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首页英语词典predatorpredator考试真题

predator

英 ['predətə] 美['prɛdətɚ]

英英释义考试真题实用场景例句

n. [动] 捕食者；[动] 食肉动物；掠夺者

考试真题

A strong link is found between two species when a predator sticks to one prey species.

And if a predator can move on to another species that is easier to find when a prey species becomes rare, the switch allows the original prey to recover.

And unplanned human activities have proved the idea of top-down control by top predators to be true.

If a predator can eat several species, it can survive the extinction of one of them.

In the 1960s, scientists proposed that predators at the top of a food web had a surprising amount of control over the size of populations of other species - including species they did not directly attack.

In the ocean, we fished for top predators such as cod on an industrial scale, while on land, we killed off large predators such as wolves.

It is thought that they are capitalising on their predators天敌fleeing to quieter areas.

Mathematical models have also revealed that food webs may be unstable, where small changes of top predators can lead to big effects throughout entire ecosystems.

The species they indirectly attack will turn into top predators.

When a predator always eats huge numbers of a single prey, the two species are strongly linked; when a predator lives on various species, they are weakly linked.

It is only in recent years that we hear It is only in recent years that we hear the more honest argument that predators are members of the community, and that no special interest has the right to exterminate them for the sake of a benefit ,real or fancied ,to itself.