From oviparity to viviparity: a preliminary note on the morphometric differentiation between oviparous and viviparous species assigned to the genus <i>Liolaemus</i> (Reptilia, Squamata, <i>Liolaemidae</i>)

Embryonic growth requires a considerable internal space in viviparous female lizards and this need for space should be reflected in their external morphometry. External morphological differences associated with the reproductive mode in 12 viviparous and 18 oviparous species of <i>Liolaemus<...

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Autores principales: Cei, José Miguel Alfredo María, Videla, Fernando, Vicente, Luis
Formato: Articulo
Lenguaje:Inglés
Publicado: 2003
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/89657
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id I19-R120-10915-89657
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Zoología
Liolaemus
morphometry
reproductive modes
oviparous
viviparous
spellingShingle Zoología
Liolaemus
morphometry
reproductive modes
oviparous
viviparous
Cei, José Miguel Alfredo María
Videla, Fernando
Vicente, Luis
From oviparity to viviparity: a preliminary note on the morphometric differentiation between oviparous and viviparous species assigned to the genus <i>Liolaemus</i> (Reptilia, Squamata, <i>Liolaemidae</i>)
topic_facet Zoología
Liolaemus
morphometry
reproductive modes
oviparous
viviparous
description Embryonic growth requires a considerable internal space in viviparous female lizards and this need for space should be reflected in their external morphometry. External morphological differences associated with the reproductive mode in 12 viviparous and 18 oviparous species of <i>Liolaemus</i> lizards were identified. Size differences between viviparous and oviparous species were elucidated by axilla-groin/snout-vent relationship. Axilla-groin distance, considered a size estimator of visceral cavity, surpassed 50% of snout-vent length in viviparous females, while it is always less than 50% in oviparous females. This difference between the two reproductive modes is statistically significant.
format Articulo
Articulo
author Cei, José Miguel Alfredo María
Videla, Fernando
Vicente, Luis
author_facet Cei, José Miguel Alfredo María
Videla, Fernando
Vicente, Luis
author_sort Cei, José Miguel Alfredo María
title From oviparity to viviparity: a preliminary note on the morphometric differentiation between oviparous and viviparous species assigned to the genus <i>Liolaemus</i> (Reptilia, Squamata, <i>Liolaemidae</i>)
title_short From oviparity to viviparity: a preliminary note on the morphometric differentiation between oviparous and viviparous species assigned to the genus <i>Liolaemus</i> (Reptilia, Squamata, <i>Liolaemidae</i>)
title_full From oviparity to viviparity: a preliminary note on the morphometric differentiation between oviparous and viviparous species assigned to the genus <i>Liolaemus</i> (Reptilia, Squamata, <i>Liolaemidae</i>)
title_fullStr From oviparity to viviparity: a preliminary note on the morphometric differentiation between oviparous and viviparous species assigned to the genus <i>Liolaemus</i> (Reptilia, Squamata, <i>Liolaemidae</i>)
title_full_unstemmed From oviparity to viviparity: a preliminary note on the morphometric differentiation between oviparous and viviparous species assigned to the genus <i>Liolaemus</i> (Reptilia, Squamata, <i>Liolaemidae</i>)
title_sort from oviparity to viviparity: a preliminary note on the morphometric differentiation between oviparous and viviparous species assigned to the genus <i>liolaemus</i> (reptilia, squamata, <i>liolaemidae</i>)
publishDate 2003
url http://sedici.unlp.edu.ar/handle/10915/89657
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