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Reproducción y ciclo de cuerpos grasos de Liolaemus espinozai Abdala, 2005 (Sauria: Liolaemidae) en Campo El Arenal, Catamarca, Argentina.

Authors: Cabrera, María P; Scrocchi, Gustavo J;

Reproducción y ciclo de cuerpos grasos de Liolaemus espinozai Abdala, 2005 (Sauria: Liolaemidae) en Campo El Arenal, Catamarca, Argentina.

Abstract

El patrón reproductivo es una de las principales características de la historia de vida de los organis- mos. Este patrón depende tanto de historia evolutiva de los organismos como de los factores externos. Se estudió la reproducción de Liolaemus espinozai en Campo El Arenal, Catamarca. Se analizó el ciclo reproductivo y de los cuerpos grasos de machos y hembras y sus relaciones con la temperatura, fotoperíodo y precipitación. La especie es ovípara y exhibe un patrón reproductivo estacional típico de primavera - verano, con ovulación y fecundación de primavera y puesta y eclosión de verano. La actividad reproductiva de las hembras empieza en noviembre con folículos vitelogénicos; desde diciembre pueden observarse huevos en oviducto y a mediados de enero hasta principios de febrero aparecen hembras con oviducto distendido. Los machos presentan actividad desde fines de septiembre con máximo volumen testicular hasta noviembre, luego estos valores descienden hasta su expresión mínima entre enero y marzo. El tamaño de la puesta varió de 2 a 7 huevos y se correlacionó con el tamaño de la hembra indicando una tendencia a que individuos mayores tengan posturas mayores. La especie muestra un patrón con características similares a lo encontrado para especies filogenéticamente cercanas

The reproductive pattern is a characteristic of major importance to understand the life history of a species, which depends of evolutionary history and ecology. We described the reproduction. We analyzed the reproductive and fat bodies cycle in males and females, and its relation with temperature, photoperiod and precipitation. Liolaemus espinozai is an oviparous species with a typical seasonal Spring-Summer reproductive pattern, starting its ovulation and fecundation in Spring, and its oviposition and hatching in Summer. Female reproductive activity begins with yolkled follicles in November; from December to middle January oviductal eggs can be observed and from middle January to early February females show distended oviduct. Male activity begins at the end of September, its testicle volume increases, and reaches the maximum in November. Later, the volume decreases and is minimal between January and March. The number of eggs varies from 2 to 7 and is correlated with the SVL, indicating that bigger females have more eggs. The pattern is similar to that of phylogenetically closer species.

Fil: Scrocchi Manfrini, Gustavo Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina

Fil: Cabrera, María Paula. Fundación Miguel Lillo. Dirección de Zoología; Argentina

Country
Argentina
Keywords

Lagartijas, Oviparas, Lizards, Patrón reproductivo, Oviparous, Reproductive pattern, Temperate climate, https://purl.org/becyt/ford/1.7, Clima templado, Ovíparos, Patron reproductivo, https://purl.org/becyt/ford/1

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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!
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Average
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