| Records |
| Author |
Tschanz B, |
| Title |
Sozialverhalten beim Camarguepferd – Paarungsverhalten und Herdenstruktur (Freilandaufnahmen).D 1318 Publ |
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| Year |
1980 |
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Abbreviated Journal  |
Wiss. Film |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1664 |
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| Author |
Bennett Dk, |
| Title |
Stripes do not a zebra make, Part I: A cladistic analysis of Equus |
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Journal Article |
| Year |
1980 |
Publication |
Systematic Zoology |
Abbreviated Journal |
Syst Zool |
| Volume |
29 |
Issue |
2 |
Pages |
272-287 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
932 |
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| Author |
Seyfarth, R.M.; Cheney, D.L.; Marler, P. |
| Title |
Monkey responses to three different alarm calls: evidence of predator classification and semantic communication |
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Journal Article |
| Year |
1980 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
210 |
Issue |
4471 |
Pages |
801-803 |
| Keywords |
*Animal Communication; Animals; Behavior, Animal/*physiology; Cercopithecidae/*physiology; *Fear; Female; Male; Predatory Behavior; Vocalization, Animal |
| Abstract |
Vervet monkeys give different alarm calls to different predators. Recordings of the alarms played back when predators were absent caused the monkeys to run into trees for leopard alarms, look up for eagle alarms, and look down for snake alarms. Adults call primarily to leopards, martial eagles, and pythons, but infants give leopard alarms to various mammals, eagle alarms to many birds, and snake alarms to various snakelike objects. Predator classification improves with age and experience. |
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English |
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0036-8075 |
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PMID:7433999 |
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no |
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refbase @ user @ |
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351 |
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| Author |
Lloyd Ph, H.D. |
| Title |
A case of adaptation and rejection of foals in Cape Mountain Zebra |
Type |
Journal Article |
| Year |
1980 |
Publication |
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Abbreviated Journal |
S Afr Wildl Res |
| Volume |
10 |
Issue |
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Pages |
61-62 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1348 |
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| Author |
Meij Hs, M.J. |
| Title |
Functional asymmetry in the motor system of the horse |
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Journal Article |
| Year |
1980 |
Publication |
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Abbreviated Journal |
S Afr J Sci |
| Volume |
76 |
Issue |
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Pages |
552-556 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1386 |
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| Author |
Lewis,P.; Gardner, ET; Lopatto, D. |
| Title |
Shock-duration reduction as negative reinforcement |
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Journal Article |
| Year |
1980 |
Publication |
The Psychological Record |
Abbreviated Journal |
Psychol. Rec, |
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| Abstract |
In 2 experiments, 9 female Sprague-Dawley albino rats were shocked every 30 sec. Before the barpress response, shocks were long (2 sec); for 3 min after a response, shocks were short (0.1, 0.5, or 1 sec). When responding reduced shocks from 2 to 0.1 sec, barpressing was acquired, and the shorter the shocks the more time spent with the short-shock condition in effect. In another procedure, the duration of individual shocks following a response was controlled so that the 1st shock was as long as those before the response (2 sec), but the remaining shocks in the 3-min period were short (0.1 sec). Barpressing was maintained in some Ss and acquired in others showing that, even when delayed, a reduction in shock duration is reinforcing. These findings question the generality of a 2-factor, safety-signal interpretation of negative reinforcement. These results plus others imply that to predict responding in aversive situations it is necessary to integrate, for at least several minutes, the parameters of aversive events that follow a response. (27 ref) (PsycINFO Database Record (c) 2014 APA, all rights reserved) |
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no |
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Equine Behaviour @ team @ |
Serial |
3596 |
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| Author |
Bunnell, B.; Perkins, M. |
| 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 |
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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no |
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2082 |
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| Author |
Bunnell, B.; Gore, W.; Perkins, M. |
| Title |
Performance correlates of social behavior and organization: Social rank and reversal learning in crab-eating macaques (M. fascicularis) |
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Journal Article |
| Year |
1980 |
Publication |
Primates |
Abbreviated Journal |
Primates |
| Volume |
21 |
Issue |
3 |
Pages |
376-388 |
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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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no |
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2083 |
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| Author |
Harvey, P.H.; Clutton-Brock, T.H.; Mace, G.M. |
| Title |
Brain size and ecology in small mammals and primates |
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Journal Article |
| Year |
1980 |
Publication |
Proceedings of the National Academy of Sciences |
Abbreviated Journal |
PNAS |
| Volume |
77 |
Issue |
7 |
Pages |
4387-4389 |
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no |
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Equine Behaviour @ team @ |
Serial |
5456 |
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| Author |
Salter Re, P.D. |
| Title |
Determinants of mineral lick utilization by feral horses |
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Journal Article |
| Year |
1980 |
Publication |
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Abbreviated Journal |
Northwest Sci |
| Volume |
54 |
Issue |
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Pages |
109-118 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1554 |
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