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Author Hunter, L.; Houpt, K..A.
Title Bedding material preferences of ponies. Type Journal Article
Year 1989 Publication Journal of American Society of Animal Science Abbreviated Journal J Anim Sci
Volume 67 Issue 8 Pages (down) 1986-1991
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Abstract The bedding preferences of ponies were determined using video recordings of nighttime (1900 to 0700) behavior of individually housed ponies. The ponies' behavior each minute was recorded to determine time budgets. In Exp. I, preference for bedding was determined using three mares, three stallions and two geldings given access to bedded and unbedded areas in a box stall. The ponies spent more time (66%) on the bedded area and were never observed lying on the unbedded areas. In Exp. II, three mares and six stallions were given access to a box stall, one side of which was bedded with wood shavings and the other with straw. Although some individual animals preferred one bedding over the other, neither form of bedding was preferred consistently. Time budgets in Exp. II were similar on both bedding materials. The ponies spent 12% of their nighttime lying, 2% walking, 35% eating and 50% standing inactively. Some ponies had a relatively strong preference for bedding, but the type of bedding preferred varied with the individual animal. Some individual ponies had no clear preference, but instead had a side or position preference
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Notes from Professor Hans Klingels Equine Reference List Approved yes
Call Number Serial 1211
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Author Chandler M; Fritz AS; Hala S
Title Small scale deceit: deception marker of 2-, 3- and 4-year-olds' early theories of mind Type Journal Article
Year 1989 Publication Child Dev. Abbreviated Journal
Volume 60 Issue Pages (down) 1263
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 2986
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Author Stahlbaum, C.C.; Houpt, K.A.
Title The role of the Flehmen response in the behavioral repertoire of the stallion Type Journal Article
Year 1989 Publication Physiology & behavior Abbreviated Journal Physiol. Behav.
Volume 45 Issue 6 Pages (down) 1207-1214
Keywords Animals; Behavior, Animal/*physiology; Circadian Rhythm; Discrimination (Psychology)/physiology; Estrus; Feces; Female; Horses/*physiology; Male; Sexual Behavior, Animal/*physiology; Smell/*physiology; Taste/physiology; Urine
Abstract The role of the Flehmen response in equine behavior was investigated under field and laboratory conditions. In Experiment 1, a field study made of five stallions on pasture with between three and eighteen mares each during the season indicated the following: 1) The Flehmen response was most frequently preceded by nasal, rather than oral, investigation of substances; 2) The stallions' rate of Flehmen varied with the estrous cycles of the mares; 3) The rate of Flehmen response did not show a variation with time of day; and 4) The Flehmen response was most frequently followed by marking behaviors rather than courtship behaviors. The results suggest that the Flehmen response is not an immediate component of sexual behavior, e.g., courtship of the stallion but may be involved in the overall monitoring of the mare's estrous cycle. Therefore the Flehmen response may contribute to the chemosensory priming of the stallion for reproduction. In Experiment 2 stallions were presented with urine or feces of mares in various stages of the reproductive cycle as well as with their own or other males' urine or feces. The occurrence of sniffing and Flehmen was used to determine the discriminatory ability of the stallions. Stallions can differentiate the sex of a horse on the basis of its feces alone, but cannot differentiate on the basis of urine. This ability may explain the function of fecal marking behavior of stallions.
Address New York State College of Veterinary Medicine, Cornell University, Ithaca 14853
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Language English Summary Language Original Title
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ISSN 0031-9384 ISBN Medium
Area Expedition Conference
Notes PMID:2813545 Approved no
Call Number refbase @ user @ Serial 44
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Author Houpt, K.A.; Thornton, S.N.; Allen, W.R.
Title Vasopressin in dehydrated and rehydrated ponies Type Journal Article
Year 1989 Publication Physiology & behavior Abbreviated Journal Physiol. Behav.
Volume 45 Issue 3 Pages (down) 659-661
Keywords Animals; Behavior, Animal/*physiology; Dehydration/*blood; Drinking Behavior/*physiology; Female; Horses/*blood; Osmolar Concentration; Reaction Time; Time Factors; Vasopressins/*blood
Abstract Six pony mares deprived of water for 24 hours showed significant increases in plasma vasopressin (2.8 pg/ml) and osmolality (9 mosmol/kg). When water was made available the ponies drank rapidly (5 of 6 drank to satiety within 90 seconds) and corrected their fluid deficits precisely. Vasopressin did not return to predehydration levels until osmolality did after 15 minutes of access to water. The horse differs from rodents and humans, but is similar to pigs in that vasopressin levels do not fall before osmolality returns to normal. Oropharyngeal factors, therefore, may not be as important in vasopressin release in horses as in other species.
Address New York State College of Veterinary Medicine, Cornell University, Ithaca 14853-6401
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Publisher Place of Publication Editor
Language English Summary Language Original Title
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ISSN 0031-9384 ISBN Medium
Area Expedition Conference
Notes PMID:2756059 Approved no
Call Number refbase @ user @ Serial 45
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Author Dewsbury, D.A.
Title Comparative Psychology, Ethology, and Animal Behavior Type Journal Article
Year 1989 Publication Annual Review of Psychology Abbreviated Journal
Volume 40 Issue 1 Pages (down) 581-602
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Notes Approved no
Call Number refbase @ user @ Serial 3541
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Author Klingel, H.
Title Odd-toed Ungulates, Horses Type Book Chapter
Year 1989 Publication Grzimek's Encyclopedia of Mammals Abbreviated Journal
Volume 4 Issue Pages (down) 550+557-594
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Corporate Author Thesis
Publisher Place of Publication McGraw Hill Editor Grzimek, B.
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Notes from Professor Hans Klingels Equine Reference List Approved yes
Call Number Serial 1320
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Author Walker, S.
Title An introduction to animal cognition : By . Hillsdale, New Jersey: Lawrence Erlbaum (1988). Pp. viii + 328. Price [pound sign]8.95 paperback Type Journal Article
Year 1989 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 37 Issue Part 3 Pages (down) 521-522
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 2922
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Author Visalberghi E; Trinca L
Title Tool use in capuchin monkeys: distinguishing between performing and understanding Type Journal Article
Year 1989 Publication Primates Abbreviated Journal Primates
Volume 30 Issue Pages (down) 511
Keywords Tool use – Cebus apella – Mental representation
Abstract A horizontal plexiglas tube containing a food-reward was presented to four naive tufted capuchins and suitable sticks were provided to push the reward out. Three monkeys out of four spontaneously used the tools and showed very different styles of solving the task. In more complex conditions, in which the sticks needed to be combined or actively modified in order to become effective, the monkeys were always successful; however, their performance was loaded with errors which did not disappear throughout the trials. Evidence of a difference between success in solving the problem and its understanding was found. This suggests that although capuchins can discover new means through active experimentation, they do not mentally represent the characteristics necessary for a tool to be effective, nor do they modify the tool appropriately beforehand. At this level, a major difference with chimpanzees emerges.
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 3047
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Author Lloyd, P.H.; Rasa, O.A.E.
Title Status, reproductive success and fitness in Cape mountain zebra (Equus zebra zebra) Type Journal Article
Year 1989 Publication Abbreviated Journal Behavioral Ecology and Sociobiology
Volume 25 Issue 6 Pages (down) 411-420
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Abstract Demographic data relating to herd size and stability are given for a population of Cape mountain zebra (Equus zebra zebra) under longterm observation. Temporal dispersion patterns of male and female offspring differed and were independent of the mother's status. Dispersion in females appeared to be related to physiological state, and dispersion in both sexes was related to age rather than changes in parental behaviour. Reproductive success of dominant and subordinate mares was equal and independent of age and social and reproductive variables. Fitness of dominant mares, however, was significantly higher than that of subordinates, the latter having a higher foal mortality, part of which could be attributable to dominants' aggression. The fitness of all males born was 1.6:1 compared with all females. Dominant mares produced significantly more daughters than sons. This trend was not found for subordinates. Mother's status was positively correlated with dominant status in her female offspring but not related to the subsequent status of her sons. Daughters had a more than twice as great a chance of breeding than sons. For maximum fitness gains, therefore, dominant mares should produce more daughters, since a high proportion of these would also have high status and fitness. This tendency is reflected in the sex ratio skewed towards females found for dominant mares.
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Publisher Springer-Verlag Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0340-5443 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5787
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Author Valone, T.J.
Title Group foraging, public information, and patch estimation Type Journal Article
Year 1989 Publication Oikos Abbreviated Journal Oikos
Volume 56 Issue 3 Pages (down) 357-363
Keywords Techniques; Mathematical techniques; Nutrition; Feeding behaviour; Behaviour; Social behaviour^, Comprehensive Zoology; Mathematical model; Resource patch estimation by group members; use of public information; Foraging; Group behaviour
Abstract Public information is information about the quality of a patch that can be obtained by observing the foraging success of other individuals in that patch. I examine the influence of the use of public information on patch departure and foraging efficiency of group members. When groups depart a patch with the first individual to leave, the use of public information can prevent the underutilization of resource patches.
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4274
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