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Author |
Zahn-Waxler, C. & Radke-Yarrow, M. |
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Title |
The development of altruism: Alternative research strategies. |
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Book Chapter |
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Year |
1982 |
Publication |
The development of prosocial behavior |
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109-138 |
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Zahn-Waxler, C. & Radke-Yarrow, M. (1982) The development of altruism:
Alternative research strategies. In: The development of prosocial behavior, ed.
N. Eisenberg. Academic Press. [aSDP] |
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Academic Press |
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New York |
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Eisenberg, N. |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5061 |
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Author |
Tobin, T.; Combie, J.D. |
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Title |
Performance testing in horses: a review of the role of simple behavioral models in the design of performance experiments |
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Journal Article |
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Year |
1982 |
Publication |
Journal of Veterinary Pharmacology and Therapeutics |
Abbreviated Journal |
J Vet Pharmacol Ther |
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Volume |
5 |
Issue |
2 |
Pages |
105-118 |
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Keywords |
Analgesics, Opioid/pharmacology; Animals; Apomorphine/pharmacology; Behavior, Animal/*drug effects; Dose-Response Relationship, Drug; Fentanyl/pharmacology; Horses/*physiology; Methylphenidate/pharmacology; *Models, Biological; Motor Activity/drug effects |
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ISSN |
0140-7783 |
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PMID:6125601 |
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refbase @ user @ |
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1957 |
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Author |
Penzhorn Bl, |
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Title |
Home range sizes of Cape Mountain Zebras in the mountain zebra national park |
Type |
Journal Article |
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Year |
1982 |
Publication |
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Abbreviated Journal |
Koedoe |
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Volume |
25 |
Issue |
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Pages |
103-108 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1453 |
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Author |
Davidson, D., |
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Title |
Rational Animals |
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Book Chapter |
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Year |
1982 |
Publication |
reprinted in Davidson (2001); Subjective, Intersubjective, Objective |
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95-105 |
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Oxford University Press |
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Oxford |
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Equine Behaviour @ team @ |
Serial |
4791 |
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Author |
Penzhorn Bl, |
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Title |
Age determination in the Cape Mountain Zebras in the mountain zebra natinoal park |
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Journal Article |
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Year |
1982 |
Publication |
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Abbreviated Journal |
Koedoe |
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Volume |
25 |
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Pages |
89-102 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1451 |
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Author |
Klingel, H. |
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Title |
Social organization of feral horses |
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Journal Article |
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Year |
1982 |
Publication |
Journal of Reproduction and Fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
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Volume |
32 |
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Pages |
89-95 |
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Keywords |
Animals; Animals, Wild; Female; Horses/*physiology; Male; Sexual Behavior, Animal; *Social Behavior; Territoriality |
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The basic social unit in feral horses is the family group consisting of one stallion, one to a few unrelated mares and their foals. Surplus stallions associate in bachelor groups. Stallions are instrumental in bringing mares together in a unit which then persists even without a stallion. The similarity of social organization in populations living in a variety of different habitats indicates that feral horses have reverted to the habits of their wild ancestors, and that domestication has had no influence on this basic behavioural feature. |
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0449-3087 |
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Notes |
PMID:6962906 |
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Call Number |
refbase @ user @ |
Serial |
1958 |
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Author |
Penzhorn Bl, |
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Title |
Soil- eating by Cape Mountain Zebras in the mountain zebra nationl park |
Type |
Journal Article |
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Year |
1982 |
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Abbreviated Journal |
Koedoe |
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25 |
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83-88 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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1454 |
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Author |
Turner, J.W.J.; Kirkpatrick, J.F. |
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Title |
Androgens, behaviour and fertility control in feral stallions |
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Journal Article |
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Year |
1982 |
Publication |
Journal of reproduction and fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
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32 |
Issue |
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Pages |
79-87 |
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Keywords |
Animals; Animals, Wild; Copulation/drug effects; Female; *Fertility/drug effects; Horses/*physiology; Male; Periodicity; Pregnancy; Seasons; *Sexual Behavior, Animal/drug effects; Sexual Maturation; Sperm Count; Sperm Motility/drug effects; Testosterone/*blood/pharmacology |
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This field study of feral stallions in Montana and Idaho examines and correlates the seasonal pattern of plasma androgens and specific sociosexual behaviour and reports the effect of a long-acting androgenic steroid on this behaviour and on fertility. Plasma testosterone was measured by competitive protein binding assay in samples obtained by jugular venepuncture from captured animals. In samples taken from 34 sexually mature stallions in 6 different months during the year, a definite seasonal pattern in testosterone was present, with a peak in May (3.04 +/- 0.63 ng/ml) and a nadir in December (1.55 +/- 0.34 ng/ml). Values were less than 2.0 ng/ml in non-breeding months and greater than 2.4 ng/ml in breeding months. Behavioural endpoints measured were (1) stallion scent marking in response to elimination by mares (elimination marking), (2) mounting and (3) copulation. The frequencies of each of these endpoints followed closely the seasonal pattern seen for plasma androgens. In the fertility study microcapsulated testosterone propionate (microTP) was administered i.m. to 10 harem stud stallions 3 months before the 1980 breeding season. In these stallions and in 10 control harem studs, the above behavioural endpoints were examined in the 1980 and 1981 breeding seasons, and foal counts were made in 1981. There were no direct inhibitory or stimulatory effects of microTP treatment on any of the behavioural endpoints in either year. In 1981 foals were produced in 87.5% of the control bands and 28.4% of the microTP-treated bands. These results indicate that microencapsulated testosterone propionate can provide effective fertility control in feral horses without causing significant alterations in sociosexual behaviour. |
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0449-3087 |
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Notes |
PMID:6962905 |
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138 |
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Author |
Eisenmann V, K.A. |
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Title |
Analyses multidemensionelles de métapodes d'Equus sensu lato |
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Journal Article |
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Year |
1982 |
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Abbreviated Journal |
Bull Mus natn Hist nat |
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Volume |
4 |
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Pages |
75-103 |
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from Professor Hans Klingels Equine Reference List |
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1062 |
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Author |
Nishida T; Hiraiwa M |
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Title |
Natural history of tool-using behavior by wild chimpanzees in feeding upon wood-boring ants |
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Journal Article |
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1982 |
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J. Hum. Evol. |
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11 |
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73 |
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Equine Behaviour @ team @ |
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3022 |
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