INVESTIGADORES
COLLINS Pablo Agustin
artículos
Título:
A geometric morphometric analysis of two sympatric species of Family Aeglidae (Crustacea, Decapoda, Anomura).
Autor/es:
GIRI F.; COLLINS P.
Revista:
ITALIAN JOURNAL OF ZOOLOGY
Editorial:
TAYLOR & FRANCIS LTD
Referencias:
Año: 2004 vol. 71 p. 85 - 88
ISSN:
1125-0003
Resumen:
The crustaceans of the family Aeglidae are endemic to the southern regions of South America. Geometric morphometrics was used to asses differences in size and shape between two sympatric species of the family, A. uruguayana and A. platensis. Eleven landmarks on the dorsal region of the cephalothorax were recorded on 57 adult specimens. Interspecific and intraspecific differences in size and shape were analyzed through univariate and multivariate statistics performed on the generalized procrustes analysis aligned coordinates. Shape differences between A. uruguayana and A. platensis, and between males and females, were readily identifiable along the first and the second relative warp. MANOVA showed these differences to be significant. Intraespecific comparisons also revealed a significant sexual dimorphism in chephalothorax shape. Two-way ANOVA on centroid size did not show any significant difference between species nor between sexual.
