The influence of desiccation and predation on vertical size gradients in populations of the gastropod Oxystele variegata (Anton) on an exposed rocky shore

@article{McQuaid1982TheIO,
  title={The influence of desiccation and predation on vertical size gradients in populations of the gastropod Oxystele variegata (Anton) on an exposed rocky shore},
  author={Christopher David McQuaid},
  journal={Oecologia},
  year={1982},
  volume={53},
  pages={123-127}
}
Oxystele variegata (Anton.) exhibits a vertical size gradient contrary to the model proposed by Vermeij (1972) for low/mid intertidal species, as shell size increases in an upshore direction. Settlement occurs in the lowest zones and juveniles are restricted to the lower shore by conditions of desiccation higher up the beach. Juveniles suffer rapid water loss due to a relatively large opercular surface area and circumference and have a much lower resistance to water loss than adults. This leads… CONTINUE READING