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单词 Trophic cascade
释义

Trophic cascade

原声例句
科学60秒-科学美国人 2022年1月合集

Ecologists call this row of biological dominoes a trophic cascade.

生态学家把这一系列生物多米诺骨牌效应称为营养级联。

科学60秒 2018年5月合集

The impact of a predator down through the food web all the way to plants is called a trophic cascade.

捕食者沿食物链往下一路直达植物的影响被称为“营养级联”。

假如有如果

When you begin to remove the head of a food chain, it creates something called a trophic cascade, basically a trickle-down effect that can disrupt an entire ecosystem.

当我们开始移除食物链的顶层,这会引起一种叫作营养瀑布的现象,基本上它会一点一滴地逐步瓦解整个生态系。

英语百科

Trophic cascade

Healthy Pacific kelp forests, like this one at San Clemente Island of California's Channel Islands, have been shown to flourish when sea otters are present. When otters are absent, sea urchin populations can irrupt and severely degrade the kelp forest ecosystem.
This diagram illustrates trophic cascade caused by removal of the top predator. When the top predator is removed the population of deer is able to grow unchecked and this causes over-consumption of the primary producers.

Trophic cascades occur when predators in a food web suppress the abundance or alter the behavior of their prey, thereby releasing the next lower trophic level from predation (or herbivory if the intermediate trophic level is a herbivore). For example, if the abundance of large piscivorous fish is increased in a lake, the abundance of their prey, smaller fish that eat zooplankton, should decrease. The resulting increase in zooplankton should, in turn, cause the biomass of its prey, phytoplankton, to decrease.

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更新时间:2025/6/18 7:30:43