Meanwhile, in the low biodiversity ecosystems of the Arctic, with their simple food webs, so-called cascading effects are more pronounced than in temperate or warm regions. The demise of one species or trophic level (which contains organisms performing the same function in the food chain), leads to changes in others in a rapid sequence that is difficult to foresee.
此外，因为北极低生物多样性生态系统的食物网非常简单，导致所谓连锁效应比温带或温暖地区更为显著。单个物种或食性层级（包含在食物链中起到同样作用的有机体）的消亡对其他物种造成影响的速度难以预测。