1. Climate effects on plant defences, and subsequently insect herbivores, have received considerable attention. However, climate also directly affects the physiological condition of insects that may influence their ability to combat plant defences.

中文翻译：

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植物防御对昆虫食草动物的实际毒性更多地取决于昆虫脱水而不是能量储备

1. 气候对植物防御以及随后的昆虫食草动物的影响受到了相当多的关注。然而，气候也直接影响昆虫的生理状况，这可能会影响它们对抗植物防御的能力。