Mean SRI of an individual versus the number of her associates. Each point shows the number of associates of an individual averaged over 5 seasons and the SRI value of the individual averaged over all of her associates and all seasons (see text for details). Data for each season as opposed to averages over all seasons are shown in Additional file 4: Figure S4.
de Silva et al. BMC Ecology 2011 11:17 doi:10.1186/1472-6785-11-17