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Author Fraser, N.O.; Schino,G.; Aureli, F.F doi  openurl
  Title Components of Relationship Quality in Chimpanzees Type Journal Article
  Year 2008 Publication Ethology Abbreviated Journal Ethology  
  Volume 114 Issue 9 Pages 834-843  
  Keywords  
  Abstract A novel approach to studying social relationships in captive adult chimpanzees (Pan troglodytes) was taken by using principal components analysis (PCA) to extract three key components of relationship quality from nine behavioural variables. Based on the loadings of the behavioural variables, the components appeared to match previously hypothesized critical aspects of social relationships and were therefore labelled Value, Compatibility and Security. The effects of kinship, sex combination, age difference and time spent together on each of the relationship quality components were analysed. As expected, kin were found to have more valuable, compatible and secure relationships than non-kin. Female2013female dyads were found to be more compatible than male2013male or mixed-sex dyads, whereas the latter were found to be most secure. Partners of a similar age were found to have more secure and more valuable relationships than those with a larger age gap. Individuals that were together in the group for longer were more valuable and more compatible, but their relationships were found to be less secure than individuals that were together in the group for a shorter time. Although some of the results may be unexpected based on chimpanzee socio-ecology, they fit well overall with the history and social dynamics of the study group. The methods used confer a significant advantage in producing quantitative composite measures of each component of relationship quality, obtained in an objective manner. These findings therefore promote the use of such measures in future studies requiring an assessment of the qualities of dyadic social relationships.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4936  
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Author Giada Cordoni; Elisabetta Palagi doi  openurl
  Title Reconciliation in Wolves (Canis lupus) – New Evidence for a Comparative Perspective Type Journal Article
  Year 2008 Publication Ethology Abbreviated Journal Ethology  
  Volume 114 Issue Pages 298 - 308  
  Keywords  
  Abstract Social animals gain benefits from cooperative behaviours. However, social systems also imply competition and conflict of interest. To cope with dispersal forces, group-living animals use several peace-keeping tactics, which have been deeply investigated in primates. Other taxa, however, have been often neglected in this field research. Wolves (Canis lupus) with their high sociality and cooperative behaviour may be a good model species to investigate the reconciliation process. In this study, we provide the first evidence for the occurrence of reconciliation in a group of zoo-kept wolves. The conciliatory contacts were uniformly distributed across the different sex-class combinations. We found a linear dominance hierarchy in the colony under study, although the hierarchical relationships did not seem to affect the reconciliation dynamics. Moreover, both aggressors and victims initiated first post-conflict affinitive contact with comparable rates and both high- and low-intensity conflicts were reconciled with similar percentages. Finally, we found that coalitionary support may be a good predictor for high level of conciliatory contacts in this species.  
  Address Centro Interdipartimentale Museo di Storia Naturale e del Territorio, Universit di Pisa, Pisa, Italy; Giardino Zoologico di Pistoia, Pistoia, Italy DOI – 10.1111/j.1439-0310.2008.01474.x  
  Corporate Author Thesis  
  Publisher Place of Publication © 2008 The Authors Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
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  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4937  
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Author Bates, L.A.; Sayialel, K.N.; Njiraini, N.W.; Poole, J.H.; Moss, C.J.; Byrne, R.W. doi  openurl
  Title African elephants have expectations about the locations of out-of-sight family members Type Journal Article
  Year 2008 Publication Biology Letters Abbreviated Journal Biol Lett  
  Volume 4 Issue 1 Pages 34-36  
  Keywords elephants, olfaction, urine, individual recognition  
  Abstract Monitoring the location of conspecifics may be important to social mammals. Here, we use an expectancy-violation paradigm to test the ability of African elephants (Loxodonta africana) to keep track of their social companions from olfactory cues. We presented elephants with samples of earth mixed with urine from female conspecifics that were either kin or unrelated to them, and either unexpected or highly predictable at that location. From behavioural measurements of the elephants' reactions, we show that African elephants can recognize up to 17 females and possibly up to 30 family members from cues present in the urine-earth mix, and that they keep track of the location of these individuals in relation to themselves.  
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  Area Expedition Conference  
  Notes Approved yes  
  Call Number Equine Behaviour @ team @ Serial 4332  
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Author Goodwin, D.; McGreevy, P.D.; Heleski, C.; Randle, H.; Waran, N. doi  openurl
  Title Equitation science: The application of science in equitation Type Journal Article
  Year 2008 Publication Journal of Applied Animal Welfare Science Abbreviated Journal  
  Volume 11 Issue 3 Pages 185-190  
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  Abstract  
  Address School of Natural Sciences, Unitec, New Zealand  
  Corporate Author Thesis  
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  Notes Export Date: 13 November 2008; Source: Scopus Approved no  
  Call Number Equine Behaviour @ team @ Serial 4656  
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Author Bosch, O.J.; Nair, H.P.; Ahern, T.H.; Neumann, I.D.; Young, L.J. doi  openurl
  Title The CRF System Mediates Increased Passive Stress-Coping Behavior Following the Loss of a Bonded Partner in a Monogamous Rodent Type Journal Article
  Year 2008 Publication Abbreviated Journal Neuropsychopharmacology  
  Volume 34 Issue 6 Pages 1406-1415  
  Keywords prairie vole; passive stress-coping; forced swim test; tail suspension test; elevated plus-maze; hypothalamo–pituitary–adrenal axis  
  Abstract Social relationships significantly influence physiology and behavior, including the hypothalamo–pituitary–adrenal axis, anxiety, and mental

health. Disruption of social bonds through separation or death often results in profound grieving, depression, and physical illness. As the

monogamous prairie vole forms enduring, selective pair bonds with the mating partner, they provide an animal model to study the

physiological consequences of pair bonding and, thus, the loss of the bonded partner. Male prairie voles were paired with a novel female

or male sibling. After 5 days, half of the males of each group were separated from the partner. Elevated plus-maze, forced swim, and tail

suspension tests were used to assess anxiety-like and passive stress-coping behaviors indicative of depressive-like behavior. Following 4

days of separation from the female but not the male partner, experimental males displayed increased passive stress-coping. This effect

was abolished by long-term intracerebroventricular infusion of a nonselective corticotropin-releasing factor (CRF) receptor antagonist

without disrupting the bond itself. Both CRF type 1 and 2 receptors were involved in the emergence of passive stress-coping behavior.

Furthermore, pairing with a female was associated with elevated CRF mRNA in the bed nucleus of the stria terminalis, and partner loss

elicited a pronounced increase in circulating corticosteroid and adrenal weight. We speculate that the CRF system may mediate an

aversive affect following separation from the female partner, which may facilitate proximity seeking between the pair-bonded individuals.

Hence, the prairie vole model may provide insights into brain mechanisms involved in the psychopathological consequences of partner

loss.
 
  Address  
  Corporate Author Thesis  
  Publisher American College of Neuropsychopharmacology Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0893-133x ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5731  
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Author Behrens, T.E.J.; Hunt, L.T.; Woolrich, M.W.; Rushworth, M.F.S. doi  openurl
  Title Associative learning of social value Type Journal Article
  Year 2008 Publication Abbreviated Journal Nature  
  Volume 456 Issue 7219 Pages 245-249  
  Keywords  
  Abstract Our decisions are guided by information learnt from our environment. This information may come via personal experiences of reward, but also from the behaviour of social partners1, 2. Social learning is widely held to be distinct from other forms of learning in its mechanism and neural implementation; it is often assumed to compete with simpler mechanisms, such as reward-based associative learning, to drive behaviour3. Recently, neural signals have been observed during social exchange reminiscent of signals seen in studies of associative learning4. Here we demonstrate that social information may be acquired using the same associative processes assumed to underlie reward-based learning. We find that key computational variables for learning in the social and reward domains are processed in a similar fashion, but in parallel neural processing streams. Two neighbouring divisions of the anterior cingulate cortex were central to learning about social and reward-based information, and for determining the extent to which each source of information guides behaviour. When making a decision, however, the information learnt using these parallel streams was combined within ventromedial prefrontal cortex. These findings suggest that human social valuation can be realized by means of the same associative processes previously established for learning other, simpler, features of the environment.  
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  Publisher Macmillan Publishers Limited. All rights reserved Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0028-0836 ISBN Medium  
  Area Expedition Conference  
  Notes 10.1038/nature07538 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4681  
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Author Dreber, A.; Rand, D.G.; Fudenberg, D.; Nowak, M.A. doi  openurl
  Title Winners don/'t punish Type Journal Article
  Year 2008 Publication Abbreviated Journal Nature  
  Volume 452 Issue 7185 Pages 348-351  
  Keywords  
  Abstract A key aspect of human behaviour is cooperation1, 2, 3, 4, 5, 6, 7. We tend to help others even if costs are involved. We are more likely to help when the costs are small and the benefits for the other person significant. Cooperation leads to a tension between what is best for the individual and what is best for the group. A group does better if everyone cooperates, but each individual is tempted to defect. Recently there has been much interest in exploring the effect of costly punishment on human cooperation8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23. Costly punishment means paying a cost for another individual to incur a cost. It has been suggested that costly punishment promotes cooperation even in non-repeated games and without any possibility of reputation effects10. But most of our interactions are repeated and reputation is always at stake. Thus, if costly punishment is important in promoting cooperation, it must do so in a repeated setting. We have performed experiments in which, in each round of a repeated game, people choose between cooperation, defection and costly punishment. In control experiments, people could only cooperate or defect. Here we show that the option of costly punishment increases the amount of cooperation but not the average payoff of the group. Furthermore, there is a strong negative correlation between total payoff and use of costly punishment. Those people who gain the highest total payoff tend not to use costly punishment: winners don't punish. This suggests that costly punishment behaviour is maladaptive in cooperation games and might have evolved for other reasons.  
  Address  
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  Publisher Nature Publishing Group Place of Publication Editor  
  Language Summary Language Original Title  
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  ISSN 0028-0836 ISBN Medium  
  Area Expedition Conference  
  Notes 10.1038/nature06723 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4406  
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Author Milinski, M.; Rockenbach, B. doi  openurl
  Title Human behaviour: Punisher pays Type Journal Article
  Year 2008 Publication Abbreviated Journal Nature  
  Volume 452 Issue 7185 Pages 297-298  
  Keywords  
  Abstract The tendency of humans to punish perceived free-loaders, even at a cost to themselves, is an evolutionary puzzle: punishers perish, and those who benefit the most are those who have never punished at all.

Humans are champions of cooperation. Reciprocity – the idea that, if I help you this time, you'll help me next time1 – is a secret of our success.
 
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  Publisher Nature Publishing Group Place of Publication Editor  
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  ISSN 0028-0836 ISBN Medium  
  Area Expedition Conference  
  Notes 10.1038/452297a Approved no  
  Call Number Equine Behaviour @ team @ Serial 4405  
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Author Romero, T.; Aureli, F. doi  openurl
  Title Reciprocity of support in coatis (Nasua nasua) Type Journal Article
  Year 2008 Publication Journal of Comparative Psychology Abbreviated Journal  
  Volume 122 Issue 1 Pages 19-25  
  Keywords *Animal Aggressive Behavior; *Animal Social Behavior; *Mammals; Reciprocity  
  Abstract Primate sociality has received much attention and its complexity has been viewed as a driving force for the evolution of cognitive abilities. Improved analytic techniques have allowed primate researchers to reveal intricate social networks based on the exchange of cooperative acts and services. Although nonprimates are known to show similar behavior (e.g., cooperative hunting, food sharing, coalitions) there seems a consensus that social life is less complex than in primates. Here the authors present the first group-level analysis of reciprocity of social interactions in a social carnivore, the ring-tailed coati (<xh:i xmlns:search=“http://marklogic.com/appservices/search” xmlns=“http://apa.org/pimain” xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance” xmlns:xh=“http://www.w3.org/1999/xhtml”>Nasua nasua</xh:i>). The authors found that support in aggressive conflicts is a common feature in coatis and that this behavior is reciprocally exchanged in a manner seemingly as complex as in primates. Given that reciprocity correlations persisted after controlling for the effect of spatial association and subunit membership, some level of scorekeeping may be involved. Further studies will be needed to confirm our findings and understand the mechanisms underlying such reciprocity, but our results contribute to the body of work that has begun to challenge primate supremacy in social complexity and cognition. (PsycINFO Database Record (c) 2012 APA, all rights reserved)  
  Address Romero, Teresa: Living Links, Yerkes National Primate Research Center, Emory University, 954 N. Gatewood Road, Atlanta, GA, US, 30329, mromer2@emory.edu  
  Corporate Author Thesis  
  Publisher American Psychological Association Place of Publication Us Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1939-2087(Electronic);0735-7036(Print) ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ 2008-01944-003 Serial 5812  
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Author Bertolucci, C.; Giannetto, C.; Fazio, F.; Piccione, G. doi  openurl
  Title Seasonal variations in daily rhythms of activity in athletic horses Type Journal Article
  Year 2008 Publication Animal Abbreviated Journal Animal  
  Volume 2 Issue 07 Pages 1055-1060  
  Keywords  
  Abstract Circadian rhythms reflect extensive programming of biological activity that meets and exploits the challenges and opportunities offered by the periodic nature of the environment. In the present investigation, we recorded the total activity of athletic horses kept at four different times of the year (vernal equinox, summer solstice, autumn equinox and winter solstice), to evaluate the presence of seasonal variations of daily activity rhythms. Athletic Thoroughbred horses were kept in individual boxes with paddock. Digitally integrated measure of total activity of each mare was continuously recorded by actigraphy-based data loggers. Horse total activities were not evenly distributed over the day, but they were mainly diurnal during the year. Daily activity rhythms showed clear seasonal variations, with the highest daily amount of activity during the vernal equinox and the lowest during the winter solstice. Interestingly, the amount of activity during either photophase or scotophase changed significantly throughout the year. Circadian analysis of horse activities showed that the acrophase, the estimated time at which the peak of the rhythm occurs, did not change during the year, it always occurred in the middle of the photoperiod. Analysing the time structure of long-term and continuously measured activity and feeding could be a useful method to critically evaluate athletic horse management systems in which spontaneous locomotor activity and feeding are severely limited. Circadian rhythms are present in several elements of sensory motor and psychomotor functions and these would be taken into consideration to plan the training schedules and competitions in athletic horses.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4823  
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