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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
How climate change affects biotopes protected under Natura 2000 in southern Bohemia?
 Vaškovský, Adam ; Křenová, Zdeňka (advisor) ; Trnka, Miroslav (referee)
Warnings of the intensity and widespread negative impacts of ongoing climate change are becoming more urgent. EU countries have created a unique network Natura 2000 to protect Europe's biodiversity and are legally obliged to protect the sites so that their conservation targets do not deteriorate. The key question is whether the static Natura 2000 system will continue to fulfil its purpose in the future, or whether climate change will lead to significant losses of European biodiversity. To date, there are still very few studies that address the modelling of climate change impacts on Natura 2000 sites. In this paper, using a new method combining climate envelope models with procedures applied to assess climate change risks to agroecosystems, I assessed the impact of climate change on eight selected natural habitat types (NHTs) occurring in south Bohemia. Agroclimatological indicators generated by the AgriClim model were used as predictors of the occurrence of suitable climate for NHTs. For modelling, I used three machine learning algorithms (generalized additive model, artificial neural network and random forest) and two ensemble learning techniques (averaging and stacking), of which I chose random forest as the most suitable for the resulting predictions. The modelling results show that for the...
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