The price of conserving avian phylogenetic diversity: a global prioritization approach.

The price of conserving avian phylogenetic diversity: a global prioritization approach.
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DOI:
10.1098/rstb.2014.0004
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发表时间:
2015-02-19
期刊:
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子:
--
通讯作者:
Rosindell J
Rosindell J
中科院分区:
其他
文献类型:
--
作者:
Nunes LA;Turvey ST;Rosindell J

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生物多样性的迅速丧失和可用于保护的资金有限,这是一个重大的全球关切。虽然有很多方法可以确定保护的优先顺序,但很少有人将其归结为财务优化问题。我们使用最近公布的鸟类数据对保存不同数量的系统发育多样性(PD)所需的财政资源进行全球分析。我们引入了一种新的优先排序度量(ADEPD),它在一个物种被降级后,在未来的某个时间给出预期的系统发育多样性。与其他指标不同,ADEPD考虑了将一个物种从濒危物种名单降至脆弱物种名单(例如,从国际自然保护联盟红色名单中的濒危物种变为脆弱物种)对未来PD的好处。将ADEPD评分与降低不同物种名录的财务成本数据相结合,为保护提供了一种成本效益优先的方法。我们发现,在最坏的情况下,3915美元的支出可以节省一年的PD,而在最优支出下,1美元可以保留16.7年的PD。我们发现,目前的保护支出模式预计只能保留四分之一的PD,而最优支出可以在相同的总预算下实现。最大化PD只是生物多样性保护更广泛目标中的一种方法,但我们的分析更普遍地强调了在不知情的情况下花费有限的资源所涉及的危险。
The combination of rapid biodiversity loss and limited funds available for conservation represents a major global concern. While there are many approaches for conservation prioritization, few are framed as financial optimization problems. We use recently published avian data to conduct a global analysis of the financial resources required to conserve different quantities of phylogenetic diversity (PD). We introduce a new prioritization metric (ADEPD) that After Downlisting a species gives the Expected Phylogenetic Diversity at some future time. Unlike other metrics, ADEPD considers the benefits to future PD associated with downlisting a species (e.g. moving from Endangered to Vulnerable in the International Union for Conservation of Nature Red List). Combining ADEPD scores with data on the financial cost of downlisting different species provides a cost–benefit prioritization approach for conservation. We find that under worst-case spending $3915 can save 1 year of PD, while under optimal spending $1 can preserve over 16.7 years of PD. We find that current conservation spending patterns are only expected to preserve one quarter of the PD that optimal spending could achieve with the same total budget. Maximizing PD is only one approach within the wider goal of biodiversity conservation, but our analysis highlights more generally the danger involved in uninformed spending of limited resources.
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