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Author Smith, J.M.; Parker, G.A. url  doi
openurl 
  Title (down) The logic of asymmetric contests Type Journal Article
  Year 1976 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 24 Issue 1 Pages 159-175  
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  Abstract A theoretical analysis is made of the evolution of behavioural strategies in contest situations. It is assumed that behaviour will evolve so as to maximize individual fitness. If so, a population will evolve an [`]evolutionarily stable strategy', or ESS, which can be defined as a strategy such that, if all members of a population adopt it, no [`]mutant' strategy can do better. A number of simple models of contest situations are analysed from this point of view. It is concluded that in [`]symmetric' contests the ESS is likely to be a [`]mixed' strategy; that is, either the population will be genetically polymorphic or individuals will be behaviourally variable. Most real contests are probably asymmetric, either in pay-off to the contestants, or in size or weapons, or in some [`]uncorrelated' fashion; i.e. in a fashion which does not substantially bias either the pay-offs or the likely outcome of an escalated contest. An example of an uncorrelated asymmetry is that between the [`]discoverer' of a resource and a [`]late-comer'. It is shown that the ESS in asymmetric contests will usually be to permit the asymmetric cue to settle the contest without escalation. Escalated contests will, however, occur if information to the contestants about the asymmetry is imperfect.  
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  ISSN 0003-3472 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5103  
Permanent link to this record
 
 
Author Janis C, openurl 
  Title (down) The evolutionary strategy of the Equidae and the origins of rumen and cecal digestion Type Journal Article
  Year 1976 Publication Abbreviated Journal Evolution  
  Volume 30 Issue Pages 757-774  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1217  
Permanent link to this record
 
 
Author Dow, M.; Ewing, A.W.; Sutherland, I. openurl 
  Title (down) Studies on the behaviour of cyprinodont fish. III. The temporal patterning of aggression in Aphyosemion striatum (Boulenger) Type Journal Article
  Year 1976 Publication Behaviour Abbreviated Journal Behaviour  
  Volume 59 Issue 3-4 Pages 252-268  
  Keywords *Aggression; Animals; *Behavior, Animal; Dominance-Subordination; *Fishes; Humans; Individuality; *Killifishes; Male; Time Factors  
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  Language English Summary Language Original Title  
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  ISSN 0005-7959 ISBN Medium  
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  Notes PMID:1035107 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4151  
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Author Brown, R.F.; Houpt, K.A.; Schryver, H.F. openurl 
  Title (down) Stimulation of food intake in horses by diazepam and promazine Type Journal Article
  Year 1976 Publication Pharmacology, biochemistry, and behavior Abbreviated Journal Pharmacol Biochem Behav  
  Volume 5 Issue 4 Pages 495-497  
  Keywords Age Factors; Animals; Diazepam/*pharmacology; Diet; Feeding Behavior/*drug effects; Female; Horses/*physiology; Male; Promazine/*pharmacology; Stimulation, Chemical  
  Abstract In two adult horses doses of 0.02-0.03 mg/kg diazepam, intravenously, increased 1 hr intake 54-75% above control levels. Intake was stimulated when the diet was a high grain, calorically dense one and also when the diet was a high fiber, calorically dilute one. Two young rapidly growing weanling horses showed an even more pronounced stimulation of intake. Following diazepam 1 hr intake was increased 105-240% above control lelvels. Promazine at a dose of 0.5 mg/kg also stimulated intake in adult horses, but not as markedly as did diazepam. A transquilizer and a neuroleptic appear to have a stimulatory eff upon short-term intake in horses.  
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  ISSN 0091-3057 ISBN Medium  
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  Notes PMID:1005496 Approved no  
  Call Number refbase @ user @ Serial 60  
Permanent link to this record
 
 
Author Keiper, R. openurl 
  Title (down) Social organization of feral ponies Type Journal Article
  Year 1976 Publication Abbreviated Journal Proc Pennsyl Acad Sci  
  Volume 50 Issue Pages 69-70  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1250  
Permanent link to this record
 
 
Author Smuts Gl, openurl 
  Title (down) Reproduction in the zebra stallion from the Krüger National Park Type Journal Article
  Year 1976 Publication Abbreviated Journal Zool Afr  
  Volume 11 Issue Pages 207-220  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1616  
Permanent link to this record
 
 
Author Smuts Gl, openurl 
  Title (down) Reproduction in the zebra mare from Krüger National Park Type Journal Article
  Year 1976 Publication Abbreviated Journal Koedoe  
  Volume 19 Issue Pages 89-132  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1615  
Permanent link to this record
 
 
Author Clutton-Brock, T.H.; Greenwood, P.J.; Powell, R.P. openurl 
  Title (down) Ranks and relationships in Highland ponies and Highland Cows Type Journal Article
  Year 1976 Publication Zeitschrift für Tierpsychologie Abbreviated Journal Z. Tierpsychol.  
  Volume 41 Issue 2 Pages 202-216  
  Keywords Agonistic Behavior; Animals; *Cattle; Female; Grooming; *Horses; Male; *Social Dominance; Spatial Behavior  
  Abstract Recent studies of primates have questioned the importance of dominance hierarchies in groups living under natural conditions. In a herd of Highland ponies and one of Highland cattle grazing under free-range conditions on the Isle of Rhum (Inner Hebrides) well defined hierarchies were present. The provision of food produced a marked increase in the frequency of agonistic interactions but had no effect on the rank systems of the two herds. While rank was clearly important in affecting the distribution of agonistic interactions, it was poorly related to behaviour in non-agonistic situations.  
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  ISSN 0044-3573 ISBN Medium  
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  Notes PMID:961125 Approved no  
  Call Number refbase @ user @ Serial 661  
Permanent link to this record
 
 
Author Joubert, E.; Louw, G.N. openurl 
  Title (down) Preliminary observations on the digestive and renal efficiency of Hartmann's zebra Equus zebra hartmannae. Type Journal Article
  Year 1976 Publication Madoqua Abbreviated Journal Madoqua  
  Volume 10 Issue Pages 119-121  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2306  
Permanent link to this record
 
 
Author Ngethe Jc, openurl 
  Title (down) Preference and daily intake of five east african grasses by zebras Type Journal Article
  Year 1976 Publication Abbreviated Journal J Range Mgmt  
  Volume 29 Issue Pages 510  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1416  
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