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Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
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Published on: November 6, 2015

Caterpillar setae: aislamiento para una ectotermia.

T M Casey, J R Hegel

    Science (New York, N.Y.)
    |December 4, 1981
    PubMed
    Resumen
    Este resumen es generado por máquina.

    Las orugas de la polilla gitana usan pelos corporales especializados llamados setae para el aislamiento. Estos setae reducen la pérdida de calor por convección pero no por radiación, y los cambios de postura alteran estos efectos térmicos.

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    Área de la Ciencia:

    • Zoología Zoología Zoología.
    • La termorregulación de los insectos.
    • La biofísica es la biofísica.

    Sus antecedentes:

    • Las orugas de la polilla gitana poseen distintas setae dorsales y laterales.
    • La morfología de las setas varía según las regiones del cuerpo, lo que sugiere diferencias funcionales.

    Objetivo del estudio:

    • Para investigar el papel de las setas en el aislamiento térmico de las orugas de la polilla gitana.
    • Para determinar cómo las setae afectan el intercambio de calor convectivo y radiativo.
    • Para examinar la influencia de la postura en la termorregulación mediada por seta.

    Principales métodos:

    • Análisis comparativo de las setas dorsales y laterales.
    • Medición de las tasas de intercambio de calor convectivo y radiativo.
    • Observación de cambios de comportamiento en la postura.

    Principales resultados:

    • Las setas laterales son largas y suaves, mientras que las setas dorsales son cortas y rígidas.
    • Setae reduce significativamente la pérdida de calor por convección sin afectar el intercambio de calor radiativo.
    • La alteración de la postura anula el efecto aislante de las setas al aumentar la convección y la absorción de calor.

    Conclusiones:

    • Las setas proporcionan un aislamiento térmico selectivo para las orugas de la polilla gitana.
    • La postura es una adaptación conductual crítica que influye en la efectividad de la termorregulación basada en seta.