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Hydrogen-Ion Concentration and the Distribution of Limnaea truncatula and L. peregra, with a Note bearing on Mosquitoes

Published online by Cambridge University Press:  06 April 2009

C. L. Walton
Affiliation:
(Adviser in Agricultural Zoology, Department of Agriculture, University College of North Wales, Bangor.)
W. Rees Wright
Affiliation:
(Demonstrator in Zoology, University College of N. Wales, Bangor.)

Extract

During the past few months we have collected a considerable amount of information relating to the value of pH. as affecting the distribution of the three species of Limnaea commonly found in North Wales. Tables I and II show that L. truncatula occurs over a range of pH. 6·0 to 8·6, and L. peregra 5·8 to 8·8; L. palustris was recorded from 7·4 to 8·0 (but only three of the readings included this species).

Type
Research Article
Copyright
Copyright © Cambridge University Press 1926

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References

REFERENCES

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