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. 2011 Oct 24;6(10):e26328. doi: 10.1371/journal.pone.0026328

Figure 3. Feeding duration, flower preference and proportion of uncontaminated flower visitation for C. bombi experiment.

Figure 3

A) Feeding duration on both flowers with and without the presence of Escherichia coli (n = 1400), B) Visit duration on both flowers with and without the presence of Escherichia coli (n = 1400), C) Proportion of non-contaminated flower visitation over days and between sympatric population (grey dot & continuous line) and allopatric population (black triangle & dashed line) for C. bombi experiment. C (in white) represents the presence of the parasite in the flower and NC (in grey) its absence. For the feeding duration, box plots depict median, interquatile range and non-outlier range; the dots represent the outliers. The bars represent the means between the different colonies and their 95% confidence interval. Foragers spend the same time feeding on both flowers (GLMM: p = 0.24), visit preferentially the uncontaminated flower (GLMM: p<0.001). The proportion of uncontaminated flower visitation increase over days and for the sympatric population this increase is stronger than for the allopatric population (GLMM: p<0.01; factor day: p<0.05, interaction between day and population's origin: p<0.01).