According to standard of minimum viable population, the ex-situ conservation of 73 rare and endangered plants are effective.

按照最小存活种群的标准，该园有73种稀有濒危植物迁地保护有效。

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This paper discussed the present status and insitu conservation of the rare and endangered plants in Hubei Province, as well as some protective Suggestions.

本文论述了湖北省珍稀濒危植物的数量、分布及就地保护现状，并提出了保护的建议和措施。

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As an important strategy for species conservation and population restoration, reintroduction is increasingly applied to the conservation of rare and endangered plants.

作为物种保护及种群恢复的重要策略之一，回归在越来越多的珍稀濒危植物保护实践中得到了应用。

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The problem has long been recognized, and the aforementioned Habitats Directive -- a corollary of the 1979 Bern Convention on the Conservation of European Wildlife and Natural Habitats -- introduced a range of measures aimed at protecting endangered species (including plants, birds and fish as well as mammals).

CNN: All creatures great, small and disappearing