No description available.

No description available.

The effects of mimicry on pro-social sharing were investigated among 4-year-olds. During the priming phase, the experimenter either copied the actions of the children directly or responded contingently to their actions. The effect of mimicry on sharing behavior was assessed by the children’s performance on the resource allocation task. Results indicated that mimicry did not influence sharing above and beyond a positive interaction, with low levels of sharing found in both conditions. Experiment 2 was designed to determine whether the lack of communication during the priming phase of Experiment 1 was responsible for the levels of sharing found. During the priming phase, the experimenter either spoke to the children while they played, or did not. Results indicated that communication did not influence pro-social sharing, as the levels of sharing were no higher than those found in Experiment 1. Other influencing factors such as the nature of mimicry are discussed.

No description available.

Thesis (MSc (Veterinary Science))--University of Pretoria, 2002. / Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1955. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 119-125).

Thesis (Ph. D.)--Rutgers University, 2008. / "Graduate Program in Anthropology." Includes bibliographical references (p. 132-145).

Thesis (Ph. D.)--University of Washington, 2005. / Vita. Includes bibliographical references (leaves 65-72).

There were reconstructed phylogeny of recent and fossil species of subfamily Caninae in this study. Resulting phylogeny was used for examining possible causes of cooperative behaviour in Caninae. The study tried tu explain evolution of social behavior in canids.

Eumetopias jubata is polygyncus. The sea-lions segregate during the breeding season into pupping colonies consisting of adult males and females, and non-pupping colonies consisting mainly of sub-adult males. All previous studies of the social behaviour E. jubata have been concerned only with pupping colonies. This study describes the social behaviour and organization of a non-pupping colony. The colony is located at Mclnnes Island, British Columbia (Lat. 52°16’ N., Long. 128°43’ W.). It consists of 100-150 animals. They are mainly sub-adult males though several adult sea-lions of both sexes were present. Data concerning six age-sex classes were taken using two methods. One method involved the development of an ethogram consisting of 34 behaviour patterns and the observation of social interactions. The other method involved spacial organization and activity. Qualitative notes on territorial and reproductive behaviour as well as population structure were also recorded. A peck-dominance hierarchy exists between the classes and is related to many of the behaviours measured. Males are more socially involved than females. This is more voluntary for males than it is for females. As males mature their behaviour becomes more complex than that of females. Females are not aggressive. This is reflected by their lack of Body Contact behaviour. Males are aggressive towards other males and use more Body Contact behaviour than females. Body Contact behaviour is mainly physical aggressive interaction. As males mature it is replaced with Non-body Contact behaviour which is largely threats and displays. The intense social conditioning of sub-adult males results in more socially adept adults that are better able to cope with the complex society at pupping colonies. Sub-adult males are not territorial. However, some adult males are. This is related to the presence of females. Territories act as refuges for females who avoid areas of activity and harassment by sexually mature sub-adult males. This contributes to the grouping of females around territorial adult males. Non-pupping colonies are spatially organized similar to pupping colonies except for the relative proportion of age-sex classes. Socially, non-pupping colonies are less organized than pupping colonies. Social organization in E. jubata is promoted by the tranquil behaviour of adults and inhibited by the disruptive behaviour of sub-adult males. / Science, Faculty of / Zoology, Department of / Graduate