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The science and economics of ex situ plant conservation

机译:异地植物保护的科学和经济学

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摘要

Ex situ seed storage underpins global agriculture and food supplies and enables the conservation of thousands of wild species of plants within national and international facilities. As an insurance policy against extinction, ex situ seed conservation is estimated to cost as little as 1% of in situ conservation. The assumptions, costs, risks and scientific challenges associated with ex situ plant conservation depend on the species, the methods employed and the desired storage time. Recent, relatively widespread evidence of less than expected longevity at conventional seed bank temperatures, innovations in the cryopreservation of recalcitrant-seeded species and economic comparators provide compelling evidence that ultra-cold storage should be adopted for the long-term conservation of plants. Policy instruments, such as the Global Strategy for Plant Conservation (2011-2020), should respond to the evidence base and promote the implementation of cryopreservation for both tropical and temperate plants.
机译:异地种子存储是全球农业和粮食供应的基础,并能在国家和国际设施内保护成千上万的野生植物。作为一种防止灭绝的保险政策,据估计,异地种子保护的成本仅为原地保护的1%。与异地植物保护相关的假设,成本,风险和科学挑战取决于物种,采用的方法和所需的存储时间。最近,相对广泛的证据表明,在常规种子库温度下,其寿命比预期的要短,在顽固播种的物种的冷冻保存方面的创新以及经济比较者提供了令人信服的证据,即应将超冷保存用于植物的长期保存。政策手段,例如《全球植物保护战略》(2011-2020年),应回应证据基础,并促进热带和温带植物的低温保存的实施。

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