Vorstellung einer ökosystemaren FFH-verträglichkeitsprüfung: Ein modell anhand relevanter schlüsselarten für das nahrungsnetz (Proposal of an impact assessment to implement the habitats directive – Suggestion of an ecosystem model using relevant keystone species)

Fretzer, S. (2015) Vorstellung einer ökosystemaren FFH-verträglichkeitsprüfung: Ein modell anhand relevanter schlüsselarten für das nahrungsnetz (Proposal of an impact assessment to implement the habitats directive – Suggestion of an ecosystem model using relevant keystone species). Naturschutz und Landschaftsplanung, 47 (10). pp. 319-327.

Abstract

This study demonstrates how an ecosystem model can be applied for an effective Impact Assessment (IA) to implement the Habitats Directive. The model identifies keystone species of the impacted area by determining their relative impact on the food web (Ecopath), analyses the conservation status of protected species and habitats over several years, and highlights the development of the ecosystem and its potential capability (Ecosim). The routine of “Mixed Trophic Impact” points out strategies that can improve the condition of preservation goals. Ecospace illustrates the spatial impact of cumulative effects and also the effectiveness of measures to minimize damage. The results of this case study clearly demonstrate that it is not sufficient to focus only on habitat loss, but also on behavioural aspects and predator-prey-interactions, which are essential components of an IA. Ecospace shows a drastic decline of red kite and the woodrush beech forest, whereas the protected species stag beetle increased in biomass due to the displacement of its predators. This study highlights the impacts of hunting and agricultural activities on the food web and on keystone species and thus, it is crucial to include these activities in an IA. The study certifies that Ecopath, Ecosim and Ecospace are an effective, ecosystembased standard method for an IA and for a sustainable management of Natura 2000 sites.

Item Type:	Journal Article
Murdoch Affiliation(s):	School of Veterinary and Life Sciences
Publisher:	Verlag Eugen Ulmer
Copyright:	© 2015, Verlag Eugen Ulmer
URI:	http://researchrepository.murdoch.edu.au/id/eprint/28735

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