Notes on the activity of the Roman snail (Helix Pomatia L.)

A study of Roman snail (Helix pomatia L.) populations in Wrocław shows that even in the active season and under favourable conditions the proportion of snails active or resting on the surface rather than buried in the soil is usually much less than 50%.This confirms earlier studies on this and other species.Variation in the proportion found on the surface was not related to weather conditions at the time, nor were troughs and peaks correlated among sites.