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Vertebral number is highly evolvable in salamanders and newts (family Salamandridae) and variably associated with climatic parameters Naturalis
Arntzen, J.W.; Beukema, W.; Galis, F.; Ivanović, A..
In vertebrates, the relative proportion of the number of trunk and caudal vertebrae is an important determinant of body shape. While among amphibians frogs and toads show low variation in vertebrae numbers, in salamanders the numbers of trunk and caudal vertebrae vary widely, giving rise to phenotypes in the range from short-bodied and long-tailed to long-bodied and short-tailed. We analysed vertebral numbers in the family Salamandridae in a phylogenetic context and calculated the relationship between vertebral changes and changes in climate and other environmental parameters. A significant association was found between morphological change with precipitation and temperature. However, annual precipitation affected the two main groups of salamandrid...
Tipo: Article / Letter to the editor Palavras-chave: Ancestral character states; Body shape; Climatic niche; Comparative method; Phylogeny; Vertebral column; 42.82.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/533923
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