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To eat or get heat: Behavioral trade-offs between thermoregulation and feeding in gregarious necrophagous larvae

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F18%3A43911262" target="_blank" >RIV/62156489:43210/18:43911262 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1111/1744-7917.12465" target="_blank" >https://doi.org/10.1111/1744-7917.12465</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1111/1744-7917.12465" target="_blank" >10.1111/1744-7917.12465</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    To eat or get heat: Behavioral trade-offs between thermoregulation and feeding in gregarious necrophagous larvae

  • Original language description

    The thermoregulation behavior of Lucilia sericata larvae (Diptera: Calliphoridae), a necrophagous species that feeds on vertebrate cadavers, was investigated. These larvae require high heat incomes to develop, and can elevate temperatures by forming large aggregates. We hypothesized that L. sericata larvae should continue to feed at temperatures up to 38oC, which can be reached inside larval masses. Thermal regulation behavior such as movement between a hot food spot and colder areas was also postulated. The hypotheses were tested by tracking for 1h the activity of single, starved third instar larvae in a Petri dish containing one food spot (FS) that was heated to a constant temperature of 25oC, 34oC or 38oC with an ambient temperature of 25oC. The influence of previous conspecific activity in the food on larval behavior was also tested. The crops of larvae were dissected to monitor food content in the digestive systems. Based on relative crop measurements, larvae fed at all food temperatures, but temperature strongly affected larval behavior and kinematics. The total time spent by larvae in FS and the duration of each stay decreased at high FS temperature. Previous activity of conspecifics in the food slightly increased the time spent by larvae in FS and also decreased the average distance to FS. Therefore, necrophagous L. sericata larvae likely thermoregulate during normal feeding activities by adjusting to local fluctuations in temperature, particularly inside maggot masses. By maintaining a steady internal body temperature, larvae likely reduce their development time.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10616 - Entomology

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Insect Science

  • ISSN

    1672-9609

  • e-ISSN

  • Volume of the periodical

    25

  • Issue of the periodical within the volume

    5

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    11

  • Pages from-to

    883-893

  • UT code for WoS article

    000444415000014

  • EID of the result in the Scopus database

    2-s2.0-85024406948