Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:…for multivariate analyses and experimental manipulations
Within groups of A. percula, the size of the largest individual influences group size (Buston 2003b), group size correlates with anemone size (Fautin 1992), and anemone size correlates with the size of the largest individual (Fautin…
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