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… 
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  • 1997
A recent criticism that the biological species concept (BSC) unduly neglects phylogeny is examined under a novel modification of coalescent theory that considers multiple, sex-defined genealogical…
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The Modern Evolutionary Synthesis, in its original form, was the first construct of a multifaceted theory that still continues to evolve, as various tenets of the theory have been challenged, modified, and modified.
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It is demonstrated that concepts on the evolutionary process are damaged when species are considered as evolutionary units, and it is shown that the equivalence between evolutionary and taxonomic units may also damage the practice of biological systematization.
Why the phylogenetic species concept?-Elementary.
  • Q. Wheeler
  • Biology, Medicine
    Journal of nematology
  • 1999
TLDR
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.
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TLDR
Viewing species as historically connected populations with unique role brings together the temporal and phenotypic natures of species, providing a clear way to view species both in a time-limited and time-extended way.
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The phylogenetic species concept more accurately describes evolutionary diversity within the paradisaeids family and provides a better theoretical and empirical framework for analysing speciation, historical biogeography and patterns of morphological, behavioral and ecological diversification within this group than does the biological species concept.
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The well supported monophyly of the ribosomal sequences sampled from Coursetia greenmanii suggests that this species has had a long history independent of its close relatives, and evolutionary persistence could be the result of high levels of dispersal limitation in seasonally dry Neotropical vegetation that is rich in cacti and other succulent species.
Mitochondrial DNA evolution and the application of the phylogenetic species concept in the Cicindela dorsalis complex (Coleoptera: Cicindelidae)
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This work tested the application of phylogenetic species concepts to circumscribe polytypic tiger beetle species using the North American Cicindela dorsalis complex as an example and found a deep phylogenetic subdivision was observed between two groups of populations from two different biogeographic regions.
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References

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TLDR
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.
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This paper examines the theoretical and practical status of species relative to two major issues: the recognition of the importance of epigenetic constraints in evolution and the rise of Hennigian…
PHYLOGENETIC SYSTEMATICS AND THE SPECIES PROBLEM
TLDR
Examination of species concepts that focus either on interbreeding or on common descent leads us to conclude that several alternatives are acceptable from the standpoint of phylogenetic systematics but that no one species concept can meet the needs of all comparative biologists.
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TLDR
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PHYLOGENETIC SYSTEMATICS AND SPECIES REVISITED
TLDR
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