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¿Puede el comportamiento territorial de las hormigas sobre las flores aumentar el éxito reproductivo de sus plantas hospedadoras?

Authors: Gonzálvez, Francisco G.; Rodríguez-Gironés, Miguel Ángel; Miguel, A.; Santamaría, Luis; Corlett, Richard T.;

¿Puede el comportamiento territorial de las hormigas sobre las flores aumentar el éxito reproductivo de sus plantas hospedadoras?

Abstract

En el mutualismo planta-hormiga, mientas que la planta proporciona alimento y hospedaje a la hormiga, ésta ofrece protección a la planta frente a herbívoros. Recientes estudios han puesto de manifiesto la existencia de un conflicto de intereses para la planta ya que los polinizadores podrían evitar aquellas flores en las que hay hormigas patrullando. Actualmente se conoce que muchas flores durante su ántesis emiten repelentes de hormigas permitiendo el acceso de sus polinizadores. En este trabajo exploramos la posibilidad de que la propia hormiga mutualista, concretamente la hormiga tejedora Oecophylla smaragdina, mejore la polinización de Melastoma malabathricum ahuyentando a ladrones de polen tales como la abeja solitaria Nomia strigata y atrayendo polinizadores como abejas carpintero del género Xylocopa spp. Para ello determinamos la eficiencia de Nomia sp. y Xylocopa sp. polinizando flores de M. malabathricum así como su tasa de visita a flores de plantas con y sin hormigas. Debido a una vulnerabilidad diferencial a ser depredado, Nomia forrajeó mayoritariamente plantas sin hormigas mientras que Xylocopa, el polinizador de M. malbathricum, lo hizo principalmente en plantas con colonias de hormiga aumentando el éxito reproductivo de las plantas hospedadoras.

Trabajo presentado en la VIII reunión del grupo de trabajo sobre Ecología y Evolución Floral (ECOFLOR), celebrada en Toledo, España, los días 3 y 4 de febrero de 2011

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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).
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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.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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