入侵物种正在驱赶某些本地物种。
外来物种和本地物种的区分是人为的。
Distinctions between exotic and native species are artificial.
它们可以对一些本地物种产生威胁，甚至摧毁和取代其他物种。
They can threaten some native species or even destroy and replace others.
非本地物种可能会在几十年内看起来无害，继而变得有入侵性。
Non-native species can appear harmless for decades, then turn invasive.
它们阻止了鱼类迁徙，并改变了对本地物种至关重要的水生栖息地。
They prevent fish migrations and change aquatic habitats essential for native species.
即使被从陨石坑中挖掘出的陆地物质稀释，这种陨石成分也很容易识别。
Even diluted by the terrestrial material excavated from the crater, this component of meteorites is easily identified.
更重要的是，非本地物种可能会在几十年内看起来无害，然后变得有入侵性。
What is more, non-native species can appear harmless for decades, then turn invasive.
构成地球表面的那些构造板块极其缓慢但剧烈的运动，也可能导致异地物种形成。
Allopatric speciation can also be brought by the imperceptibly slow but colossal movements of the tectonic plates that make up Earth's surface.
鳟鱼迁移服务由杆执照协会资助，因此钓鱼者们应该赞扬自己拯救了这最后残留的本地物种。
The trout-removal service is funded by the rod license, so anglers should pat themselves on the back for saving this last remaining indigenous strain.
克雷奇仍然认为古印度安人在灭绝上的责任即使不是主要的，也是次要的，他认为人类在其他地方造成了当地物种灭绝。
Still, Krech attributes secondary if not primary responsibility for the extinctions to the Paleoindians, arguing that humans have produced local extinctions elsewhere.
并非所有本地物种都是如此容易留住。
他们同样可以在像小行星这样的近地物体的提取样本。
They could similarly sample near-Earth objects like asteroids.
当地物价上涨与可以从国外进口的相关替代商品有关。
Their price instead rises, relative to the price of things that can come in from overseas.
有时，非本地植物通过耗尽营养资源而威胁本地物种。
Non-native plants sometimes threaten native species by using up nutrient resources.
在许多太平洋岛屿上，外来动植物已经毁灭了本地物种。
Invasive animals and plants have devastated native species on many Pacific islands.
所以说，时间之箭建立在任何适用当地物理定律的地方。
So the arrow of time is built on top of whatever local laws of physics apply.
本区域的北部(见主图像右侧)有呈西北-东南方向的线状地物。
The northern part of the region (to the right of the main image) displays linear features with a preferential northwest-southeast orientation.
想要创造全新的生态系统来使本地物种和外来迁移物种混合是冒险的。
Creating whole new ecosystems that mix natives with transplanted exotics might be risky.
尽量的购买当地物产，尽量不要购买那些从国外千里迢迢运过来的东西。
Try to buy local products whenever possible instead of those that have been flown or shipped in from overseas.
为了分配不同的动画修剪到每个粒子，在例证菜单里建立恰好地物体索引属性。
To assign different animation clip to every particles, inside the Instance menu set up opportunely the Object Index attribute.
许多地方，如西欧大部，下撒哈拉非洲和澳大利亚，则完全没有可驯化的本地物种。
Indeed many places, such as large parts of Western Europe, sub-Saharan Africa and Australia, had no domesticable native species at all.
“我们更为迅速，”天地物流公司“感动世界”项目的主管卢多•奥尔里奇如此认为。
“We're just faster, ” says Ludo Oelrich, the director of TNT's “Moving the World” programme.
在圣约翰的一座小山上有一个植物园，里边有两个地方展示了本地物种：石园和泥炭园。
At the Botanical garden on a hill above St John's, two areas showcase native species: the rock garden and the peat garden.
而本地物种因为没有充分的时间适应入侵者，对它们的“攻城掠地”表现得毫无抵抗之力。
And because native species haven't had time to adapt to these new arrivals, many stand defenseless against the invaders.
不像一些情况下入侵物种在食物竞争中胜过本地物种，秃鹫基本上是以家养山羊的尸体为食。
Unlike cases where invasive species out-compete native animals for food sources, the vultures seem to have been feeding on mostly the carcasses of dead domesticated goats.
把亚马逊地区一片两百年的红木群或刚果地区的一片萨佩莱木群移走，当地物种有可能灭绝。
Remove 200-year-old Amazon mahogany or Congolese sapele trees and the species may go locally extinct.
例如，在该国10,000种植物物种中，当地物种大约为1,200，并且只出现在土耳其。
For example, around 1,200 of its 10,000 plant species are endemic to the country, and are found only in Turkey.
海拔最低的一些岛屿如果适当泛滥的话，还可以为胡瓜鱼、鲑鱼和其他本地物种提供栖息地和食物。
Some of the lowest islands could be allowed to flood, providing habitat and food for smelt, salmon, and other native species.
海拔最低的一些岛屿如果适当泛滥的话，还可以为胡瓜鱼、鲑鱼和其他本地物种提供栖息地和食物。
Some of the lowest islands could be allowed to flood, providing habitat and food for smelt, salmon, and other native species.
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