Ábrahám Levente (szerk.): Válogatott tanulmányok 13. - Natura Somogyiensis 28. / Miscellanea 13. (Kaposvár, 2016)
Sándor A.–Csikász T-Farkas S.–Rácz T.–Sárospataki M.: Preliminary semi-field study ont he effect of the neonicotinoid containing seed dressings to honeybees as pollinator in sunflower
36 Natura Somogyiensis Results The results obtained during the recording period and their aggregates are presented in Table 1. During the measurements we are collected altogether 19 657 individuals from the 17 isolated net tents. Table 1: The number of bees collected from the tents at different dates and by different genotypes Tent No. 07.12 07.19 07.25 08.02 08.09 £ Genotype 1. 1 387 842 1564 2793 3 313 351 1416 2080 Genotype 2. 5 227 591 1048 1866 7 207 494 1071 1772 Genotype 3. 9 154 284 181 619 11 340 444 554 1338 Genotype 4. 13 208 172 500 880 15 113 134 678 925 Genotype 5. 17 269 321 1334 1924 19 281 406 1121 1808 21 306 175 799 1280 Genotype 6. 23 57 185 242 25 128 291 419 Genotype 7. 27 101 301 402 29 119 412 531 Genotype 8. 31 97 239 336 Genotype 9. 33 78 364 442 £ 2805 4214 10266 580 1792 19657 We can find significant difference between the dates tent-wise irrespective of genotype — Pl.21=8.11E-5***; p23_33=9.72E-4***. Between the dates of the first 11 isolated net tents - 07. 12 and 07. 25; 07. 19. and 07. 25. - we found a significant difference (p] 3 < 0.001 ***; P2,3=0.00542 **). Thereafter we examined the differences between genotypes. Table 2 shows that the genotypes have detectable effect. Our statistical test confirmed this (p=0.018). Female 1. (Tent No. 33) resulted 336 dead bees, while paired with restorers 3638 pieces of individuals (Restorer 1. - Tents No. 5-7) and 1805 pcs (Restorer 2. - Tents No. 13-15). Female 2. with Restorer 1. led to 1957 corpses (Tents No. 9-11), while this in itself was only 442 pcs (Tent No. 33). Finally, in the case when Female 3. paired with Restorer 2., we found 5012 pcs of bees (Tents No. 17-21), while in itself only 933 pieces (Tents No. 27-29.). Similarly, Restorer 1. with the Female 1. (Tents No. 5-7) resulted 3638 pieces, with the Female 2. (Tents No. 9-11) 1957, while Restorer 2. with the Female 1. (Tents No. 13-15) 1805 pieces and with Female 3. (Tents No. 17-21) 5012 pieces of dead bees. Based on these we can see that bee mortality depend on the maternal as well as the restorer line.
