Seroprevalence of T. cruzi infection in Latin American pregnant women coming from Bolivia and Paraguay is high. Those women should be screened for T. cruzi to control mother-to-child transmission in non-endemic areas.
RESUMENEn este trabajo se estudia la actividad de Lacerta schreiberí en dos parcelas de Camposagrado (León). En arabas poblaciones se realizaron censos horarios de abril a septiembre. Para calcular el porcentaje de población activa en cada censo, se estimó simultáneamente y por separado para machos, hembras, subadultos y jóvenes el tamño de población en cada parcela.Los machos están más activos en primavera mientras que en verano apenas se ven. Las hembras presentan menor actividad que los machos y apenas se registran en ellas diferencias estacionales. Los subadultos inician tardíamente su actividad anual aunque están muy activos en todos los meses. En jóvenes se registra escasa actividad.Los distintos patrones de actividad encontrados en machos, hembras, subadultos y jóvenes se relacionan con los distintos requerimientos de cada uno de ellos.
SUMMARYPatterns of activity were studied in two populations of Lacerta schreiberí at Camposagrado (León) from april to september 1984. Population estimates were used to compute the proportion of males, females, subadults and youngs observed during censuses. Males were more active during spring (reproductive season) than in summer. Female activity did not vary between seasons. High activity levéis were observed in subadults and activity was very low in youngs during all months.
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