Time to death response in carabid beetles exposed to multiple stressors along a gradient of heavy metal pollution

摘要

We investigated the responses of invertebrates inhabiting polluted environments to multiple stressors. Carabid beetles (Pter- ostichus oblongopunctatus F.) were subjected to food deprivation and insecticide treatment (dimethoate) to resolve trends associated with a gradient of heavy metal pollution. Metal concentrations along the gradient of five sits ranged from approximately 150 to 10, 500 mg/kg Zn, 136 to 2600 mg/kg Pb, and 0.84 to 81.9 mg/kg Cd.