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| Format: | Recurso digital |
| Langue: | anglais |
| Publié: |
Zenodo
2025
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| Sujets: | |
| Accès en ligne: | https://doi.org/10.5281/zenodo.17766778 |
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- <div>Abstract: The golden ratio (φ ≈ 1.618) is a mathematical constant often purported to appear in biological structures, from plant</div> <div>phyllotaxis to animal proportions. Morphometrics, the quantitative analysis of form, is a cornerstone of phylogenetic and</div> <div>ecological research in parasitology, particularly for lice (Order: Phthiraptera). This review systematically investigates the</div> <div>literature at the intersection of these two fields to determine if φ is a recognized factor in explaining morphometric variability</div> <div>in lice. A systematic search was conducted following PRISMA guidelines across major scientific databases (PubMed, Web of</div> <div>Science, Scopus, Google Scholar) using keywords related to "golden ratio," "morphometrics," and "Phthiraptera." Studies</div> <div>were screened and selected based on pre-defined inclusion criteria focusing on empirical tests of φ in louse morphology. The</div> <div>search identified a significant body of literature on phthirapteran morphometrics (n > 200 relevant studies). However, zero</div> <div>studies were found that explicitly tested for or supported the golden ratio as a determinant of body proportions in lice. The</div> <div>only indirect connection was the use of lice as datasets in phylogenetic studies that employed algorithms referencing φ for</div> <div>tree optimization, not morphological analysis. There is a complete absence of evidence supporting a meaningful relationship</div> <div>between the golden ratio and morphometric variability in lice. Louse morphology is robustly explained by functional</div> <div>adaptation and evolutionary pressures, with no scientific basis for φ as a governing principle. Future research should focus on</div> <div>these established biological drivers rather than seeking universal mathematical ideals.</div>