Fig. 2
Plot showing linear increase in water loss (WL) of Siphonaria lessonii related to shore heights at different periods of exposure (12 h, 24 h and 48 h). The line corresponds to adjusted linear function. Different line types indicate different shore heights. For comparisons where slopes differ, the Johnson–Neyman test provides the size range in which there was a significant differential response (highlighted in dashed rectangles) over which the compared regression lines did not differ significantly in elevation. a Between lower vs middle and b between lower vs upper