Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants

Dynamics of fluid feeding has been deeply studied in insects. However, the ability to vary the nectar-intake rate depending only on the carbohydrate deprivation has been clearly demonstrated only in Camponotus mus ants. When insect morphometry and fluid properties remain constant, changes in intake...

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Detalles Bibliográficos
Autores principales: Falibene, Agustina L., Josens, Roxana Beatriz
Publicado: 2008
Materias:
Ant
Fluid ingestion
Intake rate
Sucking pump
Suction feeding
animal
ant
article
drinking behavior
electrophysiology
feeding behavior
pathophysiology
physiology
starvation
sucking
Animals
Ants
Drinking Behavior
Electrophysiology
Feeding Behavior
Starvation
Sucking Behavior
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v194_n5_p491_Falibene
http://hdl.handle.net/20.500.12110/paper_03407594_v194_n5_p491_Falibene
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_03407594_v194_n5_p491_Falibene
record_format dspace
spelling paper:paper_03407594_v194_n5_p491_Falibene2023-06-08T15:34:22Z Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants Falibene, Agustina L. Josens, Roxana Beatriz Ant Fluid ingestion Intake rate Sucking pump Suction feeding animal ant article drinking behavior electrophysiology feeding behavior pathophysiology physiology starvation sucking Animals Ants Drinking Behavior Electrophysiology Feeding Behavior Starvation Sucking Behavior Dynamics of fluid feeding has been deeply studied in insects. However, the ability to vary the nectar-intake rate depending only on the carbohydrate deprivation has been clearly demonstrated only in Camponotus mus ants. When insect morphometry and fluid properties remain constant, changes in intake rate could only be attributed to variations in sucking pump activity. Previous records of the electrical activity generated during feeding in C. mus have revealed two different signal patterns: the regular (RP, frequencies: 2-5 Hz) and the irregular (IP, frequencies: 7-12 Hz). This work studies the mechanism underlying food intake-rate modulation in ants by analysing whether these patterns are involved. Behaviour and electrical activity generated by ants at different starvation levels were analysed during feeding on sucrose solutions. Ants were able to modulate the intake rate for a variety of sucrose concentrations (10, 40 and 60%w/w). The IP only occurred for 60% of solutions and its presence did not affect the intake rate. However, during the RP generated under the starved state, we found frequencies up to 7.5 Hz. RP frequencies positively correlated with the intake-rate for all sucrose concentrations. Hence, intake-rate modulation according to sugar deprivation is mainly achieved by the ant's ability to vary the pumping frequency. © 2008 Springer-Verlag. Fil:Falibene, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Josens, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v194_n5_p491_Falibene http://hdl.handle.net/20.500.12110/paper_03407594_v194_n5_p491_Falibene
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Ant
Fluid ingestion
Intake rate
Sucking pump
Suction feeding
animal
ant
article
drinking behavior
electrophysiology
feeding behavior
pathophysiology
physiology
starvation
sucking
Animals
Ants
Drinking Behavior
Electrophysiology
Feeding Behavior
Starvation
Sucking Behavior
spellingShingle Ant
Fluid ingestion
Intake rate
Sucking pump
Suction feeding
animal
ant
article
drinking behavior
electrophysiology
feeding behavior
pathophysiology
physiology
starvation
sucking
Animals
Ants
Drinking Behavior
Electrophysiology
Feeding Behavior
Starvation
Sucking Behavior
Falibene, Agustina L.
Josens, Roxana Beatriz
Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants
topic_facet Ant
Fluid ingestion
Intake rate
Sucking pump
Suction feeding
animal
ant
article
drinking behavior
electrophysiology
feeding behavior
pathophysiology
physiology
starvation
sucking
Animals
Ants
Drinking Behavior
Electrophysiology
Feeding Behavior
Starvation
Sucking Behavior
description Dynamics of fluid feeding has been deeply studied in insects. However, the ability to vary the nectar-intake rate depending only on the carbohydrate deprivation has been clearly demonstrated only in Camponotus mus ants. When insect morphometry and fluid properties remain constant, changes in intake rate could only be attributed to variations in sucking pump activity. Previous records of the electrical activity generated during feeding in C. mus have revealed two different signal patterns: the regular (RP, frequencies: 2-5 Hz) and the irregular (IP, frequencies: 7-12 Hz). This work studies the mechanism underlying food intake-rate modulation in ants by analysing whether these patterns are involved. Behaviour and electrical activity generated by ants at different starvation levels were analysed during feeding on sucrose solutions. Ants were able to modulate the intake rate for a variety of sucrose concentrations (10, 40 and 60%w/w). The IP only occurred for 60% of solutions and its presence did not affect the intake rate. However, during the RP generated under the starved state, we found frequencies up to 7.5 Hz. RP frequencies positively correlated with the intake-rate for all sucrose concentrations. Hence, intake-rate modulation according to sugar deprivation is mainly achieved by the ant's ability to vary the pumping frequency. © 2008 Springer-Verlag.
author Falibene, Agustina L.
Josens, Roxana Beatriz
author_facet Falibene, Agustina L.
Josens, Roxana Beatriz
author_sort Falibene, Agustina L.
title Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants
title_short Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants
title_full Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants
title_fullStr Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants
title_full_unstemmed Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants
title_sort nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v194_n5_p491_Falibene
http://hdl.handle.net/20.500.12110/paper_03407594_v194_n5_p491_Falibene
work_keys_str_mv AT falibeneagustinal nectarintakerateismodulatedbychangesinsuckingpumpactivityaccordingtocolonystarvationincarpenterants
AT josensroxanabeatriz nectarintakerateismodulatedbychangesinsuckingpumpactivityaccordingtocolonystarvationincarpenterants
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