IMPACT OF APPLICATION OF ORGANIC FERTILIZERS ON BIODIVERSITY AND SPATIAL STRUCTURE OF FAMILIES COLEOPTERA IN SOUTHWESTERN PART OF THE SLOVAK REPUBLIC PUBLISHEDJana PORHAJAŠOVÁ, Jaroslav NOSKOVIČ, Alena RAKOVSKÁ, Mária BABOŠOVÁ, Terézia ČERYOVÁ
The aim of this work was to evaluate the dynamics of the occurrence of families of order Coleoptera, during the years 2005 and 2006, on the locality Kolíňany, by the earth traps method, which were exposed in the five treatments with application of organic fertilizers: 1st treatment- control variant ; 2nd treatment - 25 t.ha-1 of the manure ; 3rd treatment - 50 t.ha-1 of biosludge; 4th treatment - 50 t.ha-1 of the manure; 5th treatment - 100 t. ha-1 of biosludge. Every year traps in different crops were exposed: 2005– Beta vulgaris and 2006 - Zea mays. During two-years period was within five treatments obtained 25, 616 ex of epigeic individuals. In the year 2005 we obtained 13,744 ex and in the year 2006 the number amounted 11,872 ex. From the stated number of obtained epigeic groups we focus as the dominant group – Coleoptera, which has been determined to individual families. In the year 2005 Coleoptera represented 5,600 ex and in the year 2006 it was 6,496 ex. With respect to evaluation of the year and crop can be concluded that the more appropriate climate and habitat conditions provided the year 2006 with crop of Zea mays. On the basis of the cumulative abundance of families Coleoptera together 15 families was determined. Within the 1st treatment, during two-year period, was obtained occurrence of 7 families, with the number of individuals 2,228 (2005 – 940 ex, 2006 – 1,288 ex), within the 2nd treatment was identified 12 families, with number of exemplars 1,894 (2005 – 1,680 ex, 2006 2,144 ex), in the 3rd treatment occurred 9 families, with total number 1, 736 ex (2005 – 616 ex, 2006 – 1,120 ex), within the 4th treatment was obtained 10 families, with number of 2, 316 ex (2005 – 944 ex, 2006 – 1,372 ex), in the last 5th treatment occurred 11 families, with 1, 992 ex (2005 – 1,420 ex, 2006 – 572 ex). Based on the assessment of dominance of determinate families can be conclude that families Carabidae and Staphylinidae recorded eudominant representation and families Silphidae dominant representation. Other families (Anthicidae, Coccinelidae, Elateridae, Ptiliidae and others) confirmed the occurrence less than 2%, their presence was at recendent respectively subrecendent representation. On the basis of calculated indexes farming system can be evaluated as a homeostatically balanced providing present zoo faun with topical and trophic conditions.
agroecosystems, biodiversity, Coleoptera, Slovak Republic