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Author Boogert, N.J.; Reader, S.M.; Laland, K.N. url  doi
openurl 
  Title The relation between social rank, neophobia and individual learning in starlings Type Journal Article
  Year 2006 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 72 Issue 6 Pages 1229-1239  
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  Abstract Researchers with diverse interests in topics ranging from the formation of dominance hierarchies and social intelligence to animal personalities have predicted specific, and often conflicting, relations between social rank, neophobia and learning ability. We investigated the relations between these variables in captive groups of wild-caught starlings, Sturnus vulgaris, adopting a multidimensional approach to social rank and neophobia. Both agonistic and competitive rank orders were determined for each group and we tested individuals in the absence of their groupmates for object neophobia, latency to feed in a novel environment and performance on an extractive foraging task. In each starling group, the fastest learners occupied the highest competitive ranks, supporting the hypothesis that cognitive ability is positively correlated with social dominance. Competitive rank orders, however, did not correlate significantly with agonistic rank orders. Situation-specific foraging neophobia was suggested: individuals showed consistency in their latencies to feed near a variety of novel objects, but no significant correlation was found between this measure of object neophobia and latency to feed in a novel environment. Starlings fastest to feed in the novel environment were fastest in solving the foraging task. We discuss the implications of these findings for researchers studying hierarchy formation in animal groups, social intelligence and animal personalities.  
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  Call Number Equine Behaviour @ team @ room B 3.029 Serial 2074  
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Author Reader, S.; Laland, K. doi  openurl
  Title Primate Innovation: Sex, Age and Social Rank Differences Type Journal Article
  Year 2001 Publication International Journal of Primatology Abbreviated Journal Int. J. Primatol.  
  Volume 22 Issue 5 Pages 787-805  
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  Abstract Analysis of an exhaustive survey of primate behavior collated from the published literature revealed significant variation in rates of innovation among individuals of different sex, age and social rank. We searched approximately 1,000 articles in four primatology journals, together with other relevant databases, for examples of innovation. The reported incidence of innovation is higher in males and adults, and lower in females and nonadults, than would be expected by chance given the estimated relative proportions of these groups. Amongst chimpanzees, the only species for which there are sufficient data to consider alone, there is a similar sex difference in the propensity to innovate, but no effect of age. Chimpanzees of low social rank are reported as innovators more frequently than high-ranking chimpanzees are. Male chimpanzees innovate more often than females in sexual, courtship, mating and display contexts; that is, in contexts likely to increase access to mates. The largest number of recorded observations are in the foraging context, wherein contrary to expectations, there is no evidence for female chimpanzees exhibiting more innovation than males. The study is the first extensive investigation of behavioral innovation in primates and provides evidence that much individual variation in the propensity to innovate can be explained in terms of sex, age, and social rank.  
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  Notes Approved no  
  Call Number Serial 2152  
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Author Laland, K. N.; Richerson, P. J.; Boyd, R. openurl 
  Title Developing a theory of animal social learning. Type Book Chapter
  Year 1996 Publication Social learning in animals: the roots of culture. Abbreviated Journal  
  Volume Issue Pages 129-154  
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  Publisher Academic Press Place of Publication San Diego, California Editor Heyes, C. M.;Galef,B. G. J.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ home Serial 4093  
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Author Webster, M.M.; Laland, K.N. url  doi
openurl 
  Title Social learning strategies and predation risk: minnows copy only when using private information would be costly Type Journal Article
  Year 2008 Publication Proc Biol Sci Abbreviated Journal Proc. R. Soc. Lond. B  
  Volume 275 Issue 1653 Pages 2869-2876  
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  Abstract Animals can acquire information from the environment privately, by sampling it directly, or socially, through learning from others. Generally, private information is more accurate, but expensive to acquire, while social information is cheaper but less reliable. Accordingly, the 'costly information hypothesis' predicts that individuals will use private information when the costs associated with doing so are low, but that they should increasingly use social information as the costs of using private information rise. While consistent with considerable data, this theory has yet to be directly tested in a satisfactory manner. We tested this hypothesis by giving minnows (Phoxinus phoxinus) a choice between socially demonstrated and non-demonstrated prey patches under conditions of low, indirect and high simulated predation risk. Subjects had no experience (experiment 1) or prior private information that conflicted with the social information provided by the demonstrators (experiment 2). In both experiments, subjects spent more time in the demonstrated patch than in the non-demonstrated patch, and in experiment 1 made fewer switches between patches, when risk was high compared with when it was low. These findings are consistent with the predictions of the costly information hypothesis, and imply that minnows adopt a 'copy-when-asocial-learning-is-costly' learning strategy.  
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  Call Number Equine Behaviour @ team @ Serial 6196  
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Author Hoppitt, W.; Laland, K.N. url  doi
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  Title Social processes influencing learning in animals: a review of the evidence Type Journal Article
  Year 2008 Publication Adv Study Behav Abbreviated Journal  
  Volume 38 Issue Pages 105-165  
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  Call Number Equine Behaviour @ team @ Hoppitt2008 Serial 6260  
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Author Reader, S.M.; Laland, K.N. isbn  openurl
  Title Animal Innovation Type Book Whole
  Year 2009 Publication Abbreviated Journal  
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  Publisher Oxford University Press Place of Publication Oxford Editor  
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  ISSN (up) ISBN 978-0-19-852622 Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6381  
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Author Reader, S. M.; Laland, K.N. openurl 
  Title Animal Innovation Type Book Whole
  Year 2003 Publication Abbreviated Journal  
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  Publisher Oxford University Press Place of Publication Oxford Editor  
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  Call Number Equine Behaviour @ team @ Serial 6531  
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Author Laland, K. N.; van Bergen, Y openurl 
  Title Experimental studies of innovation in the guppy Type Journal Article
  Year 2003 Publication Animal Innovation Abbreviated Journal  
  Volume Issue Pages 155-174  
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  Publisher Oxford University Press Place of Publication Ox Editor S. M. Reader and K. N. Laland  
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  Call Number Equine Behaviour @ team @ Serial 6537  
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Author Reader, S.M.; Laland, K.N. doi  openurl
  Title Diffusion of foraging innovations in the guppy Type Journal Article
  Year 2000 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 60 Issue 2 Pages 175-180  
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  Abstract The way in which novel learned behaviour patterns spread through animal populations remains poorly understood, despite extensive field research and the recognition that such processes play an important role in the behavioural development, social interactions and evolution of many animal species. We conducted a series of controlled diffusions of foraging information in replicate experimental populations of the guppy, Poecilia reticulata. We presented novel foraging tasks over 15 trials to mixed-sex groups, made up of food-deprived and nonfood-deprived adults (experiment 1) or small, young fish and old, large adults (experiment 2). In these diffusions, knowledge of a route to a feeder could spread through the group by subjects learning from others, discovering the route for themselves, or, most likely, by some combination of these social and asocial learning processes. We found a striking sex difference, with novel foraging information spreading at a significantly faster rate through subgroups of females than of males. Females both discovered the goal and learned the route more quickly than males. Food-deprived individuals were faster at completing the tasks over the 15 trials than nonfood-deprived guppies, and there was a significant interaction between sex and size, with a sex difference in adults but not young individuals. There was also an interaction between sex and hunger level, with food deprivation having a stronger effect on male than female performance. We suggest that information may diffuse in a similar nonrandom or 'directed' manner through many natural populations of animals. Copyright 2000 The Association for the Study of Animal Behaviour.  
  Address Sub-Department of Animal Behaviour, Department of Zoology, University of Cambridge  
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  Language English Summary Language Original Title  
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  ISSN (up) 0003-3472 ISBN Medium  
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  Notes PMID:10973718 Approved no  
  Call Number Serial 2150  
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Author Laland, K.N.; Reader, S.M. doi  openurl
  Title Foraging innovation in the guppy Type Journal Article
  Year 1999 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 57 Issue 2 Pages 331-340  
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  Abstract When novel behaviour patterns spread through animal populations, typically one animal will initiate the diffusion. It is not known whether such 'innovators' are particularly creative individuals, individuals exposed to the appropriate environmental contingencies, or individuals in a particular motivational state. We describe three experiments that investigated the factors influencing foraging innovation in the guppy Poecilia reticulata. We exposed small laboratory populations of fish to novel foraging tasks, which involved exploration and problem solving to locate a novel food source. Experiments 1 and 2 found that (1) females were more likely to innovate than males, (2) food-deprived fish were more likely to innovate than nonfood-deprived subjects, and (3) smaller fish were more likely to innovate than larger fish. We suggest that the sex difference may reflect parental investment asymmetries in males and females. Experiment 3 found that past innovators were more likely to innovate than past noninnovators. Collectively, the results suggest that differences in foraging innovation in guppies are best accounted for by differences in motivational state, but, in addition, guppies may vary in their predisposition to innovate. Copyright 1999 The Association for the Study of Animal Behaviour.  
  Address Sub-Department of Animal Behaviour, Department of Zoology, University of Cambridge  
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  Language English Summary Language Original Title  
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  ISSN (up) 0003-3472 ISBN Medium  
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  Notes PMID:10049472 Approved no  
  Call Number Serial 2151  
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