But not every invasive plant species has all of those traits.
但并不是所有的入侵种都同时具有这些特性。
More than 2, 500 invasive plant species have colonised Australia and New Zealand, competing for sunlight and nutrients.
超过2,500个外来植物物种已经植根于澳大利亚和新西兰，争夺阳光和养分。
The density of invasive plant species declined from the southeast coast inland to the northwest, which was best explained by transport density.
各省外来入侵植物物种密度由东南海岸向内陆递减，造成这一趋势的主要影响因素为交通密度；
The China–US team say that invasive animal species increased from 1990 to 2003 by more than 30 per cent to 76 species, and invasive plant species tripled between 1995 and 2003.
来自中国和美国的研究小组指出，中国外来动物入侵物种的数量从1990年到2003年增加了30%，达到76种，而植物入侵物种在1995年至2003年翻了三倍。
"The fossil record will reveal a massive loss of plant and animal species, and also the scale of invasive species - how we've distributed animals and plants across the globe," Zalasiewicz says.
“化石记录将揭示植物和动物物种的大范围灭绝，以及物种入侵的范围——人类在全球范围内散布动植物的方式，”匝拉斯·维奇如是说。
"The fossil record will reveal a massive loss of plant and animal species and also the scale of invasive species - how we've distributed animals and plants across the globe" Zalasiewicz says.
“化石记录将揭示植物和动物物种的大范围灭绝，以及物种入侵的范围——人类在全球范围内散布动植物的方式，”匝拉斯·维奇如是说。
Alien invasive plant is one that is introduced from original ecosystems to new ones by nature force or human activity, which endangers the new environment or native plant species.
外来入侵植物是指自然或人为地由原生态系统中引入到新生境的植物，会给新生境或其中的物种带来威胁。
Fig. 1 number of invasive species in agricultural ecosystems in Chinese provincial districts (a) and relationships between species Numbers of plant invaders and animal and microbe invaders (b).
图1中国省级行政区农业生态系统入侵种数统计。a图中数字表示各省级行政区总入侵种数，b图为各地植物入侵种与动物和微生物入侵种数的线性回归。
Biologists have long known that the lack of insect enemies is a key factor in determining if a plant species becomes invasive, but we are finding out that the situation is decidedly more complex.
生物学家早就知道，是否缺少昆虫天敌是决定一个植物物种是否会变成入侵物种的一个重要因素，但是，现在我们发现，情况比这要复杂得多。
And for two of the three plant species, the invasive species were doing a comparable job to the native pollinators.
对于三种植物品种之中的两种，外来物种的工作表现，与原生授粉者有的一比。
It is important significance that studied the mechanism of the allelopathy and heredity toxicity of this species to effectively control the invasive plant.
研究空心莲子草的化感作用和遗传毒性机理对于有效治理该入侵种具有十分重要的意义。
It is important significance that studied the mechanism of the allelopathy and heredity toxicity of this species to effectively control the invasive plant.
研究空心莲子草的化感作用和遗传毒性机理对于有效治理该入侵种具有十分重要的意义。
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