New field observations on the competitive displacement between two species of planorbid snails inhabiting Northeastern Brasil

作者: F. S. Barbosa , D. P. Pereira da Costa , F. Arruda

DOI: 10.1590/S0074-02761981000400004

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摘要: Observations reported in the present paper have shown that Biomphalaria glabrata is being gradually displaced by B. straminea coastal areas of two counties on state Pernambuco, Brazil, confirming former observations made same region.

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