Biogeography and disparity within the genus Cryptocandona (Crustacea, Ostracoda)

Citation
A. Baltanas et al., Biogeography and disparity within the genus Cryptocandona (Crustacea, Ostracoda), VIE MILIEU, 50(4), 2000, pp. 297-310
Citations number
84
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Environment/Ecology
Journal title
VIE ET MILIEU-LIFE AND ENVIRONMENT
ISSN journal
0240-8759 → ACNP
Volume
50
Issue
4
Year of publication
2000
Pages
297 - 310
Database
ISI
SICI code
0240-8759(200012)50:4<297:BADWTG>2.0.ZU;2-5
Abstract
Information on carapace morphology of eight Recent ostracod species of the genus Cryptocandona (Candoninae, Candonidae, Cypridoidea), living in surfac e and groundwater habitats in Europe and Japan, allows to appreciate their pattern of disparity (i.e. morphological diversity). A morphometric analysi s of the outlines of adult female valves using Elliptic Fourier Analysis is performed on individuals belonging to geographically separated populations . The data, displayed in a multidimensional morphospace, is analysed using Principal Component Analysis. It is shown that carapace shape patterns of t he various species overlap within the Cryptocandona morphospace. The degree of morphological change of the carapaces of Cryptocandona species is evalu ated within the context of their geographical and ecological distribution. Comparative data on various Candoninae lineages facilitate discussion on th e limits of allocation of fossil candonines to the genus Cryptocandona usin g only carapace-shape criteria.