Effect of storage at room temperature (25-30°C) on
pitcher fluid. Relaxation time (
) and viscosity (
) of 9 field-collected fluid samples from freshly opened N. rafflesiana pitchers decreased significantly (P < 0.5 for both; see text for statistics and Additional file 4: Tables S2 and Additional file 5: Table S3 for raw data) over a 20-day storage period at room temperature. Bars denote medians, boxes represent the inner two quartiles and whiskers include all values within 1.5 times interquartile range.