Carapace shape of some aeglid crabs: plasticity at different levels

Geometric 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 evol...

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Autores principales:	Metri,Rafael, Oliveira,Aline Rossi de
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2016
Materias:	Aeglidae Crustacea adaptation carapace shape morphometric analysis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000300003
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spelling	oai:scielo:S0718-560X20160003000032016-10-03Carapace shape of some aeglid crabs: plasticity at different levelsMetri,RafaelOliveira,Aline Rossi de Aeglidae Crustacea adaptation carapace shape morphometric analysis Geometric 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.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.44 n.3 20162016-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000300003en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Aeglidae Crustacea adaptation carapace shape morphometric analysis
spellingShingle	Aeglidae Crustacea adaptation carapace shape morphometric analysis Metri,Rafael Oliveira,Aline Rossi de Carapace shape of some aeglid crabs: plasticity at different levels
description	Geometric 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.
author	Metri,Rafael Oliveira,Aline Rossi de
author_facet	Metri,Rafael Oliveira,Aline Rossi de
author_sort	Metri,Rafael
title	Carapace shape of some aeglid crabs: plasticity at different levels
title_short	Carapace shape of some aeglid crabs: plasticity at different levels
title_full	Carapace shape of some aeglid crabs: plasticity at different levels
title_fullStr	Carapace shape of some aeglid crabs: plasticity at different levels
title_full_unstemmed	Carapace shape of some aeglid crabs: plasticity at different levels
title_sort	carapace shape of some aeglid crabs: plasticity at different levels
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000300003
work_keys_str_mv	AT metrirafael carapaceshapeofsomeaeglidcrabsplasticityatdifferentlevels AT oliveiraalinerosside carapaceshapeofsomeaeglidcrabsplasticityatdifferentlevels
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Carapace shape of some aeglid crabs: plasticity at different levels

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