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Equine and Animal Cognition Reference Database

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Author (up) Dugatkin, L.A. url  doi
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  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 (up) 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 (up) Dugatkin, L.A.; Wilson, D.S. url  doi
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  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 (up) Dumont, B.; Boissy, A.; Achard, C.; Sibbald, A.M.; Erhard, H.W. url  doi
openurl 
  Title Consistency of animal order in spontaneous group movements allows the measurement of leadership in a group of grazing heifers Type Journal Article
  Year 2005 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 95 Issue 1-2 Pages 55-66  
  Keywords Cattle; Grazing; Leadership; Movement order; Walking  
  Abstract The term `leadership' has been used in several different senses, resulting in very different ways of identifying leaders and apparently inconsistent conclusions on how leadership is determined in herbivores. We therefore propose the following definitions: (i) a leader is the individual that is consistently the one who initiates long-distance, spontaneous group movements toward a new feeding site and (ii) long-distance spontaneous group movements are movements which happen when an animal changes activity and location and is immediately followed by a similar change in activity and location by other members of the group. Using these definitions, we tested for consistency of movement order across time and situation within a group of fifteen 2-year-old heifers. We found that the same individual was recorded as the very first animal in 48% of movements toward a new feeding site and could therefore be identified as the `leader'. We also showed that movement order when the animals entered an experimental plot, or progressed slowly through the field during a grazing bout, did not produce the same result. This method, which enables us to identify leaders in groups of animals at pasture, should improve our knowledge of how leadership is determined in grazing herbivores.  
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  Call Number Equine Behaviour @ team @ room B 3.029 Serial 2027  
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Author (up) 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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  Notes PMID:817624 Approved no  
  Call Number Serial 2049  
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Author (up) Duncan, I.J.; Petherick, J.C. openurl 
  Title The implications of cognitive processes for animal welfare Type Journal Article
  Year 1991 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume 69 Issue 12 Pages 5017-5022  
  Keywords *Animal Welfare; Animals; Animals, Domestic/*psychology; *Cognition  
  Abstract In general, codes that have been designed to safeguard the welfare of animals emphasize the importance of providing an environment that will ensure good health and a normal physiological and physical state, that is, they emphasize the animals' physical needs. If mental needs are mentioned, they are always relegated to secondary importance. The argument is put forward here that animal welfare is dependent solely on the cognitive needs of the animals concerned. In general, if these cognitive needs are met, they will protect the animals' physical needs. It is contended that in the few cases in which they do not safeguard the physical needs, it does not matter from a welfare point of view. The human example is given of being ill. It is argued that welfare is only adversely affected when a person feels ill, knows that he or she is ill, or even thinks that he or she is ill, all of which processes are cognitive ones. The implications for welfare of animals possessing certain cognitive abilities are discussed. For example, the extent to which animals are aware of their internal state while performing behavior known to be indicative of so-called states of suffering, such as fear, frustration, and pain, will determine how much they are actually suffering. With careful experimentation it may be possible to determine how negative they feel these states to be. Similarly, the extent to which animals think about items or events absent from their immediate environment will determine how frustrated they are in the absence of the real item or event but in the presence of the cognitive representation.  
  Address University of Guelph, Canada  
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  Notes PMID:1808195 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2753  
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Author (up) Duncan, I.J.H. url  openurl
  Title D.G.M. Wood-Gush Memorial Lecture: An applied ethologist looks at the question “Why?” Type Journal Article
  Year 1995 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 44 Issue 2-4 Pages 205-217  
  Keywords Causation; Cognition; Function; Future research; Ontogeny; Phylogeny; States of suffering; Welfare  
  Abstract The question “Why does an animal behave as it does?” can be answered in terms of ontogeny, function, phylogeny and causation. The achievements of applied ethology relative to those four approaches are reviewed, gaps in our knowledge are identified and predictions for fruitful avenues of future research are made. Ontogenic studies have been useful in the past and it is suggested that studies of the effects of early experience on the sexual behaviour of animals used in artificial breeding schemes might pay dividends. It is proposed that functional studies should be approached cautiously. More information is required on the process of domestication in order to increase the chances of success in the trend to farm exotic species. Studies on causation are likely to continue to be the mainstay of applied ethological research. It is suggested that within this category, studies on states of suffering, motivation and cognition are urgently required to answer the most pressing questions on animal welfare.  
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  Call Number Equine Behaviour @ team @ Serial 2919  
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Author (up) Duncan, I.J.H.; Petherick, J.C. url  openurl
  Title Proceeding (Paper presented at the Winter Meeting of the Society for Veterinary Ethology, London, Great Britain, 30 November 1988)Cognition: The implications for animal welfare Type Journal Article
  Year 1989 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 24 Issue 1 Pages 81-1010  
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  Call Number Equine Behaviour @ team @ Serial 2921  
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Author (up) Duncan, P. url  doi
openurl 
  Title Foal killing by stallions Type Journal Article
  Year 1982 Publication Applied Animal Ethology Abbreviated Journal Appl. Animal. Ethol.  
  Volume 8 Issue 6 Pages 567-570  
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  Abstract Feral horses live in social systems similar to those of some species in which infant killing has been reported (e.g. lions), but such behaviour has been reported neither in horses nor in any other ungulate. The results of interviews with owners of free-ranging horses (Camargue breed) are given which show that, though rare, infant killing occurs in this breed, and that it seems to be confined to male foals. It is argued that the observed behaviour cannot simply be considered as pathological, and that close attention should be paid to the possibility that it occurs in wild and feral equids.  
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  Call Number Equine Behaviour @ team @ Serial 5260  
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Author (up) Duncan, P.; Vigne, N. url  doi
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  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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