Les Relations Sociales Chez Le Cobaye Domestique MaleI. Etude De La Hierarchie Sociale

Coulon, JM

doi:10.1163/156853975x00182

Cited by 20 publications

(10 citation statements)

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“…Such territorial behaviour refers mainly to males. Also, in larger breeding colonies of guinea pigs, the most obvious characteristic of the social structure is a dominance order between males (Rood 1972, Coulon 1975, a long lasting malefemale association and spatial preferences (Sachser andHendrichs 1982, Sachser 1986) whereas the results obtained in this study showed no significant differences between the sexes.…”

Section: Discussioncontrasting

confidence: 62%

Social influences on the orcadian rhythm of locomotor activity and food intake of guinea pigs

Büttner

1992

Journal of Interdisiplinary Cycle Research

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Locomotor activity (LA) and food intake (FI) were recorded in 12 adult male and 8 female guinea pigs of the inbred strain 2 kept initially under social conditions and later separated. The groups consisted of two, and in one case, of 4 animals. Some animals were regrouped again after separation. In addition, four individual and 4 grouped animals were kept in continuous darkness (DD).The day-night ratio, the averaged daily patterns and the chi-square periodogram showed significant differences between the grouped and separated animals as well as the overall amount of LA and FI. Grouped animals displayed 37% of their LA during the light, decreasing to 7% during separation. FT showed lower day-night differences than LA overall and smaller differences between grouping and separation (FI during light in grouped: x = 48%, separated: x = 31%). Both patterns were relatively consistent for each housing condition. Under the conditions of DD, regular circadian rhythms with period lengths of less then 24 hours were established, but the patterns seen were different from those under LD. Separated animals showed a more or less bimodal and grouped animals trimodal patterns, both resulting in ultradian components of about 7h 45min.The results are discussed in terms of a masking by light, being most effective in individually kept animals in the present physical environment. This can be explained by the guinea pig's simultaneous needs for retreat and close social contact.

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Section: Discussioncontrasting

confidence: 62%

Social influences on the orcadian rhythm of locomotor activity and food intake of guinea pigs

Büttner

1992

Journal of Interdisiplinary Cycle Research

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“…Following COULON (1975) rank indices were calculated in addition from the behavior frequencies of "retreat" as the ratio Ag+ Ag+ + Ag-(Ag+ is the total number of "retreat" which occurred in reaction towards a specific female, Agthe amount of the same behavior shown by this female). Following COULON (1975) rank indices were calculated in addition from the behavior frequencies of "retreat" as the ratio Ag+ Ag+ + Ag-(Ag+ is the total number of "retreat" which occurred in reaction towards a specific female, Agthe amount of the same behavior shown by this female).…”

Section: Discussionmentioning

confidence: 99%

“…For adult male domestic guinea pigs belonging to the same group a stable dominance order (ROOD 1972;COULON 1975;BERRYMAN 1978) as well as long-lasting male-female associations and spatial preferences (JACOBS 1976;SACHSER & HENDRICHS 1982;SACHSER 1986) have been described as characteristical structural elements. For adult male domestic guinea pigs belonging to the same group a stable dominance order (ROOD 1972;COULON 1975;BERRYMAN 1978) as well as long-lasting male-female associations and spatial preferences (JACOBS 1976;SACHSER & HENDRICHS 1982;SACHSER 1986) have been described as characteristical structural elements.…”

Section: Introductionmentioning

confidence: 99%

Differences in Behavior and Social Organization of Female Guinea Pigs as a Function of the Presence of a Male

Thyen

Hendrichs

1990

Ethology

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Object of the study was the variability of social behavior and organization in female guinea pigs as a function of the presence of a male. Four groups of 8 females were observed. Two of these groups were without a male, the other two had a sexually experienced, sterilized male. All females were about 20 d old at the beginning of the study. In the groups without a male the females formed clear and stable dominance relationships resulting in a linear rank order. The frequency of agonistic behavior was higher compared to the other groups. Some of these females displayed male‐like courtship behavior. Among the females in the groups with a male only the alpha and omega positions were stable, while the dominance relations between the other females remained unstable. These females directed about 40–50 % of their contact behavior towards the male. In relation to the presence or absence of a male the females differed in their social orientation: those who lived with a male were strongly orientated towards it, those living without a male were strongly oriented towards each other. The hypothesis is put forward, that the females in the two situations differed in their motivational states. For the females living with a male this animal was a stable point of social reference, while for the females living without a male their stable dominance structure — with more agonistic behavior — was the most important stabilizing factor.

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“…Hence, the Coulon Index of each experimental animal from each colony was calculated to compare dominance across colonies. This widely used index is defined as the number of won agonistic interactions divided by the number of all agonistic interactions in which the subject was involved (Coulon ). In guinea pigs, the most reliable indicator to determine whether an agonistic interaction is won by the focal animal is the retreat of the opponent in an agonistic encounter.…”

Section: Animals Materials and Methodsmentioning

confidence: 99%

Dimensions of Animal Personalities in Guinea Pigs

2013

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Behavioural phenotypes can be studied from a variety of perspectives. Recent developments have focused on the individual, seeking patterns of behaviour that are stable over time and/or across different contexts (animal personalities). This study applied this method of understanding individual behavioural variability to domestic guinea pigs. Two behavioural domains were investigated: emotionality and social behaviour. Additionally, individual cortisol-stress reactivity and dominance status were examined. Adult male domestic guinea pigs living in large mixed-sex colonies were subjected to a series of behavioural and physiological tests twice with an intertest interval of 8 wk. Individual consistency over time was found regarding social behaviour, cortisol reactivity and dominance status, whereas no stability regarding emotional behaviour was detected. Furthermore, no stability over contexts was found. Our results suggest that the concept of animal personality is applicable to domestic guinea pigs. The ecological relevance of these data is underscored by the fact that they were obtained in animals from a very rich, socially complex scenario. Moreover, our study highlights that behaviour alone is not sufficient to describe individual phenotypic consistency. Physiological parameters such as stress reactivity should be included in animal personality research. Furthermore dominance -a relative measure which is not an absolute attribute of individuals -proved to be stable over time and thus also shed light on individuality.

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Les Relations Sociales Chez Le Cobaye Domestique MaleI. Etude De La Hierarchie Sociale

Cited by 20 publications

References 0 publications

Social influences on the orcadian rhythm of locomotor activity and food intake of guinea pigs

Social influences on the orcadian rhythm of locomotor activity and food intake of guinea pigs

Differences in Behavior and Social Organization of Female Guinea Pigs as a Function of the Presence of a Male

Dimensions of Animal Personalities in Guinea Pigs

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