Allocation of an individual's companion slots to her associates. The histogram shows the fraction of an individual's companion slots that she allocates to spend with her m-term associates, where m is shown on the x-axis (see Methods for details). Black bars represent the observed mean values, and error bars indicate ± 1 standard error (N = 51). Gray bars represent the distribution expected if individuals chose their companions randomly every season.
de Silva et al. BMC Ecology 2011 11:17 doi:10.1186/1472-6785-11-17