| Records |
| Author |
Heyes, C.; Galef, B.G. (eds) |
| Title |
Social learning in animals: the roots of culture |
Type |
Book Whole |
| Year |
1996 |
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| Publisher |
Academic Press, Inc. |
Place of Publication |
San Diego, CA |
Editor |
Heyes, C. ; Galef, B.G. |
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978-0122739651 |
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no |
| Call Number |
Equine Behaviour @ team @ home |
Serial |
2174 |
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| Author |
Fragaszy, D.; Visalberghi, E. |
| Title |
Primates “primacy” reconsidered |
Type |
Book Chapter |
| Year |
1996 |
Publication |
Social learning in animals: the roots of culture |
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Pages |
65-84 |
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Academic Press, Inc. |
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Editor |
Heyes, C. ; Galef, B.G. |
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Original Title |
Social learning in animals: the roots of culture |
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978-0122739651 |
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no |
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Equine Behaviour @ team @ home |
Serial |
2175 |
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| Author |
Tebbich, S.; Taborsky, M.; Winkler, H. |
| Title |
Social manipulation causes cooperation in keas |
Type |
Journal Article |
| Year |
1996 |
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| Volume |
52 |
Issue |
1 |
Pages |
1-10 |
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| Abstract |
Abstract. This study assessed whether keas,Nestor notabilis, are able to cooperate in an instrumental task. Seven birds of a captive group were tested in group situations and in dyads. At least two individuals had to manipulate an apparatus to obtain food but only one participant was rewarded. One bird had to push down a lever to enable another one to collect food from a box. The distribution of the two different roles was clearly dependent on hierarchy. The higher ranking individual always obtained the reward and each bird changed its role according to dominance status. Owing to the non-linear hierarchy in the group, each bird participating in cooperative interactions had at least one submissive partner. Therefore, in group situations the reward was distributed symmetrically and cooperation was persistent. In dyadic test situations, three individual keas aggressively manipulated their respective subordinate partners to open the apparatus. Their dominance status enabled them to force cooperation. |
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Equine Behaviour @ team @ |
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2189 |
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| Author |
King, S.R.B |
| Title |
The social behaviour of a bachelor group of Przewalski horses under free-ranging conditions |
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Journal Article |
| Year |
1996 |
Publication |
Queen Mary and Westfield College |
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Queen Mary and Westfield College, UK |
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no |
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Equine Behaviour @ team @ |
Serial |
2319 |
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| Author |
Dixon, J.C. |
| Title |
Pattern discrimination, learning-set and memory in a pony |
Type |
Journal Article |
| Year |
1996 |
Publication |
Proceedings of the Paper Presented at the Midwestern ..? |
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no |
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Equine Behaviour @ team @ |
Serial |
3599 |
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| Author |
Brückner, Prof. Dr. med. Roland |
| Title |
Dein Pferd, sein Auge, seine Sehweise |
Type |
Book Whole |
| Year |
1996 |
Publication |
Selbstverlag |
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Pages |
80 |
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| Abstract |
Inhalt u.a.: Das Pferdeauge, Sehorgan eines Weidegängers. Das Gesichtsfeld. Hornhaut und Pupille. Bewegungen des Augenpaares. Die Zusammenkoppelung der Augen. Sehschärfe. Scharfeinstellung des Auges für die Nähe. Stereopsis (“dreidimensionales” Sehen). Verhalten bei Blindheit mit verbundenen Augen. Augenkrankheiten bei Pferden. Überprüfung der Gesundheit des Pferdeauges. |
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Selbstverlag |
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Basel |
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Deutsch |
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fehlt |
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fehlt |
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Reiten Lesen Denken @ eberhardhuebener @ |
Serial |
3994 |
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| Author |
Palme, R.; Fischer, P.; Schildorfer, H.; Ismail, M.N. |
| Title |
Excretion of infused 14C-steroid hormones via faeces and urine in domestic livestock |
Type |
Journal Article |
| Year |
1996 |
Publication |
Animal Reproduction Science |
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| Volume |
43 |
Issue |
1 |
Pages |
43-63 |
| Keywords |
Sheep--endocrinology; Pig--endocrinology; Pony; 14C-steroids; Faeces; Urine; Blood |
| Abstract |
The aim of this comparative study was to gain more information about the excretion of steroid hormones in farm animals. This should help to establish or improve non-invasive steroid monitoring procedures, especially in zoo and wildlife animals. Over a period of 4 h the 14C-steroid hormones (3.7 MBq) progesterone (three females), testosterone (three males), cortisol and oestrone (two males, two females) were infused intravenously in sheep, ponies and pigs. Faeces were collected immediately after defecation. Urine was sampled via a permanent catheter in females and after spontaneous urination in males. A total of 88 +/- 10% (mean +/- SD) of the administered radioactivity was recovered. Considerable interspecies differences were measured both in the amounts of steroid metabolites excreted via faeces or urine and the time course of excretion. Progesterone and oestrone in ewes, and progesterone in mares were excreted mainly in the faeces (over 75%). The primary route of excretion of all other 14C-steroids was via the urine but to a different extent. In general, sheep showed the highest degree of faecal excretion and pigs the least. The highest radioactivity in urine (per mmol creatinine) was observed during the infusion or in one of the next two samples thereafter, whereas in faeces it was measured about 12 h (sheep), 24 h (ponies) or 48 h (pigs) after the end of the infusion. Thereafter the radioactivity declined and reached background levels within 2-3 weeks. In faeces, steroid metabolites were present mainly in an unconjugated form, but in blood and urine as conjugates. Mean retention time of faecal radioactivity suggested that the passage rate of digesta (duodenum to rectum) played an important role in the time course of the excretion of steroids. The information derived from this investigation could improve the precision of sampling as well as the extraction of steroids from the faeces. Furthermore, the study demonstrates that it should be possible to establish methods for measuring faecal androgen and cortisol metabolites for assessing male reproductive endocrinology and stress in animals. |
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Equine Behaviour @ team @ |
Serial |
4069 |
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| Author |
Laland, K. N.; Richerson, P. J.; Boyd, R. |
| Title |
Developing a theory of animal social learning. |
Type |
Book Chapter |
| Year |
1996 |
Publication |
Social learning in animals: the roots of culture. |
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| Volume |
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Issue |
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Pages |
129-154 |
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| Publisher |
Academic Press |
Place of Publication |
San Diego, California |
Editor |
Heyes, C. M.;Galef,B. G. J. |
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Equine Behaviour @ team @ home |
Serial |
4093 |
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| Author |
Miller, R.M. |
| Title |
How we can quickly assume the role of horse herd leader: Making horses compliant and willing subjects |
Type |
Journal Article |
| Year |
1996 |
Publication |
Journal of Equine Veterinary Science |
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| Volume |
16 |
Issue |
1 |
Pages |
4-7 |
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no |
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Equine Behaviour @ team @ |
Serial |
4329 |
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| Author |
Lefebvre, L.; Giraldeau, L.-A. |
| Title |
Is social learning an adaptive specialisation? |
Type |
Book Chapter |
| Year |
1996 |
Publication |
Social learning in animals: The root of culture |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
107-128 |
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Academic Press. |
Place of Publication |
San Diego |
Editor |
Heyes, C. M. ;B. G. Galef B. G..Jr. |
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978-0122739651 |
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no |
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Equine Behaviour @ team @ |
Serial |
4415 |
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