Dear all,
I have a question concerning the analysis of landmark and semilandmark data
in fly heads. So far I placed landmarks on 2D images. Some of these actually
represent semilandmarks. I used tps Util ("Make Sliders File"; see attched
picture) to generate a sliders file. In the attached picture, 1 and 8 are
landmarks and 2-7 in between them are supposed to be semilandmarks.
My first question is: Is this the right way to transform landmarks into
semilandmarks?
My second question is: What is the best (most accepted, straight-forward)
way to further analyze this data? I am mainly interested in shape
differences between different groups (2 species + hybrids, males and
females). Which programs should be used? I saw that geomorph can handle this
kind of data. Any UI software? Are there any suggestions for good tutorials?
Thanks a lot for any recommendation and help!
Cheers,
Nico
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Nico Posnien
Georg-August-University Göttingen
Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology
Department of Developmental Biology
Ernst-Caspari-Haus (GZMB)
Justus-von-Liebig-Weg 11
37077 Göttingen
Germany
Phone: +49 (0) 55139 20817
E-mail: [email protected]
web: http://www.evolution.uni-goettingen.de/posnienlab/index.html
web: http://www.uni-goettingen.de/en/44993.html
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