| Records |
Author  |
Appleby, M. |
| Title |
Consciousness, Cognition and Animal Welfare: J.K. Kirkwood, R.C. Hubrecht, S. Wickens, H. O'Leary, S. Oakley (Eds.), Universities Federation for Animal Welfare, 2001, 251 pp., Paperback, Supplement to Volume 10 of Animal Welfare, [pound sign]15/US$ 30, ISSN 0962-7286 |
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Journal Article |
| Year |
2002 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
77 |
Issue |
3 |
Pages |
239-241 |
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Equine Behaviour @ team @ |
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2905 |
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| Author |
Appleby, M.C. |
| Title |
The probability of linearity in hierarchies |
Type |
Journal Article |
| Year |
1983 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
31 |
Issue |
2 |
Pages |
600-608 |
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The common practice of ranking a group of animals in the closest possible order to a linear dominance hierarchy assumes that dominance among those animals is generally transitive. In fact, analysis of groups in which dominance relationships are random shows that this method has a surprisingly high probability of producing an apparently linear or near-linear hierarchy by chance. As such, the existence of transitive dominance should be tested before it is used in ranking. A suitable statistical test is described here. Chance may also contribute to the linear appearance of hierarchies based on other factors. |
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Equine Behaviour @ team @ |
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4286 |
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Appleby, M.C. |
| Title |
Social Rank and Food Access in Red Deer Stags |
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Journal Article |
| Year |
1980 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
| Volume |
74 |
Issue |
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Pages |
294-309 |
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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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Equine Behaviour @ team @ |
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4860 |
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| Author |
De Vries, H.; Appleby, M.C. |
| Title |
Finding an appropriate order for a hierarchy: a comparison of the I&SI and the BBS methods |
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Journal Article |
| Year |
2000 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
59 |
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1 |
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239-245 |
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refbase @ user @ |
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869 |
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| Author |
Jameson, K.A.; Appleby, M.C.; Freeman, L.C. |
| Title |
Finding an appropriate order for a hierarchy based on probabilistic dominance |
Type |
Journal Article |
| Year |
1999 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
57 |
Issue |
5 |
Pages |
991-998 |
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Methods of ranking individuals in a dominance hierarchy that use transitivity of relationships may obscure irregularities. Furthermore, these methods use only a small proportion of the information available from dominance encounters. This paper presents an intuitively appealing and easily implemented alternative to existing methods for ordering dominance data, developed from the work of Batchelder et al. (1992Journal of Mathematical Psychology36, 185-212). The procedure presented here is based on a mathematical model of paired comparisons and it involves only simple estimation procedures. We illustrate its use with data on dominance among red deerCervus elaphus, stags. The results indicate that dominance relationships are well characterized by the scale values that the model provides, and, because the method provides predictions for all pairings of animals, dominance predictions also exist for pairs of animals that have yet to be observed. Moreover, the dominance outcomes predicted by the model using the order scale are highly correlated with actual dominance observations at all levels. Overall, the procedure described provides a solution to the problem of identifying an appropriate order for a near-linear dominance hierarchy. |
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refbase @ user @ |
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452 |
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Smith, S.F.; Appleby, M.C.; Hughes, B.O. |
| Title |
Problem solving by domestic hens: opening doors to reach nest sites |
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Journal Article |
| Year |
1990 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
28 |
Issue |
3 |
Pages |
287-292 |
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In a trial of cage designs for laying hens, eggs were discovered in dust baths where access was restricted by a closed door during the normal laying period (08:00-13:00 h). Observations showed that the hens in these dust bath treatments had developed methods of opening the doors in order to lay in the baths. Three different methods of opening were observed. An average time of 34.4 min was spent attempting to open the doors before access was finally achieved. This implies a strong nesting motivation in these hens. The proportion of eggs laid in the dust baths increased (with occasional fluctuations) over a 24-week period. Door opening is likely to have initially developed in one individual in each cage through a trial and error basis, and then have been learned by cage mates through imitation. The speed and efficiency of door opening was not found to increase with experience or time. |
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0168-1591 |
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Equine Behaviour @ team @ |
Serial |
6164 |
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