Abstract:
Importance of olive groves (OG) and natural ecosystems in the Mediterranean is contrasting with low number of the studies of their biodiversity. In order to manage these systems in an environmentally friendly way, more knowledge of the factors affecting the biodiversity is required. The aim of this study was to evaluated relative importance of the agricultural and environmental factors on species richness estimated in the chosen plots by line point method (herbaceous plants), plots of 100 m2 (woody plants) and point count method (breeding birds). Multi model inference approach showed: a) positive relationship between: a1) field size, manure application, soil organic matter and yield and species richness of herbaceous plants; a2) - in organic OG --soil organic matter and woody plant species richness, and field size, soil pH, grass cutting and bird species richness; a3) - in the conventional OG - herbaceous plant species richness and the amount inorganic K application, and b) negative association between: b1) - in the conventional OG - field size and herbicide application, and b2) bird species richness and soil erosion and herbicide applications. |
