| Records |
| Author |
Shi, J.; Dunbar, R.I.M.; Buckland, D.; Miller, D. |
| Title |
Dynamics of grouping patterns and social segregation in feral goats (Capra hircus) on the Isle of Rum, NW Scotland |
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Journal Article |
| Year |
2005 |
Publication |
Mammalia |
Abbreviated Journal |
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| Volume |
69 |
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no |
Call Number  |
Equine Behaviour @ team @ Shi2005 |
Serial |
6257 |
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| Author |
Stanley, C.R.; Dunbar, R.I.M. |
| Title |
Consistent social structure and optimal clique size revealed by social network analysis of feral goats, Capra hircus |
Type |
Journal Article |
| Year |
2013 |
Publication |
Anim Behav |
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| Volume |
85 |
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no |
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Equine Behaviour @ team @ Stanley2013 |
Serial |
6253 |
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| Author |
Zhou, W.-X.; Sornette, D.; Hill, R.A.; Dunbar, R.I.M. |
| Title |
Discrete hierarchical organization of social group sizes |
Type |
Journal Article |
| Year |
2005 |
Publication |
Proceedings. Biological sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
| Volume |
272 |
Issue |
1561 |
Pages |
439-444 |
| Keywords |
Anthropology, Cultural; *Group Structure; Humans; *Models, Biological; *Social Behavior; *Social Environment |
| Abstract |
The 'social brain hypothesis' for the evolution of large brains in primates has led to evidence for the coevolution of neocortical size and social group sizes, suggesting that there is a cognitive constraint on group size that depends, in some way, on the volume of neural material available for processing and synthesizing information on social relationships. More recently, work on both human and non-human primates has suggested that social groups are often hierarchically structured. We combine data on human grouping patterns in a comprehensive and systematic study. Using fractal analysis, we identify, with high statistical confidence, a discrete hierarchy of group sizes with a preferred scaling ratio close to three: rather than a single or a continuous spectrum of group sizes, humans spontaneously form groups of preferred sizes organized in a geometrical series approximating 3-5, 9-15, 30-45, etc. Such discrete scale invariance could be related to that identified in signatures of herding behaviour in financial markets and might reflect a hierarchical processing of social nearness by human brains. |
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State Key Laboratory of Chemical Reaction Engineering, East China University of Science and Technology, Shanghai 200237, China |
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English |
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0962-8452 |
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| Notes |
PMID:15734699 |
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no |
| Call Number |
refbase @ user @ |
Serial |
549 |
| Permanent link to this record |
