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Author |
Leng, V. |
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Title |
Das Vielseitigkeitspferd. Der Vielseitigkeitsreiter. Ausbildung, Training, Event. |
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Book Whole |
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Year |
1992 |
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Blv Verlagsgesellschaft |
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München |
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3 405 14344 6 |
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Equine Behaviour @ team @ |
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4438 |
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Author |
Schmidt, D. |
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Title |
Information Resources in Animal Behavior |
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Journal Article |
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Year |
1992 |
Publication |
Science & Technology Libraries |
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Volume |
12 |
Issue |
1 |
Pages |
69-83 |
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Abstract |
The study of animal behavior has been around for many years, but it is divided into several fields which often do not communicate well. These fields of study include (but are not limited to) comparative psychology, ethology, behavioral ecology, and sociobiology. Comparative psychology is more isolated than the other three fields, which share a common biological/evolutionary background. This paper gives a brief background of the four main fields of animal behavior research, along with a list of sources, both specialized and interdisciplinary. |
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Routledge |
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0194-262x |
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Equine Behaviour @ team @ |
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4725 |
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Author |
Wall, D.L.; Topliff, D.R.; Freeman, D.W.; Wagner, D.G.; Breazile, J.W.; Stutz, W.A. |
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Title |
Effect of dietary cation-anion balance on urinary mineral excretion in exercised horses |
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Journal Article |
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Year |
1992 |
Publication |
Journal of Equine Veterinary Science |
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12 |
Issue |
3 |
Pages |
168-171 |
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Summary Four mares and four geldings of Quarter Horse and Thoroughbred breeding were used in two simultaneous 4x4 Latin square experiments to study the effects of dietary cation-anion balance (DCAB), defined as meq ((Na+K)-C1)/kg dry matter, on urinary pH and mineral excretion in exercised horses. Diets consisted of a pelleted concentrate of corn, soybean meal and cottonseed hulls fed with bermudagrass hay. Treatments with DCAB of +5 (Low, L), +107 (Medium Low, ML), +201 (Medium High, MH) and +327 (High, H), meq ((Na+K)-Cl)/kg dry matter were formed by supplementing diet L with calcium chloride and ammonium chloride, diet ML with calcium chloride and diet H with sodium bicarbonate and potassium citrate (Table 1). Diet MH was not supplemented and served as the control treatment. Horses were conditioned aerobically for 6 weeks using long, slow, distance (LSD) workouts. During the experimental periods, horses were subjected to a combined exercise regimen alternating LSD with an interval-training protocol 6 days/week. There was a significant (P<.01) treatment effect on urine pH; least squares means for L, ML, MH and H were 6.73, 7.17, 7.38, and 7.92. Horses consuming diet L excreted more calcium in the urine (P<.05) than those consuming MH or H. Least squares means for daily urine calcium excretion tended to be linear across treatments and ranged from 19.66 g/day for diet L to 9.12 g/day for diet H. Urinary chloride excretion was higher (P<.05) for L than for MH or H. Horses fed diet H excreted more sodium (P<.05) in urine than horses fed the other diets. Lowering DCAB, increases urinary calcium loss; depending on the level of calcium intake, this could lead to negative calcium balance in exercising horses. |
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ISSN |
0737-0806 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4833 |
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Author |
Stutz, W.A.; Topliff, D.R.; Freeman, D.W.; Tucker, W.B.; Breazile, J.W.; Wall, D.L. |
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Title |
Effects of dietary cation-anion balance on blood parameters in exercising horses |
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Journal Article |
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Year |
1992 |
Publication |
Journal of Equine Veterinary Science |
Abbreviated Journal |
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Volume |
12 |
Issue |
3 |
Pages |
164-167 |
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Summary Four geldings and four mares of primarily Thoroughbred and Quarter Horse breeding were used in simultaneous 4x4 Latin square experiments to test the effects of dietary cation-anion balance (DCAB), defined as meq ((Na+K)-C1)/kg diet dry matter, on blood pH, blood gases, acid-base status and plasma glucose in horses at rest and following anaerobic exercise. Four diets, consisting of a base concentrate of corn, soybean meal and cottonseed hulls fed in a 60:40 ratio with Bermudagrass hay, were formulated to provide a DCAB of 5 (L=Low), 107 (ML=Medium Low), 201 (MH=Medium High) and 327 (H=High) meq ((Na+K)-C1)/kg diet dry matter. Calcium chloride and ammonium chloride were added to treatment L and ML and sodium bicarbonate and potassium citrate were added to treatment H to achieve the desired cation-anion balance. Treatment MH was not supplemented and served as the control treatment. Prior to the experiment, horses performed six weeks of long, slow, distance (LSD) work. During the experimental periods, horses were subjected to an exercise regimen alternating LSD with an interval training protocol 6 days/week. Venous blood pH, pCO2 and bicarbonate levels were significantly lower in horses at rest consuming diet L versus diets MH and H. Blood pH and acid-base parameters decreased with decreasing DCAB. There were no significant differences in blood pH or acid-base parameters between treatments, after anaerobic exercise. Plasma glucose concentrations for treatment L were significantly lower than treatment H at 10, 20, and 30 minutes post-exercise. These data suggest that DCAB has significant effect on acid-base status and indicate that horses consuming diets with low DCAB may experience a metabolic acidosis. |
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0737-0806 |
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Equine Behaviour @ team @ |
Serial |
4834 |
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Author |
Nowak, M.A.; Sigmund, K. |
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Title |
Tit for tat in heterogeneous populations |
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Journal Article |
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Year |
1992 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
355 |
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Pages |
250-253 |
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10.1038/355250a0 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4842 |
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Author |
Dugatkin, L.A.; Mesterton-Gibbons, M.; Houston, A.I. |
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Title |
Beyond the prisoner's dilemma: Toward models to discriminate among mechanisms of cooperation in nature |
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Journal Article |
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Year |
1992 |
Publication |
Trends Evol. Ecol. |
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7 |
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Pages |
202-205 |
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Abstract |
The iterated prisoner's dilemma game, or IPD, has now established itself as the orthodox paradigm for theoretical investigations of the evolution of cooperation; but its scope is restricted to reciprocity, which is only one of three categories of cooperation among unrelated individuals. Even within that category, a cooperative encounter has in general three phases, and the IPD has nothing to say about two of them. To distinguish among mechanisms of cooperation in nature, future theoretical work on the evolution of cooperation must distance itself from economics and develop games as a refinement of ethology's comparative approach. |
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10.1016/0169-5347(92)90074-L |
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Equine Behaviour @ team @ |
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4843 |
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Author |
Aureli, F.; Cossolino, R.; Cordischi, C.; Scucchi, S. |
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Title |
Kin-oriented redirection among Japanese macaques: an expression of a revenge system? |
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Journal Article |
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Year |
1992 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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44 |
Issue |
2 |
Pages |
283-291 |
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The ability to recognize the close associates of other group members may permit the display of redirected aggression against the relatives of the former aggressor. However, the dominance structure and the kin-based alliance system of macaque society are expected not to favour the occurrence of this kin-oriented redirection. Nevertheless, within 1 h of being the victim of an attack, Japanese macaques, Macaca fuscata, were more likely to attack the former aggressor's kin than without such a conflict. The conditions under which the victim redirected against the former aggressor's kin were investigated. This kin-oriented redirection did not occur preferentially either after conflicts between individuals with unstable and/or uncertain dominance relationships or after conflicts with individuals that were unlikely to intervene in favour of their kin. Victims redirected against individuals that were younger than the former aggressor and often subordinate to the victim. They also redirected in an opportunistic way by joining polyadic interactions against the former aggressor's kin. The possibility that this kin-oriented redirection may have a long-term function in changing the aggressive attitude of the aggressor towards the victim is also discussed. In addition, the victim's kin also displayed a form of kin-oriented redirection. They were more likely to attack the kin of an individual after it had attacked their own kin. |
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10.1016/0003-3472(92)90034-7 |
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Equine Behaviour @ team @ |
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4867 |
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Author |
de Waal, F. B. M. |
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Title |
Coalitions as part of reciprocal relations in the Arnhem chimpanzee colony |
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Book Chapter |
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Year |
1992 |
Publication |
Coalitions and Alliances in Humans and Other Animals |
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233-257 |
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Oxford University Press |
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Oxford |
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Harcourt, A.H.; de Waal, F.B.M. |
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Equine Behaviour @ team @ |
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4877 |
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Author |
Manson, J.H. |
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Title |
Measuring female mate choice in Cayo Santiago rhesus macaques |
Type |
Journal Article |
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Year |
1992 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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Volume |
44 |
Issue |
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Pages |
405-416 |
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Abstract |
Few studies of female mate choice have been carried out among free-ranging non-human primates. To qualify as female mate choice, behaviour by oestrous females must predict the occurrence or rate of potentially fertile copulations, in comparisons between heterosexual dyads. In this paper, data are presented to show three behaviour patterns that meet this criterion in free-ranging rhesus macaques, Macaca mulatta, at the island colony of Cayo Santiago: (1) selective cooperation with male sexual solicitations (hip-grasps), (2) restoration of proximity following attacks on females by intruding males, and (3) proximity maintenance (in one of two study groups). Oestrous females maintained proximity preferentially to lower ranking males, but this appeared to reflect differences in the tactics necessary to achieve copulations with males of different dominance ranks, rather than preference for lower ranking mates. Male-oestrous female dyads showed consistency over two consecutive mating seasons in which partner was responsible for proximity maintenance. Male dominance rank was positively correlated with copulatory rate with fertile females. However, in one study group, males to whom oestrous females maintained proximity more actively had higher copulatory rates with fertile females, independent of the effects of male dominance rank. |
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10.1016/0003-3472(92)90051-A |
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Equine Behaviour @ team @ |
Serial |
4889 |
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Author |
Boyd, R.; Richerson, P.J. |
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Title |
Punishment allows the evolution of cooperation (or anything else) in sizable groups |
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Journal Article |
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Year |
1992 |
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Ethol. Sociobiol. |
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13 |
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171-195 |
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Existing models suggest that reciprocity is unlikely to evolve in large groups as a result of natural selection. In these models, reciprocators punish noncooperation by with-holding future cooperation, and thus also penalize other cooperators in the group. Here, we analyze a model in which the response is some form of punishment that is directed solely at noncooperators. We refer to such alternative forms of punishment as retribution. We show that cooperation enforced by retribution can lead to the evolution of cooperation in two qualitatively different ways. (1) If benefits of cooperation to an individual are greater than the costs to a single individual of coercing the other n − 1 individuals to cooperate, then strategies which cooperate and punish noncooperators, strategies which cooperate only if punished, and, sometimes, strategies which cooperate but do not punish will coexist in the long run. (2) If the costs of being punished are large enough, moralistic strategies which cooperate, punish noncooperators, and punish those who do not punish noncooperators can be evolutionarily stable. We also show, however, that moralistic strategies can cause any individually costly behavior to be evolutionarily stable, whether or not it creates a group benefit. |
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10.1016/0162-3095(92)90032-Y |
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Equine Behaviour @ team @ |
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4913 |
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