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Author |
Ohtsuki, H.; Iwasa, Y.; Nowak, M.A. |
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Title |
Indirect reciprocity provides only a narrow margin of efficiency for costly punishment |
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Journal Article |
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2009 |
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Nature |
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Volume |
457 |
Issue |
7225 |
Pages |
79-82 |
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Abstract |
Indirect reciprocity1, 2, 3, 4, 5 is a key mechanism for the evolution of human cooperation. Our behaviour towards other people depends not only on what they have done to us but also on what they have done to others. Indirect reciprocity works through reputation5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17. The standard model of indirect reciprocity offers a binary choice: people can either cooperate or defect. Cooperation implies a cost for the donor and a benefit for the recipient. Defection has no cost and yields no benefit. Currently there is considerable interest in studying the effect of costly (or altruistic) punishment on human behaviour18, 19, 20, 21, 22, 23, 24, 25. Punishment implies a cost for the punished person. Costly punishment means that the punisher also pays a cost. It has been suggested that costly punishment between individuals can promote cooperation. Here we study the role of costly punishment in an explicit model of indirect reciprocity. We analyse all social norms, which depend on the action of the donor and the reputation of the recipient. We allow errors in assigning reputation and study gossip as a mechanism for establishing coherence. We characterize all strategies that allow the evolutionary stability of cooperation. Some of those strategies use costly punishment; others do not. We find that punishment strategies typically reduce the average payoff of the population. Consequently, there is only a small parameter region where costly punishment leads to an efficient equilibrium. In most cases the population does better by not using costly punishment. The efficient strategy for indirect reciprocity is to withhold help for defectors rather than punishing them. |
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Macmillan Publishers Limited. All rights reserved |
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0028-0836 |
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10.1038/nature07601 |
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Equine Behaviour @ team @ |
Serial |
4705 |
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Author |
Kudo, H.; Dunbar, R.I.M. |
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Title |
Neocortex size and social network size in primates |
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Journal Article |
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Year |
2001 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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62 |
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4 |
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711-722 |
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Abstract |
Primates use social grooming to service coalitions and it has been suggested that these directly affect the fitness of their members by allowing them to reduce the intrinsic costs associated with living in large groups. We tested two hypotheses about the size of grooming cliques that derive from this suggestion: (1) that grooming clique size should correlate with relative neocortex size and (2) that the size of grooming cliques should be proportional to the size of the groups they have to support. Both predictions were confirmed, although we show that, in respect of neocortex size, there are as many as four statistically distinct grades within the primates (including humans). Analysis of the patterns of grooming among males and females suggested that large primate social groups often consist of a set of smaller female subgroups (in some cases, matrilinearly based coalitions) that are linked by individual males. This may be because males insert themselves into the interstices between weakly bonded female subgroups rather than because they actually hold these subunits together. |
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0003-3472 |
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Equine Behaviour @ team @ |
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4726 |
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Young, H.P. |
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Title |
The dynamics of social innovation |
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Journal Article |
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2011 |
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Proceedings of the National Academy of Sciences |
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Proc. Natl. Acad. Sci. U.S.A. |
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108 |
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Supplement 4 |
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21285-21291 |
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10.1073/pnas.1100973108 |
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Equine Behaviour @ team @ |
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5940 |
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Mal, M.E.; Friend, T.H.; Lay, D.C.; Vogelsang, S.G.; Jenkins, O.C. |
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Title |
Behavioral responses of mares to short-term confinement and social isolation |
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Journal Article |
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Year |
1991 |
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Applied Animal Behaviour Science |
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Appl. Anim. Behav. Sci. |
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31 |
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1-2 |
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13-24 |
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Thirty-six mares, blocked by age and temperament score, were assigned to one of three treatment groups: pasture (P); confinement stalls (C), allowing social contact; isolation stalls (ISS), allowing no contact with conspecifics. After 48 h on treatment, the mares were observed in situ for 1 h. Medium temperament and highly reactive ISS mares spent more time eating grain (P<0.01) and exhibited more grain-eating bouts (P<0.03) than P and C mares. Calm P mares had longer forage-eating bouts than C and ISS mares (P<0.02). During a 15 min open-field test in a 23 m x 23 m pen after 72 h on treatment, ISS mares traveled farther (P<0.005) than C and P mares, spent more total time trotting (P<0.01) than C and P mares, and exhibited a greater number of trotting bouts (P<0.01) than both C and P mares. Isolated mares spent less total time standing during the open-field test than C (P<0.05) and P (P<0.01) mares, but exhibited a greater number of standing bouts than C (P<0.05) and P (P<0.01) mares. Isolated mares also exhibited a greater number of total activity bouts (P<0.01) during the open-field test than both C and P mares; P mares also exhibited fewer activity bouts than C mares (P<0.1). Results indicate that mares kept in confined and isolated environments showed greater motivation for movement and performance of a greater number of activities than those maintained on pasture with conspecifics. |
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0168-1591 |
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Equine Behaviour @ team @ |
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4820 |
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Author |
Clutton-Brock, T.H.; Parker, G.A. |
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Title |
Punishment in animal societies |
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Journal Article |
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Year |
1995 |
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Nature |
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Volume |
373 |
Issue |
6511 |
Pages |
209-216 |
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Although positive reciprocity (reciprocal altruism) has been a focus of interest in evolutionary biology, negative reciprocity (retaliatory infliction of fitness reduction) has been largely ignored. In social animals, retaliatory aggression is common, individuals often punish other group members that infringe their interests, and punishment can cause subordinates to desist from behaviour likely to reduce the fitness of dominant animals. Punishing strategies are used to establish and maintain dominance relationships, to discourage parasites and cheats, to discipline offspring or prospective sexual partners and to maintain cooperative behaviour. |
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10.1038/373209a0 |
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Equine Behaviour @ team @ |
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4838 |
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Author |
Clutton-Brock, T.H.; Green, D.; Hiraiwa-Hasegawa, M.; Albon, S.D. |
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Title |
Passing the buck: resource defence, lek breeding and mate choice in fallow deer |
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Journal Article |
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1988 |
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Behav. Ecol. Sociobiol. |
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23 |
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281-296 |
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Abstract |
lsquoLekrsquo breeding systems, where males defend small, clustered mating territories, are thought to occur where the distribution of females is heavily clumped but males are unable to defend resources used by females. In this paper, we describe a breeding system in fallow deer where males are able to defend resources used by females but the most successful bucks instead defend small territories on a traditional mating ground; where the lek is sited in an area not heavily used by females at other times of year and is visited primarily by females in or close to oestrus; and where mating success on the lek is related to territory position and to male phenotype but not to the resources available on different lek territories. Comparisons with other ungulates suggest that lek breeding species fall into two groups: those where leks are regularly visited by herds of females many of which are not in oestrus and those, like fallow deer, where leks are visited primarily by oestrous females. In the latter species, it is unlikely that females visit the lek for ecological reasons. |
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10.1007/Bf00300575 |
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Equine Behaviour @ team @ |
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4882 |
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Author |
Manson, J.H. |
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Title |
Male aggression: a cost of female mate choice in Cayo Santiago rhesus macaques |
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Journal Article |
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Year |
1994 |
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Animal Behaviour. |
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Anim. Behav. |
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48 |
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473-475 |
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10.1006/anbe.1994.1262 |
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Equine Behaviour @ team @ |
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4888 |
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Author |
Manson, J.H. |
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Title |
Measuring female mate choice in Cayo Santiago rhesus macaques |
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1992 |
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Animal Behaviour. |
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Anim. Behav. |
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44 |
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405-416 |
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Few studies of female mate choice have been carried out among free-ranging non-human primates. To qualify as female mate choice, behaviour by oestrous females must predict the occurrence or rate of potentially fertile copulations, in comparisons between heterosexual dyads. In this paper, data are presented to show three behaviour patterns that meet this criterion in free-ranging rhesus macaques, Macaca mulatta, at the island colony of Cayo Santiago: (1) selective cooperation with male sexual solicitations (hip-grasps), (2) restoration of proximity following attacks on females by intruding males, and (3) proximity maintenance (in one of two study groups). Oestrous females maintained proximity preferentially to lower ranking males, but this appeared to reflect differences in the tactics necessary to achieve copulations with males of different dominance ranks, rather than preference for lower ranking mates. Male-oestrous female dyads showed consistency over two consecutive mating seasons in which partner was responsible for proximity maintenance. Male dominance rank was positively correlated with copulatory rate with fertile females. However, in one study group, males to whom oestrous females maintained proximity more actively had higher copulatory rates with fertile females, independent of the effects of male dominance rank. |
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10.1016/0003-3472(92)90051-A |
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Equine Behaviour @ team @ |
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4889 |
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Author |
Reeve, H.K. |
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Title |
Queen activation of lazy workers in colonies of the eusocial naked mole-rat |
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1992 |
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Nature |
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Nature |
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358 |
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147-149 |
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10.1038/358147a0 |
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Equine Behaviour @ team @ |
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4921 |
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Author |
Whitehead, H.; Dufault, S. |
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Title |
Techniques for Analyzing Vertebrate Social Structure Using Identified Individuals: Review and Recommendations |
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1999 |
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Volume 28 |
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33-74 |
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Academic Press |
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Peter J.B. Slater, J.S.R., Charles T. Snowden and Timothy J. Roper |
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0065-3454 |
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Equine Behaviour @ team @ |
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4987 |
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