814 resultados para Suelos-Análisis-México-General Terán


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Several factors influencing reproductive success were investigated at a Common Tern colony at Port Colborne, Ontario in 1976. In general three egg clutches hatched better than two egg clutches and early started clutches hatched eggs and fledged chicks better than late clutches; the fledging success of two and three egg clutches was similar. Early clutches took longer to hatch and hatched more synchronously than did late clutches. While hatching success differed with nesting substrate used fledging success' did not* No relationship was found between either incubation attentiveness and reproductive success or between incubation attentiveness and clutch size* At no time did food availability appear to be a factor limiting the successful upbringing of two chick broods. While fCf chicks (i.e. chicks hatching from the last laid eggs of three egg clutches) generally survived and grew poorly relative to their brood mates they grew best when they originated from clutches that hatched relatively asynchronously.

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Tesis (Maestría en Ciencias de la Administración con Especialidaden Finanzas) UANL

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Tesis (Maestría en Ciencias Especialidad en Producción Agrícola) UANL

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Tesis (Maestría en Administración de Empresas con Especialidad en Mercadotecnia) UANL

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Tesis (Maestría en Letras Españolas) UANL

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Tesis (Maestría en Metodología de las Ciencia) UANL

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Tesis (Maestría en Metodología de las ciencias)

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Tesis (Maestría en Metodología de la Ciencia) UANL

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Tesis (Maestría en Enseñanza Superior) UANL

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Tesis (Maestría en Enseñanza Superior) UANL

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Tesis (Maestría en Metodología de la Ciencia) UANL