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Title: | A phylogenetic view on skull size and shape variation in the smooth newt (Lissotriton vulgaris, Caudata, Salamandridae) | Authors: | Ivanović, Ana Sotiropoulos, Konstantinos Üzüm, Nazan Džukić, Georg Olgun, Kurtuluş Cogǎlniceanu, Dan Kalezić, Miloš |
Keywords: | Geometric morphometrics;Morphospace;Phylogenetic signal;Tailed amphibians | Issue Date: | 1-May-2012 | Project: | Diversity of the amphibians and reptiles on the Balkan Peninsula: evolutionary and conservation aspects | Journal: | Journal of Zoological Systematics and Evolutionary Research | Abstract: | In this study, we explore skull size and shape variation in the smooth newt, a taxon with substantial morphological differentiation and complex phylogeographic relations. By projecting phylogenies into the morphospace of the skull shape, we explore the variation in and differentiation of this complex morphological structure within a phylogenetic framework. For these analyses, we used a dataset that covers the most southern part of the species' distribution range, including all conventionally recognized subspecies. The study revealed different patterns of divergence in skull shape between sexes, which is paralleled by intraspecific differentiation. The divergence in dorsal skull shape is concordant with the phylogenetic divergence, as the most diverged clades of the smooth newt (Lissotriton vulgaris kosswigi and Lissotriton vulgaris lantzi) exhibit a skull shape that significantly diverges from the smooth newt's mean shape configuration. The results of this study also indicate that ventral skull portion, which is more directly related to feeding and foraging, shows higher variation between populations than dorsal skull portion, which appears to be less variable and phylogenetically informative. © 2011 Blackwell Verlag GmbH. |
URI: | https://biore.bio.bg.ac.rs/handle/123456789/3192 | ISSN: | 0947-5745 | DOI: | 10.1111/j.1439-0469.2011.00650.x |
Appears in Collections: | Journal Article |
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