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Author DOREAU M et al, openurl 
  Title Activités alimentaires nocturnes du cheval au pâturage Type Journal Article
  Year 1980 Publication Abbreviated Journal Ann Zootech  
  Volume 29 Issue Pages (up) 299-304  
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  Area Expedition Conference  
  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1022  
Permanent link to this record
 

 
Author Clutton-Brock, T.H.; Harvey, P.H. doi  openurl
  Title Primates, brains and ecology Type Journal Article
  Year 1980 Publication Journal of Zoology Abbreviated Journal J. Zool. Lond.  
  Volume 190 Issue 3 Pages (up) 309-323  
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  Abstract The paper examines systematic relationships among primates between brain size (relative to body size) and differences in ecology and social system. Marked differences in relative brain size exist between families. These are correlated with inter-family differences in body size and home range size. Variation in comparative brain size within families is related to diet (folivores have comparatively smaller brains than frugivores), home range size and possibly also to breeding system. The adaptive significance of these relationships is discussed.  
  Address  
  Corporate Author Thesis  
  Publisher Blackwell Publishing Ltd Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1469-7998 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5451  
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Author De Moraes Ferrari,E. A.; Todorov, J. C. doi  openurl
  Title Concurrent avoidance of shocks by pigeons pecking a key Type Journal Article
  Year 1980 Publication Abbreviated Journal J Exp Anal Behav.  
  Volume 30 Issue 3 Pages (up) 329-333  
  Keywords concurrent schedules, unsignaled avoidance, negative reinforcement, key pecking, pigeon  
  Abstract Three pigeons were studied on concurrent, unsignaled, avoidance schedules in a two-key procedure. Shock-shock intervals were two seconds in both schedules. The response-shock interval on one key was always 22 seconds, while the response-shock interval associated with the other key was varied from 7 to 52 seconds in different experimental conditions. Response rates on the key associated with the varied schedule tended to decrease when the response-shock interval length was increased. Responding on the key associated with the constant schedule was not systematically affected.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 3586  
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Author Haag, E.L.; Rudman, R.; Houpt, K.A. openurl 
  Title Avoidance, maze learning and social dominance in ponies Type Journal Article
  Year 1980 Publication J. Anim. Sci. Abbreviated Journal  
  Volume 50 Issue Pages (up) 329-335  
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  Notes Cited By (since 1996): 16; Export Date: 24 October 2008 Approved no  
  Call Number Admin @ knut @ Serial 4593  
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Author Shettleworth, S.J.; Juergensen, M.R. openurl 
  Title Reinforcement and the organization of behavior in golden hamsters: brain stimulation reinforcement for seven action patterns Type Journal Article
  Year 1980 Publication Journal of experimental psychology. Animal behavior processes Abbreviated Journal J Exp Psychol Anim Behav Process  
  Volume 6 Issue 4 Pages (up) 352-375  
  Keywords Animals; Behavior, Animal/*physiology; Cricetinae; Electric Stimulation; Female; Hypothalamus/*physiology; Male; Medial Forebrain Bundle/physiology; Mesocricetus; *Reinforcement (Psychology)  
  Abstract Golden hamsters were reinforced with intracranial electrical stimulation of the lateral hypothalamus (ICS) for spending time engaging in one of seven topographically defined action patterns (APs). The stimulation used as reinforcer elicited hoarding and/or feeding and supported high rates of bar pressing. In Experiment 1, hamsters were reinforced successively for digging, open rearing, and face washing. Digging increased most in time spent, and face washing increased least. Experiments 2-5 examined these effects further and also showed that “scrabbling,” like digging, was performed a large proportion of the time, almost without interruption, for contingent ICS but that scratching the body with a hindleg and scent-marking showed relatively little effect of contingent ICS, the latter even in an environment that facilitated marking. In Experiment 6, naive hamsters received ICS not contingent on behavior every 30 sec (fixed-time 30-sec schedule). Terminal behaviors that developed on this schedule were APs that were easy to reinforce in the other experiments, but a facultative behavior, face washing, was one not so readily reinforced. Experiment 7 confirmed a novel prediction from Experiment 6--that wall rearing, a terminal AP, would be performed at a high level for contingent ICS. All together, the results point to both motivational factors and associative factors being involved in the considerable differences in performance among different reinforced activities.  
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  Series Volume Series Issue Edition  
  ISSN 0097-7403 ISBN Medium  
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  Notes PMID:6968817 Approved no  
  Call Number refbase @ user @ Serial 386  
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Author Bunnell, B.; Gore, W.; Perkins, M. doi  openurl
  Title Performance correlates of social behavior and organization: Social rank and reversal learning in crab-eating macaques (M. fascicularis) Type Journal Article
  Year 1980 Publication Primates Abbreviated Journal Primates  
  Volume 21 Issue 3 Pages (up) 376-388  
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  Abstract Abstract  Seventeen male crab-eating macaques drawn from two captive troops, were tested on a brightness discrimination, reversal learning task. Fourteen of these animals completed ten reversals. It was found that the performance of the three highest ranking animals from each troop, taken together, was poorer than that of the lower ranking animals that were tested. The high ranking animals made more errors before reaching criterion on both initial learning and the reversal problems. Analysis of error patterns revealed that, while the high ranking animals had no more difficulty than the others in withholding their responses to the previously correct stimulus following reversals, they did not adopt the correct strategy as soon as the low ranking animals. The results have been interpreted in terms of a carry-over of a hypothetical factor or factors resulting from pressures created by the ongoing social dynamics involved in establishing and maintaining a given social rank at the time laboratory testing occurred.  
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  Notes Approved no  
  Call Number Serial 2083  
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Author Meyer H, openurl 
  Title Ein Beitrag zur Regulation der Futteraufnahme beim Pferd Type Journal Article
  Year 1980 Publication Abbreviated Journal Dtsch Tierärztl Wschr  
  Volume 87 Issue Pages (up) 401-424  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1390  
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Author Bunnell, B.; Perkins, M. doi  openurl
  Title Performance correlates of social behavior and organization: Social rank and complex problem solving in crab-eating macaques (M. fascicularis) Type Journal Article
  Year 1980 Publication Primates Abbreviated Journal Primates  
  Volume 21 Issue 4 Pages (up) 515-523  
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  Abstract Abstract  Seventeen male crab-eating macaques, drawn from two captive troops, were tested on a series of complex problem solving tasks in a Wisconsin General Test Apparatus (wgta). The animals were trained on a series of 6-trial object quality learning set problems followed by a series of 10-trial object quality learning set problems. They were then given problems in which the correct stimulus object was reversed part way through the problem. After the animals reached criterion on this task, the reversal learning set was then extinguished. High ranking animals made more intraproblem errors than low ranking animals on the 6-trial problems, but there was no relationship between social status and the rapidity with which the object quality learning set was established. Animals that received overtraining on the 6-trial problems transferred their learning virtually intact to the 10-trial problems; however, high ranking animals without overtraining made more errors than low ranking animals. On reversal learning and reversal extinction, high ranking animals made more errors on critical trials, indicating that they formed and extinguished the reversal set more slowly than low ranking animals. Object quality sets, as measured by trial-2 performance, were not affected by the reversal conditions.  
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  Notes Approved no  
  Call Number Serial 2082  
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Author Meij Hs, M.J. openurl 
  Title Functional asymmetry in the motor system of the horse Type Journal Article
  Year 1980 Publication Abbreviated Journal S Afr J Sci  
  Volume 76 Issue Pages (up) 552-556  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1386  
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Author Hintz, R.L. openurl 
  Title Genetics of performance in the horse Type Journal Article
  Year 1980 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume 51 Issue 3 Pages (up) 582-594  
  Keywords Animals; Exertion; Horses/*genetics/physiology; Sports  
  Abstract Criteria used to measure performance, environmental factors that influence performance and estimates of heritability are needed to estimate genetic differences. Published heritability estimates of various measures of performance in the horse are summarized. The average heritability estimates of pulling ability and cutting ability are .25 and .04, respectively. Heritability estimates are .18, .19 and .17 for log of earnings from jumping, 3-day event and dressage performance, respectively. Heritability estimates of performance rates, log of earnings, earnings, handicap weight, best handicap weight, time and best time for the Thoroughbred are .55, .49, .09, .49, .33, .15 and .23, respectively. Heritability estimates of log of earnings, earnings, time and best time for the trotter are .41, .20, .32, and .25, respectively. The heritability estimate of best time for the pacer is .23. The effectiveness of selection will depend on which performance trait is to be improved.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0021-8812 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:7440446 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3758  
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