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Author Keiper, R.R.; Sambraus, H.H.
Title (down) The stability of equine dominance hierarchies and the effects of kinship, proximity and foaling status on hierarchy rank Type Journal Article
Year 1986 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.
Volume 16 Issue 2 Pages 121-130
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Abstract Dominance hierarchies were determined in four bands of feral horses living on Assateague Island. The bands varied in size from 10 to 16 horses, and consisted of one stallion, several mares and their offspring. The animals ranged in age from less than 1 to over 18 years. Field observation of all social interactions during the summer of 1981 was used to determine dominance. 1981 hierarchies for three of the bands were compared with hierarchies determined for the same bands in 1978, and showed that hierarchies change over time. Age was significantly correlated with rank. Mares with foals did not rank any higher in the hierarchies than mares without foals. Kinship did not appear to have an effect on dominance rank either, since neither juvenile nor adult offspring ranks correlated with the ranks of their mothers. The band stallion was not the highest-ranking animal of any band, but the location of the stallion peripheral to the main body of the band, the nature of his interactions with band members, and his length of residence in the band may have contributed to his low rank.
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Notes Approved no
Call Number refbase @ user @ Serial 683
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Author de Waal, F.B.; Luttrell, L.M.
Title (down) The similarity principle underlying social bonding among female rhesus monkeys Type Journal Article
Year 1986 Publication Folia primatologica; international journal of primatology Abbreviated Journal Folia Primatol (Basel)
Volume 46 Issue 4 Pages 215-234
Keywords Aggression; Animals; Dominance-Subordination; Female; Grooming; *Group Processes; Macaca/*physiology; Macaca mulatta/*physiology; Male; *Object Attachment
Abstract Twenty adult female rhesus monkeys (Macaca mulatta) were observed over a three-year period. They lived in a mixed captive group with kinship relations known for three generations. The study's aim was to test Seyfarth's [J. theor. Biol. 65: 671-698, 1977] model of rank-related grooming and to investigate two other possible determinants of social bonding, i.e. relative age and the group's stratification into two social classes. Data on affiliation, coalitions, and social competition were collected by means of both focal observation and instantaneous time sampling. Whereas certain elements of the existing model were confirmed, its explanatory principles were not. Social competition did not result in more contact among close-ranking females (the opposite effect was found), and the relation between affiliative behavior and coalitions was more complex than predicted. Based on multivariate analyses and a comparison of theoretical models, we propose a simpler, more encompassing principle underlying interfemale attraction. According to this 'similarity principle', rhesus females establish bonds with females whom they most resemble. The similarity may concern genetical and social background, age, hierarchical position and social class. Effects of these four factors were independently demonstrated. The most successful model assumed that similarity factors influence female bonding in a cumulative fashion.
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ISSN 0015-5713 ISBN Medium
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Notes PMID:3557225 Approved no
Call Number refbase @ user @ Serial 211
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Author Cheney, D.L.; Seyfarth, R.M.
Title (down) The recognition of social alliances among vervet monkeys Type Journal Article
Year 1986 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 34 Issue Pages 1722-1731
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Call Number Equine Behaviour @ team @ Serial 4864
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Author Rau Re,
Title (down) The quagga and its kin Type Journal Article
Year 1986 Publication Abbreviated Journal Sagittarius 1
Volume Issue Pages 8-10
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1499
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Author Keiper Rr,
Title (down) The Przewalski horse ecosystem: programs and progress Type Book Chapter
Year 1986 Publication Majumdaret al : Endangered and threatened species programs in Pensylvania and other States Abbreviated Journal
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1254
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Author Fao,
Title (down) The Przewalski horse and restoration to its natural habitat in Mongolia. JO FAO Animal Production and Health Paper Type Journal Article
Year 1986 Publication Abbreviated Journal Animal Production and Health Paper
Volume 61 Issue Pages
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Notes from Prof. Hans Klingels Equine Reference List Approved no
Call Number Serial 1078
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Author Svendsen Ed,
Title (down) The professional handbook of the donkey Type Book Whole
Year 1986 Publication Sovereign Printing Group Abbreviated Journal
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Publisher Place of Publication England Editor
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1639
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Author de Waal, F.B.
Title (down) The integration of dominance and social bonding in primates Type Journal Article
Year 1986 Publication The Quarterly review of biology Abbreviated Journal Q Rev Biol
Volume 61 Issue 4 Pages 459-479
Keywords Animals; Female; Humans; Male; *Object Attachment; *Primates; *Social Dominance
Abstract Social dominance is usually viewed from the perspective of intragroup competition over access to limited resources. The present paper, while not denying the importance of such competition, discusses the dominance concept among monkeys and apes in the context of affiliative bonding, social tolerance, and the reconciliation of aggressive conflicts. Two basic proximate mechanisms are supposed to provide a link between dominance and interindividual affiliation, namely, formalization of the dominance relationship (i.e., unequivocal communication of status), and conditional reassurance (i.e., the linkage of friendly coexistence to formalization of the relationship). Ritualized submission is imposed upon losers of dominance struggles by winners; losers are offered a “choice” between continued hostility or a tolerant relationship with a clearly signalled difference in status. If these two social mechanisms are lacking, aggression is bound to have dispersive effects. In their presence, aggression becomes a well-integrated, even constructive component of social life. In some higher primates this process of integration has reached the stage where status differences are strongly attenuated. In these species, sharing and trading can take the place of overt competition. The views underlying this “reconciled hierarchy” model are only partly new, as is evident from a review of the ethological literature. Many points are illustrated with data on a large semi-captive colony of chimpanzees (Pan troglodytes), particularly data related to striving for status, reconciliation behavior, and general association patterns. These observations demonstrate that relationships among adult male chimpanzees cannot be described in terms of a dichotomy between affiliative and antagonistic tendencies. Male bonding in this species has not been achieved by an elimination of aggression, but by a set of powerful buffering mechanisms that mitigate its effects. Although female chimpanzees do exhibit a potential for bonding under noncompetitive conditions, they appear to lack the buffering mechanisms of the males.
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ISSN 0033-5770 ISBN Medium
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Notes PMID:3543991 Approved no
Call Number refbase @ user @ Serial 210
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Author Heird, J.C.; Whitaker, D.D.; Bell, R.W.; Ramsey, C.B.; Lokey, C.E.
Title (down) The effects of handling at different ages on the subsequent learning ability of 2-year-old horses Type Journal Article
Year 1986 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.
Volume 15 Issue 1 Pages 15-25
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Abstract Forty weanling Quarter Horses, from the Pitchfork Ranch, Dickens, Texas, were randomly assigned to one of five groups based on the amount of handling they would receive. The five groups were: (1) limited handling; (2) 1 week of handling; (3) 2 weeks of handling; (4) 3 weeks of handling; (5) continuous handling for 18 months. As 2-year-olds, the horses were tested in a simple place-learning T-maze after being preconditioned. A maximum of 30 daily trials were conducted for 20 consecutive days, with feed location alternating between sides on successive days. If a horse met the criterion of 11 out of 12 correct responses with 8 correct responses being consecutive, it was retired without completing the 30 trials. Group 1 made fewer correct responses during the 20 days than any other group except Group 3. All groups achieved learning by Day 10, but the most-handled group reached a consistently higher percentage of correct responses earlier than the less-handled groups. Group 5, the group receiving the most handling, was the least emotional, as determined by the animals' reactivity to a novel stimulus, and received the highest scores for trainability after being ridden. Preconditioning trainability scores, or estimates of the horses' ability to learn prior to conditioning and testing, tended to predict maze-learning ability. These scores were also significantly correlated with post-maze training scores.
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 3590
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Author Nelissen, M.H.J.
Title (down) The effect of tied rank numbers on the linearity of dominance hierarchies Type Journal Article
Year 1986 Publication Behavioural Processes Abbreviated Journal Behav. Process.
Volume 12 Issue 2 Pages 159-168
Keywords dominance hierarchy, linearity, Landau's index, despotism
Abstract The occurence of tied rank numbers in dominance hierarchies is discussed, especially its effect on the linearity of the hierarchy. This linearity is measured with Landau's index, that is calculated for several hierarchies with tied ranks on one, two of three levels. Linearity is mostly affected by ties in small groups with many ties. A distinction is made between a hierarchy of individuals and hierarchical levels. The phenomenon of despotism is called an extreme case of tied ranks. It is proposed to regard hierarchies with a linearity in a continuous scale.
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Call Number Equine Behaviour @ team @ Serial 4285
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