Environmental Bioindication Studies by Bayesian Network with Use of Grey Heron as Model Species |
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Authors: | Agnieszka Sujak Andrzej Kusz Marcin Rymarz Ignacy Kitowski |
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Institution: | 1.Department of Biophysics,University of Life Sciences in Lublin,Lublin,Poland;2.Department of Modelling and Information Systems,University of Life Sciences in Lublin,Lublin,Poland;3.State School of Higher Education in Che?m,Che?m,Poland |
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Abstract: | The article presents a procedure for assessing the quality of the environment, using eggshells of birds as a biomarker implemented into a Bayesian network. An environmental quality index (EQI) was proposed and calculated on the basis of local quality indicators. Experimental data on concentrations of toxic elements in grey heron (Ardea cinerea) eggshells (biomarker of river valleys) were used to determine the empirical variables (nodes) and the probability distributions on the set of these variables. A probabilistic graphical model represents a multitude of relationships between variables in a system that enables the prediction of EQI. The model presented is a useful tool for environmental quality management. |
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