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The influence of environment on two species of land-snails in South Australia
Pomeroy, D.E. (1967). The influence of environment on two species of land-snails in South Australia. Trans. R. Soc. S. Aust. 91: 181-186
In: Transactions of the Royal Society of South Australia. Royal Society of South Australia: Adelaide. ISSN 0372-1426; e-ISSN 2204-0293
Peer reviewed article  
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Trefwoorden
    Helicella neglecta; Helicella virgata (da Costa, 1778) [WoRMS]
Author keywords
    H. neglecta
Auteur  Top 
  • Pomeroy, D.E.
Abstract
    Helicella virgata and H. neglecta are the most widespread of a number of species of exotic landsnails in South Australia. An analysis of their distribution and abundance by multiple linear regressions showed that the presence of organic matter in the soil was most important for H. virgata (it could not be tested for H. neglecta), and that there was a strong correlation between the availability of calcium and the numbers of both species. The availability of moisture was significant too, but the number of hot days in summer was markedly not so. The effects of land use, proximity to man. and type of vegetation were of relatively minor importance. The method gave satisfactory results, and might well be applied to other studies of distribution and abundance of animals.
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