The effect of wind on shore gastropods
Article first published online: 20 AUG 2009
Journal of Zoology
Volume 166, Issue 1, pages 133–139, January 1972
How to Cite
Courtney, W. A. M. (1972), The effect of wind on shore gastropods. Journal of Zoology, 166: 133–139. doi: 10.1111/j.1469-7998.1972.tb04080.x
- Issue published online: 20 AUG 2009
- Article first published online: 20 AUG 2009
- Accepted 20 July 1971
A preliminary investigation into the effect of wind on shore gastropods has been undertaken. Moderate winds displace some Monodonta lineata (da Costa) from boulders on the shore and some individuals detach within six hours in weaker winds in the laboratory (5–10 km/h, 10°C, 94% humidity). Sheltered aspects of the rock are used to minimize the effects of the wind on shores, and maintenance movements on the shore are extensive.
In calm conditions and in light winds Monodonta lineata is more widely dispersed about the rocks than in moderate winds when the animals are either sheltering in cracks or displaced.
Providing the rock surface is damp then animals continue to move about during emersion in light winds. On a small boulder beach animals moved as much as 4 m upshore during one tidal cycle. Only slight reorientation movements were recorded during moderate winds.
Animals withstand a windspeed of 4 km/h for six hours in a wind tunnel in a humidity of 94% at 10°C, but are displaced within an hour by 10 km/h winds in similar conditions.