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Abstract:

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.

Registro:

Documento: Artículo
Título:Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants
Autor:Falibene, A.; Josens, R.
Filiación:Grupo de Estudio de Insectos Sociales, Departamento de Biodiversidad Y Biología Experimental, Pab. II, 1428 Buenos Aires, Argentina
Palabras clave: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
Año:2008
Volumen:194
Número:5
Página de inicio:491
Página de fin:500
DOI: http://dx.doi.org/10.1007/s00359-008-0323-5
Título revista:Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology
Título revista abreviado:J. Comp. Physiol. A Neuroethol. Sens. Neural. Behav. Physiol.
ISSN:03407594
CODEN:JCPAD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v194_n5_p491_Falibene

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Citas:

---------- APA ----------
Falibene, A. & Josens, R. (2008) . Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants. Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, 194(5), 491-500.
http://dx.doi.org/10.1007/s00359-008-0323-5
---------- CHICAGO ----------
Falibene, A., Josens, R. "Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants" . Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology 194, no. 5 (2008) : 491-500.
http://dx.doi.org/10.1007/s00359-008-0323-5
---------- MLA ----------
Falibene, A., Josens, R. "Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants" . Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, vol. 194, no. 5, 2008, pp. 491-500.
http://dx.doi.org/10.1007/s00359-008-0323-5
---------- VANCOUVER ----------
Falibene, A., Josens, R. Nectar intake rate is modulated by changes in sucking pump activity according to colony starvation in carpenter ants. J. Comp. Physiol. A Neuroethol. Sens. Neural. Behav. Physiol. 2008;194(5):491-500.
http://dx.doi.org/10.1007/s00359-008-0323-5