Title
Traditional and geometric morphometrics for studying skull morphology during growth in **Mastomys natalensis** (Rodentia: Muridae)Traditional and geometric morphometrics for studying skull morphology during growth in **Mastomys natalensis** (Rodentia: Muridae)
Author
Faculty/Department
Faculty of Sciences. Biology
Research group
Evolutionary ecology group (EVECO)
Publication type
article
Publication
Lawrence, Kan.,
Subject
Biology
Source (journal)
Journal of mammalogy. - Lawrence, Kan.
Volume/pages
92(2011):6, p. 1395-1406
ISSN
0022-2372
ISI
000298490800022
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Geometric morphometrics is a powerful tool for the study of morphological variation that possesses numerous advantages over the more traditional approach based on linear measurements. We analyzed skull morphology, comparing traditional with geometric morphometrics, of 3 different developmental pathways in Mastomys natalensis (Rodentia: Muridae) from a single population. During early development growth patterns were influenced by environmental factors, specifically rainfall pattern, consistent with previous reports that growth trajectories vary according to the amount and distribution of rain. Results confirmed that early growth rate is one of the main determinants of size and shape differences in the skull in the 3 developmental pathways (generation types) of M. natalensis. Other factors, such as food quality and consistency, also could play an important role. Overall, geometric morphometrics appeared more sensitive than the traditional method in detecting variation in skull morphology, but both approaches led to very comparable conclusions. Phenotypic plasticity is an alternative explanation to local adaptations for ecogeographical morphological variation.
E-info
https://repository.uantwerpen.be/docman/iruaauth/96f60b/cbb84143dfe.pdf
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