Interactions of herbivore exclusion with warming and N addition in a grass-dominated temperate old field

摘要: Field experiments used to explore the effects of global change drivers, such as warming and nitrogen deposition on plant productivity species composition, have typically focused bottom-up processes. However, both direct indirect responses herbivores treatments could result in important interactions between top-down effects. These may be complicated by simultaneous multiple herbivore taxa. We rodent mollusc exclosures plots a N addition field experiment examine how removal would influence biomass treatments. The effect exclusion grass more than doubled response addition, but did not respond warming, whereas increased nitrogen. In contrast, total (grasses forbs combined) while was insensitive warming. no cases were there with respect their exclosure Overall, our results demonstrated substantial variable taxa despite absence conspicuous damage canopy. therefore highlight potential importance factors experiments.