Keystone species

some, known as keystone species, play a role in ecosystems that seems out of proportion to their number, such that even small changes in their abundance may have great impacts on the ecosystems in which they live.

一些已知的重要物种，在生态系统中扮演的角色超出他们在数量上的比例。这样的话，即使数量上很少的变化对他们所居住地方的生态系统也会产生很大的影响。

scientists are studying a potential keystone species in this forest.

科学家们正在研究这片森林里的一种潜在的关键物种。

the environmental community has tried to build public awareness using keystone species, like the panda or koala.

环境社会试图提供公众意识，用重要的物种，如熊猫、考拉来做宣传。

well, that's what a keystone species does in an ecosystem.

嗯，这就是拱顶石物种在生态系统中的功能。

professor: precisely, so the beaver in this ecosystem is what we call a keystone species. the term keystone kind of explains itself.

教授：准确的说，那么在这种生态系统中的海狸就是我们所说的拱顶石物种了。

thus when considering biodiversity conservation, the term keystone species has been introduced by conservationists and ecologists to protect ecosystem functioning more efficiently with the protection of keystone species.

通过对关键种的保护，更有效地保护其所在生态系统的功能过程。

developments of the studies on the theory of keystone species in ecosystems

生态系统关键种理论的研究进展

this paper introduces the effects of species diversity on ecosystem functioning: the mechanisms and hypotheses, including the redundant species hypothesis, rivet hypothesis, idiosyncratic hypothesis, null hypothesis, compensatory/ keystone species hypothesis, non-linear hypothesis, and monotonic/ unimodal hypothesis.

本文主要介绍了有关物种多样性对生态系统功能的影响机制及有关假说，包括冗余种假说、铆钉假说、不确定假说、无效假说、补偿/关键种假说、非线性假说、单调/驼峰模型假说等。

these are also called "chains of extinction" . [9] this is especially common with extinction of keystone species.

也被称为：“连锁灭绝”。对有重要作用的物种的灭绝更是如此。

the theory and models of population viability analysis and minimum viable population are used to study the problem of species extinction and the viability of ecosystems can be determined by using the viability of keystone species, thus they are theoretical foundation of the nature reserve design.

种群生存力分析和最小可存活种群的理论及模型用于物种绝灭问题的研究，同时关键种的生存力用于确定生态系统的生存力，因而该理论和模型成为自然保护区设计的理论基础。

this paper discussed the keystone species concept and introduced the typical characteristics of keystone species and their identification in communities or ecosystems.

在本文中，对关键种的概念进行了讨论，并介绍了关键种的典型特征及其在群落和生态系统中的判别。

scientists are studying the panda as a potential keystone species in this forest.

科学家们正在研究熊猫作为这片森林中的潜在关键物种。

well, the king cobra is literally a keystone species in these rainforests .

眼镜王蛇实际上是这些森林中最重要的物种。

Fig trees are a keystone species in the ecosystem of tropical rainforest in Xishuangbanna.

榕树是热带雨林生态系统中的一类关键物种.

basic characteristics of the psammophytic vegetation on coasts of shandong province and the spatial pattern of its keystone species

胶东沿海砂生植被基本特征及主要建群种空间分布格局的研究

on the function of keystone species theory to the construction of eco-industrial park

关键种理论对构筑生态工业园的指导作用研究

A Winter Day on Paine Mountain The concept of keystone species, put forward by Robert T Paine in 1969, has rapidly become a popular field of international researches on ecology.

1969年，由Paine提出的关键种概念，迅速成为国际生态学的研究热点。

There are the so-called Keystone species that process the significant roles for healthy and stability of the whole eco-systems.

在生态系统中有这样一些物种，它们对整个生态系统的健康与稳定起着举足轻重的作用，这些物种被称为Keystone（关键物种）。