Multidimensional phenotyping (with special reference to Microtus arvalis Pallas, 1779 and M. Socialis Pallas, 1773)

Factor analysis of common and social voles morphological variability was given for 17 morphological features. According to the results of such analysis in vole samples, it was found that 85.4% variability of the majority morphological features for common vole and 88.6% the same one in case of social...

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Bibliographic Details
Published in:Studia Biologica
Main Authors: V. M. Peskov, I. O. Synyavska
Format: Article in Journal/Newspaper
Language:English
Ukrainian
Published: Львівський національний університет імені Івана Франка 2013
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Online Access:https://doi.org/10.30970/sbi.0702.285
https://doaj.org/article/b56b73a6e241436b9d263a0a75dfccf0
Description
Summary:Factor analysis of common and social voles morphological variability was given for 17 morphological features. According to the results of such analysis in vole samples, it was found that 85.4% variability of the majority morphological features for common vole and 88.6% the same one in case of social vole have been described by three first’s principal components (PC1–PC3). In both vole species first principal component characteri­zes the age variability by general size of the body, and second and third components – body proportions. A definition of voles biological age might be used of the body general size and proportions, mass of testes (reproductive status) and thymus (capacity for subsequent growth). 2 groups of males common vole and 8 groups of males of social vole of different biological age was identified by the multidimensional phenotyping. It was shown that biodiversity of social vole males is significantly higher in comparison with the common vole. This could be explained by the fact that physiological and reproductive activity was higher in Microtus socialis comparing with M. arvalis.