| Records |
| Author |
Nelissen, M.H.J. |
| Title |
The effect of tied rank numbers on the linearity of dominance hierarchies |
Type |
Journal Article |
| Year |
1986 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
12 |
Issue |
2 |
Pages |
159-168 |
| Keywords |
dominance hierarchy, linearity, Landau's index, despotism |
| Abstract |
The occurence of tied rank numbers in dominance hierarchies is discussed, especially its effect on the linearity of the hierarchy. This linearity is measured with Landau's index, that is calculated for several hierarchies with tied ranks on one, two of three levels. Linearity is mostly affected by ties in small groups with many ties. A distinction is made between a hierarchy of individuals and hierarchical levels. The phenomenon of despotism is called an extreme case of tied ranks. It is proposed to regard hierarchies with a linearity in a continuous scale. |
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Equine Behaviour @ team @ |
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4285 |
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| Author |
Springorum B. |
| Title |
Hinweise zum Konditionstraining der Military-Pferde |
Type |
Book Whole |
| Year |
1986 |
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FN-Verlag |
Place of Publication |
Warendorf |
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3 88542 167 4 |
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no |
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Equine Behaviour @ team @ |
Serial |
4439 |
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| Author |
Cheney, D.L.; Seyfarth, R.M. |
| Title |
The recognition of social alliances among vervet monkeys |
Type |
Journal Article |
| Year |
1986 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
34 |
Issue |
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Pages |
1722-1731 |
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no |
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Equine Behaviour @ team @ |
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4864 |
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| Author |
Gittleman, J.L. |
| Title |
Carnivore Life History Patterns: Allometric, Phylogenetic, and Ecological Associations |
Type |
Journal Article |
| Year |
1986 |
Publication |
The American Naturalist |
Abbreviated Journal |
Am Nat |
| Volume |
127 |
Issue |
6 |
Pages |
744-771 |
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The University of Chicago Press for The American Society of Naturalists |
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0003-0147 |
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no |
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Equine Behaviour @ team @ |
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5453 |
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| Author |
Donner, H.D. |
| Title |
Grundausbildung für Reiter und Pferd |
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Book Whole |
| Year |
1986 |
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Ausbildung; Dressurreiten; Geländereiten; Grundausbildung; Pferd; Pferdesport; Reiten; Reitsport; Sportausrüstung; Springreiten |
| Abstract |
Verf. gibt einen Ueberblick ueber: 1) Grundausbildung des Reiters: a) Vorbedingungen fuer eine erfolgreiche Ausbildung, b) Sitz und Sitzschulung, c) Einwirkung des Reiters, d) Reiten von Grunduebungen und Dressurlektionen, e) Springausbildung, f) Gelaendereiten sowie 2) Grundausbildung des Pferdes: a) Grundkenntnisse fuer den Ausbilder ueber Charakter und Wesen des Pferdes, Grundsaetze und Erziehung, anatomisch-physiologische Voraussetzungen, b) Allgemeine Grundausbildung, c) Grundausbildung im Springen und im Gelaende, d) Arbeit mit Pferden mit Gebaeude- und Temperamentsfehlern. Schiffer |
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FN-Verl. d. Dt. Reiterlichen Vereinigung |
Place of Publication |
Warendorf |
Editor |
Donner, H.D.; Specht, D. |
| Language |
deu |
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Edition |
25. Aufl. |
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9783885421740 |
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no |
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Equine Behaviour @ team @ Pu198801031394 |
Serial |
5972 |
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| Author |
Giraldeau, L.-A.; Lefebvre, L. |
| Title |
Exchangeable producer and scrounger roles in a captive flock of feral pigeons: a case for the skill pool effect |
Type |
Journal Article |
| Year |
1986 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
| Volume |
34 |
Issue |
3 |
Pages |
797-803 |
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| Abstract |
We investigated the foraging producer-scrounger system of a captive flock of feral pigeons (Columba livia) by monitoring the number of food patches each individual produced. In one experiment, three different patch types were tested on the whole flock while, in a second, flock composition was varied for one patch type. In all cases we found non-uniform distributions of the number of patches produced per individual, which suggests the existence of producer and scrounger roles. This result could not be explained by either dominance or variability in individual learning ability. Individuals switched roles in response to changes both in food patch type and flock composition. These results are discussed in light of the skill pool hypothesis, which suggests that, in a group, different foraging specialists will profit by parasitizing each other's food discoveries. |
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0003-3472 |
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no |
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Equine Behaviour @ team @ |
Serial |
6012 |
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| Author |
Blakeman, N.E.; Friend, T.H. |
| Title |
Visual discrimination at varying distances in Spanish goats |
Type |
Journal Article |
| Year |
1986 |
Publication |
Appl Anim Behav Sci |
Abbreviated Journal |
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| Volume |
16 |
Issue |
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no |
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Equine Behaviour @ team @ Blakeman1986 |
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6251 |
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| Author |
Crowell-Davis, S.L. |
| Title |
Spatial relations between mares and foals of the Welsh pony (Equus caballus) |
Type |
Journal Article |
| Year |
1986 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim Beh |
| Volume |
34 |
Issue |
4 |
Pages |
1007-1015 |
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| Abstract |
Welsh pony mares and foals (Equus caballus) were usually found to be within 1 or 5 m of each other during the first week of the foal's life and gradually spent more time at greater distances as the foals became older. There was an overall levelling of the trend during the 9th-15th weeks of life of the foal, followed by a second period of change during weeks 16-24. Through weeks 21-24, mares and foals spent at least half of their time within 5 m of each other. Proximity was primarily due to foal activity except during foal recumbency. During the first 8 weeks of the foal's life, a mare remained close by when it was recumbent, either by grazing in a circle around it or by standing upright beside it. Mares and foals were most likely to be close together when they were resting upright with the other ponies in the herd and most likely to be far apart when the foal was playing. Similarities in patterns of spatial relationship between the foals of a given mare were demonstrated. There was no difference between colts and filies in the development of independence. |
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0003-3472 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6505 |
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| Author |
Liang, K.-Y.; Zeger, S.L. |
| Title |
Longitudinal data analysis using generalized linear models |
Type |
Journal Article |
| Year |
1986 |
Publication |
Biometrika |
Abbreviated Journal |
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| Volume |
73 |
Issue |
1 |
Pages |
13-22 |
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This paper proposes an extension of generalized linear models to the analysis of longitudinal data. We introduce a class of estimating equations that give consistent estimates of the regression parameters and of their variance under mild assumptions about the time dependence. The estimating equations are derived without specifying the joint distribution of a subject's observations yet they reduce to the score equations for niultivariate Gaussian outcomes. Asymptotic theory is presented for the general class of estimators. Specific cases in which we assume independence, m-dependence and exchangeable correlation structures from each subject are discussed. Efficiency of the pioposecl estimators in two simple situations is considered. The approach is closely related to quasi-likelihood. |
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10.1093/biomet/73.1.1 |
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no |
| Call Number |
Admin @ knut @ |
Serial |
4097 |
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| Author |
Voith, V.L. |
| Title |
Principles of learning |
Type |
Journal Article |
| Year |
1986 |
Publication |
The Veterinary clinics of North America. Equine practice |
Abbreviated Journal |
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2 |
Issue |
3 |
Pages |
485-506 |
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Cited By (since 1996): 9; Export Date: 21 October 2008 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
4547 |
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