Quality structure of the noctuidae family in selected habitats of the agricultural landscape

Abstract

The aim of the study was to compare the Noctuidae moths in three selected farmland environments, using ecological indices. The study was conducted from 2003 to 2006 on fields sown with winter wheat, sugar beets, maize and winter rape plants. The subject of the study was the imago of moth caught by light traps. Light traps (Polish brand) were located at: the Institute of Plant Protection, the Agricultural Research Station in Winna Góra, the Sugar Beet Breeding Research Station in Wiȩcławice and the Institute of Plant Protection in the Poznań research garden. The collected Noctuidae imagines were identified and characterized quantitatively and qualitatively. The Noctuidae imagines were analyzed using Shannon-Weaver's diversity index (H'), Simpson's dominance index (d) and Marczewski-Steinhaus index of similarity (MS %). The results showed a higher similarity between species composition in the agrocenos of Poznań and Wiȩcławice. The smallest diversity of species, reflected in the lowest value of the diversity index and the high value of the dominance index, was observed in the biotic community of Winna Góra which reveals a few Noctuidae, namely: Agrotis segetum (Schiff. et Den.), A. exclamationis (L.), Xestia c-nigrum (L.), and Discestra trifolii (L.).