Ecología reproductiva de Aurivela tergolaevigata (Teiidae) en el monte del noroeste de Argentina: efectos de las variaciones ambientales interanuales

Aurivela tergolaevigata inhabits open areas of the Monte biome, and its reproductive biology is scarcely known. Due to the high rainfall interannual variability in this biome, I studied its reproductive phenology, fat body cycle and fertility during two consecutive years. The annual activity period...

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Detalles Bibliográficos
Autor principal: Gallardo, Gabriela A.
Formato: Articulo
Lenguaje:Español
Publicado: 2019
Materias:
Ciencias Naturales
Reproducción
variables climáticas
América del Sur
lagartija cola de látigo
regiones templadas
reproduction
climatic variables
whiptail lizards
temperate regions
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/74850
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-74850
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Naturales
Reproducción
variables climáticas
América del Sur
lagartija cola de látigo
regiones templadas
reproduction
climatic variables
whiptail lizards
temperate regions
spellingShingle Ciencias Naturales
Reproducción
variables climáticas
América del Sur
lagartija cola de látigo
regiones templadas
reproduction
climatic variables
whiptail lizards
temperate regions
Gallardo, Gabriela A.
Ecología reproductiva de Aurivela tergolaevigata (Teiidae) en el monte del noroeste de Argentina: efectos de las variaciones ambientales interanuales
topic_facet Ciencias Naturales
Reproducción
variables climáticas
América del Sur
lagartija cola de látigo
regiones templadas
reproduction
climatic variables
whiptail lizards
temperate regions
description Aurivela tergolaevigata inhabits open areas of the Monte biome, and its reproductive biology is scarcely known. Due to the high rainfall interannual variability in this biome, I studied its reproductive phenology, fat body cycle and fertility during two consecutive years. The annual activity period of A. tergolaevigata goes from early spring (October) to the end of summer (March). The size at which they reach reproductive maturity was the same for males and females (LHC = 49 mm). The spermatogenic cycle was continuous, with higher activity between October and March, but most of them stop spermatogenesis concomitant with the decrease of heliophany in February. Females lay eggs during the most rainy period, prior to summer, when neonates are more abundant. The interannual comparison showed that longer humid conditions extend the receptivity of females and the spermatogenic cycle. Males and females storage lipids in the abdominal fat bodies by the end of the reproductive period. Females produce from one to three eggs per litter, according to body size. This study shows that A. tergolaevigata has the plasticity to extend the reproductive activity if environmental conditions are favorable; this has been also observed in other phylogenetically close species.
format Articulo
Articulo
author Gallardo, Gabriela A.
author_facet Gallardo, Gabriela A.
author_sort Gallardo, Gabriela A.
title Ecología reproductiva de Aurivela tergolaevigata (Teiidae) en el monte del noroeste de Argentina: efectos de las variaciones ambientales interanuales
title_short Ecología reproductiva de Aurivela tergolaevigata (Teiidae) en el monte del noroeste de Argentina: efectos de las variaciones ambientales interanuales
title_full Ecología reproductiva de Aurivela tergolaevigata (Teiidae) en el monte del noroeste de Argentina: efectos de las variaciones ambientales interanuales
title_fullStr Ecología reproductiva de Aurivela tergolaevigata (Teiidae) en el monte del noroeste de Argentina: efectos de las variaciones ambientales interanuales
title_full_unstemmed Ecología reproductiva de Aurivela tergolaevigata (Teiidae) en el monte del noroeste de Argentina: efectos de las variaciones ambientales interanuales
title_sort ecología reproductiva de aurivela tergolaevigata (teiidae) en el monte del noroeste de argentina: efectos de las variaciones ambientales interanuales
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/74850
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bdutipo_str Repositorios
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