Records |
Author |
Hauser M.D |
Title |
Invention and social transmission: new data from wild vervet monkeys |
Type |
Book Chapter |
Year |
1988 |
Publication |
Machiavellian Intelligence |
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Volume |
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Issue |
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Pages |
327-343 |
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Publisher |
Oxford Univ Press |
Place of Publication |
Oxford |
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ISBN |
0-19-852175-8 |
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Call Number |
Equine Behaviour @ team @ Byrne1988 |
Serial |
4794 |
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Author |
Cheney, D.L.; Seyfarth, R.M |
Title |
Social and non.social knowledge in vervet monkeys |
Type |
Book Chapter |
Year |
1988 |
Publication |
Machiavellian Intelligence |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
255-270 |
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Publisher |
Oxford Univ Press |
Place of Publication |
Oxford |
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ISBN |
0-19-852175-8 |
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Call Number |
Equine Behaviour @ team @ Byrne+Whiten1988 |
Serial |
4787 |
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Author |
Dasser V. |
Title |
Mapping social concepts in monkeys |
Type |
Book Chapter |
Year |
1988 |
Publication |
Machiavellian Intelligence |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
85-93 |
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Publisher |
Oxford Univ Press |
Place of Publication |
Oxford |
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ISBN |
0-19-852175-8 |
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Call Number |
Equine Behaviour @ team @ Byrne1988 |
Serial |
4792 |
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Author |
McCann, J.S.; Heird, J.C.; Bell, R.W.; Lutherer, L.O. |
Title |
Normal and more highly reactive horses. II. The effect of handling and reserpine on the cardiac response to stimuli |
Type |
Journal Article |
Year |
1988 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
Volume |
19 |
Issue |
3-4 |
Pages |
215-226 |
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Abstract |
A split-plot experiment evaluated the effect of handling and reserpine on the autonomic heart-rate response of yearling horses to various stimuli. The emotionality levels of 32 Quarter-Horse yearlings were rated by 4 experienced horsemen on a scale from 1 to 4 (1 = most nervous and erratic disposition; 4=quiet disposition). The yearlings were subsequently classified and penned based on their emotionality level; normal or nervous. Within each emotionality group, one-half the yearlings were handled daily for 14 days and the other one-half remained free in the pens. Following the handling treatment, every yearling was individually exposed to a series of stimuli, while the heart rate was monitored via a radio-telemetry system. A second treatment, reserpine, was subsequently given intramuscularly (0.005 mg/kg body weight) to one-half the yearlings of each treatment combination of emotionality and handling. The heart rate of the yearlings to the same series of stimuli previously employed was determined at 24 and 120 h and 16 days following the reserpine injection. Summarizing the results, the handled yearlings tended to exhibit lower heart rates with the handling stimulus, but the heart rate with a more novel stimulus was not affected by the previous handling treatment. Reserpine tended to suppress the heart rate of the unhandled group during the presence of a handler, but the permanency of this effect was not evident 16 days after the drug was administered. The reserpine-treated groups tended to exhibit the lowest heart-rate response to stimuli during the 120-h test-day following the administration of the drug. Heart-rate responses to the stimuli were not different between the normal and nervous yearlings. |
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Edition |
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ISSN |
0168-1591 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4817 |
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Author |
McCann, J.S.; Heird, J.C.; Bell, R.W.; Lutherer, L.O. |
Title |
Normal and more highly reactive horses. I. Heart rate, respiration rate and behavioral observations |
Type |
Journal Article |
Year |
1988 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
Volume |
19 |
Issue |
3-4 |
Pages |
201-214 |
Keywords |
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Abstract |
Thirty-two Quarter horse yearlings were utilized in a split-plot experiment to establish behavioral tendencies for two levels of emotionality; normal and a more highly reactive level of emotionality termed nervous. Four observers who were experienced with horses scored the yearlings on an emotionality scale from 1 to 4, with 1 representing the highly nervous yearlings and 4 representing the quiet yearlings. Emotionality evaluations were based upon the response of the yearlings to a standard regimen of standing in a chute, being identified and being released from the chute. The inter-rater reliability coefficients were 0.90 for the normal yearlings and 0.65 for the nervous yearlings, indicating that the raters agreed less when evaluating the nervous yearlings. Yearling heart rates in the chute were correlated (r = -0.54, P<0.002) with the average emotionality score. Observational data on behavior collected 2 days following the emotionality scoring procedure indicated that the normal yearlings maintained a greater (P<0.001) individual distance than the nervous yearlings. From an activity summary, the normal yearlings spent 10.9% of the time lying down (LD), 79.1% standing (S), 9.6% walking or trotting (WT) and 0.4% of the time cantering or galloping (CG). The nervous yearlings spent 5.7% of the observational periods LD, 79.2% S, 11.7% WT and 3.4% CG. The nervous yearlings tended to have a higher overall activity index level than did the normal yearlings. Results indicate horses of different emotionality levels exhibited different behavioral patterns. |
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0168-1591 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4818 |
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Author |
Hayes, K. |
Title |
Temperament tip-offs. |
Type |
Journal Article |
Year |
1988 |
Publication |
Horse and Rider |
Abbreviated Journal |
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Volume |
11 |
Issue |
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Pages |
47-84 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4822 |
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Author |
Jenks, S. M. |
Title |
Behavioral regulation of social organization and mating in a captive wolf pack |
Type |
Manuscript |
Year |
1988 |
Publication |
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Volume |
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Issue |
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Pages |
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Thesis |
Ph.D. thesis |
Publisher |
Univ. Conn. Dept. Biobehavioral Sci |
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Equine Behaviour @ team @ |
Serial |
5237 |
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Author |
Black, J.M. |
Title |
Preflight Signalling in Swans: A Mechanism for Group Cohesion and Flock Formation |
Type |
Journal Article |
Year |
1988 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
Volume |
79 |
Issue |
2 |
Pages |
143-157 |
Keywords |
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Abstract |
Abstract The preflight behaviour of whooper swans Cygnus cygnus and Bewick's swans Cygnus columbianus bewickii was examined to determine the adaptive significance of the ritual. Analysis of the preflight sequence revealed that the rate of signalling became significantly faster as the time of takeoff approached. This provides the first quantitative evidence that a threshold of excitability is responsible for triggering synchronised flight in social units. Two ultimate and two proximate factors that affect this threshold were uncovered. They are: 1) Maintaining proximity to partners—flight was delayed by birds with non-attentive mates and signalling lasted on average four times longer than those whose mates showed more interest. 2) Maintaining flock cohesiveness—birds which performed signals for longer periods while swimming among uninterested birds were successful in attracting followers 61% of the time. 3) The bird's feeding performance related to dominance status—less successful feeders (potentially hungry birds), flew after little time and few signals. 4) The type of feeding opportunity at the eventual destination—birds which flew to provided feeds (nutritious barley) spent less time performing preflight signals than when they flew to forage on grass fields. |
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Blackwell Publishing Ltd |
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Edition |
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ISSN |
1439-0310 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
5315 |
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Author |
Hamilton, C.R.; Vermeire, B.A. |
Title |
Complementary hemispheric specialization in monkeys |
Type |
Journal Article |
Year |
1988 |
Publication |
Science |
Abbreviated Journal |
Science |
Volume |
242 |
Issue |
4886 |
Pages |
1691-1694 |
Keywords |
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Abstract |
Twenty-five split-brain monkeys were taught to discriminate two types of visual stimuli that engage lateralized cerebral processing in human subjects. Differential lateralization for the two kinds of discriminations was found; the left hemisphere was better at distinguishing between tilted lines and the right hemisphere was better at discriminating faces. These results indicate that lateralization of cognitive processing appeared in primates independently of language or handedness. In addition, cerebral lateralization in monkeys may provide an appropriate model for studying the biological basis of hemispheric specialization. |
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Equine Behaviour @ team @ |
Serial |
5342 |
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Author |
Boyd L. |
Title |
The behaviour of Przewalski’s horses. |
Type |
Manuscript |
Year |
1988 |
Publication |
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Pages |
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Thesis |
Ph.D. thesis |
Publisher |
Cornell University |
Place of Publication |
Ithaca, NY. |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5432 |
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