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Showing 1 to 1 of 1 for “"Physa Acuta Snails"”.
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Isolating Confounding Abiotic and Biotic Effects on the Phenotype on Physa Acuta Snails
… the presence of habitat-specific polymorphism in Physa acuta snails collected from three streams and their corresponding downstream reservoir. In lotic systems shells were rotund with larger apertures, while those from lentic systems were more elongate with smaller apertures. In a reciprocal …