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Author Ellis, L. url  doi
openurl 
  Title Dominance and reproductive success among nonhuman animals: A cross-species comparison Type Journal Article
  Year (up) 1995 Publication Ethology and Sociobiology Abbreviated Journal Ethol. a. Sociob.  
  Volume 16 Issue 4 Pages 257-333  
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  Abstract This paper updates and extends Dewsbury's (1982) review of the literature on dominance and reproductive success (RS). The findings from approximately 700 studies are included, over two thirds of which were unavailable to Dewsbury. In order to give a highly condensed and yet meaningful overview, the main findings are represented in four tables, one for male nonprimates, one for female nonprimates, one for male primates, and one for female primates. In the tables for males, findings are analyzed in terms of six different indicators of RS, and in the tables for females, in terms of eight RS indicators. Outside the primate order, evidence largely supported the hypothesis that high-ranking males enjoy greater RS than do subordinate males. For females, studies are more evenly divided between those supporting the hypothesis that high rank and RS are positively correlated and those indicating no significant rank-RS relationship. This may reflect both the lower saliency of hierarchical relationships among females, as well as the lower variability in RS among females, relative to males. Among primates, a complex picture has emerged, especially in the case of males. Much of the complexity appears due to the importance of age and seniority in affecting dominance rank. Also, in some primate species, female preferences for sex partners seem to have little to do with the male's dominance rank, at least at the time mating takes place. Nevertheless, the majority of studies suggest that high- to middle-ranking males have at least a slight lifetime reproductive advantage over the lowest ranking males.  
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  Call Number refbase @ user @ Serial 722  
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Author Boyd, R.; Richerson, P.J. url  doi
openurl 
  Title Why does culture increase human adaptability? Type Journal Article
  Year (up) 1995 Publication Ethology and Sociobiology Abbreviated Journal Ethol. a. Sociob.  
  Volume 16 Issue 2 Pages 125-143  
  Keywords Social learning; Adaptation; Culture; Sociobiology  
  Abstract It is often argued that culture is adaptive because it allows people to acquire useful information without costly learning. In a recent paper Rogers (1989) analyzed a simple mathematical model that showed that this argument is wrong. Here we show that Rogers' result is robust. As long as the only benefit of social learning is that imitators avoid learning costs, social learning does not increase average fitness. However, we also show that social learning can be adaptive if it makes individual learning more accurate or less costly.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4196  
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Author Kasuya,Eiiti doi  openurl
  Title A randomization test for linearity of dominance hierarchies Type Journal Article
  Year (up) 1995 Publication Journal of Ethology Abbreviated Journal J. Ethol.  
  Volume 13 Issue 1 Pages 137-140  
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  Call Number Equine Behaviour @ team @ Serial 4288  
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Author Dellert, B.; Ganslosser, U. url  openurl
  Title Experimental alterations of food distribution in two species of captive equids (Equus burchelli and E. hemionus kulan) Type Journal Article
  Year (up) 1997 Publication Ethology Ecology & Evolution (EEE) Abbreviated Journal Ethol Ecol Evol  
  Volume 9 Issue 1 Pages 1-17  
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  Abstract n one group each of Plains zebra (six mares, one foal, one subadult) and Asiatic wild asses (seven mares, two foals) at Nuremberg Zoo, food distribution was experimentally changed from clumped (all food in one standard hay rack) to dispersed (one heap per animal). Both groups were characterized by different social structures, which basically remained during the experiment. Plains zebras had an individually structured system of social relationships in a dominance order, wild asses a more egalitarian system without clear-cut rank differences and low frequencies of agonistic interactions. Access to food accordingly was individually (but consistently) different for zebra mares, almost equal for wild ass mares. During the dispersed feeding situation frequencies of agonistic interactions in both species decreased (however non-significantly), individual distances increased but mares also frequently ''visited'' each others' heaps. Feeding time increased for all wild ass mares. Some individuals (in both groups) behaved ''against the trend'' in agonistic behaviour. The results are discussed with regard to food distribution for ungulates in general, and equid social systems.  
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  Call Number Equine Behaviour @ team @ Serial 2292  
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Author Dunbar, R. I. M.; Bever, J. openurl 
  Title Neocortex size predicts group size in carnivores and some insectivores Type Journal Article
  Year (up) 1998 Publication Ethology Abbreviated Journal Ethology  
  Volume 108 Issue 8 Pages 695-708  
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  Abstract Neocortex size has been shown to correlate with group size in primates. Data for carnivores and insectivores are used to test the generality of this relationship. The data suggest that carnivores lie on the same grade as the primates, but that insectivores lie on a separate grade to the left of these two orders. Among the insectivores, there appears to be a distinction between the 'advanced' genera (which show a relationship between group size and neocortex size) and the 'basal' genera (which do not).  
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  Call Number Equine Behaviour @ team @ Serial 4734  
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Author Rendall, D. url  doi
openurl 
  Title Review of Machiavellian Intelligence II: Extensions and Evaluations Type Journal Article
  Year (up) 1999 Publication Ethology Abbreviated Journal Ethology  
  Volume 105 Issue 2 Pages 178-182  
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  Call Number Equine Behaviour @ team @ Serial 3998  
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Author Koops, M.A.; Abrahams, M.V. doi  openurl
  Title Assessing the Ideal Free Distribution: Do Guppies Use Aggression as Public Information about Patch Quality? Type Journal Article
  Year (up) 1999 Publication Ethology Abbreviated Journal Ethology  
  Volume 105 Issue 9 Pages 737-746  
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  Abstract Aggression can be costly to foragers, yet some recent research suggests that foragers should use aggression as a cue to patch quality (the attractive aggression hypothesis). If aggression is predictive of patch quality, then the attractive aggression hypothesis predicts that the distribution of foragers should follow the distribution of aggression. If, instead, aggression is repulsive because it is costly, then the distribution of foragers should diverge from the distribution of aggression. We tested the attractive aggression hypothesis using female guppies, Poecilia reticulata, and found that the distribution of foragers followed the distribution of food, but was unaffected by the distribution of aggression. These data do not support the attractive aggression hypothesis, but instead suggest that the distribution of aggression is a consequence of the distribution of foragers, and that aggression is not used as public information about patch quality.  
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  Call Number Equine Behaviour @ team @ Serial 4271  
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Author Seferta, A.; Guay, P.-J.; Marzinotto, E.; Lefebvre, L. doi  openurl
  Title Learning Differences between Feral Pigeons and Zenaida Doves: The Role of Neophobia and Human Proximity Type Journal Article
  Year (up) 2001 Publication Ethology Abbreviated Journal Ethology  
  Volume 107 Issue Pages 281-293  
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  Abstract Learning differences predicted from ecological variables can be confounded with differences in wariness of novel stimuli (neophobia). Previous work on feral pigeons (Columba livia), as well as on group-feeding and territorial zenaida doves (Zenaida aurita), reported individual and social learning differences predicted from social foraging mode. In the present study, we show that speed of learning a foraging task covaries with neophobia and latency to feed from a familiar dish in the three types of columbids. Pigeons were much faster than either territorial or group-feeding zenaida doves on all tests conducted in captivity, but showed unexpectedly strong neophobia in some urban flocks during field tests. Human proximity strongly affected performance in group-feeding doves both in the field and in captivity. They were slightly faster at learning than their territorial conspecifics in cage tests. In multiple regressions, species identity, but not social foraging mode, significantly predicted individual variation in learning, as did individual variation in neophobia. Wariness of novel stimuli and species differences associated with artificial selection appear to be more important than foraging mode and wariness of humans in accounting for learning differences between these columbids.  
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  Call Number Equine Behaviour @ team @ Serial 2184  
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Author Hampton, R.R. url  openurl
  Title Animal Minds: Beyond Cognition to Consciousness Type Journal Article
  Year (up) 2001 Publication Ethology Abbreviated Journal Ethology  
  Volume 107 Issue Pages 1055-1056  
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  Call Number refbase @ user @ Serial 3487  
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Author Hemelrijk, C.K. url  doi
openurl 
  Title Understanding Social Behaviour with the Help of Complexity Science (Invited Article) Type Journal Article
  Year (up) 2002 Publication Ethology Abbreviated Journal Ethology  
  Volume 108 Issue 8 Pages 655-671  
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  Abstract Abstract In the study of complexity, a new kind of explanation has been developed for social behaviour. It shows how patterns of social behaviour can arise as a side-effect of the interaction of individuals with their social or physical environment (e.g. by self-organization). This development may influence our ideas about the direct causation and evolution of social behaviour. Furthermore, it may influence our theories about the integration of different traits. This new method has been made possible by the increase in computing power. It is now applied in many areas of science, such as physics, chemistry, sociology and economics. However, in zoology and anthropology it is still rare. The major aim of this paper is to make this method more generally accepted among behavioural scientists.  
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  Publisher Blackwell Verlag, GmbH Place of Publication Editor  
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  ISSN 1439-0310 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5200  
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