凯切尔物种多元论的一个重要失误在于没能明确区分物种阶元与物种单元。这样,多元论的物种概念或者没有统一的理论意义,或者是可消除的。物种阶元是一种理论假定,在承认了一个理论假定的前提下,提出物种阶元的多元论问题是不恰当的;物种单元是真实的具体对象,在承认这个前提的情况下,提出实在论与反实在论的问题也是不恰当的。物种多元论,仅当从认识论上来理解时才是可接受的。 An Important Fault of Kecher’s Species Pluralism lies in the inability to clearly distinguish between species and species units. In this way, the concept of pluralism species either with no uniform theoretical significance, or can be eliminated. Species is a kind of theoretical assumptions, in recognition of a theoretical assumption, the proposition of multivariate species of species is not appropriate; the species unit is a real concrete object, in recognition of this premise, put forward the realism The problem with anti-realism is also inappropriate. Species diversity is only acceptable when it comes to epistemology.