Dominant bee species and floral abundance drive parasite temporal dynamics in plant-pollinator communities.

Nature Ecology & Evolution
Peter GraystockScott H McArt

Abstract

Pollinator reductions can leave communities less diverse and potentially at increased risk of infectious diseases. Species-rich plant and bee communities have high species turnover, making the study of disease dynamics challenging. To address how temporal dynamics shape parasite prevalence in plant and bee communities, we screened >5,000 bees and flowers over an entire growing season for five common bee microparasites (Nosema ceranae, Nosema bombi, Crithidia bombi, Crithidia expoeki and neogregarines). Over 110 bee species and 89 flower species were screened, revealing that 42% of bee species (12.2% individual bees) and 70% of flower species (8.7% individual flowers) had at least one parasite in or on them, respectively. Some common flowers (for example, Lychnis flos-cuculi) harboured multiple parasite species whilst others (for example, Lythrum salicaria) had few. Significant temporal variation of parasite prevalence in bees was linked to bee diversity, bee and flower abundance and community composition. Specifically, we found that bee communities had the highest prevalence late in the season, when social bees (Bombus spp. and Apis mellifera) were dominant and bee diversity was lowest. Conversely, prevalence on flowers was low...Continue Reading

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Citations

Apr 30, 2020·Ecology Letters·Laura L FigueroaScott H McArt
Jul 22, 2020·Nature Ecology & Evolution·Marla Spivak, Daniel P Cariveau
Jan 26, 2021·Environmental Entomology·Zoe A PritchardAmy L Toth
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Sep 1, 2020·Current Opinion in Insect Science·Lynn S AdlerRachel L Vannette
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Apr 4, 2021·International Journal for Parasitology·Niels PiotGuy Smagghe
Apr 19, 2021·Trends in Ecology & Evolution·Willem ProesmansAdam J Vanbergen
May 11, 2021·Frontiers in Microbiology·David J PascallLena Wilfert
Sep 30, 2021·Microbial Ecology·Vicente Martínez-LópezPilar De la Rúa
Oct 14, 2021·Proceedings. Biological Sciences·Hamutahl CohenLauren C Ponisio

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Methods Mentioned

BETA
PCR
dissection
dissections

Software Mentioned

mgcv
DescTools
glmmTMB
Dryad
GAM
XNomial
multcomp
Vegan
DHARMa

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