Neonicotinoids interfere with specific components of navigation in honeybees.

Three neonicotinoids, imidacloprid, clothianidin and thiacloprid, agonists of the nicotinic acetylcholine receptor in the central brain of insects, were applied at non-lethal doses in order to test their effects on honeybee navigation. A catch-and-release experimental design was applied in which fee...

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Autores principales:	Johannes Fischer, Teresa Müller, Anne-Kathrin Spatz, Uwe Greggers, Bernd Grünewald, Randolf Menzel
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e4af8edb1c76452c9fbbda37396dc834
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spelling	oai:doaj.org-article:e4af8edb1c76452c9fbbda37396dc8342021-11-18T08:27:25ZNeonicotinoids interfere with specific components of navigation in honeybees.1932-620310.1371/journal.pone.0091364https://doaj.org/article/e4af8edb1c76452c9fbbda37396dc8342014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24646521/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Three neonicotinoids, imidacloprid, clothianidin and thiacloprid, agonists of the nicotinic acetylcholine receptor in the central brain of insects, were applied at non-lethal doses in order to test their effects on honeybee navigation. A catch-and-release experimental design was applied in which feeder trained bees were caught when arriving at the feeder, treated with one of the neonicotinoids, and released 1.5 hours later at a remote site. The flight paths of individual bees were tracked with harmonic radar. The initial flight phase controlled by the recently acquired navigation memory (vector memory) was less compromised than the second phase that leads the animal back to the hive (homing flight). The rate of successful return was significantly lower in treated bees, the probability of a correct turn at a salient landscape structure was reduced, and less directed flights during homing flights were performed. Since the homing phase in catch-and-release experiments documents the ability of a foraging honeybee to activate a remote memory acquired during its exploratory orientation flights, we conclude that non-lethal doses of the three neonicotinoids tested either block the retrieval of exploratory navigation memory or alter this form of navigation memory. These findings are discussed in the context of the application of neonicotinoids in plant protection.Johannes FischerTeresa MüllerAnne-Kathrin SpatzUwe GreggersBernd GrünewaldRandolf MenzelPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 3, p e91364 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Johannes Fischer Teresa Müller Anne-Kathrin Spatz Uwe Greggers Bernd Grünewald Randolf Menzel Neonicotinoids interfere with specific components of navigation in honeybees.
description	Three neonicotinoids, imidacloprid, clothianidin and thiacloprid, agonists of the nicotinic acetylcholine receptor in the central brain of insects, were applied at non-lethal doses in order to test their effects on honeybee navigation. A catch-and-release experimental design was applied in which feeder trained bees were caught when arriving at the feeder, treated with one of the neonicotinoids, and released 1.5 hours later at a remote site. The flight paths of individual bees were tracked with harmonic radar. The initial flight phase controlled by the recently acquired navigation memory (vector memory) was less compromised than the second phase that leads the animal back to the hive (homing flight). The rate of successful return was significantly lower in treated bees, the probability of a correct turn at a salient landscape structure was reduced, and less directed flights during homing flights were performed. Since the homing phase in catch-and-release experiments documents the ability of a foraging honeybee to activate a remote memory acquired during its exploratory orientation flights, we conclude that non-lethal doses of the three neonicotinoids tested either block the retrieval of exploratory navigation memory or alter this form of navigation memory. These findings are discussed in the context of the application of neonicotinoids in plant protection.
format	article
author	Johannes Fischer Teresa Müller Anne-Kathrin Spatz Uwe Greggers Bernd Grünewald Randolf Menzel
author_facet	Johannes Fischer Teresa Müller Anne-Kathrin Spatz Uwe Greggers Bernd Grünewald Randolf Menzel
author_sort	Johannes Fischer
title	Neonicotinoids interfere with specific components of navigation in honeybees.
title_short	Neonicotinoids interfere with specific components of navigation in honeybees.
title_full	Neonicotinoids interfere with specific components of navigation in honeybees.
title_fullStr	Neonicotinoids interfere with specific components of navigation in honeybees.
title_full_unstemmed	Neonicotinoids interfere with specific components of navigation in honeybees.
title_sort	neonicotinoids interfere with specific components of navigation in honeybees.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/e4af8edb1c76452c9fbbda37396dc834
work_keys_str_mv	AT johannesfischer neonicotinoidsinterferewithspecificcomponentsofnavigationinhoneybees AT teresamuller neonicotinoidsinterferewithspecificcomponentsofnavigationinhoneybees AT annekathrinspatz neonicotinoidsinterferewithspecificcomponentsofnavigationinhoneybees AT uwegreggers neonicotinoidsinterferewithspecificcomponentsofnavigationinhoneybees AT berndgrunewald neonicotinoidsinterferewithspecificcomponentsofnavigationinhoneybees AT randolfmenzel neonicotinoidsinterferewithspecificcomponentsofnavigationinhoneybees
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Neonicotinoids interfere with specific components of navigation in honeybees.

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