Grasslands, originally covering 30% of the Earth's land area are now
severely affected by anthropogenic factors such as land use change and
fragmentation related to modern agricultural technology, invasive
species, human disturbance and climate change (Daehler et al. 2003, Baer
et al. 2010).
This change has initiated a wide range of conservation efforts to restore native grasslands all over the world (Yurkonis et al. 2010). Grasslands are considered as biodiversity hotspots in several continents (Pywell et al. 2010), harbouring a number of threatened species or those close to extinction (Ishii et al. 2009).