The strength of species interactions is traditionally expected to increase toward the Equator. However, recent studies have reported opposite or inconsistent latitudinal trends in the bottom‐up (plant quality) and top‐down (natural enemies) forces driving herbivory. In addition, these forces have rarely been studied together thus limiting previous attempts to understand the effect of large‐scale climatic gradients on herbivory.

中文翻译：

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搜索欧洲橡树中昆虫食草性纬度趋势的自上而下和自下而上的驱动因素

传统上，物种相互作用的强度有望朝赤道方向增加。但是，最近的研究报道，自下而上（植物质量）和自上而下（天敌）的驱动草食性的纬度趋势相反或不一致。另外，很少一起研究这些力，因此限制了以前了解大规模气候梯度对食草动物影响的尝试。