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1 March 2010 Consumption of Eggs of the Endangered Fountain Darter (Etheostoma fonticola) by Native and Nonnative Snails
C. T. Phillips, M. L. Alexander, R. Howard
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Abstract

We examined the percentage of consumption of eggs of the endangered fountain darter, Etheostoma fonticola, by native and nonnative snails from the San Marcos River, Hays County, Texas. Although all snails consumed eggs, non-native Marisa cornuarietis (Prosobranchia: Ampullaridae) and native Helisoma anceps (Pulmonata: Planorbidae) consumed a significantly greater percentage of eggs than non-native Tarebia granifera and Melanoides tuberculatus (Prosobranchia: Thiaridae) and the native Physella virgata (Pulmonata: Physidae). Dramatic increases in M. cornuarietis in the San Marcos and Comal springs may have an adverse affect on populations of fountain darters.

C. T. Phillips, M. L. Alexander, and R. Howard "Consumption of Eggs of the Endangered Fountain Darter (Etheostoma fonticola) by Native and Nonnative Snails," The Southwestern Naturalist 55(1), 115-117, (1 March 2010). https://doi.org/10.1894/JS-26.1
Received: 5 March 2008; Accepted: 1 January 2009; Published: 1 March 2010
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