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Author Harrington, F.H. url  doi
openurl 
  Title (up) Aggressive howling in wolves Type Journal Article
  Year 1987 Publication Anim Behav Abbreviated Journal  
  Volume 35 Issue Pages  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Harrington1987 Serial 6457  
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Author DOBRORUKA LJ et al, openurl 
  Title (up) An analysis of the population of Grevy's zebra Type Journal Article
  Year 1987 Publication Abbreviated Journal Int Zoo Yb  
  Volume 26 Issue Pages 290-293  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1018  
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Author Tizard I. openurl 
  Title (up) An introduction to veterinary immunology. Type Book Whole
  Year 1987 Publication Abbreviated Journal  
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  Corporate Author Thesis  
  Publisher WB Saunders Co. Place of Publication Philadelphia Editor  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6000  
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Author Huntingford, F.; Turner, A. openurl 
  Title (up) Animal Conflict Type Miscellaneous
  Year 1987 Publication Abbreviated Journal  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4850  
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Author Terrace, H.S. doi  openurl
  Title (up) Chunking by a pigeon in a serial learning task Type Journal Article
  Year 1987 Publication Nature Abbreviated Journal Nature  
  Volume 325 Issue 7000 Pages 149-151  
  Keywords Animals; Cognition/*physiology; Columbidae/*physiology; Feedback; Learning/*physiology; Male  
  Abstract A basic principle of human memory is that lists that can be organized into memorable 'chunks' are easier to remember. Memory span is limited to a roughly constant number of chunks and is to a large extent independent of the amount of informaton contained in each chunk. Depending on the ingenuity of the code used to integrate discrete items into chunks, one can substantially increase the number of items that can be recalled correctly. Newly developed paradigms for studying memory in non-verbal organisms allow comparison of the abilities of human and non-human subjects to memorize lists. Here I present two types of evidence that pigeons 'chunk' 5-element lists whose components (colours and achromatic geometric forms) are clustered into distinct groups. Those lists were learned twice as rapidly as a homogeneous list of colours or heterogeneous lists in which the elements are not clustered. The pigeons were also tested for knowledge of the order of two elements drawn from the 5-element lists. They responded in the correct order only to those subsets that contained a chunk boundary. Thus chunking can be studied profitably in animal subjects; the cognitive processes that allow an organism to form chunks do no presuppose linguistic competence.  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0028-0836 ISBN Medium  
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  Notes PMID:3808071 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2792  
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Author Penzhorn Bl, L.P. openurl 
  Title (up) Comparisons of reproductive parameters of two Cape mountain zebra populations Type Journal Article
  Year 1987 Publication Abbreviated Journal J Reprod Fert Suppl  
  Volume 35 Issue Pages 661-663  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1462  
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Author Wasserman, S. doi  openurl
  Title (up) Conformity of two sociometric relations Type Journal Article
  Year 1987 Publication Psychometrika Abbreviated Journal Psychometrika  
  Volume 52 Issue 1 Pages 3-18  
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  Abstract Abstract  The problem of comparing two sociometric relations or measurements (A andB) recorded in distinct sociomatrices was originally discussed by Katz and Powell in the early 1950's and Hubert and Baker in the late 1970's. The problem is considered again using a probabilistic model designed specifically for discrete-valued network measurements. The model allows for the presence of various structural tendencies, such as reciprocity and differential popularity. A parameter that isolates the tendency for actors to choose other actors on both relations simultaneously is introduced, and estimated conditional on the presence of other parameters that reflect additional important network properties. The parameter is presented as a symmetric index but is also generalized to the predictive (A onB orB onA) situation. This approach to the problem is illustrated with the same data used by the earlier solutions, and the unique nature of the two relations in the data set (A = received choices,B = perceived choices), as it affects the modeling, is discussed. Significance tests for the parameter and related parameters are described, as well as an extension to more than two relations.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5027  
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Author Penzhorn Bl, openurl 
  Title (up) Descriptions of incisors of known – age Cape Mountain Zebras from the Mountain Zebra National park Type Journal Article
  Year 1987 Publication Abbreviated Journal Onderstepoort J vet Res  
  Volume 54 Issue Pages 135-141  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1459  
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Author Mcinnis Ml, V.M. openurl 
  Title (up) Dietary relationships among feral horses, cattle, and pronhorn in southeastern Oregon Type Journal Article
  Year 1987 Publication Abbreviated Journal J Range Mgmt  
  Volume 40 Issue Pages 60-66  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1379  
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Author Drevemo, S.; Fredricson, I.; Hjertén, G.; McMIKEN, D. url  doi
openurl 
  Title (up) Early development of gait asymmetries in trotting Standardbred colts Type Journal Article
  Year 1987 Publication Equine Veterinary Journal Abbreviated Journal Equine. Vet. J.  
  Volume 19 Issue 3 Pages 189-191  
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  Abstract Summary Ten trotting Standardbred colts were recorded by high-speed cinematography at the ages of eight, 12 and 18 months. The horses were trotting on a treadmill operating at 4.0 m/secs. Five horses were subjected to a programme of intensified training from eight months of age, whereas the others were not trained and acted as controls. The films were analysed on a semi-automatic film-reading equipment and a number of variables used to demonstrate the gait symmetry were calculated and scaled by computer. Certain differences between left and right diagonal and contralateral pair of limbs, respectively, were noted, suggesting that laterality in horses may be inherited. The most pronounced systematic differences were found in 18-month old horses in the trained group. The results show the importance of careful gait examination and comprehensive coordination training at an early age.  
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  Publisher American Medical Association (AMA) Place of Publication Editor  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0425-1644 ISBN Medium  
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  Notes https://doi.org/10.1111/j.2042-3306.1987.tb01373.x Approved no  
  Call Number Equine Behaviour @ team @ Serial 6702  
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