▪ Abstract New developments in ecotoxicology are changing the way pesticides and other
toxicants are evaluated. An emphasis on life histories and population fitness through the use …

This paper approaches the phenomenon of hormesis (ie stimulatory effects occurring in
response to low levels of exposure to agents that are harmful at high levels of exposure) …

Page 1 Biological Report 85(1.23) December 1991 Library Contaminant Hazard Reviews
Report 23 US Fish & Wildlife Service National Ecology Research Center 4512 McMurry Avenue …

The definitive reference in its field, Ecological Risk Assessment, Second Edition details the
latest advances in science and practice. In the fourteen years since the publication of the …

In this paper we consider the relationships between effects of toxicants on population growth
rate (r) and the individual‐level traits (survival and reproduction) contributing to it by …

Complex and ever changing in its forms and functions, the element mercury follows a
convoluted course through the environment and up the food chain. The process is …

Water quality criteria are mainly based on data obtained in toxicity tests with single toxicants.
Several authors have demonstrated that this approach may be inadequate as the joint action …

Acute and whole life-cycle toxicity tests were conducted with the estuarine mysid shrimp,
Mysidopsis bahia, exposed to cyanide and selected heavy metals. Acute toxicity values (96 …

Mercury has no beneficial biological function, and its presence in living organisms is
associated with cancer, birth defects, and other undesirable outcomes (Eisler 2000). The …

Ecological effects of modern agrochemicals are typically limited to brief episodes of
increased mortality or reduced growth that are qualitatively similar to natural disturbance …