1. Morphological plasticity in a calcifying modular organism: evidence from an in situ transplant experiment in a natural CO 2 vent system by Chiara Lombardi, Silvia Cocito, Maria Cristina Gambi, and Paul D. Taylor R. Soc. Open Sci. Volume 2(2):140413 February 11, 2015 ©2015 by Royal Society

2. Study area and transplant sites around the CO2 vents off Ischia (Naples, Italy). Chiara Lombardi et al. R. Soc. open sci. 2015;2:140413 ©2015 by Royal Society

3. Calpensia nobilis colony growth. Chiara Lombardi et al. R. Soc. open sci. 2015;2:140413 ©2015 by Royal Society

4. Mean growth in area ± s.d. Chiara Lombardi et al. R. Soc. open sci. 2015;2:140413 ©2015 by Royal Society

5. Scanning electron micrographs of C. nobilis colony growing edges from control and vent sites. Chiara Lombardi et al. R. Soc. open sci. 2015;2:140413 ©2015 by Royal Society

6. Diagram of morphological plasticity at the growing edge. Chiara Lombardi et al. R. Soc. open sci. 2015;2:140413 ©2015 by Royal Society

7. Mean zooid length (ZL) (μm) (a) and orifice width (OW) (μm) (b) within each treatment (black- entire line: control; grey-dashed line: vent) across periods (16 days, 34 days, 48 days, 57 days, 87 days). Chiara Lombardi et al. R. Soc. open sci. 2015;2:140413 ©2015 by Royal Society