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Author Kudo, H.; Dunbar, R.I.M. url  doi
openurl 
  Title Neocortex size and social network size in primates Type Journal Article
  Year 2001 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 62 Issue 4 Pages 711-722  
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  Abstract Primates use social grooming to service coalitions and it has been suggested that these directly affect the fitness of their members by allowing them to reduce the intrinsic costs associated with living in large groups. We tested two hypotheses about the size of grooming cliques that derive from this suggestion: (1) that grooming clique size should correlate with relative neocortex size and (2) that the size of grooming cliques should be proportional to the size of the groups they have to support. Both predictions were confirmed, although we show that, in respect of neocortex size, there are as many as four statistically distinct grades within the primates (including humans). Analysis of the patterns of grooming among males and females suggested that large primate social groups often consist of a set of smaller female subgroups (in some cases, matrilinearly based coalitions) that are linked by individual males. This may be because males insert themselves into the interstices between weakly bonded female subgroups rather than because they actually hold these subunits together.  
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  ISSN 0003-3472 ISBN Medium  
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  Call Number Equine Behaviour @ team @ Serial 4726  
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Author Lefebvre, L.; Whittle, P.; Lascaris, E.; Finkelstein, A. url  doi
openurl 
  Title Feeding innovations and forebrain size in birds Type Journal Article
  Year 1997 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 53 Issue 3 Pages 549-560  
  Keywords (up)  
  Abstract The links between ecology, behavioural plasticity and brain size are often tested via the comparative method. Given the problems in interpretating comparative tests of learning and cognition, however, alternative measures of plasticity need to be developed. From the short notes section of nine ornithological journals, two separate, exhaustive data sets have been collated on opportunistic foraging innovations in birds of North America (1973-1993;N=196) and the British Isles (1983-1993;N=126). Both the absolute and relative frequencies (corrected for species number per order) of innovations differ between bird orders in a similar fashion in the two geographical zones. Absolute and relative frequency of innovations per order are also related to two measures of relative forebrain size in the two zones. The study confirms predicted trends linking opportunism, brain size and rate of structural evolution. It also suggests that innovation rate in the field may be a useful measure of behavioural plasticity.  
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  Call Number Equine Behaviour @ team @ Serial 4740  
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Author Cheney, D.L.; Seyfarth, R.M. openurl 
  Title 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 Aureli, F.; Cossolino, R.; Cordischi, C.; Scucchi, S. url  doi
openurl 
  Title Kin-oriented redirection among Japanese macaques: an expression of a revenge system? Type Journal Article
  Year 1992 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 44 Issue 2 Pages 283-291  
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  Abstract The ability to recognize the close associates of other group members may permit the display of redirected aggression against the relatives of the former aggressor. However, the dominance structure and the kin-based alliance system of macaque society are expected not to favour the occurrence of this kin-oriented redirection. Nevertheless, within 1 h of being the victim of an attack, Japanese macaques, Macaca fuscata, were more likely to attack the former aggressor's kin than without such a conflict. The conditions under which the victim redirected against the former aggressor's kin were investigated. This kin-oriented redirection did not occur preferentially either after conflicts between individuals with unstable and/or uncertain dominance relationships or after conflicts with individuals that were unlikely to intervene in favour of their kin. Victims redirected against individuals that were younger than the former aggressor and often subordinate to the victim. They also redirected in an opportunistic way by joining polyadic interactions against the former aggressor's kin. The possibility that this kin-oriented redirection may have a long-term function in changing the aggressive attitude of the aggressor towards the victim is also discussed. In addition, the victim's kin also displayed a form of kin-oriented redirection. They were more likely to attack the kin of an individual after it had attacked their own kin.  
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  Notes 10.1016/0003-3472(92)90034-7 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4867  
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Author Manson, J.H. url  doi
openurl 
  Title Male aggression: a cost of female mate choice in Cayo Santiago rhesus macaques Type Journal Article
  Year 1994 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 48 Issue Pages 473-475  
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  Notes 10.1006/anbe.1994.1262 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4888  
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Author Manson, J.H. url  doi
openurl 
  Title Measuring female mate choice in Cayo Santiago rhesus macaques Type Journal Article
  Year 1992 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 44 Issue Pages 405-416  
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  Abstract Few studies of female mate choice have been carried out among free-ranging non-human primates. To qualify as female mate choice, behaviour by oestrous females must predict the occurrence or rate of potentially fertile copulations, in comparisons between heterosexual dyads. In this paper, data are presented to show three behaviour patterns that meet this criterion in free-ranging rhesus macaques, Macaca mulatta, at the island colony of Cayo Santiago: (1) selective cooperation with male sexual solicitations (hip-grasps), (2) restoration of proximity following attacks on females by intruding males, and (3) proximity maintenance (in one of two study groups). Oestrous females maintained proximity preferentially to lower ranking males, but this appeared to reflect differences in the tactics necessary to achieve copulations with males of different dominance ranks, rather than preference for lower ranking mates. Male-oestrous female dyads showed consistency over two consecutive mating seasons in which partner was responsible for proximity maintenance. Male dominance rank was positively correlated with copulatory rate with fertile females. However, in one study group, males to whom oestrous females maintained proximity more actively had higher copulatory rates with fertile females, independent of the effects of male dominance rank.  
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  Notes 10.1016/0003-3472(92)90051-A Approved no  
  Call Number Equine Behaviour @ team @ Serial 4889  
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Author Parker, G.A.; MacNair, M.R. url  doi
openurl 
  Title Models of parent-offspring conflict. I. Monogamy Type Journal Article
  Year 1978 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 26 Issue Pages 97-110  
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  Abstract Theoretical models for Trivers (1974) concept of parent-offspring conflict are examined for species in which the effects of the conflict are felt by full sibs. A rare conflictor gene will spread if Image , whereÆ’(m) is the fitness gained by a conflictor relative to a non-conflictor offspring (Æ’(m) >1), and m is the amount of parental investment taken by a conflictor relative to m = 1 for a non-conflictor. The range of m alleles which can spread against the parent optimum decreases as the cost to the parent increases until a point is reached where there is no conflict of evolutionary interests. There would be no polymorphism for conflictor: non-conflictor alleles unless special conditions prevail. The conflictor allele which spreads most rapidly as a rare mutant against the parental optimum is not an evolutionarily stable strategy (ESS). The ESS for parent-offspring conflict in monogamous species has m0 = Æ’(m0)/2[dÆ’(m0)/dm0]. The analytical solutions are confirmed throughout by simulations.  
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  Notes 10.1016/0003-3472(78)90009-X Approved no  
  Call Number Equine Behaviour @ team @ Serial 4901  
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Author Mulder, R.A.; Langmore, N.E. url  doi
openurl 
  Title Dominant males punish helpers for temporary defection in superb fairy-wrens Type Journal Article
  Year 1993 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 45 Issue Pages 830-833  
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  Notes 10.1006/anbe.1993.1100 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4922  
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Author Kasuya, E. url  doi
openurl 
  Title Mann-Whitney U test when variances are unequal Type Journal Article
  Year 2001 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 61 Issue 6 Pages 1247-1249  
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  Call Number Equine Behaviour @ team @ Serial 5048  
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Author Hemelrijk, C.K. url  doi
openurl 
  Title Models of, and tests for, reciprocity, unidirectionality and other social interaction patterns at a group level Type Journal Article
  Year 1990 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 39 Issue 6 Pages 1013-1029  
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  Abstract Research on reciprocity is impaired by confusing definitions and often wrongly used statistical tests. Here, two models of the mechanism on which reciprocity may be based are discussed and an initial step towards a new fremework for its analysis is presented. A distinction is made between reciprocity and interchange. In the case of reciprocity, for one kind of act the same kind is received in return. In interchange, however, two different kinds of acts are bartered. Three types of reciprocity/interchange in social actions among all pairs of group-members are distinguished ([`]qualitative', [`]relative' and [`]absolute') on the basis of the precision of the reciprocity/interchange. Permutation procedures for association between matrices (such as the Mantel Z and two other newly derived tests) are used as a statistical test for detecting reciprocity/interchange. A rough comparison of the power of the two new tests is included. The tests can be applied to all kinds of group-living animals and to all sorts of social behaviour. The distinction between the three types of reciprocity/interchange and the matching statistical methods are also useful for defining and detecting other patterns in social interactions, like unidirectionality and associations between different kinds of social behaviour. The influence on social interactions of variables like dominance rank, age and sex can be analysed in the three forms by testing correlations between invented matrices which represent the influence of these variables (the so-called hypothesis matrices) and social interaction matrices. These methods are extended for two categories of individuals, thus allowing the investigation of, for example, reciprocity between males and females. The methods are illustrated with examples of coalition formation and grooming behaviour among captive chimpanzees, Pan troglodytes.  
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  Call Number Equine Behaviour @ team @ Serial 5049  
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