| Records |
Author  |
Clutton-Brock, T.H.; Harvey, P.H. |
| Title |
Primates, brains and ecology |
Type |
Journal Article |
| Year |
1980 |
Publication |
Journal of Zoology |
Abbreviated Journal |
J. Zool. Lond. |
| Volume |
190 |
Issue |
3 |
Pages |
309-323 |
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| Abstract |
The paper examines systematic relationships among primates between brain size (relative to body size) and differences in ecology and social system. Marked differences in relative brain size exist between families. These are correlated with inter-family differences in body size and home range size. Variation in comparative brain size within families is related to diet (folivores have comparatively smaller brains than frugivores), home range size and possibly also to breeding system. The adaptive significance of these relationships is discussed. |
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Blackwell Publishing Ltd |
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| ISSN |
1469-7998 |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5451 |
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| Author |
CREGIER SE |
| Title |
Alleviating road transit stress on horses. |
Type |
Journal Article |
| Year |
1980 |
Publication |
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Abbreviated Journal |
Anim Regul Stud |
| Volume |
3 |
Issue |
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Pages |
223-227 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
996 |
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| Author |
De Moraes Ferrari,E. A.; Todorov, J. C. |
| Title |
Concurrent avoidance of shocks by pigeons pecking a key |
Type |
Journal Article |
| Year |
1980 |
Publication |
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Abbreviated Journal |
J Exp Anal Behav. |
| Volume |
30 |
Issue |
3 |
Pages |
329-333 |
| Keywords |
concurrent schedules, unsignaled avoidance, negative reinforcement, key pecking, pigeon |
| Abstract |
Three pigeons were studied on concurrent, unsignaled, avoidance schedules in a two-key procedure. Shock-shock intervals were two seconds in both schedules. The response-shock interval on one key was always 22 seconds, while the response-shock interval associated with the other key was varied from 7 to 52 seconds in different experimental conditions. Response rates on the key associated with the varied schedule tended to decrease when the response-shock interval length was increased. Responding on the key associated with the constant schedule was not systematically affected. |
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no |
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Equine Behaviour @ team @ |
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3586 |
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| Author |
DOREAU M et al, |
| Title |
Activités alimentaires nocturnes du cheval au pâturage |
Type |
Journal Article |
| Year |
1980 |
Publication |
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Abbreviated Journal |
Ann Zootech |
| Volume |
29 |
Issue |
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Pages |
299-304 |
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from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1022 |
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| Author |
DREVEMO S et al, |
| Title |
Equine locomotion: The analysis of linear and temporal stride characteristics of trotting standardbreds |
Type |
Journal Article |
| Year |
1980 |
Publication |
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Abbreviated Journal |
Equine Vet J |
| Volume |
12 |
Issue |
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Pages |
60-65 |
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from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1025 |
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| Author |
Duncan P, C.P. |
| Title |
An unusual choice of habitat helps Camargue horses to avoid blood-sucking horse-flies |
Type |
Journal Article |
| Year |
1980 |
Publication |
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Abbreviated Journal |
Biol Behav |
| Volume |
5 |
Issue |
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Pages |
55-60 |
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from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1036 |
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| Author |
Frank, H. |
| Title |
Evolution of canine information processing under conditions of natural and artificial selection |
Type |
Journal Article |
| Year |
1980 |
Publication |
Z Tierpsychol |
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5 |
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no |
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Equine Behaviour @ team @ Frank1980 |
Serial |
6243 |
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| Author |
Haag, E.L.; Rudman, R.; Houpt, K.A. |
| Title |
Avoidance, maze learning and social dominance in ponies |
Type |
Journal Article |
| Year |
1980 |
Publication |
J. Anim. Sci. |
Abbreviated Journal |
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| Volume |
50 |
Issue |
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Pages |
329-335 |
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Cited By (since 1996): 16; Export Date: 24 October 2008 |
Approved |
no |
| Call Number |
Admin @ knut @ |
Serial |
4593 |
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| Author |
Harvey, P.H.; Clutton-Brock, T.H.; Mace, G.M. |
| Title |
Brain size and ecology in small mammals and primates |
Type |
Journal Article |
| Year |
1980 |
Publication |
Proceedings of the National Academy of Sciences |
Abbreviated Journal |
PNAS |
| Volume |
77 |
Issue |
7 |
Pages |
4387-4389 |
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no |
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Equine Behaviour @ team @ |
Serial |
5456 |
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| Author |
Hasumi, H. |
| Title |
Kinetic studies on isomerization of ferricytochrome c in alkaline and acid pH ranges by the circular dichroism stopped-flow method |
Type |
Journal Article |
| Year |
1980 |
Publication |
Biochimica et Biophysica Acta |
Abbreviated Journal |
Biochim Biophys Acta |
| Volume |
626 |
Issue |
2 |
Pages |
265-276 |
| Keywords |
Circular Dichroism; *Cytochrome c Group; Hydrogen-Ion Concentration; Isomerism; Kinetics; Spectrophotometry |
| Abstract |
The isomerization of horse-heart ferricytochrome c caused by varying pH was kinetically studied by using circular dichroism (CD) and optical absorption stopped-flow techniques. In the pH range of 7--13, the existence of the three different forms of ferricytochrome c (pH less than 10, pH 10--12, and pH greater than 12) was indicated from the statistical difference CD spectra. On the basis of analyses of the stopped-flow traces in the near-ultraviolet and Soret wavelength regions, the isomerization of ferricytochrome c from neutral form to the above three alkaline forms was interpreted as follows (1) below pH 10, the replacement of the intrinsic ligand of methionine residue by lysine residue occurs; (2) between pH 10 and 12, the uncoupling of the polypeptide chain from close proximity of the heme group occurs first, followed by the interconversion of the intrinsic ligands; and (3) above pH 12, hydroxide form of ferricytochrome c is formed, though the replacement of the intrinsic ligand by extrinsic ligands may occur via different routes from those below pH 12. The CD changes at 288 nm and in the Soret region caused by the pH-jump (down) from pH 6.0 to 1.6 were compared with the appearance of the 620-nm absorption band ascribed to the formation of the high-spin form of ferricytochrome c. Both CD and absorption changes indicated that the isomerization at pH 1.6 consisted of two processes: one proceeded within the dead-time (about 2 ms) of the stopped-flow apparatus and the other proceeded at a determinable rate with the apparatus. On the basis of these results, the isomerization of ferricytochrome c at pH 1.6 was explained as follows: (1) the transition from the low-spin form to the high-spin forms occurs within about 2 ms, the dead-time of the stopped-flow apparatus; and (2) the polypeptide chain is unfolded after the formation of the high-spin form. |
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English |
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0006-3002 |
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| Notes |
PMID:6260152 |
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no |
| Call Number |
refbase @ user @ |
Serial |
3876 |
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