http://onlinelibrary.wiley.com/wol1/doi/10.1002/ece3.2003/full

The plant damage caused by each pest species individually had, as expected, either no, or a negative impact on seed yield and the strongest negative effect was caused by pollen beetles. However, seed yield increased when plant damage caused by both seed and stem weevils was high, presumably due to the joint plant compensatory reaction to insect attack leading to overcompensation.

被单一种类害虫伤害的油菜，结籽产量要么不收影响，要么降低。

然而，遭受多种害虫伤害的油菜，结籽产量却提高了！！！！

作者怀疑是油菜的过度补偿性生长！！

这结果，我被惊道了！你呢？