http://www.eje.cz in butterfl ies (Di Mauro et al., 2007). Martinson & Raupp (2013) reported a decrease in species richness in carabid beetles, particularly in large, predatory and poor dispersing species and those that have strict habitat requirements. However, in the same meta-analysis, Martinson & Raupp (2013) reported an overall neutral effect of urbanisation on coleopteran herbivores, but a negative effect on the tiny herbivores in this insect order. In contrast, several studies showed that urbanisation increased the abundances and infestation rates of herbivorous arthropods (Christie & Hochuli, 2005; Raupp et al., 2010). A major aspect of urbanisation is the fragmentation of natural and semi-natural habitats (Marzluff et al., 2008; Raupp et al., 2010). Some meta-analyses reveal an overall lower level of damage by herbivorous insects in fragments (Martinson & Fagan, 2014), whereas others reported a neutral effect on overall herbivory (Rossetti et al. 2017). Fragmented forests also seem to be subjected to more pronounced edge effects than other semi-natural habitats (Marzluff et al., 2008; Dale & Frank 2014). This assumption was confi rmed by several studies, which reported both a higher abundance and species richness of herbivorous arthropods and thus a higher extent of leaf damage in forest edges than in the forest interior (Christie & Hochuli, 2005; Guimarães et al., 2014).