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Author |
Stoddart, D.M. |
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Title |
The ecology of vertebrate olfaction |
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Year |
1980 |
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Chapman and Hall |
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London; New York |
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0412218208 9780412218200 |
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Call Number |
Equine Behaviour @ team @ 6770946 |
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4367 |
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Author |
Karstens, H. |
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Title |
Das Military Pferd |
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1980 |
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Haberbeck |
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Lage |
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German |
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Equine Behaviour @ team @ |
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4436 |
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Author |
Brügger, A. |
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Title |
Die Erkrankungen des Bewegungsapparates und seines Nervensystems. |
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1980 |
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Gustav Fischer |
Place of Publication |
Stuttgart |
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3437105051 |
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Equine Behaviour @ team @ |
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4440 |
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Author |
Brügger, A. |
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Title |
Gesunde Körperhaltung im Alltag |
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1980 |
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Dr. A. Brügger |
Place of Publication |
Zürich |
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Equine Behaviour @ team @ |
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4451 |
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Author |
Appleby, M.C. |
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Title |
Social Rank and Food Access in Red Deer Stags |
Type |
Journal Article |
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Year |
1980 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
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Volume |
74 |
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Pages |
294-309 |
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Abstract |
The behaviour of a free-living group of male red deer (Cervus elaphus L.) on the Isle of Rhum, Scotland, was studied throughout the year to investigate the relations between social dominance and food access. The study is based on the collection of agonistic interactions between members of the study group outside the rutting season. Analysis of these confirmed that dyadic dominance relationships summate to a very clear agonistic hierarchy, while seasonal changes in frequency and type of interactions suggested that rank in the hierarchy may affect access to food through direct feeding interference. This would constitute a selective advantage of the acquisition of high rank. A behaviour pattern in which a stag displaces a subordinate and takes over his feeding-site is proposed as a mechanism of direct feeding interference. It occurs throughout the year, but with a frequency closely related to changes in food availability and quality. The proportion of such interactions that an individual wins is related to his rank, so advantages gained from this behaviour would primarily benefit high-ranking stags. These are likely to consist of improved body condition and winter survival. The importance of high rank in obtaining access to limited food was supported by the results of a simple experiment providing a small area of fertilized grass. Most of the grazing in the area was due to the highest-ranking stag present at any time. |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4860 |
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Author |
Harvey, P.H.; Clutton-Brock, T.H.; Mace, G.M. |
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Title |
Brain size and ecology in small mammals and primates |
Type |
Journal Article |
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Year |
1980 |
Publication |
Proceedings of the National Academy of Sciences |
Abbreviated Journal |
PNAS |
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Volume |
77 |
Issue |
7 |
Pages |
4387-4389 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5456 |
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Author |
Frank, H. |
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Title |
Evolution of canine information processing under conditions of natural and artificial selection |
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Journal Article |
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Year |
1980 |
Publication |
Z Tierpsychol |
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Volume |
5 |
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Call Number |
Equine Behaviour @ team @ Frank1980 |
Serial |
6243 |
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Author |
Beck, B. B. |
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Title |
Animal tool behaviour: The use and manufacture of tools by animals |
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Book Whole |
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Year |
1980 |
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Garland |
Place of Publication |
New York |
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Equine Behaviour @ team @ |
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6524 |
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Author |
Hasumi, H. |
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Title |
Kinetic studies on isomerization of ferricytochrome c in alkaline and acid pH ranges by the circular dichroism stopped-flow method |
Type |
Journal Article |
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Year |
1980 |
Publication |
Biochimica et Biophysica Acta |
Abbreviated Journal |
Biochim Biophys Acta |
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Volume |
626 |
Issue |
2 |
Pages |
265-276 |
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Keywords |
Circular Dichroism; *Cytochrome c Group; Hydrogen-Ion Concentration; Isomerism; Kinetics; Spectrophotometry |
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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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Call Number |
refbase @ user @ |
Serial |
3876 |
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Author |
Noë, R.; de Waal, F.B.; van Hooff, J.A. |
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Title |
Types of dominance in a chimpanzee colony |
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Journal Article |
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Year |
1980 |
Publication |
Folia primatologica; international journal of primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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Volume |
34 |
Issue |
1-2 |
Pages |
90-110 |
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Keywords |
Agonistic Behavior; Animals; Animals, Zoo; *Behavior, Animal; Competitive Behavior; Factor Analysis, Statistical; Female; Hierarchy, Social; Male; *Pan troglodytes; *Social Dominance |
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Abstract |
This study examines to what extent the concept of dominance can be used to describe the social structure of a group of semi-free-living chimpanzees. 15 behavioural variables, based on agonistic, competitive and affinitive behaviour patterns, have been compared with respect to the interindividual directions in which they occurred. In this analysis use was made of indices that reflect the position an individual occupies in the relationship structure. These indices were calculated per individual for all variables and subjected to factor analysis and cluster analysis. As a result, 13 of the variables could be grouped in three categories which have been labelled: (1) agonistic dominance; (2) bluff dominance, and (3) competitive dominance. Whereas the top positions in the hierarchies based on the first two closely related types of dominance were occupied by the adult males, the hierarchy based on the third type was headed by several adult females. |
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English |
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0015-5713 |
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Notes |
PMID:7439873 |
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Call Number |
refbase @ user @ |
Serial |
212 |
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