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| Author |
Dingemanse, N.J.; Both, C.; Drent, P.J.; van Oers, K.; van Noordwijk, A.J. |
| Title |
Repeatability and heritability of exploratory behaviour in great tits from the wild |
Type |
Journal Article |
| Year |
2002 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
| Volume |
64 |
Issue |
6 |
Pages  |
929-938 |
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| Abstract |
We investigated whether individual great tits, Parus major, vary consistently in their exploratory behaviour in a novel environment and measured the repeatability and heritability of this trait. Wild birds were caught in their natural habitat, tested in the laboratory in an open field test on the following morning, then released at the capture site. We measured individual consistency of exploratory behaviour for recaptured individuals (repeatability) and estimated the heritability with parent-offspring regressions and sibling analyses. Measures of exploratory behaviour of individuals at repeated captures were consistent in both sexes and study areas (repeatabilities ranged from 0.27 to 0.48). Exploration scores did not differ between the sexes, and were unrelated to age, condition at fledging or condition during measurement. Heritability estimates were 0.22-0.41 (parent-offspring regressions) and 0.37-0.40 (sibling analyses). We conclude that (1) consistent individual variation in open field behaviour exists in individuals from the wild, and (2) this behavioural variation is heritable. This is one of the first studies showing heritable variation in a behavioural trait in animals from the wild, and poses the question of how this variation is maintained under natural conditions. Copyright 2002 The Association for the Study of Animal Behaviour. Published by Elsevier Science Ltd. All rights reserved. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5389 |
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| Author |
Coleman, K.; Wilson, D.S. |
| Title |
Shyness and boldness in pumpkinseed sunfish: individual differences are context-specific |
Type |
Journal Article |
| Year |
1998 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
56 |
Issue |
4 |
Pages |
927-936 |
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| Abstract |
Natural selection often promotes a mix of behavioural phenotypes in a population. Adaptive variation in the propensity to take risks might explain individual differences in shyness and boldness in humans and other species. It is often implicitly assumed that shyness and boldness are general personality traits expressed across many situations. From the evolutionary standpoint, however, individual differences that are adaptive in one context (e.g. predator defence) may not be adaptive in other contexts (e.g. exploration of the physical environment or intraspecific social interactions). We measured the context specificity of shyness and boldness in a natural population of juvenile pumpkinseed sunfish,Lepomis gibbosus, by exposing the fish to a potentially threatening stimulus (a red-tipped metrestick extended towards the individual) and a nonthreatening stimulus (a novel food source). We also related these measures of shyness and boldness to behaviours observed during focal observations, both before and after the introduction of a predator (largemouth bass,Micropterus salmoides). Consistent individual differences were found within both contexts, but individual differences did not correlate across contexts. Furthermore, fish that were scored as intermediate in their response to the metrestick behaved most boldly as foragers and in response to the bass predators. These results suggest that shyness and boldness are context-specific and may not exist as a one-dimensional behavioural continuum even within a single context. |
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2094 |
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Kacelnik, A. |
| Title |
Information primacy or preference for familiar foraging techniques? A critique of Inglis & Ferguson |
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Journal Article |
| Year |
1987 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
35 |
Issue |
3 |
Pages |
925-926 |
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2121 |
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Janson, C.H. |
| Title |
Ecological consequences of individual spatial choice in foraging groups of brown capuchin monkeys, Cebus apella |
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Journal Article |
| Year |
1990 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
40 |
Issue |
5 |
Pages |
922-934 |
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Individuals in a foraging group of brown capuchin monkeys choose different spatial positions relative to the rest of the group. An individual's choice of spatial positiion affects its foraging success and perceived predation risk (as measured by vigilance behaviour). The two most dominant group members preferred to forage where their expected forwaging success was greatest. Juveniles chose to forage where their perceived predation risk was least, not where they would achieve the highest foraging success. The positions used by non-dominant adults neither maximized foraging success nor minimized predation risk. It is likely that subordinate adults accept spatial positions with suboptimal ecological consequences to avoid the costs of frequent confrontations with the dominant members of the group over foraging sites in poreferred positions. |
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refbase @ user @ |
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774 |
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Syme, G.J.; Syme, L.A. |
| Title |
The concept of spatial leadership in farm animals: An experiment with sheep |
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Journal Article |
| Year |
1975 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
23 |
Issue |
Part 4 |
Pages |
921-925 |
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The concept of spatial leadership as applied to farm animals is discussed with particular emphasis on methodological problems. Using three experimental procedures forced spatial leadership orders were measured in a group of Romney ewes. Comparisons between orders showed the effects of both the different experimental tasks and the social context on leadership structure. Both these variables were found to affect the orders obtained. The results are interpreted in terms of the utility of the concept of spatial leadership in domestic animals and the necessity for more systematic procedural investigations in this area. |
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2039 |
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Richards, S.M. |
| Title |
The concept of dominance and methods of assessment |
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Journal Article |
| Year |
1974 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
22 |
Issue |
Part 4 |
Pages |
914-930 |
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The arrangement of a social group of individuals into a dominance hierarchy is useful in studies of social behaviour only if a wide variety of social interactions can then be predicted. However, definitions of dominance commonly used are numerous and confused. To assess the usefulness of the concept of dominance, studies were made on six breeding groups of rhesus macaques (Macaca mulata) to determine whether different measures of dominance agreed with each other. The measures tested in this study were found to agree. It is therefore suggested that dominance is a useful intervening variable. Possible reasons for the reported lack of correlation between some measures used by other authors are discussed. |
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2154 |
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Neumann, C.; Duboscq, J.; Dubuc, C.; Ginting, A.; Irwan, A.M.; Agil, M.; Widdig, A.; Engelhardt, A. |
| Title |
Assessing dominance hierarchies: validation and advantages of progressive evaluation with Elo-rating |
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Journal Article |
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2011 |
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Animal Behaviour |
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82 |
Issue |
4 |
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911-921 |
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David’s score; dominance hierarchy; dominance rank; Elo-rating; hierarchy stability; I&Si; Macaca mulatta; Macaca nigra; methodology |
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Equine Behaviour @ team @ |
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5677 |
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| Author |
Janson, C.H. |
| Title |
Social correlates of individual spatial choice in foraging groups of brown capuchin monkeys, Cebus apella |
Type |
Journal Article |
| Year |
1990 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
40 |
Issue |
5 |
Pages |
910-921 |
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Individuals in a foraging group of wild bronwn capuchin monkeys choose different spatial positions relative to the rest of the group. Markov analysis of sequencess of individual spatial positions demonstrated significant differnces between individuals, which coul be categorized a posteriori into four homogenous subgroups. An individual's spatial position was related primarily to the amount of aggression it received from the group's dominant male, but also varied with its sex. Spatial choice varied with changes in an individual's social status, but did not vary consistently with seasonal differences in food availability. These results support the hypothesis that individuals compete for preferred spatial positions within a foraging group. |
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refbase @ user @ |
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773 |
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Wittemyer, G.; Getz, W.M. |
| Title |
A likely ranking interpolation for resolving dominance orders in systems with unknown relationships |
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Journal Article |
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2006 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
| Volume |
143 |
Issue |
7 |
Pages |
909-930 |
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DOMINANCE HIERARCHY; ALGORITH; SOCIAL AGONISTIC INTERACTIONS |
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n many animal systems agonistic interactions may be rare or not overt, particularly where such interactions are costly or of high risk as is common for large mammals. We present a technique developed specifically for resolving an optimized dominance order of individuals in systems with transitive (i.e. linear) dominance relationships, but where not all relationships are known. Our method augments the widely used I&SI method (de Vries, 1998) with an interpolation function for resolving the relative ranks of individuals with unknown relationships. Our method offers several advantages over other dominance methods by enabling the incorporation of any proportion of unknown relationships, resolving a unique solution to any dominance matrix, and calculating cardinal dominance strengths for each individual. As such, this method enables novel insight into difficult to study behavioural systems. |
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English |
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refbase @ user @ |
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438 |
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Heyes CM |
| Title |
Reflections on self-recognition in primates |
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Journal Article |
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1994 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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47 |
Issue |
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909 |
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Equine Behaviour @ team @ |
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3005 |
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