Allometry and Ontogeny in the Vertebral Column of Southern Hemisphere Dolphins: a 3D Morphofunctional Approach

作者: María Constanza Marchesi , Matías S. Mora , Silvana L. Dans , Rolamdo González-José

DOI: 10.1007/S10914-020-09514-9

关键词:

摘要: Commerson’s dolphin (Cephalorhynchus commersonii), Peale’s (Lagenorhynchus australis), dusky obscurus), and hourglass cruciger) are closely related species occurring in the Southern Hemisphere. Even though they partially sympatric, have evolved towards diverse foraging strategies, prey, habitat preferences. Size variation occurs both among within species. Our goal was to study allometric patterns ontogenetic trajectories vertebral column of these dolphins their ecology. We choose nine functionally homologous vertebrae each digitized five different tridimensional configurations, containing 28 41 landmarks depending on functional region under analysis. explored levels allometry (static, ontogenetic, evolutionary) using multivariate regressions shape vs. log-transformed centroid size. compared regression vectors evidence differences growth patterns. Finally, we calculated Procrustes distances configurations determine timing shifts. Of studied species, When Lagenorhynchus showed highest degrees allometry, static ontogenetic. The macroevolutive trends indicate a high degree evolutionary morphological change, which could be associated with rapid radiation proposed for group. This is first time that changes small cetaceans by means 3D geometric morphometrics.

参考文章(43)
Colin Goodall, Procrustes methods in the statistical analysis of shape Journal of the royal statistical society series b-methodological. ,vol. 53, pp. 285- 321 ,(1991) , 10.1111/J.2517-6161.1991.TB01825.X
Philipp Gunz, Philipp Mitteroecker, Sonja Windhager, Katrin Schaefer, A brief review of shape, form, and allometry in geometric morphometrics, with applications to human facial morphology Hystrix-italian Journal of Mammalogy. ,vol. 24, pp. 59- 66 ,(2013) , 10.4404/HYSTRIX-24.1-6369
ANDERS GALATIUS, Paedomorphosis in two small species of toothed whales (Odontoceti): how and why? Biological Journal of The Linnean Society. ,vol. 99, pp. 278- 295 ,(2010) , 10.1111/J.1095-8312.2009.01357.X
Fred L. Bookstein, Morphometric tools for landmark data : geometry and biology Biometrics. ,vol. 48, pp. 1301- ,(1992) , 10.1017/CBO9780511573064
M. Viglino, D. A. Flores, M. D. Ercoli, A. Álvarez, Patterns of morphological variation of the vertebral column in dolphins Journal of Zoology. ,vol. 294, pp. 267- 277 ,(2014) , 10.1111/JZO.12177
Carolina Paschetta, Soledad De Azevedo, Marina González, Mirsha Quinto-Sánchez, Celia Cintas, Hugo Varela, Jorge Gómez-Valdés, Gabriela Sánchez-Mejorada, Rolando González-José, Shifts in subsistence type and its impact on the human skull's morphological integration American Journal of Human Biology. ,vol. 28, pp. 118- 128 ,(2016) , 10.1002/AJHB.22746
Emily A. Buchholtz, Elizabeth M. Wolkovich, Richard J. Cleary, VERTEBRAL OSTEOLOGY AND COMPLEXITY IN LAGENORHYNCHUS ACUTUS (DELPHINIDAE) WITH COMPARISON TO OTHER DELPHINOID GENERA Marine Mammal Science. ,vol. 21, pp. 411- 428 ,(2005) , 10.1111/J.1748-7692.2005.TB01241.X
Valentina Segura, Francisco Prevosti, A quantitative approach to the cranial ontogeny of Lycalopex culpaeus (Carnivora: Canidae) Zoomorphology. ,vol. 131, pp. 79- 92 ,(2012) , 10.1007/S00435-012-0145-4
Eulalia Banguera-Hinestroza, Azusa Hayano, Enrique Crespo, A Rus Hoelzel, None, Delphinid systematics and biogeography with a focus on the current genus Lagenorhynchus: Multiple pathways for antitropical and trans-oceanic radiation Molecular Phylogenetics and Evolution. ,vol. 80, pp. 217- 230 ,(2014) , 10.1016/J.YMPEV.2014.08.005