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Cranial shape evolution of extant and fossil crocodile newts and its relation to reproduction and ecology

Pogoda, Peter; Zuber, Marcus ORCID iD icon 1,2; Baumbach, Tilo 1,2; Schoch, Rainer R.; Kupfer, Alexander
1 Laboratorium für Applikationen der Synchrotronstrahlung (LAS), Karlsruher Institut für Technologie (KIT)
2 Institut für Photonenforschung und Synchrotronstrahlung (IPS), Karlsruher Institut für Technologie (KIT)

Abstract:

The diversity of the vertebrate cranial shape of phylogenetically related taxa allows conclusions on ecology and life history. As pleurodeline newts (the genera Echinotriton, Pleurodeles and Tylototriton) have polymorphic reproductive modes, they are highly suitable for following cranial shape evolution in relation to reproduction and environment. We investigated interspecific differences externally and differences in the cranial shape of pleurodeline newts via two-dimensional geometric morphometrics. Our analyses also included the closely related but extinct genus Chelotriton to better follow the evolutionary history of cranial shape. Pleurodeles was morphologically distinct in relation to other phylogenetically basal salamanders. The subgenera within Tylototriton (Tylototriton and Yaotriton) were well separated in morphospace, whereas Echinotriton resembled the subgenus Yaotriton more than Tylototriton. Oviposition site choice correlated with phylogeny and morphology. Only the mating mode, with a random distribution along the phylogenetic tree, separated crocodile newts into two morphologically distinct groups. Extinct Chelotriton likely represented several species and were morphologically and ecologically more similar to Echinotriton and Yaotriton than to Tylototriton subgenera. ... mehr

Zugehörige Institution(en) am KIT Institut für Photonenforschung und Synchrotronstrahlung (IPS)
Laboratorium für Applikationen der Synchrotronstrahlung (LAS)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 0021-8782, 1469-7580
KITopen-ID: 1000118594
HGF-Programm 56.03.30 (POF III, LK 01) Soft Matter, Health and Life Sciences
Erschienen in Journal of anatomy
Verlag John Wiley and Sons
Band 237
Heft 2
Seiten 285-300
Vorab online veröffentlicht am 15.04.2020
Nachgewiesen in Web of Science
OpenAlex
Scopus
Dimensions
Globale Ziele für nachhaltige Entwicklung Ziel 15 – Leben an Land

Verlagsausgabe §
DOI: 10.5445/IR/1000118594
Veröffentlicht am 25.11.2021
Originalveröffentlichung
DOI: 10.1111/joa.13201
Scopus
Zitationen: 8
Web of Science
Zitationen: 8
Dimensions
Zitationen: 6
Seitenaufrufe: 147
seit 05.05.2020
Downloads: 125
seit 30.11.2021
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