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Equine and Animal Cognition Reference Database

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Author R. A. J. Taylor doi  openurl
  Title The Behavioural Basis of Redistribution I. The Delta -Model Concept Type Journal Article
  Year 1981 Publication The Journal of Animal Ecology Abbreviated Journal T. J. Anim. Ecol.  
  Volume 50 Issue 2 Pages 573-586  
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  Abstract (1) A conceptual model is developed in which spatial behaviour is density-dependent. The behaviour is classified as congregatory or migratory according to whether it results in movement towards or away from population concentrations. (2) Spatial behaviour is shown to result from both individual and population interactions. (3) The stability properties of the model are explored and it is shown how, under particular conditions, populations obeying the model have a population density regulating mechanism. (4) The similarity between the model and the potential energy curve of physics is noted, but it is emphasized that this is a behavioural not a physical model.  
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  Call Number refbase @ user @ Serial 720  
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Author Bannikov Ag, openurl 
  Title Kulan Moskau Type Book Whole
  Year 1981 Publication Abbreviated Journal  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 921  
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Author Gingerich Pd, openurl 
  Title Variation, sexual dimorphism, and social structure in the early Eocene horse Hyracotherium Type Journal Article
  Year 1981 Publication Abbreviated Journal Paleobiol  
  Volume Issue Pages 443-455  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1110  
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Author Kaseda Y, openurl 
  Title The structure of the groups of Misaki horses in Toi Cape Type Journal Article
  Year 1981 Publication Abbreviated Journal Jpn. J Zootech Sci  
  Volume 52 Issue Pages 227-235  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1233  
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Author Rubenstein Di, openurl 
  Title Behavioural ecology of island feral horeses Type Journal Article
  Year 1981 Publication Abbreviated Journal Equine. Vet. J.  
  Volume 13 Issue Pages 27-34  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1524  
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Author SchäFer M, openurl 
  Title Beobachtungen zum interspezifischen Aggressionsverhalten eines Halbeselhybrid Type Journal Article
  Year 1981 Publication Abbreviated Journal Säugetierk Mitt  
  Volume 29 Issue Pages 49-58  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1560  
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Author Partridge, B.L. doi  openurl
  Title Internal dynamics and the interrelations of fish in schools Type Journal Article
  Year 1981 Publication Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology Abbreviated Journal J Comp Physiol Sensory Neural Behav Physiol  
  Volume 144 Issue 3 Pages 313-325  
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  Abstract The three-dimensional structure of schools of saithe (Pollachius virens) and the interactions between individuals over time were analyzed in 12,240 frames of videotape sampled at 2.7 Hz. Time series analyses of the interactions between identified individuals allowed testing of assumptions of anonymity vs. leadership in schools and investigation of the transfer of information between individuals by which collective decisions are made. Results include the following:1.Saithe match changes in both swimming direction and speed of their neighbors but correlations are greater for swimming speed. Average speed of the school does not greatly affect correlations between neighboring fish although the reaction latencies may be somewhat increased. As shown previously (Partridge et al. 1980) nearest neighbor distance (NND) decreases with increasing school velocity.2.Saithe simultaneously match the headings and swimming speeds of at least their first two nearest neighbors within the school (NN1 and NN2). Partialling out the correlation between a fish's neighbors demonstrates that a fish's correlation to his second nearest neighbor (NN2) is not simply a transitive function of mutual correlation between the NN1 and NN2.3.Several sources of individual variation in schooling performance were examined. In all respects except one, that of preferred positions within the school, saithe showed no individual differences, i.e., some were not “better schoolers” than others. Although fish in the school differed in length by up to a factor of 2.5, no size related effects in NND or nearest neighbor positioning were found.4.Single Linkage Cluster Analysis (SLCA) of the cross-correlations of fishs' swimming speeds and directions demonstrated quantitatively the existence of subgroups within schools if they contain more than 10-11 members. Subgroups acting more-or-less independently in terms of short term variations in speed and direction nonetheless remained within the school as a whole and were not often apparent to observers since members of one group interdigitated with those of another. How individuals know to which subgroup they belong remains unanswered.  
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  Notes Approved no  
  Call Number Serial 2063  
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Author Cambefort, J.P. openurl 
  Title A comparative study of culturally transmitted patterns of feeding habits in the chacma baboon Papio ursinus and the vervet monkey Cercopithecus aethiops Type Journal Article
  Year 1981 Publication Folia Primatologica; International Journal of Primatology Abbreviated Journal Folia Primatol (Basel)  
  Volume 36 Issue 3-4 Pages 243-263  
  Keywords Age Factors; Animals; *Cercopithecus; *Cercopithecus aethiops; Culture; *Feeding Behavior; Female; Group Structure; Learning; Male; *Papio; Social Class; Teaching  
  Abstract Japanese workers have studied social acquisition patterns of new feeding habits in Macaca fuscata which they have termed precultural. The present study investigates the same phenomenon in the chacma baboon and the vervet monkey in their natural habitat. The questions addressed are: (1) How a new feeding habit enters a troop and by which age and sex category, also how it is propagated? (2) When individuals are permitted with a choice between palatable and unpalatable food, can they learn by demonstration only or do they have to pass through a direct learning process? (3) Can the results from the above questions be explained by social parameters such as the social structure of the individual species? It was found that juvenile baboons discover new food and that after the discovery propagation is instantaneous. In vervets discovery is random among the age classes and propagation is slow and takes place through certain 'pivot' individuals. Both species fail to learn about palatability by demonstration but have to go through a direct learning process. This contrasts strongly with the forest baboon Mandrillus sphinx that have been shown to learn by demonstration. Socially, baboon juveniles stay closer to each other than the adults who force them to live at the periphery of the troop. Vervets again forage without precise sub-group formation. The link between social and cultural propagation and social structure is discussed on the basis of these findings.  
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  ISSN 0015-5713 ISBN Medium  
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  Notes PMID:7319426 Approved no  
  Call Number Serial 2087  
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Author Roberts, J.; Hunter, M.L.; Kacelnik, A. url  openurl
  Title The ground effect and acoustic communication Type Journal Article
  Year 1981 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 29 Issue 2 Pages 633-634  
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  Notes Approved no  
  Call Number Serial 2123  
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Author Miller, R. openurl 
  Title Male aggression, dominance and breeding behaviour in Red Desert feral horses Type Journal Article
  Year 1981 Publication Zeitschrift fur Tierpsychologie Abbreviated Journal Z. Tierpsychol.  
  Volume 57 Issue Pages 340-201  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2374  
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