论文标题
量化濒危物种的灭绝概率用于系统发育保护优先级，可能不像敏感
Quantifying extinction probabilities of endangered species for phylogenetic conservation prioritization may not be as sensitive as might be feared
论文作者
论文摘要
在这项研究中，我们关注的是，从一组濒危物种中选择的总体问题是K物种的一个子集以保护优先级。在这里，保护s物种的兴趣是通过集合T的预期系统发育多样性（EPD）评估的，该集合T是一种广泛使用的标准，用于测量与T相关的预期的进化历史。我们认为，受保护物种的存活率得到了确保，并且相反，有未构成物种的灭绝风险。如果已知未受保护的物种的灭绝概率，但这些概率通常不容易量化，则可以通过贪婪类型的方法很容易解决问题。我们在本注中表明，归因于证明的灭绝概率的精确值的选择尊重每个物种的损害等级，这并不像对所考虑的问题那样挑剔。这些概率的值对要保护的物种的选择有明显的影响，但对由此产生的EPD有一点影响。更确切地说，如果T1和T2是对应于两种情况（两种不同的概率集）的两个最佳子集，则T1和T2的EPDS的EPD，以第一种情况或第二种情况的概率或第二种情况的概率计算得出。
In this study we are concerned with the general problem of choosing from a set of endangered species T a subset S of k species to protect as a priority. Here, the interest to protect the species of S is assessed by the resulting expected phylogenetic diversity (ePD) of the set T, a widely used criterion for measuring the expected amount of evolutionary history associated with T. We consider that the survival of the protected species is assured and, on the contrary, that there is a risk of extinction for the unprotected species. The problem is easy to solve by a greedy type method if the extinction probabilities of the unprotected species are known but these probabilities are generally not easy to quantify. We show in this note that the choice of the precise values attributed to the extinction probabilities-provided it respects the rank of imperilment of each species-is not as decisive as might be feared for the considered problem. The values of these probabilities have a clear impact on the selection of the species to be protected but a little impact on the resulting ePD. More precisely, if T1 and T2 are the two optimal subsets of species corresponding to two scenarios (two different sets of probabilities) the ePDs of T1 and T2 , calculated with the probabilities of the first scenario-or with the probabilities of the second scenario-are not very different.
