Records |
Author |
Noë, R.; de Waal, F.B.; van Hooff, J.A. |
Title |
Types of dominance in a chimpanzee colony |
Type |
Journal Article |
Year |
1980 |
Publication |
Folia primatologica; international journal of primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
Volume |
34 |
Issue |
1-2 |
Pages |
90-110 |
Keywords |
Agonistic Behavior; Animals; Animals, Zoo; *Behavior, Animal; Competitive Behavior; Factor Analysis, Statistical; Female; Hierarchy, Social; Male; *Pan troglodytes; *Social Dominance |
Abstract |
This study examines to what extent the concept of dominance can be used to describe the social structure of a group of semi-free-living chimpanzees. 15 behavioural variables, based on agonistic, competitive and affinitive behaviour patterns, have been compared with respect to the interindividual directions in which they occurred. In this analysis use was made of indices that reflect the position an individual occupies in the relationship structure. These indices were calculated per individual for all variables and subjected to factor analysis and cluster analysis. As a result, 13 of the variables could be grouped in three categories which have been labelled: (1) agonistic dominance; (2) bluff dominance, and (3) competitive dominance. Whereas the top positions in the hierarchies based on the first two closely related types of dominance were occupied by the adult males, the hierarchy based on the third type was headed by several adult females. |
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ISSN |
0015-5713 |
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Notes |
PMID:7439873 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
212 |
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Author |
Clutton-Brock, T.H.; Greenwood, P.J.; Powell, R.P. |
Title |
Ranks and relationships in Highland ponies and Highland Cows |
Type |
Journal Article |
Year |
1976 |
Publication |
Zeitschrift für Tierpsychologie |
Abbreviated Journal |
Z. Tierpsychol. |
Volume |
41 |
Issue |
2 |
Pages |
202-216 |
Keywords |
Agonistic Behavior; Animals; *Cattle; Female; Grooming; *Horses; Male; *Social Dominance; Spatial Behavior |
Abstract |
Recent studies of primates have questioned the importance of dominance hierarchies in groups living under natural conditions. In a herd of Highland ponies and one of Highland cattle grazing under free-range conditions on the Isle of Rhum (Inner Hebrides) well defined hierarchies were present. The provision of food produced a marked increase in the frequency of agonistic interactions but had no effect on the rank systems of the two herds. While rank was clearly important in affecting the distribution of agonistic interactions, it was poorly related to behaviour in non-agonistic situations. |
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English |
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ISSN |
0044-3573 |
ISBN |
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Notes |
PMID:961125 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
661 |
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Author |
Judge, P.G.; de Waal, F.B.; Paul, K.S.; Gordon, T.P. |
Title |
Removal of a trauma-inflicting alpha matriline from a group of rhesus macaques to control severe wounding |
Type |
Journal Article |
Year |
1994 |
Publication |
Laboratory animal science |
Abbreviated Journal |
Lab Anim Sci |
Volume |
44 |
Issue |
4 |
Pages |
344-350 |
Keywords |
*Aggression; Animals; Female; *Macaca mulatta; Male; *Monkey Diseases; *Social Dominance; Wounds and Injuries/epidemiology/prevention & control/*veterinary |
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) |
Address |
Yerkes Regional Primate Research Center, Emory University, Atlanta, GA 30329 |
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ISSN |
0023-6764 |
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Notes |
PMID:7983846 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
207 |
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Author |
Mader, D.R.; Price, E.O. |
Title |
Discrimination learning in horses: effects of breed, age and social dominance |
Type |
Journal Article |
Year |
1980 |
Publication |
Journal of animal science |
Abbreviated Journal |
J. Anim Sci. |
Volume |
50 |
Issue |
5 |
Pages |
962-965 |
Keywords |
Aging; Animals; *Discrimination Learning; Female; Horses/*physiology; *Social Dominance |
Abstract |
The discrimination learning ability of Quarter Horses and Thoroughbreds was compared by means of visual cues in a three-choice test with food as a reward. Quarter Horses learned significantly faster than Thoroughbreds, and learning progressed more rapidly for both breeds in a second discrimination task. Significant negative correlations were observed between age and rate of learning. Quarter Horses tended to be less reactive than Thoroughbreds, but individual emotional reactivity ratings and learning scores were not correlated. No correlation was found between social dominance and learning scores. Learning studies with horses may provide a better understanding of the behavioral traits that influence trainability in this species. |
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English |
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Edition |
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ISSN |
0021-8812 |
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Notes |
PMID:7390949 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
679 |
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Author |
de Waal, F.B. |
Title |
The integration of dominance and social bonding in primates |
Type |
Journal Article |
Year |
1986 |
Publication |
The Quarterly review of biology |
Abbreviated Journal |
Q Rev Biol |
Volume |
61 |
Issue |
4 |
Pages |
459-479 |
Keywords |
Animals; Female; Humans; Male; *Object Attachment; *Primates; *Social Dominance |
Abstract |
Social dominance is usually viewed from the perspective of intragroup competition over access to limited resources. The present paper, while not denying the importance of such competition, discusses the dominance concept among monkeys and apes in the context of affiliative bonding, social tolerance, and the reconciliation of aggressive conflicts. Two basic proximate mechanisms are supposed to provide a link between dominance and interindividual affiliation, namely, formalization of the dominance relationship (i.e., unequivocal communication of status), and conditional reassurance (i.e., the linkage of friendly coexistence to formalization of the relationship). Ritualized submission is imposed upon losers of dominance struggles by winners; losers are offered a “choice” between continued hostility or a tolerant relationship with a clearly signalled difference in status. If these two social mechanisms are lacking, aggression is bound to have dispersive effects. In their presence, aggression becomes a well-integrated, even constructive component of social life. In some higher primates this process of integration has reached the stage where status differences are strongly attenuated. In these species, sharing and trading can take the place of overt competition. The views underlying this “reconciled hierarchy” model are only partly new, as is evident from a review of the ethological literature. Many points are illustrated with data on a large semi-captive colony of chimpanzees (Pan troglodytes), particularly data related to striving for status, reconciliation behavior, and general association patterns. These observations demonstrate that relationships among adult male chimpanzees cannot be described in terms of a dichotomy between affiliative and antagonistic tendencies. Male bonding in this species has not been achieved by an elimination of aggression, but by a set of powerful buffering mechanisms that mitigate its effects. Although female chimpanzees do exhibit a potential for bonding under noncompetitive conditions, they appear to lack the buffering mechanisms of the males. |
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ISSN |
0033-5770 |
ISBN |
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Notes |
PMID:3543991 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
210 |
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Author |
Craig, J.V. |
Title |
Measuring social behavior: social dominance |
Type |
Journal Article |
Year |
1986 |
Publication |
Journal of animal science |
Abbreviated Journal |
J. Anim Sci. |
Volume |
62 |
Issue |
4 |
Pages |
1120-1129 |
Keywords |
Aggression; Agonistic Behavior; Animals; *Behavior, Animal; Cattle; Chickens; Competitive Behavior; Female; Horses; Male; *Social Dominance; Swine |
Abstract |
Social dominance develops more slowly when young animals are kept in intact peer groups where they need not compete for resources. Learned generalizations may cause smaller and weaker animals to accept subordinate status readily when confronted with strangers that would be formidable opponents. Sexual hormones and sensitivity to them can influence the onset of aggression and status attained. After dominance orders are established, they tend to be stable in female groups but are less so in male groups. Psychological influences can affect dominance relationships when strangers meet and social alliances within groups may affect relative status of individuals. Whether status associated with agonistic behavior is correlated with control of space and scarce resources needs to be determined for each species and each kind of resource. When such correlations exists, competitive tests and agonistic behavior associated with gaining access to scarce resources can be useful to the observer in learning about dominance relationships rapidly. Examples are given to illustrate how estimates of social dominance can be readily attained and some strengths and weaknesses of the various methods. |
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ISSN |
0021-8812 |
ISBN |
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Conference |
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Notes |
PMID:3519554 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
676 |
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Author |
Overdorff, D.J.; Erhart, E.M.; Mutschler, T. |
Title |
Does female dominance facilitate feeding priority in black-and-white ruffed lemurs (Varecia variegata) in southeastern Madagascar? |
Type |
Journal Article |
Year |
2005 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
Volume |
66 |
Issue |
1 |
Pages |
7-22 |
Keywords |
Agonistic Behavior; Animals; Eating/physiology; Feeding Behavior/*physiology; Female; Leadership; Lemuridae/*physiology; Madagascar; Male; Observation; Sex Factors; *Social Dominance |
Abstract |
Although many Malagasy lemurs are thought to be female dominant and to have female feeding priority, to date the relationship between these behaviors has been rigorously established only in Lemur catta, and other ways that females might achieve feeding priority have not been examined closely. Erhart and Overdorff [International Journal of Primatology 20:927-940, 1999] suggested that one way female primates achieve feeding priority is to initiate and lead groups to food, thereby gaining access to the food first and positively influencing their food intake compared to other group members. Here we describe female dominance patterns and potential measures of feeding priority in two groups of black-and-white ruffed lemurs (Varecia variegata) that were observed over a 15-month period in southeastern Madagascar. We predicted that the females would 1) be consistently dominant to males, 2) lead groups to food sources more often than males, and 3) have higher feeding rates compared to males when they arrived at food sources first. The results were dissimilar between the study groups. During the study, the oldest adult female in group 1 died. There was no evidence for female dominance in this group, and the remaining (likely natal) female did not lead the group more often, nor did she have a higher food intake than males. Group 1 dispersed shortly after the time frame reported here. In contrast, the resident female in group 2 was dominant to group males (based on agonistic interactions), led the group to food sources more often, and experienced a higher food intake when she arrived first at a food source. How these patterns vary over time and are influenced by the number of females in groups, group stability, food quality, and reproductive condition will be examined in future analyses. |
Address |
Department of Anthropology, University of Texas, Austin, Texas 78712-1086, USA. overdorff@mail.utexas.edu |
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ISSN |
0275-2565 |
ISBN |
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Notes |
PMID:15898069 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4110 |
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Author |
Izar, P.; Ferreira, R.G.; Sato, T. |
Title |
Describing the organization of dominance relationships by dominance-directed tree method |
Type |
Journal Article |
Year |
2006 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
Volume |
68 |
Issue |
2 |
Pages |
189-207 |
Keywords |
Animals; Cebus/physiology; *Models, Biological; *Social Dominance |
Abstract |
Methods to describe dominance hierarchies are a key tool in primatology studies. Most current methods are appropriate for analyzing linear and near-linear hierarchies; however, more complex structures are common in primate groups. We propose a method termed “dominance-directed tree.” This method is based on graph theory and set theory to analyze dominance relationships in social groups. The method constructs a transitive matrix by imposing transitivity to the dominance matrix and produces a graphical representation of the dominance relationships, which allows an easy visualization of the hierarchical position of the individuals, or subsets of individuals. The method is also able to detect partial and complete hierarchies, and to describe situations in which hierarchical and nonhierarchical principles operate. To illustrate the method, we apply a dominance tree analysis to artificial data and empirical data from a group of Cebus apella. |
Address |
Department of Experimental Psychology, University of Sao Paulo, Brazil. patrizar@usp.br |
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0275-2565 |
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PMID:16429416 |
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no |
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refbase @ user @ |
Serial |
723 |
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Author |
Heitor, F.; do Mar Oom, M.; Vicente, L. |
Title |
Social relationships in a herd of Sorraia horses Part I. Correlates of social dominance and contexts of aggression |
Type |
Journal Article |
Year |
2006 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
Volume |
73 |
Issue |
2 |
Pages |
170-177 |
Keywords |
Age Factors; *Aggression; Animals; Female; *Hierarchy, Social; Horses/*psychology; Male; Sex Factors; *Social Dominance; *Social Environment; Statistics, Nonparametric |
Abstract |
Factors related to dominance rank and the functions of aggression were studied in a herd of Sorraia horses, Equus caballus, under extensive management. Subjects were 10 adult mares 5-18 years old and a stallion introduced into the group for breeding. Dominance relationships among mares were clear, irrespective of rank difference, and remained stable after introduction of the stallion. The dominance hierarchy was significantly linear and rank was positively correlated with age and total aggressiveness. Higher-ranking mares received lower frequency and intensity of agonistic interactions. Nevertheless, higher-ranking dominants were not more likely to elicit submission from their subordinates than lower-ranking dominants. Neither close-ranking mares nor mares with less clear dominance relationships were more aggressive towards each other. Agonistic interactions seemed to be used more importantly in regulation of space than to obtain access to food or to reassert dominance relationships. Contexts of aggression were related to mare rank. The results suggest that dominance relationships based on age as a conventional criterion were established to reduce aggressiveness in a herd where the costs of aggression are likely to outweigh the benefits. |
Address |
Centro de Biologia Ambiental, Faculdade de Ciencias da Universidade de Lisboa, Campo Grande, Edificio C2, 1749-016 Lisboa, Portugal |
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ISSN |
0376-6357 |
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PMID:16815645 |
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no |
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refbase @ user @ |
Serial |
292 |
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Author |
Edwards, D.H.; Spitzer, N. |
Title |
6. Social dominance and serotonin receptor genes in crayfish |
Type |
Journal Article |
Year |
2006 |
Publication |
Current Topics in Developmental Biology |
Abbreviated Journal |
Curr Top Dev Biol |
Volume |
74 |
Issue |
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Pages |
177-199 |
Keywords |
Animals; Astacoidea/*genetics/physiology; Humans; Receptors, Serotonin/*genetics; Serotonin/physiology; *Social Dominance |
Abstract |
Gene expression affects social behavior only through changes in the excitabilities of neural circuits that govern the release of the relevant motor programs. In turn, social behavior affects gene expression only through patterns of sensory stimulation that produce significant activation of relevant portions of the nervous system. In crayfish, social interactions between pairs of animals lead to changes in behavior that mark the formation of a dominance hierarchy. Those changes in behavior result from changes in the excitability of specific neural circuits. In the new subordinate, circuits for offensive behavior become less excitable and those for defensive behavior become more excitable. Serotonin, which is implicated in mechanisms for social dominance in many animals, modulates circuits for escape and avoidance responses in crayfish. The modulatory effects of serotonin on the escape circuits have been found to change with social dominance, becoming excitatory in dominant crayfish and inhibitory in subordinates. These changes in serotonin's effects on escape affect the synaptic response to sensory input of a single cell, the lateral giant (LG) command neuron for escape. Moreover, these changes occur over a 2-week period and for the subordinate are reversible at any time following a reversal of the animal's status. The results have suggested that a persistent change in social status leads to a gradual change in the expression of serotonin receptors to a pattern that is more appropriate for the new status. To test that hypothesis, the expression patterns of crayfish serotonin receptors must be compared in dominant and subordinate animals. Two of potentially five serotonin receptors in crayfish have been cloned, sequenced, and pharmacologically characterized. Measurements of receptor expression in the whole CNS of dominant and subordinate crayfish have produced inconclusive results, probably because each receptor is widespread in the nervous system and is likely to experience opposite expression changes in different areas of the CNS. Both receptors have recently been found in identified neurons that mediate escape responses, and so the next step will be to measure their expression in these identified cells in dominant and subordinate animals. |
Address |
Department of Biology, Georgia State University, Atlanta, GA 30302, USA |
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ISSN |
0070-2153 |
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Notes |
PMID:16860668 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4364 |
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