Honeybees assess changes in nectar flow within a single foraging bout

Forager honeybees returning to the hive after a successful foraging trip unload the collected liquid to recipient hivemates through mouth-to-mouth food exchange contacts (trophallaxis). The speed at which the liquid is transferred (unloading rate) from donor to recipient is related to the profitabil...

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Autores principales:	Wainselboim, Alejandro Javier, Roces, Flavio, Farina, Walter Marcelo
Publicado:	2002
Materias:	foraging behavior honeybee nectar trophallaxis unloading Apidae Apis mellifera Apoidea Hymenoptera
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00033472_v63_n1_p1_Wainselboim http://hdl.handle.net/20.500.12110/paper_00033472_v63_n1_p1_Wainselboim
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00033472_v63_n1_p1_Wainselboim
record_format	dspace
spelling	paper:paper_00033472_v63_n1_p1_Wainselboim2023-06-08T14:24:19Z Honeybees assess changes in nectar flow within a single foraging bout Wainselboim, Alejandro Javier Roces, Flavio Farina, Walter Marcelo foraging behavior honeybee nectar trophallaxis unloading Apidae Apis mellifera Apoidea Hymenoptera Forager honeybees returning to the hive after a successful foraging trip unload the collected liquid to recipient hivemates through mouth-to-mouth food exchange contacts (trophallaxis). The speed at which the liquid is transferred (unloading rate) from donor to recipient is related to the profitability offered by the recently visited food source. Two of the main characteristics that define food source profitability are the flow of solution delivered by the feeder and the time invested by the forager feeding at the source (feeding time). To investigate which of these two variables is related to unloading rate, we individually trained donor foragers to a regulated-flow feeder that presented changes in the delivered flow of solution within a single foraging bout, while feeding time remained constant. With the range of flows used, bees attained maximum crop loads in all experiments. During the subsequent trophallactic encounter with an unfed recipient hivemate, unloading rate was differentially affected by the changes in flow of solution presented during the previous foraging trip at the source, depending on whether there had been an increase or a decrease of flow rate within that visit. Foragers unloaded at lower rates when they experienced a decrease in flow rate, but did not increase the unloading rate when presented with an increase at the food source. Thus, forager honeybees seem to be able to detect variations in the delivered flow of solution, since they modulate unloading rate in relation to these changes, although decreases in food value seem to be perceptually weighted in relation to increases, independently of the time invested in the food-gathering process. © 2002 The Association for the Study of Animal Behaviour. Fil:Wainselboim, A.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Roces, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Farina, W.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00033472_v63_n1_p1_Wainselboim http://hdl.handle.net/20.500.12110/paper_00033472_v63_n1_p1_Wainselboim
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	foraging behavior honeybee nectar trophallaxis unloading Apidae Apis mellifera Apoidea Hymenoptera
spellingShingle	foraging behavior honeybee nectar trophallaxis unloading Apidae Apis mellifera Apoidea Hymenoptera Wainselboim, Alejandro Javier Roces, Flavio Farina, Walter Marcelo Honeybees assess changes in nectar flow within a single foraging bout
topic_facet	foraging behavior honeybee nectar trophallaxis unloading Apidae Apis mellifera Apoidea Hymenoptera
description	Forager honeybees returning to the hive after a successful foraging trip unload the collected liquid to recipient hivemates through mouth-to-mouth food exchange contacts (trophallaxis). The speed at which the liquid is transferred (unloading rate) from donor to recipient is related to the profitability offered by the recently visited food source. Two of the main characteristics that define food source profitability are the flow of solution delivered by the feeder and the time invested by the forager feeding at the source (feeding time). To investigate which of these two variables is related to unloading rate, we individually trained donor foragers to a regulated-flow feeder that presented changes in the delivered flow of solution within a single foraging bout, while feeding time remained constant. With the range of flows used, bees attained maximum crop loads in all experiments. During the subsequent trophallactic encounter with an unfed recipient hivemate, unloading rate was differentially affected by the changes in flow of solution presented during the previous foraging trip at the source, depending on whether there had been an increase or a decrease of flow rate within that visit. Foragers unloaded at lower rates when they experienced a decrease in flow rate, but did not increase the unloading rate when presented with an increase at the food source. Thus, forager honeybees seem to be able to detect variations in the delivered flow of solution, since they modulate unloading rate in relation to these changes, although decreases in food value seem to be perceptually weighted in relation to increases, independently of the time invested in the food-gathering process. © 2002 The Association for the Study of Animal Behaviour.
author	Wainselboim, Alejandro Javier Roces, Flavio Farina, Walter Marcelo
author_facet	Wainselboim, Alejandro Javier Roces, Flavio Farina, Walter Marcelo
author_sort	Wainselboim, Alejandro Javier
title	Honeybees assess changes in nectar flow within a single foraging bout
title_short	Honeybees assess changes in nectar flow within a single foraging bout
title_full	Honeybees assess changes in nectar flow within a single foraging bout
title_fullStr	Honeybees assess changes in nectar flow within a single foraging bout
title_full_unstemmed	Honeybees assess changes in nectar flow within a single foraging bout
title_sort	honeybees assess changes in nectar flow within a single foraging bout
publishDate	2002
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00033472_v63_n1_p1_Wainselboim http://hdl.handle.net/20.500.12110/paper_00033472_v63_n1_p1_Wainselboim
work_keys_str_mv	AT wainselboimalejandrojavier honeybeesassesschangesinnectarflowwithinasingleforagingbout AT rocesflavio honeybeesassesschangesinnectarflowwithinasingleforagingbout AT farinawaltermarcelo honeybeesassesschangesinnectarflowwithinasingleforagingbout
_version_	1768542200192303104

Honeybees assess changes in nectar flow within a single foraging bout

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