Olfactory learning by means of trophallaxis in Apis mellifera
Early reports indicate that trophallaxis, i.e. the exchange of liquid food by mouth, may allow honeybees to assign nectar odours with predictive values to anticipate biological meaningful reward stimuli. Nevertheless, this type of learning has not been addressed directly. In the present study, pairs...
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2005
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00220949_v208_n4_p671_Gil http://hdl.handle.net/20.500.12110/paper_00220949_v208_n4_p671_Gil |
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paper:paper_00220949_v208_n4_p671_Gil2023-06-08T14:45:33Z Olfactory learning by means of trophallaxis in Apis mellifera Gil, Mariana De Marco, Rodrigo Apis mellifera Associative learning Honeybee Olfactory conditioning Trophallaxis analysis of variance animal article association bee comparative study conditioned reflex feeding behavior learning odor physiology Analysis of Variance Animals Association Learning Bees Conditioning, Classical Cues Feeding Behavior Odors Smell Animalia Apis mellifera Early reports indicate that trophallaxis, i.e. the exchange of liquid food by mouth, may allow honeybees to assign nectar odours with predictive values to anticipate biological meaningful reward stimuli. Nevertheless, this type of learning has not been addressed directly. In the present study, pairs of animals were isolated to induce trophallaxis under controlled conditions and, afterwards, the honeybee proboscis extension reflex was used to investigate the possible role of trophallaxis in learning olfactory cues. The results demonstrate unambiguously that associative learning actually occurs by means of trophallaxis. Animals associate the odour (as the conditioned stimulus or CS) and the sucrose (as the unconditioned stimulus or US) present in the solution they receive through trophallaxis. Moreover, this particular kind of learning leads to long-term olfactory memories after a single learning trial, even when trophallaxis is brief. In addition, we found that the strength of association is clearly affected by CS and US intensity as well as the recent previous foraging experiences of the animals. Comparisons are presented among several features of the learning during trophallaxis and the classical conditioning of the proboscis extension reflex with restrained subjects. Finally, the relevance of learning through trophallaxis in the task of successful foraging is discussed. Fil:Gil, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:De Marco, R.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00220949_v208_n4_p671_Gil http://hdl.handle.net/20.500.12110/paper_00220949_v208_n4_p671_Gil |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Apis mellifera Associative learning Honeybee Olfactory conditioning Trophallaxis analysis of variance animal article association bee comparative study conditioned reflex feeding behavior learning odor physiology Analysis of Variance Animals Association Learning Bees Conditioning, Classical Cues Feeding Behavior Odors Smell Animalia Apis mellifera |
| spellingShingle |
Apis mellifera Associative learning Honeybee Olfactory conditioning Trophallaxis analysis of variance animal article association bee comparative study conditioned reflex feeding behavior learning odor physiology Analysis of Variance Animals Association Learning Bees Conditioning, Classical Cues Feeding Behavior Odors Smell Animalia Apis mellifera Gil, Mariana De Marco, Rodrigo Olfactory learning by means of trophallaxis in Apis mellifera |
| topic_facet |
Apis mellifera Associative learning Honeybee Olfactory conditioning Trophallaxis analysis of variance animal article association bee comparative study conditioned reflex feeding behavior learning odor physiology Analysis of Variance Animals Association Learning Bees Conditioning, Classical Cues Feeding Behavior Odors Smell Animalia Apis mellifera |
| description |
Early reports indicate that trophallaxis, i.e. the exchange of liquid food by mouth, may allow honeybees to assign nectar odours with predictive values to anticipate biological meaningful reward stimuli. Nevertheless, this type of learning has not been addressed directly. In the present study, pairs of animals were isolated to induce trophallaxis under controlled conditions and, afterwards, the honeybee proboscis extension reflex was used to investigate the possible role of trophallaxis in learning olfactory cues. The results demonstrate unambiguously that associative learning actually occurs by means of trophallaxis. Animals associate the odour (as the conditioned stimulus or CS) and the sucrose (as the unconditioned stimulus or US) present in the solution they receive through trophallaxis. Moreover, this particular kind of learning leads to long-term olfactory memories after a single learning trial, even when trophallaxis is brief. In addition, we found that the strength of association is clearly affected by CS and US intensity as well as the recent previous foraging experiences of the animals. Comparisons are presented among several features of the learning during trophallaxis and the classical conditioning of the proboscis extension reflex with restrained subjects. Finally, the relevance of learning through trophallaxis in the task of successful foraging is discussed. |
| author |
Gil, Mariana De Marco, Rodrigo |
| author_facet |
Gil, Mariana De Marco, Rodrigo |
| author_sort |
Gil, Mariana |
| title |
Olfactory learning by means of trophallaxis in Apis mellifera |
| title_short |
Olfactory learning by means of trophallaxis in Apis mellifera |
| title_full |
Olfactory learning by means of trophallaxis in Apis mellifera |
| title_fullStr |
Olfactory learning by means of trophallaxis in Apis mellifera |
| title_full_unstemmed |
Olfactory learning by means of trophallaxis in Apis mellifera |
| title_sort |
olfactory learning by means of trophallaxis in apis mellifera |
| publishDate |
2005 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00220949_v208_n4_p671_Gil http://hdl.handle.net/20.500.12110/paper_00220949_v208_n4_p671_Gil |
| work_keys_str_mv |
AT gilmariana olfactorylearningbymeansoftrophallaxisinapismellifera AT demarcorodrigo olfactorylearningbymeansoftrophallaxisinapismellifera |
| _version_ |
1768542020963401728 |