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A laboratory study of preferential predation by the newt Notophthalmus v. viridescens

, : A laboratory study of preferential predation by the newt Notophthalmus v. viridescens. Canadian Journal of Zoology 58(9): 1712-1717

Captive newts (Notophthalmus viridescens viridescens) preferred the amphipod Hyalella azteca to the cladoceran Daphnia magna or D. pulex at high prey density, but preferred Daphnia at low prey density. Relative density of body did not affect preference for H. azteca at high prey density, but decreasing the temperature eliminated the preference for H. azteca at high prey density. Turbidity of the water decreased the feeding rate.


DOI: 10.1139/z80-235

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