Carbonate deposition on tail feathers of ruddy ducks using evaporation ponds

N.H. Euliss; R. L. Jarvis; D.S. Gilmer

doi:10.2307/1368063

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Carbonate deposition on tail feathers of ruddy ducks using evaporation ponds

N.H. Euliss·R. L. Jarvis·D.S. Gilmer

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Abstract

Substantial carbonate deposits were observed on rectrices of Ruddy Ducks (Oxyura jamaicensis) collected during 1982-1984 on evaporation ponds in the San Joaquin Valley, California. Carbonate deposits were composed of about 75% aragonite and 25% calcite, both polymorphous forms of CaCO3. Significantly more carbonate deposits were observed on Ruddy Ducks as length of exposure to agricultural drain water increased, during the 1983-1984 field season when salt concentrations in the ponds were higher, and in certain evaporation-pond systems.

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Source-reported bounding extent: 35.460669951495305° to 35.871246850027966° latitude; -119.69604492187499° to -119.1302490234375° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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N.H. Euliss, R. L. Jarvis, D.S. Gilmer. 1989. Carbonate deposition on tail feathers of ruddy ducks using evaporation ponds. https://doi.org/10.2307/1368063

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