Table 1.

Summary of regression analyses for 13 individual foraging paths

Time Path length Turns
ErrorP<0.05*DecreaseP<0.05*DecreaseP<0.05*Decrease
Bias10/136/108/134/89/135/9
Magnitude6/133/65/133/56/133/6
  • The orientation errors (bias) or their absolute values (magnitude) were plotted against the independent variables of time, cumulative path length and cumulative turns. The linear regression was calculated using the method of least squares.

  • * The ratio of paths for which P<0.05 (analysis of variance), indicating a significant correlation

  • The ratio of the significant correlations for which error tended to decrease over the independent variable