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Data reduction analyses of animal behaviour: avoiding Kaiser’s criterion and adopting more robust automated methods (2019)
Journal Article
Blake Morton, F., & Altschul, D. (2019). Data reduction analyses of animal behaviour: avoiding Kaiser’s criterion and adopting more robust automated methods. Animal behaviour, 149, 89-95. doi:10.1016/j.anbehav.2019.01.003

Data reduction analyses such as principal components and exploratory factor analyses identify relationships within a set of potentially correlated variables, and cluster correlated variables into a smaller overall quantity of groupings. Because of th... Read More

Divergent personality structures of brown (Sapajus apella) and white-faced capuchins (Cebus capucinus). (2016)
Journal Article
Robinson, L. M., Morton, F. B., Gartner, M. C., Widness, J., Paukner, A., Essler, J. L., …Weiss, A. (2016). Divergent personality structures of brown (Sapajus apella) and white-faced capuchins (Cebus capucinus). Journal of Comparative Psychology, 130(4), 305-312. https://doi.org/10.1037/com0000037

One way to gain insights into personality evolution is by comparing the personality structures of related species. We compared the personality structure of 240 wild white-faced capuchin monkeys to the personality structure of 100 captive brown capuch... Read More

Capuchin monkeys with similar personalities have higher-quality relationships independent of age, sex, kinship and rank (2015)
Journal Article
Morton, F. B., Weiss, A., Buchanan-Smith, H. M., & Lee, P. C. (2015). Capuchin monkeys with similar personalities have higher-quality relationships independent of age, sex, kinship and rank. Animal behaviour, 105, 163-171. https://doi.org/10.1016/j.anbehav.2015.04.013

Social relationships vary in content, quality and patterning. Most researchers focus on whether and how nondispositional factors, including age, sex, kinship and rank, predict variance in the content, quality and patterning of relationships. However,... Read More

Using the relational event model (REM) to investigate the temporal dynamics of animal social networks (2015)
Journal Article
Tranmer, M., Marcum, C. S., Morton, F. B., Croft, D. P., & de Kort, S. R. (2015). Using the relational event model (REM) to investigate the temporal dynamics of animal social networks. Animal behaviour, 101, 99-105. https://doi.org/10.1016/j.anbehav.2014.12.005

Social dynamics are of fundamental importance in animal societies. Studies on nonhuman animal social systems often aggregate social interaction event data into a single network within a particular time frame. Analysis of the resulting network can pro... Read More

Facial Width-To-Height Ratio Relates to Alpha Status and Assertive Personality in Capuchin Monkeys (2014)
Journal Article
Lefevre, C. E., Wilson, V. A. D., Morton, F. B., Brosnan, S. F., Paukner, A., & Bates, T. C. (2014). Facial Width-To-Height Ratio Relates to Alpha Status and Assertive Personality in Capuchin Monkeys. PloS one, 9(4), https://doi.org/10.1371/journal.pone.0093369

Social dominance hierarchies play a pivotal role in shaping the behaviour of many species, and sex differences within these hierarchies often exist. To date, however, few physical markers of dominance have been identified. Such markers would be valua... Read More