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:…primate conservation and further support the proposal to restore the Mngeta conservation corridor between US and Iyondo forest, a lowland to montane forest that is contiguous with MT (Rovero et al. 2012; St. John 2008) and is currently under gazettement as forest reserve (N. Burgess, pers. comm.).
Category: