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Author Friedberger, J.C.
Title Modern horse training methods--what is justifiable? Type Journal Article
Year (up) 1970 Publication The Veterinary Record Abbreviated Journal Vet. Rec.
Volume 87 Issue 8 Pages 229-231
Keywords Animals; *Behavior, Animal; Ethics; *Horses; Learning
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Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0042-4900 ISBN Medium
Area Expedition Conference
Notes PMID:5529870 Approved no
Call Number refbase @ user @ Serial 1967
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Author Berger, J.
Title Organizational systems and dominance in feral horses in the Grand Canyon Type Journal Article
Year (up) 1977 Publication Behavioral Ecology and Sociobiology Abbreviated Journal Behav. Ecol. Sociobiol.
Volume 2 Issue 2 Pages 131-146
Keywords
Abstract 1. Several aspects of the behavioral ecology of feral horses (Equus caballus) were studied in Grand Canyon, Arizona, USA. Most bands contained three to five horses that included one stallion and his harem. Males that did not obtain a harem remained solitary. Throughout the study bands remained stable in composition.

2. Home ranges for all bands decreased in size in successive warm months, probably due to increased ambient temperature and drought. This resulted in greater utilization of spring areas that led to increased interband confrontation and agonistic display.

3. Territoriality was not observed in individual horses or bands, but bands hierarchial in both inter- and intraband structures. Interband stallion dominance was reinforced through posturing and fighting. Intraband hierarchies, as determined by dominance coefficients, were independent of individual size in three of four bands.

4. Indexes of nervousness (NER), calculated while horses were drinking, showed that stallions were less nervous than mares. A low NER was correlated with individuals leading toward drinking areas, whereas a high NER existed in individuals initiating flight although no single horse acted consistently as a leader.

5. Diurnal activity patterns were correlated with ambient temperatures.
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Notes Approved no
Call Number refbase @ user @ Serial 748
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Author Wittenberger, James F.
Title Animal Social Behavior Type Book Whole
Year (up) 1981 Publication Abbreviated Journal
Volume Issue Pages
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Publisher Duxbury Press Place of Publication Boston Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN 978-0878722952 Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4262
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Author Berger, J.
Title Induced abortion and social factors in wild horses Type Journal Article
Year (up) 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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Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0028-0836 ISBN Medium
Area Expedition Conference
Notes PMID:6682487 Approved no
Call Number Equine Behaviour @ team @ Serial 4365
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Author Berger, J.; Rudman, R.
Title Predation and Interactions between Coyotes and Feral Horse Foals Type Journal Article
Year (up) 1985 Publication ournal of Mammalogy Abbreviated Journal J. Mammal.
Volume 66 Issue 2 Pages 401-402
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Notes Approved no
Call Number Serial 2017
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Author Berger, J
Title Wild horses of the Great Basin Type Book Whole
Year (up) 1986 Publication University of Chicago Press, Abbreviated Journal Univ. of Chic. Press
Volume Issue Pages
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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Publisher University of Chicago Press Place of Publication Chicago Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN 0-226-04367-3 Medium
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Notes Approved no
Call Number refbase @ user @ Serial 659
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Author Berger, J.
Title Wild Horses of the Great Basin: Social Competition and Population Size Type Book Whole
Year (up) 1986 Publication Abbreviated Journal
Volume Issue Pages
Keywords Wildlife Behavior Ecology
Abstract Editorial Reviews

From Library Journal

Berger begins this scholarly and absorbing treatise by discussing the natural history of the horse in general. Then, on the basis of several years of field work, he describes and details the behavior and ecology of the wild horses in the Great Basin Desert of Nevada. The purpose of the book is not, however, merely to describe natural history, but also to test quantitatively several basic ecological hypotheses. Berger has done both well, and his book will be a major source of information on North American wild horses for years to come. The book will interest specialists and graduate students primarily. It may also appeal to anyone with a strong interest in wild horses, and the remote and starkly beautiful Great Basin. Nicholas J. Volkman, Point Reyes Bird Observatory, Stinson Beach, Cal.

Copyright 1986 Reed Business Information, Inc.
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Corporate Author Thesis
Publisher University of Chicago Press Place of Publication Chicago Editor
Language Englisch Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN 978-0226043678 Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 2173
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Author Cunningham, C.; Berger, J.
Title Wild horses of the Granite Range Type Journal Article
Year (up) 1986 Publication Natural History Abbreviated Journal
Volume Issue Pages 32-39
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 2279
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Author Berger, J.; Cunningham, C.
Title Influence of Familiarity on Frequency of Inbreeding in Wild Horses Type Journal Article
Year (up) 1987 Publication Evolution Abbreviated Journal Evolution
Volume 41 Issue Pages 229-231
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 2232
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Author Berger, J.; Cunningham, C.
Title Size-Related Effects on Search Times in North American Grassland Female Ungulates Type Journal Article
Year (up) 1988 Publication Ecology Abbreviated Journal
Volume 69 Issue 1 Pages 177-183
Keywords no keywords available
Abstract Feeding and searching (&#61; vigilance) rates arise as a result of many interrelated factors including trophic level, diet, reproductive condition, sex, habitat, body mass, and potential predation pressure. Because of unique ecological conditions in which the confounding influences of all but two of these variables could be minimized, we examined the hypothesis that body mass alone accounts for interspecific differences in search times, and tested it with females of four sympatric native North American ungulates (Bison bison, Antilocapra americana, Ovis canadensis, and Odocoileus hemionus). When the effects of group size were controlled, smaller bodied species were more vigilant (per unit body mass) than larger ones. However, search times (ST) also scaled to body mass, and between 81 and 97&#37; of the ST variance was explained by either exponential or power functions. To remove the potential bias that predators exert different influences on species of varying size, search times of bison in areas with and without their major predator, wolves (Canis lupus), were contrasted; search times did not differ between sites. Our results highlight the importance of designing field research that controls for confounding variables prior to attempting to scale behavioral processes to ecological events. See full-text article at JSTOR
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Publisher Ecological Society of America Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0012-9658 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 2233
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