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Author Kaminski, J.; Call, J.; Fischer, J. url  doi
openurl 
  Title Word Learning in a Domestic Dog: Evidence for “Fast Mapping” Type Journal Article
  Year 2004 Publication Science Abbreviated Journal Science  
  Volume 304 Issue 5677 Pages (down) 1682-1683  
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  Abstract During speech acquisition, children form quick and rough hypotheses about the meaning of a new word after only a single exposure--a process dubbed “fast mapping.” Here we provide evidence that a border collie, Rico, is able to fast map. Rico knew the labels of over 200 different items. He inferred the names of novel items by exclusion learning and correctly retrieved those items right away as well as 4 weeks after the initial exposure. Fast mapping thus appears to be mediated by general learning and memory mechanisms also found in other animals and not by a language acquisition device that is special to humans.  
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  Notes 10.1126/science.1097859 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4678  
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Author Milgram, N.W. doi  openurl
  Title Cognitive Experience and Its Effect on Age-Dependent Cognitive Decline in Beagle Dogs Type Journal Article
  Year 2003 Publication Neurochemical Research Abbreviated Journal  
  Volume 28 Issue 11 Pages (down) 1677-1682  
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  Abstract Test-sophisticated beagle dogs show marked age sensitivity in a size discrimination learning task, with old and senior dogs performing significantly more poorly than young dogs. By contrast, age differences in learning were not seen in dogs naive with respect to neuropsychological test experience. These results indicate that old animals benefit less from prior cognitive experience than young animals, which is an example of an age-dependent loss in plasticity. This finding also suggests that behaviorally experienced animals are a more useful model of human cognitive aging than behaviorally naive animals. We also looked at the effect of a program of behavioral enrichment in aged dogs. One year of enrichment did not lead to significant differences, but after 2 years the behaviorally enriched group performed significantly better than the control group. The effect after 2 years indicates that a prolonged program of cognitive enrichment can serve as an effective intervention in aged dogs. These findings demonstrate that cognitive abilities in aged animals can be modified by providing behavioral experience, indicating that cognitive abilities remain moderately plastic, even in very old animals.  
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  Call Number Equine Behaviour @ team @ Serial 3151  
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Author Jonart, L.M.; Hill, G.E.; Badyaev, A.V. url  doi
openurl 
  Title Fighting ability and motivation: determinants of dominance and contest strategies in females of a passerine bird Type Journal Article
  Year 2007 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 74 Issue 6 Pages (down) 1675-1681  
  Keywords aggression; Carpodacus mexicanus; communication; house finch; passerines; resource holding potential  
  Abstract The communication of aggressive motivation or fighting ability has important fitness consequences for competing animals. Selection should favour rapid and honest communication between opponents to settle dominance relationships while avoiding prolonged and intense fighting. We investigated factors that influence fighting strategies and contest outcomes in female house finches, Carpodacus mexicanus, specifically focusing on the following questions. (1) What social contexts trigger an aggressive response? (2) Does body size and condition contribute to female fighting ability? (3) Do contextual factors, such as mate presence, nest status, nest proximity, and site experience contribute to fighting motivation? (4) Does contest intensity and duration increase as the differences in fighting ability between opponents decrease? (5) What is the relative contribution of fighting ability and aggressive motivation to the outcome of a contest? We found that aggression was triggered most frequently by female intrusions in the vicinity of nest and by extrapair female intrusions on an established pair. Female fighting and contest outcomes were strongly influenced by body condition and body size, and females were more motivated to initiate fights and won more contests when their mates were present. Females at the later breeding stages and those fighting closer to their nests were dominant and won more fights compared to females at earlier breeding stages or further from their nests. Females initiated a greater proportion of contests against opponents with similar local familiarity and breeding history. Escalated and prolonged contests, while rare, occurred exclusively between females of the most similar body size and condition. When differences in body condition between opponents are not easily perceived, contestants might escalate contests for more reliable assessments of relative fighting ability. Finally, body condition was not a strong determinant of contest outcome in the contexts with easily assessed differences in the resource value (e.g. mate presence), but without these motivational differences, body condition was the ultimate determinant of contest outcomes.  
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  Call Number Equine Behaviour @ team @ Serial 4317  
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Author Drummond, H.; Canales, C. url  doi
openurl 
  Title Dominance between booby nestlings involves winner and loser effects Type Journal Article
  Year 1998 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 55 Issue 6 Pages (down) 1669-1676  
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  Abstract Two-chick broods of the blue-footed booby,Sula nebouxii, ordinarily exhibit stable dominance-subordinance, with the senior (first-hatched) chick habitually aggressive and the junior one habitually submissive (Nelson 1978,The Sulidae: Gannets and Boobies. London: Oxford University Press). But are both the subordinate and the dominant chick affected in their agonistic tendencies by early social experience? To answer this, we permanently paired subordinate and dominant chicks, 2-3 weeks old, with singletons (chicks lacking experience with a nestmate) by cross-fostering. During the first 4 h after pairing, subordinate chicks were seven times less aggressive than singletons and twice as likely to be submissive; dominant chicks were six times as aggressive as singletons. Although most subordinates consistently lost agonistic encounters during the first 10 days after pairing, the proportion of dominants that won decreased progressively until, by day 6, only about half of dominant chicks were winning. Early social experience has a strong but reversable training effect on both subordinates and dominants. Training as a subordinate showed more persistent effects than training as a dominant, possibly in part because our testing situation perpetuated subordinate training and counteracted dominant training.  
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  Call Number refbase @ user @ Serial 861  
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Author Walter, G.; Reisner, A. url  openurl
  Title Student opinion formation on animal agriculture issues Type Journal Article
  Year 1994 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume 72 Issue 6 Pages (down) 1654-1658  
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  Call Number Equine Behaviour @ team @ Serial 2935  
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Author Dixon, J. openurl 
  Title The horse: A dumb animal?... neigh Type Journal Article
  Year 1970 Publication Thoroughbred Rec. Abbreviated Journal  
  Volume 192 Issue 19 Pages (down) 1654-1657  
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  Notes Cited By (since 1996): 6; Export Date: 24 October 2008 Approved no  
  Call Number Admin @ knut @ Serial 4582  
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Author Horváth, G.; Blahó, M.; Kriska, G.; Hegedüs, R.; Gerics, B.; Farkas, R.; Åkesson, S. url  doi
openurl 
  Title An unexpected advantage of whiteness in horses: the most horsefly-proof horse has a depolarizing white coat Type Journal Article
  Year 2010 Publication Proceedings of the Royal Society B: Biological Sciences Abbreviated Journal  
  Volume 277 Issue 1688 Pages (down) 1643-1650  
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  Abstract White horses frequently suffer from malign skin cancer and visual deficiencies owing to their high sensitivity to the ultraviolet solar radiation. Furthermore, in the wild, white horses suffer a larger predation risk than dark individuals because they can more easily be detected. In spite of their greater vulnerability, white horses have been highly appreciated for centuries owing to their natural rarity. Here, we show that blood-sucking tabanid flies, known to transmit disease agents to mammals, are less attracted to white than dark horses. We also demonstrate that tabanids use reflected polarized light from the coat as a signal to find a host. The attraction of tabanids to mainly black and brown fur coats is explained by positive polarotaxis. As the host's colour determines its attractiveness to tabanids, this parameter has a strong influence on the parasite load of the host. Although we have studied only the tabanid–horse interaction, our results can probably be extrapolated to other host animals of polarotactic tabanids, as the reflection–polarization characteristics of the host's body surface are physically the same, and thus not species-dependent.  
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  Call Number Equine Behaviour @ team @ Serial 5702  
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Author Schmoldt, A.; Benthe, H.F.; Haberland, G. openurl 
  Title Digitoxin metabolism by rat liver microsomes Type Journal Article
  Year 1975 Publication Biochemical pharmacology Abbreviated Journal Biochem Pharmacol  
  Volume 24 Issue 17 Pages (down) 1639-1641  
  Keywords Animals; Chromatography, Thin Layer; Digitoxigenin/metabolism; Digitoxin/*metabolism; Hydroxylation; Male; Microsomes, Liver/*metabolism; NADP/metabolism; Rats; Time Factors  
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  ISSN 0006-2952 ISBN Medium  
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  Notes PMID:10 Approved no  
  Call Number Admin @ knut @ Serial 20  
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Author Hare, B.; Brown, M.; Williamson, C.; Tomasello, M. doi  openurl
  Title The domestication of social cognition in dogs Type Journal Article
  Year 2002 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 298 Issue 5598 Pages (down) 1634-1636  
  Keywords Animals; *Animals, Domestic; *Behavior, Animal; *Cognition; *Cues; *Dogs; Food; Humans; Memory; Pan troglodytes; *Social Behavior; Species Specificity; Vision; Wolves  
  Abstract Dogs are more skillful than great apes at a number of tasks in which they must read human communicative signals indicating the location of hidden food. In this study, we found that wolves who were raised by humans do not show these same skills, whereas domestic dog puppies only a few weeks old, even those that have had little human contact, do show these skills. These findings suggest that during the process of domestication, dogs have been selected for a set of social-cognitive abilities that enable them to communicate with humans in unique ways.  
  Address Department of Anthropology, Harvard University, Cambridge, MA 02138, USA. bhare@fas.harvard.edu  
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  ISSN 1095-9203 ISBN Medium  
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  Notes PMID:12446914 Approved no  
  Call Number refbase @ user @ Serial 595  
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Author Hoglund, J.; Alatalo, R.V.; Gibson, R.M.; Lundberg, A. url  openurl
  Title Mate-choice copying in black grouse Type Journal Article
  Year 1995 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 49 Issue 6 Pages (down) 1627-1633  
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  Notes Approved no  
  Call Number Serial 1817  
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