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TRIPHELIO Informe resumido

Project ID: ICA4-CT-2001-10004
Financiado con arreglo a: FP5-INCO 2
País: Portugal

Habitat management strategies for enhancing the activity of key natural enemies in the olive grove ecosystem

Different habitat management strategies were tested in case studies in Portugal (elevated, semi-arid area in Southwest-Europe) and Egypt (North-African desert area) to create ecological infrastructures in the olive grove ecosystem. Created vegetation islands, composed of flowering vegetables in Egypt and of flowering buckwheat/carrot or natural vegetation in Portugal were evaluated for their impact on important groups of beneficial arthropods. The abundance and diversity of these taxa was increased in the treated areas in comparison to plots kept without vegetation.

The omission of soil tillage resulted in the development of natural soil vegetation and modified the composition of the soil fauna. Increasing the secondary vegetation by these measures lead to a significant attraction of the beneficial fauna. Further research on population dynamics of both pest and beneficial species is required to explore a potential long-term effect for sustainable pest control. In Egypt, workers adopted the suggested strategy and used the vegetables for their daily subsistence and local markets. But costs and benefits of such farming practice need to be evaluated in detail.

Also research is focussing on further environmental benefits, potentially arising after increasing the vegetational diversity in the olive grove ecosystem (e.g. prevention of water-run and soil erosion) need to be considered in future studies.

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Campus de Sta.Apolonia
5301-854 BRAGANCA
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