Rachel Lee Vannette

Supplemental water modulates pollinator visitation on resource-rich plant species

This study examines how supplemental watering affects floral traits and pollinator visitation in two native plant species, finding that water additions increase pollinator visits, particularly for sweat bees and bumble bees.

Heatwaves do not impact bacteria within pollen provisions, despite accelerating blue orchard bee (Osmia lignaria) larval development

This study examines the impact of heatwaves on bacterial communities in blue orchard bee pollen provisions and larval development, finding no effect on bacteria but accelerated larval development.

Temperate Phage Shape Honey Bee Gut Microbiome Structure and Response to Antibiotic Treatment

This study shows that a temperate phage can both aid Bifidobacterium gut colonization and increase sensitivity to antibiotics in honey bees.

Comparative nectar metabolomics reveals sucrose-nitrogen tradeoffs and chemical drivers of microbial growth in floral nectar

The paper compares nectar metabolomics across 31 plant species to identify chemical drivers of microbial growth and tradeoffs between sucrose and nitrogen compounds.

Floral microbes provisioned by Osmia lignaria establish in larval food stores, but do not affect bee development or survival

The paper investigates microbial establishment in floral habitats and larval food stores of blue orchard bees and finds no negative effects on larval development or survival.

Contribution of floral transmission to the assembly and health impact of bacterial communities in watermelon seeds

The paper investigates how bacteria from watermelon flowers contribute to seed microbiota and plant fitness, finding that floral transmission significantly influences bacterial diversity and seed germination.

Bee Microbiomes Harbor Diverse Antimicrobial Resistance Genes on Plasmids

This study profiles antimicrobial resistance genes in bee microbiomes, finding higher diversity on plasmids in honey bees compared to bumble bees and different tetracycline resistance mechanisms.

Effects of live yeasts and their metabolic products on bumble bee microcolony development

This study examines how live yeasts and their metabolic products affect bumble bee microcolony development, finding context-dependent effects on reproduction, survival, and pathogen presence.

Pollen diet, more than geographic distance, shapes provision microbiome composition in two species of cavity-nesting bees

The study shows that pollen diet, not geographic distance, primarily shapes the microbiome composition in provisions of two cavity-nesting bee species.

Plant species vary in nectar peroxide, an antimicrobial defense tolerated by some bacteria and yeasts

The paper measures hydrogen peroxide levels in nectar across plant species and examines microbial tolerance and community dynamics.

Targeted Viromes and Total Metagenomes Capture Distinct Components of Bee Gut Phage Communities

This study compares total metagenomes and viromes to assess phage communities in bee guts, finding that viromes enrich for phage in honey bees but total metagenomes capture more diverse phage in bumble bees.

Niche-Based Priority Effects Predict Microbe Resistance to Erwinia amylovora in Pear Nectar

The paper assesses how microbial biological control agents (mBCAs) affect Erwinia amylovora resistance in pear nectar through priority effects, finding that nectar pH and sucrose changes are key predictors.

Plant species within Streptanthoid Complex associate with distinct microbial communities that shift to be more similar under drought

The paper investigates how drought affects microbial communities in eight Streptanthus species and finds that drought reduces microbial dissimilarity across species.