AN AMPLIFICATION OF THE PHYLOGENETIC SPECIES CONCEPT

@article{Nixon1990ANAO,
  title={AN AMPLIFICATION OF THE PHYLOGENETIC SPECIES CONCEPT},
  author={Kevin C Nixon and Quentin Duane Wheeler},
  journal={Cladistics},
  year={1990},
  volume={6}
}
Abstract— The goal of a phylogenetic species concept is to reveal the smallest units that are analysable by cladistic methods and interpretable as the result of phylogenctic history. We define species as the smallest aggregation of populations (sexual) or lineagcs (asexual) diagnosable by a unique combination of character states in comparable individuals (semaphoronts). A character state is an inherited attribute distributed among all comparable individuals (semaphoronts) of the same historical… Expand
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Why the phylogenetic species concept?-Elementary.
  • Q. Wheeler
  • Biology, Medicine
  • Journal of nematology
  • 1999
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This work proposes essentially identical and truly phylogenetic species concepts that permitted the rigorous recognition of species prior to and for the purposes of phylogenetic analysis, yet maintained the integrity of the Phylogenetic Species Concept outside of cladistic analysis. Expand
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References

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The biological concept fails to provide unambiguous criteria for grouping organisms (or for assigning species rank), and as a consequence, biological species may not be monophyletic. Expand
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