Gut microbiomes of mobile predators vary with landscape context and species identity

Ecology and Evolution
Julia TiedeClaudio Gratton

Abstract

Landscape context affects predator-prey interactions and predator diet composition, yet little is known about landscape effects on insect gut microbiomes, a determinant of physiology and condition. Here, we combine laboratory and field experiments to examine the effects of landscape context on the gut bacterial community and body condition of predatory insects. Under laboratory conditions, we found that prey diversity increased bacterial richness in insect guts. In the field, we studied the performance and gut microbiota of six predatory insect species along a landscape complexity gradient in two local habitat types (soybean fields vs. prairie). Insects from soy fields had richer gut bacteria and lower fat content than those from prairies, suggesting better feeding conditions in prairies. Species origin mediated landscape context effects, suggesting differences in foraging of exotic and native predators on a landscape scale. Overall, our study highlights complex interactions among gut microbiota, predator identity, and landscape context.

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Citations

Mar 28, 2019·Microbial Ecology·Michał KolasaŁukasz Kajtoch
Jan 23, 2020·Proceedings. Biological Sciences·Kerri L CoonMichael R Strand
Oct 31, 2019·Parasites & Vectors·Troy J KieranNicole L Gottdenker
Nov 28, 2019·International Journal of Environmental Research and Public Health·Jae-Yeon KangSoyeon Park
Oct 24, 2021·The Science of the Total Environment·Elise N MillarKaren A Kidd

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Methods Mentioned

BETA
PCR
ARISA
dissections

Software Mentioned

Studio
PERMDISP
R
nlme
RStudio
R script
perMANOVA
R scripts
R Development Core Team
ARISA

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