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Artículo

Environmental temperature affects the dynamics of ingestion in the nectivorous ant Camponotus mus

Falibene, AgustinaIcon ; Josens, Roxana BeatrizIcon
Fecha de publicación: 10/2014
Editorial: Elsevier
Revista: Journal of Insect Physiology
ISSN: 0022-1910
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Zoología, Ornitología, Entomología, Etología

Resumen

Environmental temperature influences physiology and behavior in animals in general and is particularly determinant in ectotherms. Not least because temperature defines metabolism and body temperature, muscle activity in insects also strongly depends on this factor. Here, we analyzed how environmental temperature influences the dynamics of ingestion due to its effect on the sucking pump muscles in the nectivorous ants Camponotus mus. Feeding behavior and sucking pump activity during sucrose solution ingestion were first recorded in a natural environment in an urban setting throughout the day and in different seasons. Then, controlled temperature experiments were performed in the laboratory. In both situations, feeding time decreased and pumping frequency increased with temperature. However, different pumping frequencies under a same temperature were also observed in different seasons. Besides, in the laboratory, the volume of solution ingested increased with temperature. Consequently, intake rate increased when temperature rose. This change was exclusively promoted by a variation in the pumping frequency while volume taken in per pump contraction was not affected by temperature. In summary, environmental temperature modified the dynamics of ingestion and feeding behavior by directly affecting pumping frequency.
Palabras clave: Temperature , Sucking Pump , Muscle Activity , Nectar Feeding
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/20106
DOI: http://dx.doi.org/10.1016/j.jinsphys.2014.09.011
URL: http://www.sciencedirect.com/science/article/pii/S0022191014001887
Colecciones
Articulos(IFIBYNE)
Articulos de INST.DE FISIOL., BIOL.MOLECULAR Y NEUROCIENCIAS
Citación
Falibene, Agustina; Josens, Roxana Beatriz; Environmental temperature affects the dynamics of ingestion in the nectivorous ant Camponotus mus; Elsevier; Journal of Insect Physiology; 71; 10-2014; 14-20
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