Ábrahám Levente: Válogatott tanulmányok II. - Natura Somogyiensis 9. (Kaposvár, 2006)

Ábrahám Levente: Pit building ant-lion larvae effect to the distribution of the substrate particles in their microhabitats - Tölcsérépítő hangyaleső lárvák hatása a szubsztrát szemcsék eloszlására élőhelyeiken

172 NATURA SOMOGYIENSIS Table 1: The Spearmann rank correlation values of the substrate samples representing the sampling sites (rp) compared by pairs TO BO LO NO TP BP ZP NP KP TO BO 0.801 LO 0.687 0.946 NO 0.323 0.659 0.814 TP 1.000 0.801 0.687 0.323 BP 0.778 0.994 0.970 0.690 0.778 ZP 0.139 -0.242 -0.485 -0.723 0.139 -0.325 NP 0.168 -0.180 -0.419 -0.619 0.168 -0.262 0.952 KP 0.108 -0.216 -0.407 -0.762 0.108 -0.262 0.868 RP 0.205 -0.283 -0.440 -0.539 0.205 -0.347 0.873 0.766 p=0,05 R=0.738; gray cells-ns tplO Ll pe3 LI ре Lips L2pe3 L2pe L2ps L3 pe3 L3 ре L3 ps sampling site Figure 4: Particle size distribution in open habitat (sand) at Bélavár, plotted against the distance from the pit and the larvae stages Sand samples 3 cm from the pit (pe3), from the edge of the pit (pe) and also from the pit side (ps) were taken. After sifting through the samples diagrams of the particle size distribution was made for each sampling site representing the different microhabitats (open, protected) the different substrate qualities (sand, loess, clay) and the three larvae stages. One of each type is presented below (Figures 4-7). From the percentage distribution of the substrate particle size, it can be concluded that there are significant differences between the particle size of the sample taken 3 cm away from the pit (pe3) from the edge of the pit (pe), from the pit's side (ps) and between the reference point (rp) (Figures 4-7).