Factores que modelan el patrón de minación de hojas en el arbusto Azara microphylla

Laila D. Kazimierski; Alejandro Farji-Brener

doi:10.25260/EA.16.25.3.0.166

Autores/as

Laila D. Kazimierski Centro Atómico Bariloche, CONICET e Instituto Balseiro, S.C. de Bariloche, Argentina.
Alejandro Farji-Brener Centro Regional Bariloche-Universidad Nacional del Comahue y Laboratorio Ecotono, INIBIOMA-CONICET, Argentina.

DOI:

https://doi.org/10.25260/EA.16.25.3.0.166

Resumen

La actividad de los herbívoros puede depender tanto de las características de los recursos como de las interacciones con otros organismos que dañan las hojas. Analizamos el efecto de la dureza de la hoja y la probabilidad de daño foliar sobre el recorrido y la eficiencia de las larvas del minador de hojas en el arbusto Azara microphylla. En comparación con el sector apical, el sector basal de las hojas fue más duro y mostró una probabilidad menor de daño foliar por herbívoros, hongos y/o patógenos. Los minadores tuvieron una actividad mayor en el sector basal, a pesar de que, en general, comenzaban su recorrido en el sector apical (que fue el sitio de mayor oviposición). La eficiencia resultó similar en ambos sectores foliares. Estos resultados sugieren que las interacciones con otros organismos que dañan las hojas cumplen un papel relevante en modelar la actividad forrajera de los minadores e ilustran cómo las construcciones que realizan los individuos pueden ser empleadas para estudiar su ecología y su comportamiento.

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