1. The decline in insect abundance and diversity observed in many ecosystems is of major concern because of the long-term consequences for ecosystem function and stability.

中文翻译：

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级联灭绝是昆虫数量减少的隐藏驱动因素

1. 由于对生态系统功能和稳定性的长期影响，在许多生态系统中观察到的昆虫丰度和多样性下降是一个主要问题。