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El tratamiento de parásitos afecta la inversión materna en los hijos varones
1Institute of Evolutionary Biology, University of Edinburgh, Edinburgh EH9 3JT, UK. tomreed@u.washington.edu
Science (New York, N.Y.)
|August 9, 2008
Resumen
El parasitismo limita las madres.
Área de la Ciencia:
- Ecología Ecología Ecología.
- Biología evolutiva Biología evolutiva.
- Comportamiento animal Comportamiento animal.
Sus antecedentes:
- El parasitismo tiene un impacto significativo en la salud del huésped y actúa como una presión selectiva.
- La condición materna influye en la asignación de sexo de la descendencia, pero el papel del parasitismo es poco estudiado en los vertebrados.
Objetivo del estudio:
- Investigar el impacto del parasitismo en la inversión materna y la relación de sexo de la descendencia en ratas europeas.
- Para determinar si el parasitismo afecta la capacidad de las madres para producir hijos.
Principales métodos:
- Manipulación experimental del parasitismo en una población de aves marinas de larga vida.
- Monitoreo de la condición materna y la relación de sexo de la descendencia.
Principales resultados:
- El parasitismo limitó experimentalmente la capacidad de las madres para criar hijos.
- Este efecto contribuyó a la disminución de la supervivencia de la descendencia más adelante en la temporada de reproducción.
Conclusiones:
- El parasitismo puede sesgar la relación sexual de la descendencia al afectar la inversión materna en los hijos.
- Esto tiene consecuencias significativas a nivel de población para los criadores estacionales como el pez europeo.
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