a1 School of Biological Sciences, Flinders University, GPO Box 2100, Adelaide SA 5001, Australia
a2 South Australian Research and Development Institute, Aquatic Sciences, West Beach SA 5022, Australia
Under the assumption that dislodged intertidal gastropods have developed some adaptations to return to their original habitat, we investigated the cues involved in the navigation ability of Littorina littorea, following a simulated wave-dislodgement. Return rates decreased by 2 and 4-fold in the absence of chemical cues at the surface of the sediment and the rock, respectively. The 19-fold decrease in return rates observed in the absence of both cues suggests their synergistic effect on L. littorea navigation. Chemoreception might be much more involved in the navigation and the survival of intertidal gastropods following wave dislodgement than previously thought.
(Received June 25 2008)
(Accepted October 28 2008)
(Online publication April 20 2009)