A developmentally descriptive method for quantifying shape in gastropod shells

J. Larsson, A.M. Westram, S. Bengmark, T. Lundh, R.K. Butlin, Journal of The Royal Society Interface 17 (2020).

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Journal Article | Published | English

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Author
Larsson, J.; Westram, Anja MIST Austria ; Bengmark, S.; Lundh, T.; Butlin, R. K.
Department
Abstract
The growth of snail shells can be described by simple mathematical rules. Variation in a few parameters can explain much of the diversity of shell shapes seen in nature. However, empirical studies of gastropod shell shape variation typically use geometric morphometric approaches, which do not capture this growth pattern. We have developed a way to infer a set of developmentally descriptive shape parameters based on three-dimensional logarithmic helicospiral growth and using landmarks from two-dimensional shell images as input. We demonstrate the utility of this approach, and compare it to the geometric morphometric approach, using a large set of Littorina saxatilis shells in which locally adapted populations differ in shape. Our method can be modified easily to make it applicable to a wide range of shell forms, which would allow for investigations of the similarities and differences between and within many different species of gastropods.
Publishing Year
Date Published
2020-02-01
Journal Title
Journal of The Royal Society Interface
Volume
17
Issue
163
Article Number
20190721
ISSN
eISSN
IST-REx-ID

Cite this

Larsson J, Westram AM, Bengmark S, Lundh T, Butlin RK. A developmentally descriptive method for quantifying shape in gastropod shells. Journal of The Royal Society Interface. 2020;17(163). doi:10.1098/rsif.2019.0721
Larsson, J., Westram, A. M., Bengmark, S., Lundh, T., & Butlin, R. K. (2020). A developmentally descriptive method for quantifying shape in gastropod shells. Journal of The Royal Society Interface, 17(163). https://doi.org/10.1098/rsif.2019.0721
Larsson, J., Anja M Westram, S. Bengmark, T. Lundh, and R. K. Butlin. “A Developmentally Descriptive Method for Quantifying Shape in Gastropod Shells.” Journal of The Royal Society Interface 17, no. 163 (2020). https://doi.org/10.1098/rsif.2019.0721.
J. Larsson, A. M. Westram, S. Bengmark, T. Lundh, and R. K. Butlin, “A developmentally descriptive method for quantifying shape in gastropod shells,” Journal of The Royal Society Interface, vol. 17, no. 163, 2020.
Larsson J, Westram AM, Bengmark S, Lundh T, Butlin RK. 2020. A developmentally descriptive method for quantifying shape in gastropod shells. Journal of The Royal Society Interface. 17(163).
Larsson, J., et al. “A Developmentally Descriptive Method for Quantifying Shape in Gastropod Shells.” Journal of The Royal Society Interface, vol. 17, no. 163, 20190721, The Royal Society, 2020, doi:10.1098/rsif.2019.0721.
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2020-04-14
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