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Author (down) Eccles, T.R.; Shackleton, D.M. url  doi
openurl 
  Title Correlates and consequences of social status in female bighorn sheep Type Journal Article
  Year 1986 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 34 Issue 5 Pages 1392-1401  
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  Abstract Dominance-subordinance relationships among a captive group of adule bighorn sheep (Ovis canadensis californiana) were studied from May 1977 to December 1978. Social interactions between females were brief in duration and infrequent. Although a dominance hierarchy was evident among the females, it was not linear. Horn length and body weight were not consistently correlated with social status. The highest ranking females were the most aggressive individuals, initiating more agonistic interactions than subordinates. Females with high social status did not have higher quality diets, lower activity costs, or higher productivity than low ranking females.  
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  Call Number refbase @ user @ Serial 753  
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Author (down) Earley, R.L.; Druen, M.; Alan Dugatkin, L. doi  openurl
  Title Watching fights does not alter a bystander's response towards naive conspecifics in male green swordtail fish, Xiphophorus helleri Type Journal Article
  Year 2005 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 69 Issue 5 Pages 1139-1145  
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  Abstract Bystanders are capable of extracting cues from signalling interactions between others and appear to use information gained via eavesdropping when confronted with the watched individuals. A question that has gained little attention is whether observing fights affects bystander behaviour outside the context of interacting with the watched individuals. Our aim was to determine whether watching fights elicits general changes in bystander aggression levels in Xiphophorus helleri. We manipulated the bystanders' ability to witness encounters using clear, one-way-mirror and opaque partitions. After watching (or not watching) an initial contest, the bystanders were pitted against naive conspecifics instead of the animals they had seen fight. Observing fights did not alter the bystanders' propensity to initiate aggression, escalate, or win against naive individuals, indicating that bystanders do not experience general changes in aggressive behaviour after watching a fight. Earlier work in this species, however, has shown that bystanders respond in predictable ways to individuals they have witnessed winning or losing a fight. Taken together, these data support the notion that bystanders consistently modify their behaviour towards previously watched winners or losers in response to information gained via eavesdropping. We discuss our results in light of some recent work on the behavioural and endocrinological responses triggered by watching fights and suggest that comparative approaches to understanding networking phenomena may be productive.  
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  Call Number refbase @ user @ Serial 394  
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Author (down) Duncan, P.; Vigne, N. url  doi
openurl 
  Title The effect of group size in horses on the rate of attacks by blood-sucking flies Type Journal Article
  Year 1979 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 27 Issue Part 2 Pages 623-625  
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  Call Number refbase @ user @ Serial 763  
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Author (down) Dunbar, R.I.; Dunbar, E.P. doi  openurl
  Title Contrasts in social structure among black-and-white colobus monkey groups Type Journal Article
  Year 1976 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 24 Issue 1 Pages 84-92  
  Keywords Agonistic Behavior; Animals; *Colobus; Copulation; Female; *Haplorhini; *Hierarchy, Social; Male; *Social Dominance  
  Abstract Three types of Colobus guereza groups may be distinguished on the bases of size and composition, namely small one-male groups, large, one-male groups and multi-male groups. The social structure of each type of group is described in terms of the distribution of non-agonistic interactions, the frequency and distribution of agonistic behaviour and the organization of the roles of vigilance, territorial defence and leadership. A number of differences are found between the group types which appear to be related to the differences in group size and composition. It is suggested that these group types represent stages in the life-cycle of colobus groups, and that such an interpretation may help to resolve some of the conflicting reports in the literature.  
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  ISSN 0003-3472 ISBN Medium  
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  Notes PMID:817624 Approved no  
  Call Number Serial 2049  
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Author (down) Dugatkin, L.A.; Wilson, D.S. url  doi
openurl 
  Title Choice experiments and cognition: a reply to Lamprecht & Hofer Type Journal Article
  Year 1994 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 47 Issue 6 Pages 1459-1461  
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  Call Number refbase @ user @ Serial 479  
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Author (down) Dugatkin, L.A. url  doi
openurl 
  Title Tit for Tat, by-product mutualism and predator inspection: a reply to Connor Type Journal Article
  Year 1996 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 51 Issue 2 Pages 455-457  
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  Call Number refbase @ user @ Serial 487  
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Author (down) Dugatkin, L.A. url  openurl
  Title A comment on Lafleur et al.'s re-evaluation of mate-choice copying in guppies Type Journal Article
  Year 1998 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 56 Issue 2 Pages 513-514  
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  Call Number Serial 1812  
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Author (down) 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 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 (down) di Bitetti, M.S.; Janson, C.H. url  doi
openurl 
  Title Social foraging and the finder's share in capuchin monkeys, Cebus apella Type Journal Article
  Year 2001 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 62 Issue 1 Pages 47-56  
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  Abstract Group living can confer advantages to individuals, but it can also impose severe costs through resource competition. Kleptoparasitism is one example in which some individuals (joiners) can exploit the food discovered by other animals (finders). This type of social foraging has been modelled either as an information-sharing model or as a producer-scrounger game. An important variable in these models is the finder's advantage: the number of items obtained by the finder before the arrival of other individuals. In this study we describe how the spatial position and rank of individuals in a group of wild tufted capuchin monkeys affect their ability to discover and exploit new food sources. We also analyse the factors that affect the finder's share and the total amount of food obtained by the finder from a newly discovered resource. By placing platforms filled with bananas at novel locations in their home range, we show that animals in the leading edge of a foraging group have a higher probability of discovering new food sources than animals occupying other spatial positions. The alpha male and the alpha female, which tended to occupy central-forward positions, were able to monopolize newly discovered food sources and thus obtain a major share of them. The finder's share at the feeding platforms was smaller when there was more food on a platform, but increased with longer delays before the arrival of other individuals. The total amount of food obtained by the finder from the feeding platforms was larger when there was more food on the platform, when the finder was of higher social status, and when it took longer for other individuals to arrive. Animals can increase their finder's share and total amount consumed from a newly discovered resource by keeping large interindividual distances and by avoiding giving cues about the presence of food (such as food-associated vocalizations) to other animals.  
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  Call Number Serial 2078  
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Author (down) Di Bitetti, M.S. url  doi
openurl 
  Title Evidence for an important social role of allogrooming in a platyrrhine primate Type Journal Article
  Year 1997 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 54 Issue 1 Pages 199-211  
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  Abstract Allogrooming behaviour was analysed in a wild group of tufted capuchin monkeys,Cebus apellain Iguazu National Park, Argentina. Evidence is provided that allogrooming in this platyrrhine species serves an important social function, as has been demonstrated for catarrhine primates. Using ad libitum sampling, 654 grooming sessions were recorded during 740 contact hours with one group. Seasonal variation was found in daily time allocation to allogrooming and the mean duration and reciprocity of sessions. Individual dominance rank was an important determinant of grooming relationships. The dominant male and female were the most actively involved in grooming. Among adults, dominant individuals were involved in more sessions than were subordinate individuals. The females maintained strong grooming relationships with each other and tended to reciprocate more within sessions than did males. Oestrous females engaged in more grooming bouts with adult males than did non-oestrous females. Females with newborn infants were attractive social partners for the remaining members of the group. A social function for allogrooming inCebusis indicated by the close relationship between allogrooming, the social system and coalition formation, and by the changes in quantity and direction of grooming in response to oestrous behaviour and to the birth of infants.  
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  Notes Approved no  
  Call Number Serial 2079  
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