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dc.creatorMetri,Rafael
dc.creatorOliveira,Aline Rossi de
dc.date2016-07-01
dc.date.accessioned2019-05-03T13:27:58Z
dc.date.available2019-05-03T13:27:58Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000300003
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/88209
dc.descriptionGeometric morphometric techniques were applied for a better comprehension of inter- and intra-specific morphological variability of freshwater aeglid crabs. Carapace morphological patterns were used to address hypothesis regarding 1) the simple existence of local adaptations or 2) actual stable evolutionary features within the lineages studied. Two clades were included in this analysis: the former encompassing the closely related species Aegla castro, A. parana, A. schmitti, and the latter including the closely-related species A. ligulata, A. longirostri and A. inconspicua. Overall, distinct carapace shapes were found not only between species but also among different populations of same species. In some cases, species belonging to distinct, distantly related clades were more similar in carapace morphology than to closely related species of the same clade. This meant that there was no stable carapace morphology pattern for each major lineage. Results suggest that carapace of these crabs is plastic within lineages, although has a stable, unchangeable component readily recognizable by the geometric morphometric analysis at the species level, plus a more plastic component that may change according to the environment in which they inhabit.
dc.formattext/html
dc.languageen
dc.publisherPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceLatin american journal of aquatic research v.44 n.3 2016
dc.subjectAeglidae
dc.subjectCrustacea
dc.subjectadaptation
dc.subjectcarapace shape
dc.subjectmorphometric analysis
dc.titleCarapace shape of some aeglid crabs: plasticity at different levels


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