Effects of sublethal doses of imidacloprid on young adult honeybee behaviour
Imidacloprid (IMI), a neonicotinoid used for its high selective toxicity to insects, is one of the most commonly used pesticides. However, its effect on beneficial insects such as the honeybee Apis mellifera L is still controversial. As young adult workers perform in-hive duties that are crucial for...
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todo:paper_19326203_v10_n10_p_Gonalons2023-10-03T16:34:31Z Effects of sublethal doses of imidacloprid on young adult honeybee behaviour Goñalons, C.M. Farina, W.M. imidacloprid sucrose imidacloprid imidazole derivative insecticide nitro derivative adult adulthood age agroecosystem animal behavior animal experiment Apis mellifera appetite Article concentration (parameters) controlled study gustatory response score honeybee learning disorder lethal dose memory consolidation memory disorder mortality nonhuman olfactory memory organism colony proboscis extension response rearing reflex scoring system sensorimotor function state dependent learning sublethal dose young adult animal animal behavior bee conditioned reflex drug effects learning memory Animals Appetitive Behavior Association Learning Bees Behavior, Animal Conditioning, Classical Imidazoles Insecticides Memory Nitro Compounds Imidacloprid (IMI), a neonicotinoid used for its high selective toxicity to insects, is one of the most commonly used pesticides. However, its effect on beneficial insects such as the honeybee Apis mellifera L is still controversial. As young adult workers perform in-hive duties that are crucial for colony maintenance and survival, we aimed to assess the effect of sublethal IMI doses on honeybee behaviour during this period. Also, because this insecticide acts as a cholinergic-nicotinic agonist and these pathways take part in insect learning and memory processes; we used IMI to assess their role and the changes they suffer along early adulthood.We focused on appetitive behaviours based on the proboscis extension response. Laboratory reared adults of 2 to 10 days of age were exposed to sublethal IMI doses (0.25 or 0.50ng) administered orally or topically prior to behavioural assessment. Modification of gustatory responsiveness and impairment of learning and memory were found as a result of IMI exposure. These outcomes differed depending on age of evaluation, type of exposure and IMI dose, being the youngest bees more sensitive and the highest oral dose more toxic. Altogether, these results imply that IMI administered at levels found in agroecosystems can reduce sensitivity to reward and impair associative learning in young honeybees. Therefore, once a nectar inflow with IMI traces is distributed within the hive, it could impair in-door duties with negative consequences on colony performance. © 2015 Mengoni Goñalons, Farina. Fil:Farina, W.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_19326203_v10_n10_p_Gonalons |
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Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
imidacloprid sucrose imidacloprid imidazole derivative insecticide nitro derivative adult adulthood age agroecosystem animal behavior animal experiment Apis mellifera appetite Article concentration (parameters) controlled study gustatory response score honeybee learning disorder lethal dose memory consolidation memory disorder mortality nonhuman olfactory memory organism colony proboscis extension response rearing reflex scoring system sensorimotor function state dependent learning sublethal dose young adult animal animal behavior bee conditioned reflex drug effects learning memory Animals Appetitive Behavior Association Learning Bees Behavior, Animal Conditioning, Classical Imidazoles Insecticides Memory Nitro Compounds |
| spellingShingle |
imidacloprid sucrose imidacloprid imidazole derivative insecticide nitro derivative adult adulthood age agroecosystem animal behavior animal experiment Apis mellifera appetite Article concentration (parameters) controlled study gustatory response score honeybee learning disorder lethal dose memory consolidation memory disorder mortality nonhuman olfactory memory organism colony proboscis extension response rearing reflex scoring system sensorimotor function state dependent learning sublethal dose young adult animal animal behavior bee conditioned reflex drug effects learning memory Animals Appetitive Behavior Association Learning Bees Behavior, Animal Conditioning, Classical Imidazoles Insecticides Memory Nitro Compounds Goñalons, C.M. Farina, W.M. Effects of sublethal doses of imidacloprid on young adult honeybee behaviour |
| topic_facet |
imidacloprid sucrose imidacloprid imidazole derivative insecticide nitro derivative adult adulthood age agroecosystem animal behavior animal experiment Apis mellifera appetite Article concentration (parameters) controlled study gustatory response score honeybee learning disorder lethal dose memory consolidation memory disorder mortality nonhuman olfactory memory organism colony proboscis extension response rearing reflex scoring system sensorimotor function state dependent learning sublethal dose young adult animal animal behavior bee conditioned reflex drug effects learning memory Animals Appetitive Behavior Association Learning Bees Behavior, Animal Conditioning, Classical Imidazoles Insecticides Memory Nitro Compounds |
| description |
Imidacloprid (IMI), a neonicotinoid used for its high selective toxicity to insects, is one of the most commonly used pesticides. However, its effect on beneficial insects such as the honeybee Apis mellifera L is still controversial. As young adult workers perform in-hive duties that are crucial for colony maintenance and survival, we aimed to assess the effect of sublethal IMI doses on honeybee behaviour during this period. Also, because this insecticide acts as a cholinergic-nicotinic agonist and these pathways take part in insect learning and memory processes; we used IMI to assess their role and the changes they suffer along early adulthood.We focused on appetitive behaviours based on the proboscis extension response. Laboratory reared adults of 2 to 10 days of age were exposed to sublethal IMI doses (0.25 or 0.50ng) administered orally or topically prior to behavioural assessment. Modification of gustatory responsiveness and impairment of learning and memory were found as a result of IMI exposure. These outcomes differed depending on age of evaluation, type of exposure and IMI dose, being the youngest bees more sensitive and the highest oral dose more toxic. Altogether, these results imply that IMI administered at levels found in agroecosystems can reduce sensitivity to reward and impair associative learning in young honeybees. Therefore, once a nectar inflow with IMI traces is distributed within the hive, it could impair in-door duties with negative consequences on colony performance. © 2015 Mengoni Goñalons, Farina. |
| format |
JOUR |
| author |
Goñalons, C.M. Farina, W.M. |
| author_facet |
Goñalons, C.M. Farina, W.M. |
| author_sort |
Goñalons, C.M. |
| title |
Effects of sublethal doses of imidacloprid on young adult honeybee behaviour |
| title_short |
Effects of sublethal doses of imidacloprid on young adult honeybee behaviour |
| title_full |
Effects of sublethal doses of imidacloprid on young adult honeybee behaviour |
| title_fullStr |
Effects of sublethal doses of imidacloprid on young adult honeybee behaviour |
| title_full_unstemmed |
Effects of sublethal doses of imidacloprid on young adult honeybee behaviour |
| title_sort |
effects of sublethal doses of imidacloprid on young adult honeybee behaviour |
| url |
http://hdl.handle.net/20.500.12110/paper_19326203_v10_n10_p_Gonalons |
| work_keys_str_mv |
AT gonalonscm effectsofsublethaldosesofimidaclopridonyoungadulthoneybeebehaviour AT farinawm effectsofsublethaldosesofimidaclopridonyoungadulthoneybeebehaviour |
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