Reproductive biology of the amazon lava lizard (tropidurus torquatus) from the wet Chaco of Corrientes (Argentina) : congeneric comparisons of ecotypic and interspecific variations
Herein we describe the reproductive biology of a population of the Amazon Lava Lizard (Tropidurus torquatus (Wied-Neuwied, 1820)) from Corrientes, northeastern Argentina (Wet Chaco). We describe the male and female reproductive cycles, minimum body size for adults, reproductive output, mean relative...
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Autores principales: | , , , , |
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Formato: | Artículo |
Lenguaje: | Inglés |
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Canadian Science Publishing
2021
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Acceso en línea: | http://repositorio.unne.edu.ar/handle/123456789/28590 |
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I48-R184-123456789-28590 |
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record_format |
dspace |
institution |
Universidad Nacional del Nordeste |
institution_str |
I-48 |
repository_str |
R-184 |
collection |
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) |
language |
Inglés |
topic |
reproductive cycle Squamata tropidurid cycle de reproduction squamates tropiduridés |
spellingShingle |
reproductive cycle Squamata tropidurid cycle de reproduction squamates tropiduridés Ortíz, Martín Alejandro Boretto, Jorgelina Mariela Piantoni, Carla Álvarez, Blanca Beatriz Ibargüengoytía, Nora Ruth Reproductive biology of the amazon lava lizard (tropidurus torquatus) from the wet Chaco of Corrientes (Argentina) : congeneric comparisons of ecotypic and interspecific variations |
topic_facet |
reproductive cycle Squamata tropidurid cycle de reproduction squamates tropiduridés |
description |
Herein we describe the reproductive biology of a population of the Amazon Lava Lizard (Tropidurus torquatus (Wied-Neuwied, 1820)) from Corrientes, northeastern Argentina (Wet Chaco). We describe the male and female reproductive cycles, minimum body size for adults, reproductive output, mean relative clutch mass, fat body cycles, and sexual dimorphism. Our results were compared with data on the reproductive biology of Brazilian populations of T. torquatus and congeneric species. In Corrientes, males of T. torquatus exhibited a continuous reproductive cycle, but with annual variation of testicular parameters associated with spermatogenic activity. In contrast, females were reproductive only from winter to summer (July–February), laying at least two clutches each of six eggs, on average, per reproductive season. The relative clutch mass and egg size values in Corrientes were the highest reported for the species. The annual cycle of energy storage (as fat bodies) was inversely correlated with reproductive activity in both sexes. Males differed from females in snout–vent length, head size, interlimb length, and tail length. We observed interpopulational differences in relative clutch mass, egg volume and mass, incubation period and hatching time, and the minimum body size for sexual maturity probably as a result of phenotypic plasticity or adaptation to local environmental conditions and likely both. |
format |
Artículo |
author |
Ortíz, Martín Alejandro Boretto, Jorgelina Mariela Piantoni, Carla Álvarez, Blanca Beatriz Ibargüengoytía, Nora Ruth |
author_facet |
Ortíz, Martín Alejandro Boretto, Jorgelina Mariela Piantoni, Carla Álvarez, Blanca Beatriz Ibargüengoytía, Nora Ruth |
author_sort |
Ortíz, Martín Alejandro |
title |
Reproductive biology of the amazon lava lizard (tropidurus torquatus) from the wet Chaco of Corrientes (Argentina) : congeneric comparisons of ecotypic and interspecific variations |
title_short |
Reproductive biology of the amazon lava lizard (tropidurus torquatus) from the wet Chaco of Corrientes (Argentina) : congeneric comparisons of ecotypic and interspecific variations |
title_full |
Reproductive biology of the amazon lava lizard (tropidurus torquatus) from the wet Chaco of Corrientes (Argentina) : congeneric comparisons of ecotypic and interspecific variations |
title_fullStr |
Reproductive biology of the amazon lava lizard (tropidurus torquatus) from the wet Chaco of Corrientes (Argentina) : congeneric comparisons of ecotypic and interspecific variations |
title_full_unstemmed |
Reproductive biology of the amazon lava lizard (tropidurus torquatus) from the wet Chaco of Corrientes (Argentina) : congeneric comparisons of ecotypic and interspecific variations |
title_sort |
reproductive biology of the amazon lava lizard (tropidurus torquatus) from the wet chaco of corrientes (argentina) : congeneric comparisons of ecotypic and interspecific variations |
publisher |
Canadian Science Publishing |
publishDate |
2021 |
url |
http://repositorio.unne.edu.ar/handle/123456789/28590 |
work_keys_str_mv |
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Repositorios |
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