مرکز منطقه ای اطلاع رساني علوم و فناوري - Comparison of Insect Bio-Diversity Between Organic and Conventional Oil Rose Farming Rosa damascena Miller (Rosales: Rosaceae): Isparta Case

Abstract :

The aim of the study is comparison of diversity, population density and similarity index of insects living in Rosa damascena Miller (Rosales: Rosaceae) (oil rose) gardens managed by rules of organic and conventional farming chosen in Isparta province, Keçiborlu County, Ardıçlı village during 2012. Pitfall traps, knock-down, sweeping and counting with eyes sampling methods were used for sampling of the insect species between April and October where the insect species population density could be found the highest and taken rates of species from pitfall traps compared for statistically significant between organic and conventional oil rose gardens. Finally both agro-ecosystems no pesticide application were used and managed by the rules of organic farming were found different results of insect bio-diversity then another two agro-ecosystems pesticide application were used and managed by the rules of the conventional faming. Shannon-Wiener and Simpson diversity index were found lower in both conventional rose gardens than other 2 organic rose agro-ecosystems while Shannon-evenness were found more stable in organic rose gardens than conventional ones. The data obtained by pitfall traps have given a more precise than the other sampling methods and according to evaluation of pitfall trap, similarity index of two agro-ecosystems managed by conventional farming rules were found 72.38% to each other and these habitats were found the most similar habitats. Besides, sampled insect species belonging to Carabidae, Scarabaeidae, and Tenebrionidae families were declared the first time with this study.