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Recolector de Ciencia Abierta, RECOLECTA
Article . 2002 . Peer-reviewed
License: CC BY
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Recolector de Ciencia Abierta, RECOLECTA
Article . 2002 . Peer-reviewed
License: CC BY
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Osteological differentiation among Iberian Pelodytes (Anura, Pelodytidae).

Authors: Sanchiz, Borja; Tejedo, Miguel; Sánchez-Herráiz, María Jesús;

Osteological differentiation among Iberian Pelodytes (Anura, Pelodytidae).

Abstract

Se analiza la diferenciación morfológica en Pelodytes mediante el análisis comparado de una muestra de elementos óseos desarticulados procedentes de las principales regiones del esqueleto macho adulto. Un conjunto de 35 rasgos interespecíficamente diferenciales, analizada bajo diversos grupos externos, permite inferir que P. ibericus y P. punctatus forman un grupo hermano frente a P. caucasicus. La especie caucásica mantiene una morfología muy primitiva, con sólo 17-23% de estados derivados, en tanto que las especies ibéricas son ambas muy derivadas, con porcentajes superiores al 68 % de los rasgos. Hay poca diferencia entre P. ibericus y P. punctatus en cuanto a su grado relativo de transformación evolutiva, y utilizando a P. caucasicus como grupo externo presentan porcentajes de estados derivados del 45 y 60 % respectivamente. Se calculan las tasas de diferenciación de varios caracteres en darwines, presentando los componentes craneales tasas más altas que los rasgos directamente relacionados con la locomoción. Se describen e identifican en términos de alometrías heterocrónicas diversas trayectorias de crecimiento adulto, diferenciales entre especies. Se han detectado tres factores que permiten agrupar los caracteres en unidades de evolución conjunta. Estos factores son: a) un factor ontogenético producido mediante procesos heterocrónicos, apreciable en una tendencia a la disminución de la osificación; b) una integración morfológica funcional, detectable en los elementos implicados en el tamaño y proporciones del cráneo; y c) un factor ecomorfológico, presumiblemente una respuesta adaptativa, puede inferirse en rasgos relacionados con la robustez de las extremidades.

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Country
Spain
Related Organizations
Keywords

Morphology, Tasas de divergencia, Osteology, Heterochrony, Filogenia, Osteología, Morfología, Heterocronía, Divergence rates, Phylogeny

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green