Recognising mollusc shell contours with enlarged spines: Wavelet vs Elliptic Fourier analyses.
Zoology (Jena)
; 140: 125778, 2020 06.
Article
em En
| MEDLINE
| ID: mdl-32279016
ABSTRACT
Gastropod shells may present large spines and sharp shapes that vary according to environmental, taxonomic, and evolutionary factors. In these cases, classic morphometric methods used to study shell contour might not provide a clear representation of morphological shell based on angular decomposition of contour. The present study analyzed and compared for the first time the robustness of the contour analysis using wavelet transformed and Elliptic Fourier descriptors for gastropod shells including enlarged spines. For that, we analyzed two geographical and ecological separated populations of Bolinus brandaris from the NW Mediterranean Sea. Results showed that contour analysis of gastropod shells with enlarged spines can be analyzed using both methodologies, but the wavelet analysis provided a better local discrimination. From an ecological perspective, shells with spines of different sizes were observed in both localities suggesting a wide plasticity of the species.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Gastrópodes
/
Análise de Ondaletas
/
Exoesqueleto
/
Análise de Fourier
Limite:
Animals
Idioma:
En
Revista:
Zoology (Jena)
Assunto da revista:
BIOLOGIA
Ano de publicação:
2020
Tipo de documento:
Article