“…We found a positive correlation between total and chewing insect predation rates and live plant ground cover (H5 supported). Ground cover is important for soil surface‐active arthropods (Magura, ), which are probably a key group attacking artificial caterpillars (Ferrante et al., ; Mansion‐Vaquié et al., ), and which are abundant in chaco serrano (E. González, personal observation). Plant material affects soil pH, humidity, and organic content (Sadler, Small, Fiszpan, Telfer, & Niemela, ), and it is usually preferred by invertebrates to bare ground.…”