hoodia是一种受保护植物，很多专家怀疑，各公司都用其他的同属植物来部分或全部代替hoodia使用。
Hoodia's a protected plant, and many experts suspect that companies replace some or all of it with another species of the same plant.
但在受火灾保护的实验区，一些多年生草本植物最终占据了主导地位，超过了其他所有植物。
But in experimental areas protected from fire, a few perennial grass species eventually come to dominate, outcompeting all others.
哈佛大学研究人员认为，这些被称为类胡萝卜素的植物化学物质，可以保护受老化损伤的视网膜。
These plant chemicals, known as carotenoids, protect your retinas from the damage of aging, according to Harvard researchers.
而这样的增长可以让现有受保护的珍稀植物的种类翻三番。
Such an increase could triple the number of types of rare plant in the preserves.
如果预测准确，那么这个地区将会发现更多新的物种，这些受保护动植物的保护范围将会很有希望得到扩大。
If predictions hold true, the region will yield more new species discoveries in future, hopefully permitting expansion of protected regions on the animal and plant-rich island.
表明人类干扰是长江流域植物受威胁的主要原因，保护森林成为保护长江流域稀有濒危植物的主要途径。
These showed that human activities were the main factor threatening the survival of plants, and preserving forests were the effective approach to save the rare and endangered plants in the valley.
该研究为建立我国重点保护野生植物受威胁等级体系、实施有效的保护策略提供了科学参考。
Our study provides a scientific reference for the establishment of a threaten status hierarchy and the protection of endangered plants.
其他设施包括游客中心则设有展览介绍森林中受保护的动物及植物。
Other facilities include a Visitor Centre that contains an exhibit giving information about the flora and fauna of the reserve.
在利用外来植物被列为受保护的口音，在赛季中一Organary展示和生产。
The use of exotic plants were included as accents and protected in the seasons in an Organary, for display and production.
这些自然生境拥有许多动植物物种，包括具有保护意义的特有、濒危和受威胁物种。
The natural habitats host many species of flora and fauna including endemic, endangered and threatened species of conservation significance.
这些自然生境拥有许多动植物物种，包括具有保护意义的特有、濒危和受威胁物种。
The natural habitats host many species of flora and fauna including endemic, endangered and threatened species of conservation significance.
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