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:This diversity pattern is comparable to those reported for other Rhizophora species from different areas along the Atlantic and Pacific coasts (Cerón-Souza et al., 2012; Sandoval-Castro et al., 2014; Yahya et al., 2014; Ng et al., 2015; Wee et al., 2015).
Category: