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Hrdy, S.B. |
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Title |
Male-male competition and infanticide among the langurs (Presbytis entellus) of Abu, Rajasthan |
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Journal Article |
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Year |
1974 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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Volume |
22 |
Issue |
1 |
Pages |
19-58 |
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Keywords |
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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Author |
Dunbar, R.I.M. |
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Title |
Observations on the ecology and social organization of the green monkey,Cercopithecus sabaeus, in Senegal |
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Journal Article |
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Year |
1974 |
Publication |
Primates |
Abbreviated Journal |
Primates |
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Volume |
15 |
Issue |
4 |
Pages |
341-350 |
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Abstract |
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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Author |
Powell, G.V.N. |
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Title |
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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Year |
1974 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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Volume |
22 |
Issue |
2 |
Pages |
501-505 |
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Abstract |
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. |
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Title |
The concept of dominance and methods of assessment |
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Journal Article |
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Year |
1974 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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Volume |
22 |
Issue |
Part 4 |
Pages |
914-930 |
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Abstract |
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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