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https://biore.bio.bg.ac.rs/handle/123456789/3513
Title: | Paedogenesis in European newts (Triturus: Salamandridae): Cranial morphology during ontogeny | Authors: | Ivanović, Ana Kalezić, Miloš |
Keywords: | cranial ontogeny;metamorphosis;paedo-genesis;Triturus;newts;salamanders | Issue Date: | Feb-2000 | Journal: | Journal of Morphology | Abstract: | A cross-sectional analysis using different ontogenetic stages (larvae, juveniles, paedotypic, and metamorphic adults) of the smooth newt, Triturus vulgaris, and the alpine newt, T.alpestris, revealed a broad spectrum of perennibranchiation influences on cranial ontogeny in European newts, more pronounced than previously thought. These influences included marked variation in ossification levels, pronounced morphometric variability of many cranial elements, and considerable skull shape changes in the transition from larvae to the adult stage. In comparison with metamorphosed individuals, paedotypic newts had a higher level of variability in both individual cranial traits and cranial shape changes. Sexual size difference of the skull traits was mostly negligible, especially in comparison to the influence of paedogenesis. The main changes in cranial shape of the European newts occurred during metamorphosis. Cranial morphological organization in the majority of examined paedotypes corresponds to cranial organization at late larval stages prior to metamorphosis or at the onset of metamorphosis. |
URI: | https://biore.bio.bg.ac.rs/handle/123456789/3513 | DOI: | 10.1002/(SICI)1097-4687(200002)243:2<127 |
Appears in Collections: | Journal Article |
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