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| Author |
Rowell, T.E. |
| Title |
The concept of social dominance |
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Journal Article |
| Year |
1974 |
Publication |
Behavioral Biology |
Abbreviated Journal |
Behav Biol |
| Volume |
11 |
Issue |
2 |
Pages |
131-154 |
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Dominance has been assumed to be a quality of overwhelming social importance but satisfactory definitions and measures have not been devised. As an indication of predictability of outcome of interaction between animals, it can be explained in terms of ordinary learning processes previous to and during a specific relationship. Agonistic interactions are usually determined and often initiated by the subordinate's behavior, and subordinate behavior is correlated with physiological changes, so that a subordination hierarchy is probably a more useful concept than a dominance hierarchy. Hierarchies develop in stressful conditions, especially in captivity where animals with overresponsive adrenal cortices are at a selective disadvantage. In wild groups hierarchies are tenuous or absent and stress-responsive members are probably advantageous to a group. Group defense and leadership roles are not correlated with rank, but policing is characteristic of high-ranking animals in species where it occurs. There is no evidence that formation of a hierarchy reduces aggression--hierarchies are actually associated with high rates of aggression in primate groups. There is no conclusive evidence that high ranking males have greater overall reproductive success, and an alternative hypothesis that adult males are sexually active for a relatively short stage of their lives fits existing data equally well. |
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2040 |
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Hrdy, S.B. |
| Title |
Male-male competition and infanticide among the langurs (Presbytis entellus) of Abu, Rajasthan |
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Journal Article |
| Year |
1974 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
| Volume |
22 |
Issue |
1 |
Pages |
19-58 |
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Aggression; Animals; Animals, Newborn; Coitus; *Competitive Behavior; Estrus; Feeding Behavior; Female; *Haplorhini; Homing Behavior; Humans; India; Infanticide; Leadership; Male; Maternal Behavior; Population Density; Pregnancy; Rain; Seasons; Sex Factors; Sexual Behavior, Animal; Social Behavior; Temperature; Vocalization, Animal |
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English |
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0015-5713 |
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PMID:4215710 |
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2051 |
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Dunbar, R.I.M. |
| Title |
Observations on the ecology and social organization of the green monkey,Cercopithecus sabaeus, in Senegal |
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Journal Article |
| Year |
1974 |
Publication |
Primates |
Abbreviated Journal |
Primates |
| Volume |
15 |
Issue |
4 |
Pages |
341-350 |
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The green monkey,Cercopithecus sabaeus, has not been studied in its natural habitat in West Africa. This paper reports observations made during a 3-month study in Senegal. Green monkeys live in multimale groups averaging some 12 individuals. Information is given on home range size, use of habitat, daily activity patterns, diet and birth seasonality. Social organization is discussed and data are given on the relationships between age-sex classes, aggression and leadership. Inter-group relations are discussed and it is suggested that groups defend their ranges as territories. The ecology and social organization of green monkeys is compared with that of populations ofC. aethiops studied in East Africa and they are found to be similar. |
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2062 |
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Powell, G.V.N. |
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Experimental analysis of the social value of flocking by starlings (Sturnus vulgaris) in relation to predation and foraging |
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Journal Article |
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1974 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
22 |
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2 |
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501-505 |
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In groups of ten, indidual starlings, Sturnus vulgaris, spent significantly less time in surveillance than did individuals in smaller groups and responded more quickly than single birds to a flying model hawk. Captive starlings in flocks reduce their individual surveillance efforts, but their combined efforts still enable them to be more effective than single birds in the detection of predators. Foraging behaviour of flocks was observed by placing single starlings with groups of tricoloured blackbirds, Agelaius tricolor; the starlings reduced the time they devoted to surveillance at the same rate as if they were with other starlings. |
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2147 |
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| Author |
Richards, S.M. |
| Title |
The concept of dominance and methods of assessment |
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Journal Article |
| Year |
1974 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
22 |
Issue |
Part 4 |
Pages |
914-930 |
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The arrangement of a social group of individuals into a dominance hierarchy is useful in studies of social behaviour only if a wide variety of social interactions can then be predicted. However, definitions of dominance commonly used are numerous and confused. To assess the usefulness of the concept of dominance, studies were made on six breeding groups of rhesus macaques (Macaca mulata) to determine whether different measures of dominance agreed with each other. The measures tested in this study were found to agree. It is therefore suggested that dominance is a useful intervening variable. Possible reasons for the reported lack of correlation between some measures used by other authors are discussed. |
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2154 |
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Syme, G.J.; Pollard, J.S.; Syme, L.A.; Reid, R.M. |
| Title |
An analysis of the limited access measure of social dominance in rats |
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Journal Article |
| Year |
1974 |
Publication |
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| Volume |
22 |
Issue |
2 |
Pages |
486-500 |
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The limited access situation in which only one of two or more subjects can gain access to a reward during a restricted time-period is an accepted measure of dominance in the rat. This study attempts to validate the technique by establishing the relationship between individual and competitive performance in order to determine whether `priority of access' has been measured. The generality of the competitive orders is examined by altering the competitive response while retaining the same reward. In view of the data collected for both time and weight-gain measures in food and water competition it is doubtful whether the limited access competitive technique can be considered a valid measure of dominance for the laboratory rat. |
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Equine Behaviour @ team @ |
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2187 |
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| Author |
Syme, G.J. |
| Title |
Competitive orders as measures of social dominance |
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Journal Article |
| Year |
1974 |
Publication |
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22 |
Issue |
Part 4 |
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931-940 |
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The use of competitive orders as measures of social dominance is examined, the conclusion being that such use is based on the assumption of the unidimensionality of social dominance. Evidence is presented to show that this is not always the case. Consequently it is suggested that each competitive order must be validated in terms of its measurement of priority of access and response requirements (internal validity) as well as its generality (external validity) before it can be regarded as a dominance measure. Problems of the validity of aggression orders as measures of social dominance are also examined along with their relationship to competitive orders. |
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Equine Behaviour @ team @ |
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2188 |
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Joubert, E. |
| Title |
Size and growth as shown by pre- and post-natal development of the Hartmann zebra Equus zebra hartmannae. |
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Journal Article |
| Year |
1974 |
Publication |
Madoqua |
Abbreviated Journal |
Madoqua |
| Volume |
1 |
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8 |
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Equine Behaviour @ team @ |
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2305 |
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Geist, V. |
| Title |
On the Relationship of Social Evolution and Ecology in Ungulates |
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Journal Article |
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1974 |
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Amer. Zool. |
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14 |
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1 |
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205-220 |
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Much of the social behavior and organization of ungulates can be related to ecological parameters such as fiber content of forage, plant productivity, plant biomass, plant species diversity, productivity gradients, temporal and spatial fluctuations in productivity, habitat stability, food dispersion, three-dimensional structure of habitat, colonization, and predator density and diversity. These ecological variables can be linked via individual natural selection with the species' anti-predator strategies, emphasis on different channels of communication, relative frequency of damaging and non-damaging overt aggression, gregariousness and group structure, juvenile dispersal, home-range traditions, monogamy and polygamy, sexual dimorphism, territoriality, hierarchical rank structure, and plasticity of social structures. The ecological variables have primary manifestations which are behavior or which affect behavior, as well as secondary manifestations affecting behavior. There are logical links between the hypothesis linking ecology and behavior discussed here with some principles from bioenergetics, zoogeography, and paleontology. Although links do exist between ecology and behavior, they nevertheless represent distinct realms of natural selection in which social behavior appears as the more conservative element. The theoretical basis for this is discussed. |
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Equine Behaviour @ team @ |
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4261 |
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Jarman, P.J . |
| Title |
The social behaviour of antelope in relation to their ecology |
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Journal Article |
| Year |
1974 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
| Volume |
48 |
Issue |
1-4 |
Pages |
213-267 |
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The types of social organisation displayed by the African antelope species have been assigned in this paper to five classes, distinguished largely by the strategies used by the reproductively active males in securing mating rights, and the effects of those strategies on other social castes. The paper attempts to show that these strategies are appropriate to each class because of the effects of other, ecological, aspects of their ways of life. The paper describes different feeding styles among antelope, in terms of selection of food items and coverage of home ranges. It argues that these feeding styles bear a relationship to maximum group size of feeding animals through the influence of dispersion of food items upon group cohesion. The feeding styles also bear a relationship to body size and to habitat choice, both of which influence the antelope species' antipredator behaviour. Thus feeding style is related to anti-predator behaviour which, in many species, influences minimum group size. Group size and the pattern of movement over the annual home range affect the likelihood of females being found in a given place at a given time, and it is this likelihood which, to a large extent, determines the kind of strategy a male must employ to achieve mating rights. The effects of the different strategies employed by males can be seen in such aspects of each species' biology as sexual dimorphism, adult sex ratio, and differential distribution of the sexes. |
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Equine Behaviour @ team @ |
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4264 |
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