |
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Abstract |
There is confusion in the veterinary literature concerning the definition of oral based stereotypies in the horse. This study reports the use of fluoroscopy and endoscopy during cribbiting/wind-sucking in afflicted horses. This permitted observations of movements of the pharyngeal and oesophageal tissues and of the air column within during the stereotypic behaviour. The findings reported show that the sequence of events during crib-biting/wind-sucking is not related to deglutition and that air is not swallowed to the stomach. Transient dilation of the upper oesophagus was recorded and the characteristic noise of wind-sucking coincided with the in-rush of air through the cricopharynx. The oesophageal distension was relieved when the air returned to the pharynx although small quantities passed caudally. It is proposed that the role of contraction of the strap muscles of the neck is to create a pressure gradient in the soft tissues surrounding the oesophagus which provokes movement of air from the pharynx into the oesophagus. The findings suggest that the definitions currently used in the sale of horses are in need of revision. |
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Address |
Department of Clinical Veterinary Science, University of Bristol, Langford, UK |
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English |
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ISSN |
0425-1644 |
ISBN |
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Notes |
PMID:7607156 |
Approved |
no |
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Call Number |
refbase @ user @ |
Serial |
90 |
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Author |
de Waal, F.B. |
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Title |
Bonobo sex and society |
Type |
Journal Article |
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Year |
1995 |
Publication |
Scientific American |
Abbreviated Journal |
Sci Am |
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Volume |
272 |
Issue |
3 |
Pages |
82-88 |
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Keywords |
Animals; Evolution; Female; Hominidae; Humans; Male; Pan troglodytes/*physiology; Sexual Behavior, Animal/*physiology; Social Behavior |
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Abstract |
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Address |
Yerkes Regional Primate Research Center, Atlanta |
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English |
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ISSN |
0036-8733 |
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Notes |
PMID:7871411 |
Approved |
no |
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Call Number |
refbase @ user @ |
Serial |
206 |
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Author |
Cheney, D.L.; Seyfarth, R.M.; Silk, J.B. |
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Title |
The responses of female baboons (Papio cynocephalus ursinus) to anomalous social interactions: evidence for causal reasoning? |
Type |
Journal Article |
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Year |
1995 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
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Volume |
109 |
Issue |
2 |
Pages |
134-141 |
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Keywords |
Animals; Attention; Auditory Perception; *Awareness; *Concept Formation; *Dominance-Subordination; Fear; Female; Hierarchy, Social; Papio/*psychology; *Social Behavior; Social Environment; Vocalization, Animal |
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Abstract |
Baboons' (Papio cynocephalus ursinus) understanding of cause-effect relations in the context of social interactions was examined through use of a playback experiment. Under natural conditions, dominant female baboons often grunt to more subordinate mothers when interacting with their infants. Mothers occasionally respond to these grunts by uttering submissive fear barks. Subjects were played causally inconsistent call sequences in which a lower ranking female apparently grunted to a higher ranking female, and the higher ranking female apparently responded with fear barks. As a control, subjects heard a sequence made causally consistent by the inclusion of grunts from a 3rd female that was dominant to both of the others. Subjects responded significantly more strongly to the causally inconsistent sequences, suggesting that they recognized the factors that cause 1 individual to give submissive vocalizations to another. |
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Address |
Department of Biology, University of Pennsylvania, Philadelphia 19104, USA |
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English |
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Abbreviated Series Title |
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ISSN |
0735-7036 |
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Notes |
PMID:7758289 |
Approved |
no |
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Call Number |
refbase @ user @ |
Serial |
348 |
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| Permanent link to this record |
