(1972) Toxicity of some insecticides to four species of malacostracan crustaceans , Washington, DC, US Department of theInterior, Bureau of Sport, Fisheries and Wildlife, pp.
(c) World Health Organization 1989 Publications of the World Health Organization enjoy copyright protection in accordance with the provisions of Protocol 2 of the Universal Copyright Convention.
This has been translated into Polish here:
Since the laying of eggs isdependent on the stimulus of adequate nest material, this lengtheningof the period between pairing and egg laying was considered to beprimarily an indirect effect on reproduction, triggered by a directeffect on behaviour; the egg was retained longer in the oviduct.
Comparison Between Kriging Resourcesand ACA Howes Resources
An exponential model was tentatively fitted, but it wouldnot be prudent to use it because the data is so erratic compared to thealong-strike experimental data.
Comparing Geostatistical and Non-geostatisticalMethods
Firstly, a more complicated methodsuch as indicator kriging is often chosen when experimental variogramsappear to be pure nugget. However, though the grade variogram data wasslightly noisier than the thickness data, both variables produced variogramdata of excellent quality (see Section 3.6).
Conclusions and Recommendations
Though the experimental data was more erratic than thealong-strike data, a spherical model was fitted that had parameters (nugget,range, and sill) similar to the along-strike model.
Recommendations for Future Work
However, in a casereported by Deutsh (1989) where the ordinary kriging overestimated thegrade by about twenty-five percent, the raw semi-variogram data was sonoisy that no trend could be discerned.
Using Confidence Limits in Makinga Production Decision
'Bioconcentration factor' is a quantitative way ofexpressing bioaccumulation: the ratio of the concentration of thechemical in the organism to the concentration of the chemical in theenvironment or food.
selecting his or her elective and optional subjects.
According toDominy et al (1997) and Fytas et al (1990), ordinary block kriging performswell when the coefficient of variation is close to (or less than) one.