Publications
| acute toxicity of nitrate and nitrite to sensitive freshwater insects, mollusks, and a crustacean. | both point- and nonpoint-sources of pollution have contributed to increased inorganic nitrogen concentrations in freshwater ecosystems. although numerous studies have investigated the toxic effects of ammonia on freshwater species, relatively little work has been performed to characterize the acute toxicity of the other two common inorganic nitrogen species: nitrate and nitrite. in particular, to our knowledge, no published data exist on the toxicity of nitrate and nitrite to north american fres ... | 2012 | 21877224 |
| diversity of stonefly hexamerins and implication for the evolution of insect storage proteins. | hexamerins are large storage proteins of insects in the 500 kda range that evolved from the copper-containing hemocyanins. hexamerins have been found at high concentration in the hemolymph of many insect taxa, but have remained unstudied in relatively basal taxa. to obtain more detailed insight about early hexamerin evolution, we have studied hexamerins in stoneflies (plecoptera). stoneflies are also the only insects for which a functional hemocyanin is known to co-occur with hexamerins in the h ... | 2007 | 17785194 |