Leaf beetles were studied in the Kovada Lake National Park (KL) and Kızıldag National Park (KD) in Isparta province (Turkey) during April-October in 2009 and 2010. A total of 131 leaf beetle species were collected. In total, 88 species were detected from KL and 95 species from KD. Adult activity periods of the collected leaf beetle species were determined and their frequency and dominancy values were provided. The results showed slight differences in terms of the seasonal activity of the species in the two national parks. According to Shannon-Wiener index, the highest leaf beetle diversity among the studied months was found in early June (H': 4.23) and late May (H': 4.17). Sørensen similarity index of the species according to different seasonal periods showed three distinct seasonal periods: a) early April, b) late April to early July, c) late July to late October. Almost all leaf beetles showed a seasonal distribution, with the highest dominance during spring and early summer. The main reason for these different seasonal activities is that leaf beetle species are related to the quality and availability of host-plants.
Leaf beetle species composition, diversity and community structure were investigated and compared among three different habitat types (herbaceous open area, forest area without shrubs, forest area with shrubs) included in Kovada Lake (KL) and Kızıldağ (KD) national parks in Isparta province, at the Mediterranean region of Turkey. In total, 132 leaf beetle species (88 from KL and 96 from KD) belonging to ten subfamilies were collected. Spatial distribution of the leaf beetles and estimated species number were compared between study sites and some environmental factors affecting the determined species were analyzed. The highest leaf beetle diversity among the habitat types was in the forest areas with abundant shrubby understory at the KL with diversity values of 2.67 (Shannon–Wiener index) and 0.87 (Simpson index). The most similar habitats in terms of the leaf beetle communities were herbaceous open areas at both national parks with similarity values 50% (Sørensen index) and 34% (Jaccard index). Nonparametric estimators ICE, Chao2, Jackknife1 and Jackknife2 show that the percentages of the detected leaf beetle species during field surveys in the KL were between 85% and 93%, and in the KD were between 67% and 78%. Canonical correspondence analysis indicates that the most effective environmental variables on the leaf beetle species diversity were covers of the herbaceous and tree layers. Also, these results show that the most important environmental variable affecting the leaf beetle species diversity was floristic structure of the sites.
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