| Records |
Author  |
Berger, J. |
| Title |
Induced abortion and social factors in wild horses |
Type |
Journal Article |
| Year |
1983 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
303 |
Issue |
5912 |
Pages |
59-61 |
| Keywords |
Abortion, Induced/*veterinary; Abortion, Veterinary/*etiology; Aggression/physiology; Animals; Evolution; Female; Horses/*physiology; Humans; Pregnancy; Sexual Behavior, Animal/*physiology |
| Abstract |
Much evidence now suggests that the postnatal killing of young in primates and carnivores, and induced abortions in some rodents, are evolved traits exerting strong selective pressures on adult male and female behaviour. Among ungulates it is perplexing that either no species have developed convergent tactics or that these behaviours are not reported, especially as ungulates have social systems similar to those of members of the above groups. Only in captive horses (Equus caballus) has infant killing been reported. It has been estimated that 40,000 wild horses live in remote areas of the Great Basin Desert of North America (US Department of Interior (Bureau of Land Management), unpublished report), where they occur in harems (females and young) defended by males. Here I present evidence that, rather than killing infants directly, invading males induce abortions in females unprotected by their resident stallions and these females are then inseminated by the new males. |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0028-0836 |
ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
PMID:6682487 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4365 |
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| Author |
Berger, J, |
| Title |
Social systems, resources, and phylogenetic inertia: an experimental test and its limitations |
Type |
Book Chapter |
| Year |
1988 |
Publication |
Ecology of Social Behavior |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
157-186 |
| Keywords |
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| Abstract |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Academic Press |
Place of Publication |
San Diego |
Editor |
Slobochikoff, C.N. |
| Language |
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Summary Language |
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Original Title |
Ecology of Social Behavior |
| Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2234 |
| Permanent link to this record |
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| Author |
Berger, J |
| Title |
Wild horses of the Great Basin |
Type |
Book Whole |
| Year |
1986 |
Publication |
University of Chicago Press, |
Abbreviated Journal |
Univ. of Chic. Press |
| Volume |
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Issue |
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Pages |
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| Keywords |
wildlife equine behaviour ecology |
| Abstract |
Describes the behavior of wild horses living in the Great Basin Desert of Nevada and discusses the role of the horses in the area's ecology |
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Thesis |
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| Publisher |
University of Chicago Press |
Place of Publication |
Chicago |
Editor |
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Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISBN |
0-226-04367-3 |
Medium |
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Expedition |
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Conference |
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| Notes |
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Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
659 |
| Permanent link to this record |
