Effects of food quality on trade-offs among growth, immunity and survival in the greater wax moth (Galleria mellonella).

Indrikis Krams (Lead / Corresponding author), Sanita Kecko, Katariina Kangassalo, Fhionna R. Moore, Eriks Jankevics, Inna Inashkina, Tatjana Krama, Vilnis Lietuvietis, Laila Meija, Markus J. Rantala

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    Abstract

    The resources available to an individual in any given environment are finite, and variation in life history traits reflect differential allocation of these resources to competing life functions. Nutritional quality of food is of particular importance in these life history decisions. In this study we tested trade-offs among growth, immunity and survival in three groups of greater wax moth (Galleria mellonella) larvae fed on diets of high and average nutritional quality. We found rapid growth and weak immunity (as measured by encapsulation response) in the larvae of the high-energy food group. It took longer to develop on food of average nutritional quality. However, encapsulation response was stronger in this group. The larvae grew longer in the low-energy food group, and had the strongest encapsulation response. We observed the highest survival rates in larvae of the low-energy food group, while the highest mortality rates were observed in the high-energy food group. A significant negative correlation between body mass and the strength of encapsulation response was found only in the high-energy food group revealing significant competition between growth and immunity only at the highest rates of growth. The results of this study help to establish relationships between types of food, its nutritional value and life history traits of G. mellonella larvae.

    Original languageEnglish
    Article number12132
    Pages (from-to)431-439
    Number of pages24
    JournalInsect Science
    Volume22
    Issue number3
    Early online date25 Apr 2014
    DOIs
    Publication statusPublished - Jun 2015

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    Krams, I., Kecko, S., Kangassalo, K., Moore, F. R., Jankevics, E., Inashkina, I., Krama, T., Lietuvietis, V., Meija, L., & Rantala, M. J. (2015). Effects of food quality on trade-offs among growth, immunity and survival in the greater wax moth (Galleria mellonella). Insect Science, 22(3), 431-439. [12132]. https://doi.org/10.1111/1744-7917.12132