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Students can visit the College Archives (Calvert 009-ground floor) to read or view past St. Mary's Projects Mondays and Thursdays from 8 a.m. to 4 p.m. (appointments recommended).

Access to a full SMP can depend on how a student completed a release form, but most SMPs can be read or viewed in the College Archives without restriction.

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Hope Lobkowicz

Lobkowicz, H. (2005, May). Aggression, affiliation, and vocalization patterns in the California sea lion, Zalphus californianus.
Mentor: Dr. Aileen Bailey

Abstract

The California sea lion is a species which lives in large colonies, resulting in a complex social structure which can be characterized by the animal's social affiliation as well as stereotypical and hierarchical aggression. The purpose of the present study was to identify and examine several behaviors within the two behavioral categories of affiliation and aggression while additionally examining when vocalizations occur across these categories. Data was collected over a period of 13 days through behavior sampling and instantaneous scans of a sample in their natural environment. Results showed that the sea lions vocalized significantly more during a social interaction than during non-social behavior. When social interactions were categorized, results showed that vocalizations occurred significantly more often during aggressive behavior than affiliative behavior and significantly more often during neutral behaviors than affiliative behavior, but there was no significant difference between vocalizations during affiliative and neutral behaviors. Lastly, it was found that the sea lions engaged in significantly more physical contact during affiliative behavior than during aggressive behavior. Findings of this study were consistent with previous research on the topics but invite more investigation in several behavioral aspects of the species.


Read the paper (download the pdf)