Its conservation is key to the sustainable propagation of Antarctic species.

对它的保护对维持南极物种繁衍可持续性来说很关键。

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These include the centuries-old custom of "bul", where leaders would call a temporary stop to fishing for key species in order to give fish stocks an opportunity to replenish.

这些传统包括几个世纪以来被称之为“bul”的旧习俗，领导人会要求暂停捕捞一些重要种类的鱼，给鱼类总储备量繁衍补充的机会。

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Perhaps we should give special attention to the conservation of such plant species since they lack key factors in their defenses against the environmental disruption caused by pesticide use.

也许我们应该特别注意保护这类植物，因为它们缺乏关键的因素来抵御由使用杀虫剂而造成的环境破坏。

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North Highland Forest Trust (NHFT) said the species was important to rare insects and a key component in healthy wild habitats.

BBC: Bid to boost 'charismatic' tree

The site is critical for the survival of several species of endangered waterbirds, to which the key threat is large-scale egg and chick collection by villagers.

UNESCO: OFFICE IN PHNOM PENH

Thus it may be the key which explains how prions are able to jump so effectively across the species barrier.

BBC: Prions damage brain tissue