1. Adaptive phenotypic plasticity has been a major subject in evolutionary ecology, but how a species' behaviour may respond to certain environmental change is still not clear. In grasslands worldwide, large herbivores are increasingly used as a tool for grazing management, and occur to interact with grasshoppers that dominate grassland insect communities. Previous studies have been well‐documented about grazing effects on diversity and abundance of grasshoppers. Yet, how grazing may alter grasshopper behaviour, and potential effects on their abundance remains elusive.

中文翻译：

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大型食草动物放牧对草甸草原蚱蜢行为和数量的影响

1. 适应性表型可塑性一直是进化生态学的一个主要课题，但物种的行为如何对某些环境变化做出反应仍不清楚。在世界各地的草原上，大型食草动物越来越多地被用作放牧管理的工具，并与主导草原昆虫群落的蚱蜢发生相互作用。先前的研究已经充分证明了放牧对蚱蜢的多样性和丰度的影响。然而，放牧如何改变蚱蜢的行为，以及对它们数量的潜在影响仍然难以捉摸。