Records |
Author |
Bloom, P. |
Title |
Behavior. Can a dog learn a word? |
Type |
Journal Article |
Year |
2004 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
Volume |
304 |
Issue |
5677 |
Pages |
1605-1606 |
Keywords |
Animals; Child; Child, Preschool; *Dogs; Humans; *Learning; *Memory; *Vocabulary |
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Department of Psychology, Yale University, Post Office Box 208205, New Haven, CT 06520-8205, USA. paul.bloom@yale.edu |
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English |
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1095-9203 |
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PMID:15192205 |
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28 |
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Author |
Duncan, P. |
Title |
Determinants of the use of habitat by horses in a mediterranean wetland |
Type |
Journal Article |
Year |
1983 |
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Abbreviated Journal |
J. Anim. Ecol. |
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52 |
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93-109 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1031 |
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Author |
Duncan, P.; Foose, T. J.; Gordon, I. J.; Gakahu,C. G.; Lloyd, M. |
Title |
Comparative nutrient extraction from forages by grazing bovids and equids: a test of the nutritional model of equid/bovid competition and coexistence |
Type |
Journal Article |
Year |
1990 |
Publication |
Oecologia |
Abbreviated Journal |
Oecologia |
Volume |
84 |
Issue |
3 |
Pages |
411-418 |
Keywords |
Ruminant – Hind-gut fermenter – Intake – Digestion – Competition |
Abstract |
Ruminants are unevenly distributed across the range of body sizes observed in herbivorous mammals; among extant East African species they predominate, in numbers and species richness, in the medium body sizes (10-600 kg). The small and the large species are all hind-gut fermenters. Some medium-sized hind-gut fermenters, equid perissodactyls, coexist with the grazing ruminants, principally bovid artiodactyls, in grassland ecosystems. These patterns have been explained by two complementary models based on differences between the digestive physiology of ruminants and hind-gut fermenters. The Demment and Van Soest (1985) model accounts for the absence of ruminants among the small and large species, while the Bell/Janis/Foose model accounts both for the predominance of ruminants, and their co-existence with equids among the medium-sized species (Bell 1971; Janis 1976; Foose 1982). The latter model assumes that the rumen is competitively superior to the hind-gut system on medium quality forages, and that hind-gut fermenters persist because of their ability to eat more, and thus to extract more nutrients per day from high fibre, low quality forages. Data presented here demonstrate that compared to similarly sized grazing ruminants (bovids), hind-gut fermenters (equids) have higher rates of food intake which more than compensate for their lesser ability to digest plant material. As a consequence equids extract more nutrients per day than bovids not only from low quality foods, but from the whole range of forages eaten by animals of this size. Neither of the current nutritional models, nor refinements of them satisfactorily explain the preponderance of the bovids among medium-sized ungulates; alternative hypotheses are presented. |
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from Professor Hans Klingels Equine Reference List |
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yes |
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Serial |
1035 |
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Author |
Labneaux D, P.E. |
Title |
Embryo TransferAre pony and larger mares similar as recipients for non-surgical transfer of Day 7 embryos? |
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Embryo Transfer |
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64-67 |
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from Professor Hans Klingels Equine Reference List |
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Serial |
1335 |
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Author |
Penzhorn,B.L.; Novellie, P.A. |
Title |
Some behavioural traits of Cape mountain zebras and their implications for the management of asmall conservation area |
Type |
Journal Article |
Year |
1991 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
Volume |
29 |
Issue |
1-4 |
Pages |
293-299 |
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Abstract |
The social organisation of mountain zebras (Equus zebra zebra) consists of breeding herds (1 male, 2.4 females (range 1–5) and their offspring) which remain stable over many years, and bachelor groups. Foals leave their maternal herds of their own accord. In a free-ranging population the behaviour of the foals in leaving the herd is probably an adequate mechanism to prevent inbreeding, but inbreeding may occur in confined populations. Individual recognition by means of stripe pattern allows a check to be kept.
Seasonal movement of mountain zebras is associated with a relative change in diet quality (as indicated by crude protein contents of preferred food plants and of faeces) between summer and winter habitats. Any conservation area should be large and varied enough to include both summer and winter habitats. Mountain zebras favour taller grass than most antelope species, harvesting their food at 50–150 mm from the ground. The existence of large populations of antelope could, therefore, be detrimental to zebras. |
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from Professor Hans Klingels Equine Reference List |
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1465 |
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Author |
RÖHRS, M.; EBINGER, P. |
Title |
Progressive und regressive Hirngrößenveränderungen bei Equiden |
Type |
Journal Article |
Year |
1993 |
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Abbreviated Journal |
Z zool Syst Evolut forsch |
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31 |
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233-239 |
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from Professor Hans Klingels Equine Reference List |
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yes |
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Serial |
1513 |
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Author |
Salter Re, P.D. |
Title |
Determinants of mineral lick utilization by feral horses |
Type |
Journal Article |
Year |
1980 |
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Abbreviated Journal |
Northwest Sci |
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54 |
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109-118 |
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from Professor Hans Klingels Equine Reference List |
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1554 |
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Author |
Stander, P.E., Nott, T.B., Lindeque, P.M.; Lindeque, M. |
Title |
Mass marking of zebras in the Etosha National Park, Namibia |
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Journal Article |
Year |
1990 |
Publication |
Madoqua |
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Madoqua |
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17 |
Issue |
1 |
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47-49 |
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from Professor Hans Klingels Equine Reference List |
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yes |
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1627 |
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Author |
Tratz, P. |
Title |
Zebrastreifung eines Norwegerpferdes |
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1650 |
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Author |
Young E, P.B. |
Title |
The reaction of the Cape Mountain Zebra(E. Zebra Zebra) to certain chemical immobilisation drugs |
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Journal Article |
Year |
1972 |
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Koedoe |
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15 |
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95-96 |
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from Professor Hans Klingels Equine Reference List |
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1727 |
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