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Epstein H, |
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Title |
Descent and origin of the ass |
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Book Chapter |
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Year |
1971 |
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In Epstein: The origin of the domestic animals of Africa. II. |
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394-398 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1069 |
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Author |
Epstein H, |
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Title |
Wild Ass |
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Journal Article |
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Year |
1971 |
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Abbreviated Journal |
In Epstein: The origin of the domestic animals of Africa. II |
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378-381 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1070 |
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Author |
Epstein H, |
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Title |
Wild horses – Recent and extinct |
Type |
Book Chapter |
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Year |
1971 |
Publication |
In: The origin of the domestic animals of Africa II |
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Pages |
401-417 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1071 |
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Author |
Feist, J.D. |
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Title |
Behavior of feral horses in the Pryor Mountain Wild Horse Range |
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Manuscript |
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Year |
1971 |
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Master's thesis |
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University of Michigan |
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Call Number |
Equine Behaviour @ team @ |
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2291 |
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Author |
Gardner, E.L.; Engel, D.R. |
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Title |
Imitational and social facilitatory aspects of observational learning in the laboratory rat |
Type |
Journal Article |
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Year |
1971 |
Publication |
Psychonomic Science |
Abbreviated Journal |
Psychon. Sci. |
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Volume |
25 |
Issue |
1 |
Pages |
5-6 |
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Abstract |
Rats acquired a food-motivated leverpressing response by “observational learning” or by trial-and-error learning under conditions of social facilitation or isolation. Both the observational learning and social facilitation Ss learned faster than did the isolated trial-and-error Ss. There was no difference in speed of learning between the observational learning and social facilitation groups. It is suggested that some previous studies purporting to demonstrate observational learning may have demonstrated socially facilitated trial-and-error learning instead. |
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0033-3131 |
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Call Number |
Equine Behaviour @ team @ Gardner1971 |
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6421 |
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Author |
Hamilton, W.D. |
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Title |
Geometry for the selfish herd |
Type |
Journal Article |
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Year |
1971 |
Publication |
Journal of theoretical biology |
Abbreviated Journal |
J. Theor. Biol. |
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Volume |
31 |
Issue |
2 |
Pages |
295-311 |
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Keywords |
Animals; Anura; *Behavior, Animal; Breeding; Communication; Evolution; Fear; Metallurgy; *Models, Biological; Probability; Snakes; *Spatial Behavior |
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Abstract |
This paper presents an antithesis to the view that gregarious behaviour is evolved through benefits to the population or species. Following Galton (1871) and Williams (1964) gregarious behaviour is considered as a form of cover-seeking in which each animal tries to reduce its chance of being caught by a predator.
It is easy to see how pruning of marginal individuals can maintain centripetal instincts in already gregarious species; some evidence that marginal pruning actually occurs is summarized. Besides this, simply defined models are used to show that even in non-gregarious species selection is likely to favour individuals who stay close to others.
Although not universal or unipotent, cover-seeking is a widespread and important element in animal aggregation, as the literature shows. Neglect of the idea has probably followed from a general disbelief that evolution can be dysgenic for a species. Nevertheless, selection theory provides no support for such disbelief in the case of species with outbreeding or unsubdivided populations.
The model for two dimensions involves a complex problem in geometrical probability which has relevance also in metallurgy and communication science. Some empirical data on this, gathered from random number plots, is presented as of possible heuristic value. |
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English |
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ISSN |
0022-5193 |
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Notes |
PMID:5104951 |
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Call Number |
refbase @ user @ |
Serial |
771 |
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Author |
Hassenberg L, |
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Title |
Verhalten bei Einhufern |
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Journal Article |
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Year |
1971 |
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Abbreviated Journal |
Die Neue Brehmbücherei |
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Volume |
427 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Call Number |
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Serial |
1164 |
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Author |
Hechler B, |
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Title |
Beitrag zur Etholgie des Islandpferdes |
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Year |
1971 |
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Abbreviated Journal |
Diss. |
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Notes |
from Professor Hans Klingels Equine Reference List |
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Serial |
1167 |
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Author |
Hoogstraal, H.; Mitchell, R.M. |
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Title |
Haemaphysalis (Alloceraea) aponommoides Warburton (Ixodoidea: Ixodidae), description of immature stages, hosts, distribution, and ecology in India, Nepal, Sikkim, and China |
Type |
Journal Article |
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Year |
1971 |
Publication |
The Journal of Parasitology |
Abbreviated Journal |
J Parasitol |
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Volume |
57 |
Issue |
3 |
Pages |
635-645 |
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Keywords |
Altitude; Animals; Artiodactyla; Birds; Buffaloes; Carnivora; Cattle; China; Deer; Dogs; Ecology; Female; Goats; Horses; Humans; India; Insectivora; Larva/anatomy & histology; Male; Mice; Nepal; Rats; Rodentia; Sciuridae; Seasons; Sheep; Tick Infestations/*epidemiology; Ticks/*anatomy & histology/growth & development |
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0022-3395 |
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PMID:5090972 |
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Call Number |
Equine Behaviour @ team @ |
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2730 |
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Author |
Houpt, T.R.; Houpt, K.A. |
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Title |
Nitrogen conservation by ponies fed a low -protein ration |
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Journal Article |
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Year |
1971 |
Publication |
American journal of veterinary research |
Abbreviated Journal |
Am J Vet Res |
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Volume |
32 |
Issue |
4 |
Pages |
579-588 |
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Keywords |
Administration, Oral; Amino Acids/biosynthesis; Animals; Anti-Infective Agents/pharmacology; Body Weight/drug effects; Dietary Proteins/*pharmacology; Horses/*metabolism; Nitrogen/*metabolism; Urea/administration & dosage/antagonists & inhibitors/metabolism; Water/metabolism |
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0002-9645 |
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PMID:5110116 |
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refbase @ user @ |
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62 |
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