| Records |
| 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 |
Kirkpatrick, J.F.; Turner, J.W. Jr |
| Title |
Comparative reproductive biology of North American feral horses |
Type |
Journal Article |
| Year |
1986 |
Publication |
Journal of Equine Veterinary Science |
Abbreviated Journal |
J. Equine Vet. Sci. |
| Volume |
6 |
Issue |
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Pages |
224-230 |
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no |
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Equine Behaviour @ team @ |
Serial |
2326 |
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| Author |
Eisenmann V, |
| Title |
Comparative osteology of modern and fossil horses, half-asses and asses |
Type |
Book Chapter |
| Year |
1986 |
Publication |
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Abbreviated Journal |
In: Equids in the ancient world |
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Issue |
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Pages |
67-116 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
1057 |
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| Author |
Zentall, T.R.; Jackson-Smith, P.; Jagielo, J.A.; Nallan, G.B. |
| Title |
Categorical shape and color coding by pigeons |
Type |
Journal Article |
| Year |
1986 |
Publication |
Journal of experimental psychology. Animal behavior processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
| Volume |
12 |
Issue |
2 |
Pages |
153-159 |
| Keywords |
Animals; *Color Perception; Columbidae; *Discrimination Learning; *Form Perception; *Generalization, Stimulus; Psychophysics; Transfer (Psychology) |
| Abstract |
Categorical coding is the tendency to respond similarly to discriminated stimuli. Past research indicates that pigeons can categorize colors according to at least three spectral regions. Two present experiments assessed the categorical coding of shapes and the existence of a higher order color category (all colors). Pigeons were trained on two independent tasks (matching-to-sample, and oddity-from-sample). One task involved red and a plus sign, the other a circle and green. On test trials one of the two comparison stimuli from one task was replaced by one of the stimuli from the other task. Differential performance based on which of the two stimuli from the other task was introduced suggested categorical coding rules. In Experiment 1 evidence for the categorical coding of sample shapes was found. Categorical color coding was also found; however, it was the comparison stimuli rather than the samples that were categorically coded. Experiment 2 replicated the categorical shape sample effect and ruled out the possibility that the particular colors used were responsible for the categorical coding of comparison stimuli. Overall, the results indicate that pigeons can develop categorical rules involving shapes and colors and that the color categories can be hierarchical. |
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0097-7403 |
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| Notes |
PMID:3701264 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
262 |
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| 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 |
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Serial |
1726 |
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| Author |
Gittleman, J.L. |
| Title |
Carnivore Life History Patterns: Allometric, Phylogenetic, and Ecological Associations |
Type |
Journal Article |
| Year |
1986 |
Publication |
The American Naturalist |
Abbreviated Journal |
Am Nat |
| Volume |
127 |
Issue |
6 |
Pages |
744-771 |
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The University of Chicago Press for The American Society of Naturalists |
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0003-0147 |
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no |
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Equine Behaviour @ team @ |
Serial |
5453 |
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| Author |
Skalka P, |
| Title |
Breeding the Hartmann's mountain zebra, Equus zebra hartmannae Matschie, 1898, in the world and in Czechoslovakia |
Type |
Journal Article |
| Year |
1986 |
Publication |
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Abbreviated Journal |
Gazella |
| Volume |
13 |
Issue |
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Pages |
127-138 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
1597 |
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| Author |
Schäfer M, |
| Title |
Beobachtungen zum Verhalten des südiberischen Primitivpferdes |
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1986 |
Publication |
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Abbreviated Journal |
Diss. München |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
1562 |
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| Author |
Cox Je, |
| Title |
Behaviour of the false rig: Causes and treatments |
Type |
Journal Article |
| Year |
1986 |
Publication |
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Abbreviated Journal |
Vet Record |
| Volume |
118 |
Issue |
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Pages |
353-356 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
995 |
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| Author |
Boyd, L. |
| Title |
Behavior problems of equids in zoos |
Type |
Journal Article |
| Year |
1986 |
Publication |
The Veterinary clinics of North America. Equine practice |
Abbreviated Journal |
Vet Clin North Am Equine Pract |
| Volume |
2 |
Issue |
3 |
Pages |
653-664 |
| Keywords |
Aerophagy/veterinary; Aggression/psychology; Animals; *Animals, Zoo; *Behavior, Animal; Coprophagia/psychology; Female; *Horses; Impotence/veterinary; Male; Mastication; Motor Activity; *Perissodactyla; Pregnancy; Sexual Behavior, Animal; Social Environment |
| Abstract |
Behavior problems in zoo equids commonly result from a failure to provide for needs basic to equine nature. Equids are gregarious, and failure to provide companions may result in pacing. Wild equids spend 60 to 70 per cent of their time grazing, and failure to provide ad libitum roughage contributes to the problems of pacing, cribbing, wood chewing, and coprophagia. Mimicking the normal processes of juvenile dispersal, bachelor-herd formation, and mate acquisition reduces the likelihood of agonistic and reproductive behavior problems. Infanticide can be avoided by introducing new stallions to herds containing only nonpregnant mares and older foals. |
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0749-0739 |
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| Notes |
PMID:3492252 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
660 |
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