A few considerations on some current modelling approaches to assess the impact of radiation on the population size of wildlife species
2021
Monte, Luigi
This note outlines some features of current state-of-the-art models aimed at assessing the radiological impact on wildlife. Such models can be interpreted as particular realisations of an archetypal model from which they can be derived on the basis of specific hypotheses described and analysed here. A stressor can influence, to varying degrees, on the one hand, the inherent biological mortality of a species and, on the other hand, the actual mortality of a species competing for survival in the ecosystem. Generally, the actual mortality rate of a species impacted by a stressor is linked through complicated mathematical relationships to the excess biological mortality caused by the stressor. Such relationships may depend on the particular type of model. The models can be of help to select criteria for the assessment of the radiological impact and to identify suitable parameters for its evaluation.
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