Ábrahám Levente: Biomonitoring a Dráva folyó magyarországi szakasza mentén 2000-2004 - Natura Somogyiensis 7. (Kaposvár, 2005)
Lanszki József: Otter monitoring between 2000 and 2004 in the Drava region (Hungary) - A vidra monitorozás 2000 és 2004 között a Dráva mentén
LANSZKI J.: OTTER MONITORING 173 Table 1. The main parameters of the sample collection. WS - winter and spring, SA - summer and autumn, *under bridges and surroundings, - no sample collection was performed Areas 2000 2000 2001 2001 2002 2002 2003 2003 2004 2004 Line transect Areas WS SA WS SA WS SA WS SA WS SA Line transect Areas Sample size per periods m Monitoring areas: Őrtilos, Drava 15 23 53 68 40 18 90 15 61 18 1800 Dombó canal, Gyékényes 30 24 41 62 36 114 28 42 48 55 600* Lankóci wetland forest 23 13 43 27 28 32 39 0 0 3 2000 Bélavár, backwater 46 104 67 117 86 68 58 54 28 500 Bélavár, Drava 43 99 302 106 153 63 500 Vízvár, Drava 36 20 33 15 80 26 73 26 63 16 1500 Babócsa, backwater 114 26 35 40 46 46 92 52 196 18 1600 Connecting areas Dombó canal, Berzence 47 62 22 52 77 206 42 142 42 200* S.udvarhely, gravel pit ponds 5 0 35 14 70 57 42 51 14 2000 Babócsai stream 53 126 84 40 77 106 90 21 91 9 400 Barcs-Komiósdi stream 9 15 52 112 72 106 58 79 11 200* Barcs, Kis-bóki backwater 4 0 45 20 83 62 32 21 27 5 600 Barcs, Középrigóci ponds 199 64 151 191 120 117 161 248 102 3 2000 Korcsina canal, Lakócsa 31 38 26 0 24 18 3 19 27 200* Table 2. Diet composition of otters living in different habitats in SW Hungary. MA-mammals, Bl-birds, RA-reptiles and amphibians, IV-invertebrates, PL-plants Area MA BI RA Fish rv PL Area Percentage relative frequency Őrtilos, Drava 1.4 5.7 7.2 79.7 6.0 0.1 Dombó canal, Gyékényes 5.2 3.7 29.4 44.6 16.0 1.1 Lankóci forest 7.1 2.4 23.1 48.8 17.3 1.2 Bélavár, Drava 0.2 3.1 9.1 84.8 2.1 0.7 Bélavár, backwater 1.0 1.0 14.4 71.3 11.9 0.5 Vízvár, Drava 2.4 11.1 8.5 67.9 9.3 0.9 Babócsa, backwater 1.0 2.0 13.4 72.8 10.8 0.0 Dombó canal, Berzence 7.0 1.4 10.1 68.4 12.4 1.0 S.udvarhely, g.p.ponds 2.6 0.0 17.9 70.4 8.0 1.2 Babócsai stream 7.8 2.5 14.4 55.3 19.0 0.9 Barcs-Komiósdi stream 4.0 2.3 8.7 62.7 21.6 0.7 Bares, backwater 0.9 1.5 8.2 73.6 15.7 0.2 Bares, ponds 0.7 3.9 9.5 67.3 17.9 0.7 Korcsina canal 1.9 0.0 22.0 32.5 41.7 1.9 Boronka, fish ponds 1.7 2.7 7.6 80.9 6.9 0.4 Fonó, fish pond 1.5 5.9 12.6 66.5 9.2 4.4 Petesmalom, fish ponds 1.1 1.1 4.7 86.0 5.8 1.3 Fonói stream 2.6 1.1 22.9 52.8 18.0 2.8
