| chlorinated contaminants in chorio-allantoic membranes from great blue heron eggs at whidbey island naval air station. | chorio-allantoic membranes (cams) were collected and analyzed for chlorinated hydrocarbons as part of a wildlife toxicology demonstration project at naval air station (nas) whidbey island, washington, usa. concentrations of ddt, dde, ddd, aroclor 1254, and aroclor 1260 were found at concentrations below 0.4 ppm for 13 of 14 samples. the low correlations among ddt and its metabolites in cams suggest herons are not being exposed to a consistent source of these compounds. comparison of chlorinated ... | 1995 | 7874465 |
| heavy metal concentrations in great blue heron fecal castings in washington state: a technique for monitoring regional and global trends in environmental contaminants. | | 1995 | 8520146 |
| metal concentrations, foraging distances, and fledging success of great blue herons nesting along the hanford reach of the columbia river. | an ecological risk assessment of the spatial distribution of metal concentrations along the hanford reach of the free-flowing columbia river in southcentral washington, identified great blue herons, ardea herodias, at potential risk through the ingestion of contaminated riverine biota, especially fish. we measured metal concentrations in livers of pre-flight herons from the hanford reach and excrement samples taken from the same nests. nests were distributed among three colonies situated upstrea ... | 2005 | 15931979 |