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RESEARCH PRODUCT
Ecological stoichiometry: a link between developmental speed and physiological stress in an omnivorous insect
Giedrius TrakimasGiedrius TrakimasRonalds KramsRonalds KramsTatjana KramaTatjana KramaRaine KortetShahi HaqueSeveri LuotoSeveri LuotoSarah Eichler InwoodDavid M. ButlerPriit JõersDror HawlenaMarkus J. RantalaDidzis ElfertsJorge Contreras-garduñoIndrikis KramsIndrikis KramsIndrikis Kramssubject
EcophysiologyCognitive Neurosciencemedia_common.quotation_subjectZoologycarbon-to-nitrogen ratioInsectBiologyelemental body compositiondevelopmental speedLife history theoryPredationlcsh:RC321-57103 medical and health sciencesBehavioral Neuroscience0302 clinical medicineEcological stoichiometrycarbon-to-nitrogen ratio ; developmental speed ; ecological stoichiometry ; elemental body composition ; trait-based ecology ; Gryllus integer ; pace-of-life syndrome ; physiological stresslcsh:Neurosciences. Biological psychiatry. NeuropsychiatryOrganismOriginal Researchphysiological stress030304 developmental biologymedia_common0303 health sciencesecological stoichiometryNeuropsychology and Physiological PsychologyGryllus integerBasal metabolic ratetrait-based ecologypace-of-life syndrometa1181Omnivorehuman activities030217 neurology & neurosurgeryNeurosciencedescription
The elemental composition of organisms is a part of a suite of functional traits that may adaptively respond to fluctuating selection pressures. Life history theory predicts that predation risk and resource limitations impose selection pressures on organisms’ developmental time and are further associated with variability in energetic and behavioral traits. Between-individual differences in developmental speed, behaviors and physiology have been explained using the pace-of-life syndrome (POLS) hypothesis. However, how an organism’s developmental speed is linked with elemental body composition, metabolism and behavior is not well understood. We compared elemental body composition, latency to resume activity and resting metabolic rate (RMR) of western stutter-trilling crickets (Gryllus integer) in three selection lines that differ in developmental speed. We found that slowly developing crickets had significantly higher body carbon, lower body nitrogen and higher carbon-to-nitrogen ratio than rapidly developing crickets. Slowly developing crickets had significantly higher RMR than rapidly developing crickets. Male crickets had higher RMR than females. Slowly developing crickets resumed activity faster in an unfamiliar relative to a familiar environment. The rapidly developing crickets did the opposite. The results highlight the tight association between life history, physiology and behavior. This study indicates that traditional methods used in POLS research should be complemented by those used in ecological stoichiometry, resulting in a synthetic approach that potentially advances the whole field of behavioral and physiological ecology.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-03-01 |