| Records |
| Author |
YALDEN DW et al, |
| Title |
Catalogue of the mammals of Ethiopia 6; II. order Perissodactyla; A |
Type |
Journal Article |
| Year |
1986 |
Publication |
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Abbreviated Journal |
Family Equidae Monitore Zool italiano Suppl |
Volume  |
21 |
Issue |
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Pages |
35-41 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
1726 |
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| Author |
Eccles, T.R.; Shackleton, D.M. |
| Title |
Correlates and consequences of social status in female bighorn sheep |
Type |
Journal Article |
| Year |
1986 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
34 |
Issue |
5 |
Pages |
1392-1401 |
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| Abstract |
Dominance-subordinance relationships among a captive group of adule bighorn sheep (Ovis canadensis californiana) were studied from May 1977 to December 1978. Social interactions between females were brief in duration and infrequent. Although a dominance hierarchy was evident among the females, it was not linear. Horn length and body weight were not consistently correlated with social status. The highest ranking females were the most aggressive individuals, initiating more agonistic interactions than subordinates. Females with high social status did not have higher quality diets, lower activity costs, or higher productivity than low ranking females. |
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no |
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refbase @ user @ |
Serial |
753 |
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| Author |
Thouless, C.R.; Guinness, F.E. |
| Title |
Conflict between red deer hinds: the winner always wins |
Type |
Journal Article |
| Year |
1986 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
34 |
Issue |
4 |
Pages |
1166-1171 |
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| Abstract |
Dominance relations between free-living, female red deer (hinds) (Cervus elaphus L.) on the Isle of Rhum, Scotland, were investigated. Most interactions were won by the older hind of the pair and this was the case even when both individuals had reached full body size. The younger hind was more likely to be the winner if the conflict was escalated or if the two hinds were strangers, in which case escalation was more frequent than usual. When outside their normal home range, older hinds were much more likely to lose, and younger ones more likely to win, than usual. These results can be best explained by the hinds using previous experience as a cue for conventional resolution of conflict, with the result that dominance relationships established early in life are perpetuated. No such cue is available if the hinds have not previously met. |
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no |
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refbase @ user @ |
Serial |
868 |
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| Author |
Cheney, D.L.; Seyfarth, R.M. |
| Title |
The recognition of social alliances among vervet monkeys |
Type |
Journal Article |
| Year |
1986 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
34 |
Issue |
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Pages |
1722-1731 |
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no |
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Equine Behaviour @ team @ |
Serial |
4864 |
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| Author |
Giraldeau, L.-A.; Lefebvre, L. |
| Title |
Exchangeable producer and scrounger roles in a captive flock of feral pigeons: a case for the skill pool effect |
Type |
Journal Article |
| Year |
1986 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
| Volume |
34 |
Issue |
3 |
Pages |
797-803 |
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| Abstract |
We investigated the foraging producer-scrounger system of a captive flock of feral pigeons (Columba livia) by monitoring the number of food patches each individual produced. In one experiment, three different patch types were tested on the whole flock while, in a second, flock composition was varied for one patch type. In all cases we found non-uniform distributions of the number of patches produced per individual, which suggests the existence of producer and scrounger roles. This result could not be explained by either dominance or variability in individual learning ability. Individuals switched roles in response to changes both in food patch type and flock composition. These results are discussed in light of the skill pool hypothesis, which suggests that, in a group, different foraging specialists will profit by parasitizing each other's food discoveries. |
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0003-3472 |
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no |
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Equine Behaviour @ team @ |
Serial |
6012 |
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| Author |
Crowell-Davis, S.L. |
| Title |
Spatial relations between mares and foals of the Welsh pony (Equus caballus) |
Type |
Journal Article |
| Year |
1986 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim Beh |
| Volume |
34 |
Issue |
4 |
Pages |
1007-1015 |
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| Abstract |
Welsh pony mares and foals (Equus caballus) were usually found to be within 1 or 5 m of each other during the first week of the foal's life and gradually spent more time at greater distances as the foals became older. There was an overall levelling of the trend during the 9th-15th weeks of life of the foal, followed by a second period of change during weeks 16-24. Through weeks 21-24, mares and foals spent at least half of their time within 5 m of each other. Proximity was primarily due to foal activity except during foal recumbency. During the first 8 weeks of the foal's life, a mare remained close by when it was recumbent, either by grazing in a circle around it or by standing upright beside it. Mares and foals were most likely to be close together when they were resting upright with the other ponies in the herd and most likely to be far apart when the foal was playing. Similarities in patterns of spatial relationship between the foals of a given mare were demonstrated. There was no difference between colts and filies in the development of independence. |
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0003-3472 |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6505 |
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| Author |
Vogt H, |
| Title |
Quagga eine Subspecies |
Type |
Journal Article |
| Year |
1986 |
Publication |
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Abbreviated Journal |
Naturwiss Rdsch |
| Volume |
39 |
Issue |
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Pages |
H |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1681 |
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| Author |
Flavell JH |
| Title |
The development of children's knowledge about the appearance-reality distinction |
Type |
Journal Article |
| Year |
1986 |
Publication |
Am. Psychol. |
Abbreviated Journal |
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| Volume |
41 |
Issue |
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Pages |
418 |
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no |
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Equine Behaviour @ team @ |
Serial |
2992 |
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| Author |
de Waal, F.B.; Luttrell, L.M. |
| Title |
The similarity principle underlying social bonding among female rhesus monkeys |
Type |
Journal Article |
| Year |
1986 |
Publication |
Folia primatologica; international journal of primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
| Volume |
46 |
Issue |
4 |
Pages |
215-234 |
| Keywords |
Aggression; Animals; Dominance-Subordination; Female; Grooming; *Group Processes; Macaca/*physiology; Macaca mulatta/*physiology; Male; *Object Attachment |
| Abstract |
Twenty adult female rhesus monkeys (Macaca mulatta) were observed over a three-year period. They lived in a mixed captive group with kinship relations known for three generations. The study's aim was to test Seyfarth's [J. theor. Biol. 65: 671-698, 1977] model of rank-related grooming and to investigate two other possible determinants of social bonding, i.e. relative age and the group's stratification into two social classes. Data on affiliation, coalitions, and social competition were collected by means of both focal observation and instantaneous time sampling. Whereas certain elements of the existing model were confirmed, its explanatory principles were not. Social competition did not result in more contact among close-ranking females (the opposite effect was found), and the relation between affiliative behavior and coalitions was more complex than predicted. Based on multivariate analyses and a comparison of theoretical models, we propose a simpler, more encompassing principle underlying interfemale attraction. According to this 'similarity principle', rhesus females establish bonds with females whom they most resemble. The similarity may concern genetical and social background, age, hierarchical position and social class. Effects of these four factors were independently demonstrated. The most successful model assumed that similarity factors influence female bonding in a cumulative fashion. |
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English |
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0015-5713 |
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| Notes |
PMID:3557225 |
Approved |
no |
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refbase @ user @ |
Serial |
211 |
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| Author |
Biederman, G.B.; Robertson, H.A.; Vanayan, M. |
| Title |
Observational learning of two visual discriminations by pigeons: a within-subjects design |
Type |
Journal Article |
| Year |
1986 |
Publication |
Journal of the experimental analysis of behavior |
Abbreviated Journal |
J Exp Anal Behav |
| Volume |
46 |
Issue |
1 |
Pages |
45-49 |
| Keywords |
Animals; Attention; Columbidae; Conditioning, Operant; Cues; *Discrimination Learning; *Imitative Behavior; Male; Visual Perception |
| Abstract |
Pigeon's observational learning of successive visual discrimination was studied using within-subject comparisons of data from three experimental conditions. Two pairs of discriminative stimuli were used; each bird was exposed to two of the three experimental conditions, with different pairs of stimuli used in a given bird's two conditions. In one condition, observers were exposed to visual discriminative stimuli only. In a second condition, subjects were exposed to a randomly alternating sequence of two stimuli where the one that would subsequently be used as S+ was paired with the operation of the grain magazine. In a third experimental condition, subjects were exposed to the performance of a conspecific in the operant discrimination procedure. After exposures to conspecific performances, there was facilitation of discriminative learning, relative to that which followed exposures to stimulus and reinforcement sequences or exposures to stimulus sequences alone. Exposure to stimulus and food-delivery sequences enhanced performance relative to exposure to stimulus sequences alone. The differential effects of these three types of exposure were not attributable to order effects or to task difficulty; rather, they clearly were due to the type of exposure. |
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English |
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0022-5002 |
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| Notes |
PMID:3746187 |
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no |
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refbase @ user @ |
Serial |
853 |
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