The Wettstein tesseract: A tool for conceptualising species-rank decisions and illustrating speciation trajectories

Oberprieler, Christoph (2023) The Wettstein tesseract: A tool for conceptualising species-rank decisions and illustrating speciation trajectories. TAXON, 72 (1). pp. 1-7. ISSN 0040-0262, 1996-8175

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Abstract

Genealogy-based species-delimitation approaches resting upon multilocus sequence data aim at arranging organisms into species taxa (the "grouping" step in a classification procedure), but provide no criteria for the subsequent decision of whether these taxa should be acknowledged as species in the Linnaean classification system (the "ranking" step). By integration of genealogical, morphological, ecological, and geographical patterns as proposed by von Wettstein (1898), species-rank decisions can be conceptualised in a reproducible manner and comprehensibly depicted in a four-dimensional hypercube (the herewith introduced "Wettstein tesseract"). Additionally, the Wettstein tesseract provides a tool for illustrating and teaching components and properties of speciation pathways realised in nature.

Item Type: Article
Uncontrolled Keywords: REPRODUCTIVE ISOLATION; POPULATION-STRUCTURE; CLASS DISCOVERY; DELIMITATION; TAXONOMY; INFERENCE; MODEL; ecology; genealogy; geography; morphology; species concepts; speciation; taxonomy
Subjects: 500 Science > 580 Botanical sciences
Divisions: Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften > Group Plant Systematics and Evolution (Prof. Dr. Christoph Oberprieler)
Depositing User: Dr. Gernot Deinzer
Date Deposited: 20 Feb 2024 10:16
Last Modified: 20 Feb 2024 10:16
URI: https://pred.uni-regensburg.de/id/eprint/56861

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