20.500.12556/DiRROS-21679 Coumaphos affects food transfer between workers of honeybee Apis mellifera We investigated whether coumaphos, an organophosphate used to control the parasitic mite Varroa destructor, affects trophallaxis in honeybees. Donors were treated with coumaphos 1 h before experiments. In this, uncontaminated food was transferred from donors to recipients. The amount of food transferred was measured (a) directly by weighing food or (b) indirectly by the number of recipients that died due to insufficient trophallaxis. A large reduction in the amount of transferred food was observed when the donors received 5 μg of coumaphos 1 h prior to the experiment. High mortality was observed among the recipients that were fed by donors treated with 2 or 5 μg of coumaphos indicating insufficient food transfer. Demonstrated side effects of coumaphos on trophallaxis could reduce distribution of this systemic agent in the colony and decreases its efficacy. The described assays are feasible and could be a useful tool to test the effects of pesticides on trophallaxis. trophallaxis social behaviour food true false true Angleški jezik Ni določen Neznano 2025-03-12 10:41:59 2025-03-12 10:41:59 2025-03-13 03:52:38 0000-00-00 00:00:00 2012 0 0 str. 465-470 no. 4 Vol. 43 2012 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2011-12-16 595.799 0044-8435 10.1007/s13592-011-0113-x 2500175 http://www.springerlink.com/content/f31184642p856274/fulltext.pdf 1 3ee8efbd-ff26-11ef-88ed-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31077 RAZ_Bevk_Danilo_2012.pdf RAZ_Bevk_Danilo_2012.pdf 1 C4694496FE8A016A5579C37841099F94 598c67d8fb2b9d146d915bd1e54770eb2c804306747e90acfe35f05f7ce0b9ea 5617238b-ff26-11ef-88ed-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31078 https://doi.org/10.1007/s13592-011-0113-x 0 5e8c1fc2-ff26-11ef-88ed-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31079 Nacionalni inštitut za biologijo 0 0 0