植物学家首次发现,这种植物是食肉性捕食者,它们捕杀昆虫是为了“给自己补充营养”。
Botanists have discovered for the first time that the plants are carnivorous predators who kill insects in order to "self-fertilise" themselves.
当水到达合适的水位时,幼鸟就会被一条腐蚀性的沟渠保护,免受捕食者的伤害。
When the water hits the right level, the baby birds are kept safe from predators by a corrosive ditch.
因此,从多样性的角度来看,将一种主要捕食者从一个群落中彻底消灭通常是一个错误。
Therefore, from the stand point of diversity, it is usually a mistake to eliminate a major predator from a community.
如果捕食者来了,40条鱼成为午餐的可能性比10条鱼小。
If a predator comes, a fish in a group of 40 is less possible to become lunch than a fish in a group of 10.
诸多物种面临着同气候变化一样巨大的毁灭性挑战。这项研究表明,一些挑战将同狡诈的捕食者一样难以预料。
A disruption as big as climate change is bound to challenge numerous species. This study suggests that some challenges will be as unexpected as a cunning predator.
同样是暖血动物而且效率更高、适应性更强的捕食者,人类,成为这些哺乳动物的日益迫近的威胁。
Trouble has closed in on these mammals in the form of equally warm-blooded and even more efficient and adaptable predators, humans.
同样是暖血动物而且效率更高、适应性更强的捕食者,人类,成为这些哺乳动物的日益迫近的威胁。
Trouble has closed in on these mammals in the form of equally warm-blooded and even more efficient and adaptable predators.
利用重合度理论建立了一类周期中立型时滞捕食者-食饵系统正周期解的全局存在性的充分条件。
Sufficient conditions are obtained for the global existence of a positive periodic solution of periodic neutral delay predator-prey system by using the method of coincidence degree theory.
研究了一类捕食者-食饵模型的平衡态系统在第三边界条件下正解的存在性。
The existence of positive solutions of the steady-state system is studied for a kind of predator-prey model under the third boundary conditions.
第三章将在对顶级捕食者进行脉冲干扰,即周期性的向食物链中投放定量的顶级捕食者的前提下,研究三种群食物链系统的稳定性。
In chapter 3, in this paper, we investigated a three trophic level food chain system with periodic constant impulsive perturbations for top predator.
第三章将在对顶级捕食者进行脉冲干扰,即周期性的向食物链中投放定量的顶级捕食者的前提下,研究三种群食物链系统的稳定性。
In chapter 3, in this paper, we investigated a three trophic level food chain system with periodic constant impulsive perturbations for top predator.
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