Variations in the carapace shape of whip spiders (Arachnida: Amblypygi).

Autor: Réveillion F; Université de Bourgogne Franche Comté, Dijon, France.; Laboratoire Chrono-Environnement, UMR 6249, CNRS, Université Bourgogne Franche-Comté, Besançon, France., Montuire S; Biogéosciences, UMR 6282, CNRS, Université Bourgogne Franche-Comté, Dijon, France.; EPHE, PSL University, Dijon, France., Maquart PO; Medical and Veterinary Entomology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia., Fétiveau C; Société d'Histoire Naturelle de l'Yonne, Villefranche, France., Bollache L; Université de Bourgogne Franche Comté, Dijon, France.; Laboratoire Chrono-Environnement, UMR 6249, CNRS, Université Bourgogne Franche-Comté, Besançon, France.
Jazyk: angličtina
Zdroj: Journal of morphology [J Morphol] 2022 Aug; Vol. 283 (8), pp. 1003-1014. Date of Electronic Publication: 2022 Jun 07.
DOI: 10.1002/jmor.21485
Abstrakt: Morphological studies often need to reference body size to correctly characterise the shape of organisms. In arthropods, the most commonly used reference for this is the length or width of the carapace, thorax, or the prosoma in the case of chelicerates. However, in the case of animals with unlimited growth, such as whip spiders, this measure could be irrelevant if growth is allometric. In this study, we analyse the ontogenetic modifications in prosoma outline shape in whip spiders during growth and compare the differences in shape between species. Differences are important for the relative prosoma width between species and, in the case of Damon medius, during growth in the juvenile stages, whereas the shape remains stable in mature stages. We conclude that a one-dimensional measure (i.e., length or width) suffices for mature specimens of a single species or family, but for larger studies, or when including immature specimens, at least the prosoma area (within the outline shape) should be used as a size estimator.
(© 2022 Wiley Periodicals LLC.)
Databáze: MEDLINE
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