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(New) Species concepts, species delimitation and the inherent limitations of taxonomy

机译：（新）物种概念，物种定界和分类学的固有局限性

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The species problem, despite decades of heated debates, has not been resolved yet. Recently, two new species concepts have been published, the mitonuclear compatibility species concept and the inclusive species concept. I briefly discuss them, together with a recent attempt at standardizing taxonomic decisions, in the broader framework of what I believe is an inherent limitation of taxonomya??imposing a discrete system on a continuous process (evolution) that leads to fuzzy boundaries in nature. In the light of this, taxonomists, biologists in general and conservationists alike will have to accept the fact that completely nonarbitrary species delimitation is impossible. This has serious ramifications in all disciplines that rely on species, and particularly species counts, as a basic currency for quantitative analyses (ecology, evolutionary biology) and practical decision-making (conservation and environmental policy).
机译：尽管经过数十年的激烈辩论，物种问题仍未得到解决。最近，已经发布了两个新的物种概念，即微核相容性物种概念和包容性物种概念。我简要地讨论了它们，以及最近尝试对分类学决策进行标准化，在我认为是分类学固有的局限性的更广泛的框架中-将离散系统置于导致自然界模糊边界的连续过程（演化）上。有鉴于此，分类学家，生物学家和保护主义者都将不得不接受这样一个事实，即完全非任意物种划界是不可能的。这在所有依赖物种，尤其是物种数量，作为定量分析（生态学，进化生物学）和实际决策（保护和环境政策）的基础货币的学科中都有严重的后果。

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