Records |
Author |
Clutton-Brock, T.H.; Albon, S.D.; Gibson, R.M.; Guinness, F.E. |
Title |
The logical stag: Adaptive aspects of fighting in red deer (Cervus elaphus L.) |
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Journal Article |
Year |
1979 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
Volume |
27 |
Issue |
Part 1 |
Pages |
211-225 |
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Abstract |
For red deer stags, fighting both has appreciable costs and yields considerable benefits. Up to 6% of rutting stags are permanently injured each year, while fighting success and reproductive success are closely related, within age groups as well as across them. Fighting behaviour is sensitive to changes in the potential benefits of fighting: stags fight most frequently and most intensely where potential benefits are high and tend to avoid fighting with individuals they are unlikely to beat. The relevance of these findings to theoretical models of fighting behaviour is discussed. |
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860 |
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Author |
Conley W, |
Title |
The potential for increase in horse and ass populations: A theoretical analysis |
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Journal Article |
Year |
1979 |
Publication |
Proceedings of a Conference on the Ecology and Behavior of Feral Equids |
Abbreviated Journal |
Symp Ecol and Behav of wild and feral Equids, Laramie |
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221-234 |
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R.H. Denniston |
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from Professor Hans Klingels Equine Reference List |
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991 |
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Author |
Czerlinski, G.H.; Erickson, J.O.; Theorell, H. |
Title |
Chemical relaxation studies on the horse liver alcohol dehydrogenase system |
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Journal Article |
Year |
1979 |
Publication |
Physiological Chemistry and Physics |
Abbreviated Journal |
Physiol Chem Phys |
Volume |
11 |
Issue |
6 |
Pages |
537-569 |
Keywords |
Alcohol Oxidoreductases/*metabolism; Animals; Buffers; Electron Transport; Ethanol/metabolism; Horses; Hydrogen-Ion Concentration; Liver/*enzymology; Mathematics; NAD/metabolism; Oscillometry; Osmolar Concentration; Temperature; Time Factors |
Abstract |
Chemical relaxation studies on the system horse liver alcohol dehydrogenase, nicotinamide adenine dinucleotide, and ethanol were conducted observing fluorescence changes between 400 and 500 nm. Temperature-jump experiments were performed at pH 6.5, 7.0, 8.0, and 9.0; concentration-jump experiments at pH 9.0. The reciprocal of the slowest relaxation time was found to be linearly dependent upon the enzyme concentration for relatively low enzyme concentrations, as predicted earlier. Use of the wide pH-range necessitated expression of the four apparent dissociation constants of the catalytic reaction cycle in terms of pH-independent constants. The system was described in terms of only one (or two) catalysis-linked protons not associated with the electron transfer. Protonic steps in a buffered system are in rapid equilibrium, too fast to be measured with the equipment available. Assuming only two of the four bimolecular reaction steps in the four-step cycle are fast compared to the remaining two, six cases may be considered with six expressions for the reciprocal of the slowest relaxation time. Comparison with the experimental data revealed that the bimolecular reaction steps governing the slowest relaxation time change with pH. Above the effective time resolution of the temperature-lump instrument with fluorescence detection (0.1 msec) only one other relaxation time was detectable and only at pH 9. This relaxation time, found to be independent of the concentration of all reactants within experimental error (r = 10 +/- 5 msec), is most likely due to an interconversion among ternary complexes. |
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0031-9325 |
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PMID:44918 |
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Equine Behaviour @ team @ |
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3813 |
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Author |
Denniston, R.H. |
Title |
The varying role of the male in feral horses |
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Journal Article |
Year |
1979 |
Publication |
Symp Ecol and Behav of wild and feral Equids, Laramie, |
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Symp Ecol and Behav of wild and feral Equids, Laramie, |
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93-98 |
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from Professor Hans Klingels Equine Reference List |
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1007 |
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Author |
Duncan P, |
Title |
Time-budgets of Camrgue horses; II. Time- budgets of adult horses and weaned sub-adults |
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Journal Article |
Year |
1979 |
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Abbreviated Journal |
Behaviour |
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72 |
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26-49 |
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from Professor Hans Klingels Equine Reference List |
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1029 |
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Author |
Duncan, P.; Vigne, N. |
Title |
The effect of group size in horses on the rate of attacks by blood-sucking flies |
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Journal Article |
Year |
1979 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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27 |
Issue |
Part 2 |
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623-625 |
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refbase @ user @ |
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763 |
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Author |
Eisenmann V, |
Title |
Etude des cornets des dents incisives infürieures des Equuq actuels et fossiles |
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Journal Article |
Year |
1979 |
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Paleont Italica |
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71 |
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55-75 |
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from Professor Hans Klingels Equine Reference List |
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1049 |
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Author |
Eisenmann V, |
Title |
Les métapodes d`Equus sensu lato. |
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Journal Article |
Year |
1979 |
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Abbreviated Journal |
Géobios |
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12 |
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863-886 |
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from Professor Hans Klingels Equine Reference List |
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1050 |
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Author |
Eisenmann V, |
Title |
Paléontologie – Caractères évolutifs du genre Equus. |
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Journal Article |
Year |
1979 |
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C R Acad Sc Paris |
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288 |
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497-500 |
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from Professor Hans Klingels Equine Reference List |
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1051 |
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Author |
Fedak Ma, S.H. |
Title |
Reappraisal of energetics of locomotion shows identical cost in bipeds and quadrupeds including ostrich and horse |
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Journal Article |
Year |
1979 |
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Nature |
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282 |
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713-716 |
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from Professor Hans Klingels Equine Reference List |
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1079 |
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