Evaluation of empirical presence data versus expert opinions to assess habitat suitability and landscape permeability – a case study of six butterfly species in Saxony, Germany
Abstract Failures in achieving the 2010 goals of slowing down or halting the loss of biodiversity, and the setting of new biodiversity targets set for 2020, stress an urgent need to expand current reserve networks and to improve their effectiveness in protecting species and habitats. Habitat suitability models, and derived maps from them, are among the broadest used tools for identifying the ecol