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首页> 外文期刊>Philosophical Transactions of the Royal Society of London, Series B. Biological Sciences >Facets of phylodiversity: evolutionary diversification, divergence and survival as conservation targets
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Facets of phylodiversity: evolutionary diversification, divergence and survival as conservation targets

机译：神学大学的方面：作为保护目标的进化多样化，分歧和生存

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摘要

Biodiversity is often described as having multiple facets, including species richness, functional diversity and phylogenetic diversity. In this paper, we argue that phylogenetic diversity itself has three distinct facets-lineage diversification, character divergence and survival time-that can be quantified using distinct branch length metrics on an evolutionary tree. Each dimension is related to different processes of macroevolution, has different spatial patterns and is tied to distinct goals for conserving biodiversity and protecting its future resilience and evolutionary potential. We compared the landscapes identified as top conservation priorities by each of these three metrics in a conservation gap analysis for California, a world biodiversity hotspot, using herbarium data on the biogeography and evolutionary relationships of more than 5000 native plant species. Our analysis incorporated a novel continuous metric of current land protection status, fine-scale data on landscape intactness and an optimization algorithm used to identify complementary priority sites containing concentrations of taxa that are evolutionarily unique, vulnerable due to small range size and/or poorly protected across their ranges. Top conservation priorities included pockets of coastal and northern California that ranked highly for all three phylodiversity dimensions and for species richness, as well as sites uniquely identified by each metric whose value may depend on whether properties such as genetic divergence, high net diversification or independent survival experience are most desirable in an Anthropocene flora.
机译：生物多样性通常被描述为具有多个方面，包括物种丰富性，功能多样性和系统发育多样性。在本文中，我们认为系统发育多样性本身具有三个不同的方面 - 谱系 - 谱系多样化，性质分歧和生存时间 - 可以在进化树上使用不同的分支长度度量来量化。每个维度与宏观的不同过程有关，具有不同的空间模式，并与保护生物多样性和保护其未来的弹性和进化潜力相关联。我们将这三项指标中的每一个与世界生物多样性热点的保护差距分析中的这三项指标中所确定的每个三个指标中确定的景观进行了比较，这些指标在世界生物多样性热点上使用植物标目数据和5000多种原生植物物种的进化关系。我们的分析包括目前土地保护地位的新型连续度量，关于景观完整的细尺寸数据和用于识别互补优先级位点的优化算法，该算法包含进化浓度独特的分类群，由于范围小范围和/或保护不良而易受伤害在他们的范围内。顶级保护优先事项包括沿海和北加州的口袋，这对所有三个神道大学尺寸和物种丰富度进行了高度排名，以及每个度量唯一识别的网站，其价值可能取决于遗传发散，高净多样化或独立生存等特性。在人体植物群中最理想的经验。

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