Qualitative and Quantitative Components of The Evaluating System of the Arthropods Biodiversity Populations Impact in the Blackcurrant Crops from the South Part of Romania (I)

Abstract

The present paper is reffer to the original research carried out for the first time in Romania in the period spring-autumn 2009 and had the proposed objective the development of an ecological based pest management experimental model on the blackcurrant crops.
 In the first stage of the research the collecting of biological material using specific methods from different structural components (stratifications) of biotopes of the ecosystem upon which follows the identification and the species classifications in pest and useful for the management system proposed.The monitoring performed is referring so to the surveillance of arthropods populations dynamics correlated with the command factors and with share of those factors in the research area.
 The research activities of the stage are including:
 The biological material collecting;
 The present arthropod species identification;
 The arthropods fauna structure and biodiversity highlighting (number of individuals, number of species, density and relative abundance, dominant populations);
 The biodiversity of blackcurrant crops investigated by qualitative and quantitative methods was divided on a preliminary analysis (which will be thorough by the route of testing/experimentation of the ecological management system by specific statistical methods) in the frame of the structure highlight by the vegetation period of the crop.
 The arthropods identified are including:
 Characteristic species of the fauna of the soil level, on the soil or on the low plants (phytophagous, predators, coprophagous, necrophagous and detritophagous);
 Specific pest species;
 Polyphagous species (phytophagous, predators);
 Species without any trophyc correlations with blackcurrant crop, characteristic of surrounding crop with the accidentally presence.
 In the study two experimental surfaces of blackcurrant in which EBPM is applied (plot I and II) in comparison with one check plot with intensive crop management will be investigated.The arthropod populations identified belongs to 5 classes, 15 taxonomic orders, 35 families, 61 genuses and 67 species (plot I) and 5 classes, 17 taxonomic orders, 40 families, 60 genuses and 65 species (plot II).