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Author |
Geyer Cj, T.E. |
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Title |
Gene survival in the Asian wild horse: I. Dependence of gene survival in the Calgary breeding group pedigree |
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Journal Article |
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Year |
1988 |
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Abbreviated Journal |
Zoo Biol |
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Volume |
7 |
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313-327 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1107 |
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Author |
Fielding D, |
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Title |
Reproductive characteristics of the Jenny donkey – Equus Asinus: a review |
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Journal Article |
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Year |
1988 |
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Abbreviated Journal |
Trop Anim Hlth Prod |
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Volume |
20 |
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Pages |
161-166 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1086 |
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Author |
Thackeray, J.F. |
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Title |
Zebras from wonderwerk cave, northern Cape province, South Africa: attempts to distinguish Equus burchelli and E. quagga |
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Journal Article |
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Year |
1988 |
Publication |
South African journal of science |
Abbreviated Journal |
Suid- Afrikaanse Tydsskrif vir Wetenskap |
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Volume |
84 |
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Pages |
99-101 |
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Keywords |
Cape Province; Teeth; Statistical analysis; Equidae; Hippomorpha; South Africa; Southern Africa; Perissodactyla; Mammalia; Vertebrata |
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0038-2353 |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
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Serial |
1644 |
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Author |
Smuts, M.M.S.; Penzhorn, B. L. |
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Title |
Descriptions of antomical differences between skulls and mandibles of Equus zebra and E. burchelli from southern Africa |
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Journal Article |
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Year |
1988 |
Publication |
South African Journal of Zoology |
Abbreviated Journal |
South African Journal of Zoology |
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Volume |
23 |
Issue |
(4)3 |
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328-336 |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
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1617 |
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Author |
Bednarz, J.C. |
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Title |
Cooperative Hunting Harris' Hawks (Parabuteo unicinctus) |
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Journal Article |
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Year |
1988 |
Publication |
Science |
Abbreviated Journal |
Science |
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Volume |
239 |
Issue |
4847 |
Pages |
1525-1527 |
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Abstract |
Coordinated hunting by several individuals directed toward the capture and sharing of one Large prey animal has been documented convincingly only for a few mammalian carnivores. In New Mexico, Harris' hawks formed hunting parties of two to six individuals in the nonbreeding season. This behavior improved capture success and the average energy available per individual enabled hawks to dispatch prey larger than themselves. These patterns suggest that cooperation is important to understanding the evolution of complex social behavior in higher vertebrates and, specifically, that benefits derived from team hunting a key factor in the social living of Harris' hawks. |
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Notes |
10.1126/science.239.4847.1525 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4717 |
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Author |
Hamilton, C.R.; Vermeire, B.A. |
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Title |
Complementary hemispheric specialization in monkeys |
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Journal Article |
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Year |
1988 |
Publication |
Science |
Abbreviated Journal |
Science |
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Volume |
242 |
Issue |
4886 |
Pages |
1691-1694 |
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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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no |
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Call Number |
Equine Behaviour @ team @ |
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5342 |
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Author |
NOVELLIE PA et al, |
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Title |
Factors affecting the seasonal movements of Cape mountain zebras in the Mountain Zebra National Park |
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Journal Article |
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Year |
1988 |
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Abbreviated Journal |
S Afr J Zool |
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Volume |
23 |
Issue |
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Pages |
13-19 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1424 |
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Author |
Smielowski, J. |
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Title |
Breeding of the Grevy's Zebra at Polish zoological gardens |
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Journal Article |
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Year |
1988 |
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Abbreviated Journal |
Przeglad Zool |
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Volume |
32 |
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Pages |
595-597 |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
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1608 |
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Author |
Brennan, J.; Anderson, J. |
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Title |
Varying responses to feeding competition in a group of rhesus monkeys (Macaca mulatta) |
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Journal Article |
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Year |
1988 |
Publication |
Primates |
Abbreviated Journal |
Primates |
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Volume |
29 |
Issue |
3 |
Pages |
353-360 |
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Keywords |
Macaca mulatta – Dominance – Feeding – Agonistic behaviour – Snakes |
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Abstract |
The behaviour of members of a group of rhesus monkeys was observed in experimentally created, competitive feeding situations. Socially dominant members of the group tended to start eating before lower-ranking subjects, and generally ate more. Dominants sometimes used aggression to control access to food, but overall, intermediate-ranking monkeys were involved in most agonistic episodes. Non-dominant subjects improved their feeding performance when food was presented in three piles rather than one pile, often by snatching food and consuming it away from the pile. These general patterns were less evident when realistic snake models were placed on some of the food piles. Feeding was disrupted by the presence of snakes, but notably, subordinates risked feeding in these conditions. Piles containing preferred foods and snakes were eaten from, but a low-preference food (carrot) under snakes went untouched by all subjects. The results suggest that group-members evaluate potential risks and benefits of competing for a restricted resource, and that dominance status, while an important factor, is only one element in the equation. |
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no |
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Call Number |
refbase @ user @ |
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809 |
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Author |
Houpt, K.A.; Perry, P.J.; Hintz, H.F.; Houpt, T.R. |
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Title |
Effect of meal frequency on fluid balance and behavior of ponies |
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Journal Article |
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Year |
1988 |
Publication |
Physiology & behavior |
Abbreviated Journal |
Physiol. Behav. |
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Volume |
42 |
Issue |
5 |
Pages |
401-407 |
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Keywords |
Animals; Behavior, Animal/*physiology; Blood Proteins/analysis; *Eating; Female; Hematocrit; Horses/blood/*physiology; Osmolar Concentration; *Water-Electrolyte Balance |
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Abstract |
Twelve ponies were fed their total daily ration either as one large meal or divided into six small meals. Pre- and post-feeding behavior was recorded six times a day. Blood samples were taken for 30 min before and two hr after the meal. Plasma protein increased from 7.0 to a peak of 7.3 g/dl with small meals and from 7.3 to 8.1 g/dl with large meals, and returned to pre-feeding levels by 90 min post-feeding. Hematocrit rose from 33.3 to 34.1% with small meals and from 33.0 to 36.0% with large meals. These rapid and short-lived increases indicate a decrease in plasma volume. Plasma osmolality rose with feeding from 283 to 285 mosmoles/kg with small meals and from 281 to 288 mosmoles/kg with large meals. Water availability had no significant effect on blood changes. Digestibility and rate of passage were measured with chromic oxide, but there were no differences. Vocalizing (neighing) and walking occurred more often before than after feeding, while eating bedding and engaging in other oral behaviors were more frequent after feeding. |
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Department of Physiology, New York State College of Veterinary Medicine, Cornell University, Ithaca 14853 |
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English |
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0031-9384 |
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PMID:3393599 |
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refbase @ user @ |
Serial |
47 |
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