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Author |
Clutton-Brock, T.H.; Guinness, F.E.; Albon, S.D. |
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Title |
Red Deer: The Behavior and Ecology of Two Sexes |
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Miscellaneous |
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Year |
1982 |
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Equine Behaviour @ team @ |
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4886 |
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Author |
Clark, B. |
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Title |
African wild ass |
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Journal Article |
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Year |
1982 |
Publication |
Oryx |
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Oryx |
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Volume |
17 |
Issue |
1 |
Pages |
28-31 |
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The African wild ass is endangered. Its habitat is a drought-stricken war zone; its flesh is eaten and is believed to cure hepatitis; it is eagerly sought by dealers and collectors. The author, Chief Curator at Israel's Hai-Bar reserve, examines the problems hindering the conservation of this animal and explains why it is urgently necessary to list it on Appendix I of the Convention on International Trade in Endangered Species of Wild Fauna and Flora at its meeting in April 1983. |
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Equine Behaviour @ team @ |
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2260 |
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Author |
Churcher, C. S. |
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Title |
Oldest Ass Recovered from Olduvai Gorge, Tanzania, and the Origin of Asses |
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Journal Article |
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Year |
1982 |
Publication |
Journal of Paleontology |
Abbreviated Journal |
J. Paleontol. |
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56 |
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5 |
Pages |
1124-1132 |
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Abstract
An isolated right metatarsal III from an adult small monodactyl equid was recovered in situ from the middle of Bed II at Evelyn Fuchs-Hans Reck Korongo, Olduvai Gorge, Tanzania in 1963. Interosseous contacts for splint metatarsals II and IV are less evident than in any modern comparative Equus metapodials in Leiden, Holland, London, England or in the field in Africa: horses (E. caballus), zebras (E. burchellii, E. grevyi, E. quagga) and asses (E. a. asinus, E. a. africanus), of which the horses and asses were domesticates. The specimen is provisionally assigned to Equus (Asinus) asinus. The estimated height at the shoulders is less than a meter for the animal in life, comparable to a small donkey. |
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refbase @ user @ |
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105 |
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Campitelli, S.; Carenzi, C.; Verga, M. |
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Title |
Factors which influence parturition in the mare and development of the foal |
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Journal Article |
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Year |
1982 |
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Applied Animal Ethology |
Abbreviated Journal |
Appl. Animal. Ethol. |
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9 |
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1 |
Pages |
7-14 |
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Observations are reported of 127 foals born to 127 mares. In particular, comparisons are made between the mare's tendency to foal at night, the length of gestation, the weight of the foal and the weight of the foetal membrane, the time taken by the foal to attain a standing position and the time taken by the mare to expel the foetal membrane and the age of the mare and the season.
The new facts that emerge from the results are: (a) foals from middle-aged (6–11 years) mares are heavier; (b) variations of gestation length are related to the month of conception (just a trend, not a statistically significant result); (c) time for the foal to stand is related to the foal sex (females: 56.3 minutes; males 70.6 minutes, on average), and to the time taken by the mare to expel the foetal membrane; (d) parturitions take place mainly (80%) during the hours of darkness. In spring, the percentage of night births (85%) is higher than in winter (78%). |
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from Professor Hans Klingels Equine Reference List |
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no |
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984 |
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Author |
Brooks, P.M. |
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Title |
Zebra, wildebeest and buffalo sub-population areas in the Hluhluwe-Corridor-Umfolozi Complex, Zululand, and their application in management. |
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Journal Article |
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Year |
1982 |
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S. Afr. J. Wildl. Res. |
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12 |
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140-146 |
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Equine Behaviour @ team @ |
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2251 |
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Author |
Boitani, L. |
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Title |
Patterns of homesites attendance in two Minnesota wolf packs |
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Year |
1982 |
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Wolves of the World: Perspectives of Behavior, Ecology and Conservation |
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Noyes, Park Ridge |
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New York |
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Harrington, F.H.; Paquet, P.C. |
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Equine Behaviour @ team @ Boitani1982 |
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6474 |
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Author |
Beck, B.B. |
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Title |
Chimpocentrism: Bias in cognitive ethology |
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Year |
1982 |
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Journal of Human Evolution |
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11 |
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1 |
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3-17 |
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herring gull; chimpanzee; cognition; tool-use; shell-dropping; mollusk; predation |
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Abstract |
Herring gulls drop hard-shelled mollusks and hermit crab-inhabited molluskan prey in order to break the shells and gain access to the edible interior. A field study of predatory shell dropping on Cape Cod, Massachusetts, U.S.A. showed that the gulls usually drop the same shell repeatedly, orient directly to dropping sites that are invisible from the point at which the mollusks are captured, drop preferentially on hard surfaces, adjust dropping heights to suit the area and elasticity of the substrate, orient directly into the wind while dropping, sever the large defensive cheliped of hermit crabs before consumption, and rinse prey that is difficult to swallow. Proficiency in prey dropping is acquired through dropping objects in play, trial-and-error learning, and perhaps, observation learning.
Observable attributes of predatory shell-dropping support inferences that the gulls are capable of extended concentration, purposefulness, mental representation of spatially and temporally displaced environmental features, cognitive mapping, cognitive modeling, selectivity, and strategy formation. Identical cognitive processes have been inferred to underlie the most sophisticated forms of chimpanzee tool-use.
Advanced cognitive capacities are not restricted to chimpanzees and other pongids, and are not associated uniquely with tool use. The chimpocentric bias should be abandoned, and reconstructions of the evolution of intelligence should be modified accordingly. |
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Equine Behaviour @ team @ |
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4414 |
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Author |
Beaver Bv, |
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Title |
Aggressive bhavior associated with naturally elevated serum Testosterone in mares |
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Journal Article |
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Year |
1982 |
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Appl Anim Ethol |
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8 |
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425-428 |
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from Professor Hans Klingels Equine Reference List |
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no |
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925 |
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Author |
Baba, M., T.; Doi, H.; Ikeda, T.; Iwamoto; Ono Y. |
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Title |
A census of large mammals in Omo National Park, Ethiopia |
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1982 |
Publication |
African Journal of Ecology |
Abbreviated Journal |
Afr. J. Ecol. |
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20 |
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3 |
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207-210 |
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Equine Behaviour @ team @ |
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2218 |
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Author |
Arnold Gw, G.A. |
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Title |
Ethogram of agonistic behaviour for thoroughbred horses |
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1982 |
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Applied Animal Ethology |
Abbreviated Journal |
Appl. Animal. Ethol. |
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8 |
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5-25 |
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Social interactions between individual horses were observed in two herds each comprising a stallion and a number of mares. In one herd, the animals were observed whilst grazing and resting; in the other, nearest neighbours were recorded when the animals were grazing, and social interactions were noted when the animals were feeding on hay.
In both herds, the horses showed marked preferences for the company of specific individuals when they were grazing. In one herd, the associations were mainly between individuals that had been associated prior to being put in the herd. In the other herd, this was not the case. A new statistic was produced for testing for specific company preference. In both herds, the stallion was dominant over all mares and never received any aggression.
The complete social hierarchy could not be determined for the herd which was observed only when grazing because social contact was restricted to that within groups or pairs that associated together. In the herd to which hay was fed, a non-linear hierarchy existed. Statistics were produced to quantify both the general level of dominance of a horse and its specific dominance or subordination to every other horse. It is suggested that these statistics, and one for quantifying the general aggressiveness of a horse, could be widely used.
A principal component analysis allowed the horses to be characterised socially according to aggressiveness, their attitude to other horses and their attractiveness to other horses. |
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from Professor Hans Klingels Equine Reference List |
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899 |
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