Studying ontogenetic trajectories using resampling methods and landmark data

Comparative studies of ontogenies play a crucial role in the understanding of the processes of morphological diversification. These studies have benefited from the appearance of new mathematical and statistical tools, including geometric morphometrics, resampling statistics and general linear models...

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Bibliographic Details
Published in:Hystrix 2013-01, Vol.24 (1), p.67
Main Authors: Sheets, H David, Zelditch, Miriam L
Format: Article
Language:English
Subjects:
Information processing
Mathematical models
Morphology
Morphometry
Ontogeny
Statistical analysis
Online Access:Get full text
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Summary:Comparative studies of ontogenies play a crucial role in the understanding of the processes of morphological diversification. These studies have benefited from the appearance of new mathematical and statistical tools, including geometric morphometrics, resampling statistics and general linear models. This paper presents an overview of how resampling methods may be applied to linear models of ontogenetic trajectories of landmark-based geometric morphometric data, to extract information about ontogeny. That information can be used to test hypotheses about the changes (or differences) in rate, direction, duration and starting point of ontogenetic trajectories that led to the observed patterns of morphological diversification.
ISSN:0394-1914
1825-5272
DOI:10.4404/hystrix-24.1-6332