Bioindicators & Biomonitors: Principles, Concepts and by B.A. Markert, A.M. Breure, H.G. Zechmeister

By B.A. Markert, A.M. Breure, H.G. Zechmeister

This ebook offers finished unmarried resource assurance of bioindication/biomonitoring within the fields of ecology, ecotoxicology and environmental sciences; from the ecological fundamentals to the consequences of chemical compounds at the setting and the most recent try strategies.Contributions by way of major figures in ecology from all over the world replicate the wide scope of present pondering and examine, making this quantity crucial examining for proficient execs and scholars.

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Extra resources for Bioindicators & Biomonitors: Principles, Concepts and Applications

Sample text

When studying accumulation processes it would seem useful to distinguish between the paths by which organisms take up elements/compounds. Various mechanisms contribute to overall accumulation (bioaccumulation), depending on the species-related interactions between the indicators/monitors and their biotic and abiotic environment. Biomagnification is the term used for absorption of the substances from nutrients via the epithelia of the intestines. g. g. trachea, lungs). e. the physical environment, through tissues or organs (including the respiratory organs).

G. Zechmeister a matrix similar to the original samples to be measured in the laboratory); and (b) use of independent analytical procedures. With bioindicators we can, of course, carry out repeated sampling to get an idea of how “stable” the bioindicator under investigation is in respect of site and time variations. A more difficult problem is that of accuracy during the sampling procedure, for at present we have no “certified reference system” as a calibrator for accuracy in representative sampling.

However, pollutant A may also affect other biota, which may react even more sensitively to A than the bioindicator itself. If this sensitivity results in a change in the population density of a more sensitive organism, the occurrence of the bioindicator itself may also be affected, at least if the former is in direct or indirect competition with the latter. The question remains as to whether it is possible at all to make a statement about the current condition of the ecosystem as a whole by examining a single bioindicator.

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