Figure 7 from: Nako J-D, Lee NS, Wright JC (2018) Water vapor absorption allows for volume expansion during molting in Armadillidium vulgare and Porcellio dilatatus (Crustacea, Isopoda, Oniscidea). In: Hornung E, Taiti S, Szlavecz K (Eds) Isopods in a Changing World. ZooKeys 801: 459-479. https://doi.org/10.3897/zookeys.801.23344

Figure 7 A Percentage mass change between 5 days premolt and anterior ecdysis for Armadillidiumvulgare maintained in 100 % RH (blue) and 97 % RH (red) and plotted as a function of premolt mass. Trendlines show best-fit logarithmic curves. Animals in 97 % RH achieve slightly smaller proportional mass changes to those in saturated air, consistent with the reduced vapor pressure gradient for WVAB Log-log plot showing the relationship between fractional mass-gain and pre-molt mass in 100 % RH (% mass gain α M-0.676).