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
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10616 - Entomology
Result continuities
Project
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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
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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