|
Clutton-Brock, T. H., Albon, S. D., Gibson, R. M., & Guinness, F. E. (1979). The logical stag: Adaptive aspects of fighting in red deer (Cervus elaphus L.). Anim. Behav., 27(Part 1), 211–225.
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.
|
|
|
Denniston, R. H. (1979). The varying role of the male in feral horses. Symp Ecol and Behav of wild and feral Equids, Laramie,, , 93–98.
|
|
|
Fedak Ma, S. H. (1979). Reappraisal of energetics of locomotion shows identical cost in bipeds and quadrupeds including ostrich and horse. Nature, 282, 713–716.
|
|
|
Miller, R., & Denniston, R. H. (1979). Interband dominance in feral horses. Z. Tierpsychol., 51, 41–47.
|
|
|
Potter Rl, H. R. (1979). Feral burro food habits and habitat relations, Grand Canyon National Park, Arizona. Symposium on the Ecology and Behavior of wild and feral Equids, Laramie, , 143–157.
|
|
|
Ribeiro, H. S., Larangeira, N. L., & Paiva, F. (1979). [Prevalence of Dictyocaulus arnfieldi (Cobbald, 1884) Railiet & Henry 1907, in Pantaneira breed horses of the region of Pocone, MT]. Arq Inst Biol (Sao Paulo), 46(3-4), 107–110.
Abstract: The authors sacrificed fifty-five horses originated from the “Pantanal”, lowlands in the State of Mato Grosso in two different periods, droughty period and flooded and they described for the first time the Dictyocaulus arnfieldi in Mato Grosso. Relationship between droughty and flooded periods proved not to occur.
|
|
|
Czerlinski, G. H., Erickson, J. O., & Theorell, H. (1979). Chemical relaxation studies on the horse liver alcohol dehydrogenase system. Physiol Chem Phys, 11(6), 537–569.
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.
|
|
|
Harrington, F. H., & Mech, L. D. (1979). Wolf howling and its role in territory maintenance. Behaviour, 68.
|
|
|
Lloyd Ph, H. D. (1980). A case of adaptation and rejection of foals in Cape Mountain Zebra. S Afr Wildl Res, 10, 61–62.
|
|
|
Salter Re, H. J. (1980). Range relationships of feral horses with wild ungulates and cattle in western Alberta. J Range Mgmt, 33, 266–271.
|
|