Effects of model parameters on measures of identical and non-identical foraging pairs.

Details refer to the direction of change seen when the value of a given parameter was increased. In the case of the non-identical simulations, the parameter value for individual A was fixed, and that of the focal individual B was assumed to increase from a low value upwards to eventually equal that of individual A. ‘↑↑’ indicates a strict increase in the statistics measured relative to the increase in the altered parameter, ‘↓↓’ indicates a strict decrease, ‘∪∪’ indicates a strict intermediate minimum, ‘∩∩’ indicates a strict intermediate maximum, and ‘×’ indicates no simple pattern. Single characters (‘↑’, ‘↓’, ‘∪’ and ‘∩’) indicate similar trends, but with more noise in the results explored. In comparing the effects of paired or solo foraging to identify which of these yielded the larger value, ‘pair’ means that the paired foragers had the higher values, ‘solo’ meant the unpaired foragers had the highest values, and ‘shift’ indicates that there was a change between paired and unpaired individuals having the higher values as the parameter itself changed. See the Methods section for information about how the comparative results from [30] are presented here.