SO2 :: a snail

Submitted by Eleanor Campbell on Thu, 11/08/2011 - 10:30
Latin name: 
Balea perversa

Impact Type: Deposition of pollutant

Key Concerns:

The land snail Balea perversa lives mostly on trees and walls where it mostly grazes on lichens. Work by Holyoak (1987) has show that Balea perversa is absent from areas of high SO2 pollution.

Additional Comments:

None 

Critical Load/level: 
Critical Load/ Level

No estimate available
References: 
Dudley, N.; Stolton, S. 1996 Air pollution and biodiversity: a review
Holyoak, D.T. 1987 Effects of atmosheric pollution on the distribution of Balea perversa (Linnaeus) (Pulmonata:Clausiliidae) in southern Britain Journal of of Conchology 29 319-323
Species group: 
Gastropoda (Snail & Slugs)
Pollutant: 
Sulphur Dioxide (SO2)