| a risk assessment approach to dde exposure based on the case of the eastern screech-owl (megascops asio) in apple orchards of southern quebec,canada. | as part of a larger study assessing exposure of the eastern screech-owl to pesticides in apple orchards from consumption of contaminated small-mammal prey, we evaluated the potential for owls in orchards of southern quebec to be exposed to persistent contaminants with emphasis on dde. levels were highest in short-tailed shrews (0.94 to 26.29 microg/g wet wt). based on a worst-case scenario, it is possible that consumption of small-mammal prey in orchards of the study area may result in exposure ... | 2005 | 16132415 |