Ecological effect parameter

Ecological effect parameters should generally and ideally be measures of the reproduction or abundance of key functional organisms of the lake. In this model we simply use the metal concentration in top predator as the target effect parameter. 

Doelman P, Jansen E, Michels M, Van-Til M (1994) Effects of heavy metals in soil on microbial diversity and activity as shown by the sensitivity-resistance index, an ecological relevant parameter. Biol Fertil Soils 17 177-184... 

The uncertainty analysis that is a part of formal EcoRA methodology is designed to ensure adequate estimation of ecological effects based on a state-of-the-art scientific basis. Moreover, if applied on a local scale for site-specific assessments, with the use of empirical input data as biogeochemical parameters, the CLL approach is likely to provide results with a higher degree of confidence than the formal EcoRA model. 

Copper TT comparison of effects occurring at molecular (DNA profiling) and population (ecological fitness parameters including acute and chronic toxicity) levels for Daphnia magna. I (Atienzar et al., 2001)... 

The speciation is of utmost importance in evaluating ecological effects. The response of organisms is specific to substrates. As shown in Section 10.6, the free metal-ion activity is a key parameter that usually determines its biological effects on phytoplankton. These concepts can, with certain limitations, also be extended to higher organisms and plant roots. 

The geochemical phases of phosphorus are the important parameters that reflect the bioavailability and ecological effects of phosphorus. As is well known, aqueous phosphate shares with nitrate the characteristic of being a major growth-limiting nutrient in the global biosphere, and apatite and iron oxide weathering are the major aquatic supplies. 

Ellis, B. D., P. Butterfield, W. L. Jones, G. A. McFeters, and A. K. Camper. 2000. Effects of carbon source, carbon concentration, and chlorination on growth related parameters of heterotrophic biofilm bacteria. Microbial Ecology 38 330-347. 

Py-FI mass spectrometric fingerprint can be developed as a fast, comprehensive, highly sensitive and reproducible analytical approach to discern any effects that GM crops may exert on soil ecological parameters (Melnitchouck et al., 2006). 

---