Insect herbivores reduce plant biomass loss and enhance plant recovery in response to extreme drought

Pot: plant number; Block: 8 blocks. Box: 5 row。 Soil origin: soil collection originate. North: Netherlands; South: Hungary; Plant legacy: soil conditioned by previous plant communities. Native: Native plant communities conditioning; RE: Range-expanding plant communities conditioning; Drought: summer drought (Drought) or not (Control); Herbivore: Control: Cage no grasshopper; Grasshopper: Cage with grasshopper. Species origin: plant communities originate. Native: Native plant communities; RE: Range-expanding plant communities. Species: Four native plants and Four range-expanding plants. Leaf mass: leaf dry biomass. Stem mass: Stem dry biomass. Shoot biomass: leaf dry biomass added stem dry biomass.