Abstract

The study was conducted in nine habitats representing different ecosystems in Kovada Lake Natural Park basin located in Isparta province. Pitfall traps were used for collecting various insects during 2007-2008 by regular weekly samplings. Consequently, a total of 64 insect species belonging to 15 families and 4 orders were recorded from the natural park basin. According to Shannon-Wiener and Simpson indices of diversity, Forest Coast Habitat was the most diverse in 2007. Analyses using Jaccard’s similarity index indicated a high similarity between habitats Meadow Area and Maquis habitats. In the latter year (2008), the Shannon-Wiener and Simpson index values showed higher diversity for Forest Coast Habitat again. As for the similarity comparison, Fruit Plantation and Meadow Area habitats were determined as the most closed ones. According to the two-year data, the most diverse habitats were determined as Forest Coast and Open Area, respectively, using Shannon-Wiener and Simpson indices. Similar to species diversity, Maquis and Open Area habitats were found the most closed ones as a result of Jaccard’s similarity analyses.

Key words: Kovada Lake, pitfall trap, insects, Shannon-Wiener, Simpson, Jaccard indices.